Tait TM8100 mobiles Service Manual
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Tait TM8100 mobiles Service Manual

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Table of Contents

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See also: User Manual , Installation Manual
TM8100 mobiles
TM8200 mobiles
Service Manual
MMA-00005-05
Issue 5
November 2007

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Summary of Contents for Tait TM8100 mobiles

  • Page 1 TM8100 mobiles TM8200 mobiles Service Manual MMA-00005-05 Issue 5 November 2007...

  • Page 2: Contact Information

    Waste Electrical and Electronic Equipment Limited. Directive requires that this product be disposed of The word TAIT and the TAIT logo are trademarks of separately from the general waste stream when its Tait Electronics Limited. service life is over. Please be environmentally...

  • Page 3: Table Of Contents

    26 Installing an Enhanced Remote Kit ......545 27 TMAA03-31 Control Head Interface Box ....561 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 4 38 TOPA-SV-024 Test Unit....... . 613 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 5: Preface

    Control-head board (graphical display) : 220-01718-01 ■ Control-head board (RJ45) : 220-01720-05 ■ : version 3.02 Programming application (TM8100) ■ : version 4.02 Programming application (TM8200) ■ : version 4.05 Calibration application ■ TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 6: Associated Documentation

    The characters xx represent the issue number of the documentation. All available documentation is provided on the TM8100/TM8200 Service CD, product code TMAA20-01. Updates may also be published on the Tait support website. TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 7: Publication Record

    This alert is used when there is the risk of minor or moderate injury to people. Important This alert is used to warn about the risk of equipment dam- age or malfunction. TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 8: Abbreviations

    External PTT (Press-To-Talk) Electrostatic Discharge Frequency Control Loop Front-End Forward Error Correction FPGA Field-Programmable Gate Array GPIO General Purpose Input/Output Global Positioning System Graphical User Interface Integrated Circuit Internal Part Number Intermediate Frequency TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 9 Sub Miniature Version A Surface-Mount Device Surface-Mount Technology SMPS Switch-Mode Power Supply Serial Peripheral Interface TCXO Temperature-Compensated Crystal Oscillator Tait Electronics Limited Ultra High Frequency Voltage-Controlled Oscillator VCXO Voltage-Controlled Crystal Oscillator Very High Frequency TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 10 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 11: Part A - Description Of The Radio

    3.11 RJ45 Control Head........102 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 12 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 13: Introduction

    This section also gives an overview of the labels on the product and the specifications. Figure 1.1 TM8200 mobile radios TM8235 radio with 3-digit-display control head TM8250 or TM8255 radio with graphical-display control head TM8252 radio with RJ45 control head TM8100/TM8200 Service Manual Introduction © Tait Electronics Limited November 2007...
  • Page 14 Figure 1.2 TM8100 mobile radios TM8115 radio with 2-digit-display control head TM8110 radio with 1-digit-display control head TM8105 radio with blank control head rear view (25W radio) Introduction TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 15: Frequency Bands

    B1 (50W) ■ G2 (40W) ■ H5 (40W) ■ H7 (40W) ■ K5 (35W/30W) ■ The 25W radio is available in the following frequency bands: ■ ■ ■ ■ ■ ■ TM8100/TM8200 Service Manual Introduction © Tait Electronics Limited November 2007...

  • Page 16: Accessories

    Accessories Tait offers a large variety of audio accessories, installation kits, internal options boards and other accessories such as a desktop power supply. For more information on these accessories refer to “Part C – Accessories” on page 465. The radios allow for the connection of a comprehensive range of audio...

  • Page 17: Product Codes

    ■ dd identifies badging and configuration variants ■ [ee] (optional) identifies variations from the standard firmware and or ■ data load at the time of manufacture. TM8100/TM8200 Service Manual Introduction © Tait Electronics Limited November 2007...
  • Page 18 50 1-digit-display control head Tait, TM8110 Tait, Auriga (dual badge) 60 3-digit-display control head Tait TM8235 Note Product codes not listed here identify control-head configurations of the digital TM9100 product line. Introduction TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 19: Labels

    Inc and Tait Electronics Ltd. 450-530 MHz Details in user documentation. Tait Electronics Ltd, NZ Specifications For up-to-date specifications, refer to the area on the TaitWorld website reserved for TM8100 and TM8200 products. TM8100/TM8200 Service Manual Introduction © Tait Electronics Limited November 2007...
  • Page 20 Introduction TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 21: Description

    Two dot-dash-dot marks at the bottom of the radio body indicate the positions where a screwdriver is applied to separate the control head from the radio body. TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 22 The internal options board connects to the internal options connector of the main board. Tait offers a range of internal options board, which are described in the accessories section of this manual. For more information on how to create your own internal options board, contact Tait Electronics Limited.
  • Page 23 Components of the radio body >25W thermal paste 3630z_01 cover chassis screw M4x16 (x4) auxiliary connector bung lid assembly screws M4x16 (x2) screw M3x10 (x5) seal main-board assembly gap pad (>25W radio only) TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 24 25W radio. The grooves at the bottom of the >25W radio are deeper than those of the 25W radio. For additional heat dissipation, the >25W radio has an additional L-shaped >25W gap pad between the chassis and the main board. Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 25 (>25W radio only) digital board hexagonal nut internal options connector lock washer auxiliary connector RF connector inner foam D-range seal main board heat-transfer block 1& control-head connector outer foam seal TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 26 Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 27 LCD with self-adhesive coating. The LCD assembly has a loom, which runs through a slot in the space frame connects to a connector on the rear side of the control-head board TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 28 A slot at the top edge of the space frame allows the loom of the LCD assembly to run to the control-head board. Two identical ring seals fitted to grooves around the perimeter of the Seals space frame provide for IP54 class protection. Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 29 LCD assembly main keypad power keypad concealed microphone (optional) front panel assembly 1& knob for volume-control potentiometer 1& 3451z_02 TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 30 For more information refer to “Control-Head Connectors” on page The adapter flange is an injection-moulded plastic part, which is fitted to Adapter Flange the space frame with two M4x12 Taptite screws Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 31 LCD and the control-head board is ensured by two elastomeric strips held in place by the space frame. 1. The speaker clamp and a new space frame were introduced in April 2007. TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 32 Control-Head Loom connector on the control-head board to the control-head connector of the radio body. For more information refer to “Control-Head Connectors” on page Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 33 3 x 8 PT screw (x3) control-head board elastomeric strip (x2) space frame speaker clamp speaker short light pipe long light pipe keypad concealed microphone (optional) front panel assembly knob for volume-control potentiometer TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 34 , and is held in place by two clips of the PCB bracket The PCB bracket is an injection-moulded plastic part which is fitted to PCB Bracket the front panel with four 3x8 PT screws Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 35 Figure 2.7 Components of the RJ45 control head control-head board PCB bracket control-head loom with female-female adapter front panel 3 x 8 PT screw (x4) RJ45 bung (x2) TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 36 Components of the blank control head 3/16 inch (5mm) 4lb·in (0.45N·m) 3829z_01 UNX 4-40 x 3/16-inch pan Pozi screw (x2) front panel cover seal foam seal lock-nut (pair) control-head loom with female-female adapter Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 37: User Interfaces

    1- and 2-digit-display control head: function keys 1to 4 3-digit-display function key 1 shift key function key 2 control head: clear key TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...

  • Page 38: Connectors

    For information on the factory connector of the main board and the internal connectors of the control head, refer to the PCB information of the main boards and the control-head board. Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 39 Connectors of the radio body (25W radio) front view control-head connector provision for provision for external options additional connector connector rear view auxiliary power connector connector connector internal options connector top view TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 40 Connectors of the control head with 1-, 2- or 3-digit display front view microphone control-head connector connector for speaker connector rear view pads for leads of connectors for concealed microphone optional circuit board Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 41 External speaker output. Balanced load Analog configuration. rear view SPK+ External speaker output. Balanced load Analog 25W radio configuration. 13V8_BATT DC power input for radio body and Power control head. rear view TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 42 For more information on hardware links refer to “Power-Sense Options” on page b. Can be switched or unswitched. For more information refer to “Connector Power Supply Options” on page Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 43 This external options connector can be a 9-way standard-density or 15-way high-density D-range connector. If no internal options board is installed (standard configuration), the hole for the external options connector is sealed by a bung. TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 44 SPK+ Speaker audio output for non-remote Analog control head. Balanced load configuration. a. Can be switched or unswitched. For more information refer to “Connector Power Supply Options” on page Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 45: Microphone Connector

    3.3V CMOS Receive data. PRG_ON_OFF Hardware power on/software-power Digital off input. Active low. a. Can be switched or unswitched. For more information refer to “Connector Power Supply Options” on page TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 46 Digital Also carries hookswitch signal. AGND Analog ground Ground DGND Digital ground Ground a. Can be switched or unswitched. For more information refer to “Connector Power Supply Options” on page Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 47: Hardware And Software Architecture

    No separate circuit board is required for a dynamic microphone. TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 48 Figure 2.14 Hardware architecture of the main board Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 49 ■ control-head application database. ■ Hardware and interface drivers are part of the boot code, the RISC code, and—in the case of the main board—the DSP code. TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 50 RISC processor executing the radio application code, ■ including application software the DSP executing the DSP code for processing of digital signals ■ the custom logic executing additional digital signal processing. ■ Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 51 Tools > > Download command of the programming application. For more information, refer to the online help of the programming application and to the technical notes accompanying the software files. TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...

  • Page 52: Operation In Receive Mode

    (on FPGA of digital board) ■ DSP (on digital board). ■ The receive path consists of three major functional parts: RF hardware ■ digital baseband processing ■ audio processing and signalling. ■ Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 53 Figure 2.16 Transceiver operation TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 54 (tens of nanoseconds) and is quicker than the time taken for the RF signal to pass through the front-end hardware, so that the LO is disabled before the impulse reaches the IF stage where it could cause crystal filter ring. Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 55 The following items within the receiver path are factory-calibrated: Calibration front-end tuning ■ ■ noise squelch ■ RSSI. ■ Information on the calibration of these items is given in the on-line help facility of the calibration application. TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 56 This enables fixed level audio feed to the remote control head, and independent volume control of the external speaker and the speaker of the remote control head. Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 57: Operation In Transmit Mode

    (on FPGA of digital board) ■ DSP block (on digital board). ■ The transmit path consists of three major functional parts: audio processing and signalling ■ frequency synthesizer ■ RF transmitter. ■ TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 58 The data and signalling encoders inject their signals into various points Data and Signalling Encoders within the audio processing chain. The injection point depends on the encoders bandwidth and whether pre-emphasis is required. Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 59 Initially, the VCO generates an unregulated frequency in the required range. This is fed to the PLL device (ADF4111) and divided down by a programmed ratio to approximately 25kHz. For the receive VCO in the K5 TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 60 72kHz receive for the K5 band). Higher resolution cannot be achieved owing to acquisition-time requirements and so for any given frequency the error could be as high as ±12.5kHz. This error is corrected by altering the Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 61 FCL nominal frequency; the TCXO frequency itself is not adjusted. The items KVCO and KVCXO are the control sensitivities of the RF VCO (in MHz/V) and VCXO (in kHz/V) respectively. The latter has temperature compensation. TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 62 The PA output power is controlled by varying driver gate bias voltage that has a calibrated maximum limit to prevent overdrive. The power control signal is supplied by a 13-bit DAC driven by custom logic. Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 63 Tx or Rx circuitry of the radio. In addition to the switching functionality, the PIN switch is used to provide attenuation to the Rx front end in high signal-strength locations. TM8100/TM8200 Service Manual Description © Tait Electronics Limited November 2007...
  • Page 64 Description TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 65: Circuit Descriptions

    For up-to-date schematics refer to the relevant PCB information (refer to Sample Schematics “Associated Documentation” on page TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 66 Figure 3.1 Main board hardware architecture Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 67: Transmitter Circuitry

    Q309 and Q310 to produce a typical output power of 40W when measured after the series capacitors (C348, C349, C350) at the start of the directional coupler. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 68 Figure 3.2 Block diagram of the transmitter circuitry Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 69 For added protection, a temperature sensor ensures that the transmitter Temperature Sensor power is reduced to very low levels should a temperature threshold be exceeded. If the temperature does not decrease, the transmitter is switched off. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...

  • Page 70: Receiver Circuitry

    LO input in order to provide the quadrature LO frequencies required internally. The second LO frequency is synthesized by an integer PLL (IC403), which uses the TCXO frequency SYN RX OSC (13.0000 MHz) as its reference. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 71 Figure 3.3 Block diagram of the receiver circuitry (05 issue boards, B1, H5, H6 bands) TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 72 Figure 3.4 Block diagram of the receiver circuitry (B1, H5, H6 bands after PCB issue 05 and other bands) Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 73 DIG SYS CLK 12.288MHz.) The receiver requires the TCXO calibration to be completed to ensure that the channel filtering is centred, thereby minimizing distortion. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 74 Front-End AGC Control receiver signals with minimal receiver distortion. This is very important for the correct operation of the THSD modem (Tait High-Speed Data). It enables THSD to maintain residual BER of < 10 . The front-end AGC is controlled by an algorithm which monitors the RSSI and configures the DAC to turn on the front-end attenuation via the receive pin diode of the PIN switch.

  • Page 75: Frequency Synthesizer Circuitry

    (switching circuit) and a detector. The output voltage is monitored by a feedback circuit that controls the DC bias of the switching circuit to maintain a constant output voltage. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 76 The loop filter’s output voltage will change accordingly, causing the VCO frequency to change in proportion. The synthesizer design is such that normally the VCO frequency will be automatically corrected. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 77 Figure 3.5 Block diagram of the frequency synthesizer circuitry TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 78 The resistors and capacitors of the filter affect both the switching time and the stability of the synthesizer; the values of these components have been carefully selected to give optimum control characteristics. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 79 1MHz or 10MHz in less than 4.5ms. The ramp-up and ramp-down of the transmitter, which totals 1ms, extends this change-over time to 5.5ms.) TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...

  • Page 80: Frequency Control Loop

    VCXO is frequency modulated directly by the relevant modulation information. The latter may be the microphone audio, an audio tap-in signal, internal modem signals, or any combination of these. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 81: Codec And Audio Circuitry

    ■ input of auxiliary audio signal ■ output of auxiliary audio signal. ■ The sections of the circuitry concerned with these functions are described in the following sections. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 82 Figure 3.8 Block diagram of the CODEC and audio circuitry Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 83 ITF AUD TAP IN Input input of IC205. R241 combined with internal clamping diodes in IC205 provide DC protection for the ADC input. IC205 provides the input biasing of approximately 1.5V. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 84 The DC bias for this signal path is provided by IC204 and is approximately 1.2V when operational. The offset at CDC AUD TAP OUT approximately 2.4V owing to the gain of the buffer amplifier. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 85: Power Supply Circuitry

    ■ auxiliary power sense (ignition sense) ■ internal-options power sense ■ no power sense ■ emergency power sense. ■ TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 86 CH ON OFF clock ITF IOP GPIO7 digital AUX GPI3 AUX GPI2 asynchronous serial data +3V3 synchronous serial data Interface +13V8 SW 13V8 Switch Reverse +13V8 BATT Polarity Protection Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 87 TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 88 (hidden) push-button or toggle floating inactive switch, which connects it to ground. LK3 in AUX GPI2 must be left floating LK3 out AUX GPI2 can be used as GPI. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 89 While in this mode the radio cycles between transmit and receive. To exit the emergency mode, the needs to be pressed again. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...

  • Page 90: Interface Circuitry

    LK7 inserted and LK6 and LK8 omitted. Interface Circuitry For a block diagram of the interfaces circuitry, refer to Figure 3.12. Introduction For more on the connector pinouts, refer to “Connectors” on page Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 91 2.7V. In combination with D711, the input to 4 is therefore clamped to 3.3V nominally. The value of R757 is ITF AUX GPI made large to minimize the loading effect on the output pull-up resistors. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 92 Regulator Connector AUD TAP OUT AUD TAP IN AUX MIC AUD Frequency AGND RSSI Synthesizer Signal Types: digital Receiver analog asynchronous serial data AGND synchronous serial data clock Transmitter Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 93: Digital Board

    3.13. For a block diagram of the digital board of the TM8100 radios, refer to Figure 3.14. The digital board is not serviceable at level-2 and is not described in this manual. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 94 DSP JTAG EMU0 analog FPGA JTAG TDO DSP JTAG TDO DSP JTAG EMU1 JTAG FPGA TDI JTAG DSP TDI clock digital +3V3 AGND asynchronous serial data Factory Connector synchronous serial data Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 95 DSP JTAG EMU0 FPGA JTAG TDO DSP JTAG TDO DSP JTAG EMU1 JTAG FPGA TDI JTAG DSP TDI analog clock +3V3 digital AGND Factory Connector asynchronous serial data synchronous serial data TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...

  • Page 96: Control-Head Board With Graphical Display

    “Connectors” on page 38. For more information on the control-head options connector, please contact Tait Electronics Limited. When battery power (13.8V) is applied to the radio, a press of the OFF Key...
  • Page 97 MIC AUD IN AGND Microphone Pre-amplifier CH MIC AUD Concealed and Audio Microphone Microphone Switching MIC+ Leads Soldering MIC– Pads Control-Head Board SPK+ SPK+ Speaker Leads Speaker SPK– SPK– Connector Speaker TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...
  • Page 98 The PTT signal from the microphone connector is connected to the FPGA via a resistor (R25) and relayed to the radio as a digital command. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 99: Control-Head Board With 1-, 2- Or 3-Digit Display

    “Connectors” on page 38. For more information on the control-head options connector, please contact Tait Electronics Limited. The optional circuit board is installed when a dynamic microphone is used or a concealed microphone is fitted.
  • Page 100 CH SPI CLK CH SPI CLK Key Drivers Contact made +3V3 +3V3 when key Channel- pressed Selection Switch Pads AGND DGND Keys SPK+ SPK+ Speaker Leads Speaker SPK– SPK– Connector Speaker Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 101 The volume-control potentiometer is linear and passes the DC voltage signal Volume Control to the radio body. The signal is read by an ADC on the main VOL WIP DC board, and the volume is adjusted accordingly. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited November 2007...

  • Page 102: Rj45 Control Head

    Control-Head Board of RJ45 Control Head 1. The signal supplying the LED can be switched or unswitched. For more information refer to “Connector Power Supply Options” on page Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 103: Part B - Servicing The Radio

    9.11 VCXO and CODEC Circuitry ......244 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 104 14.12 PTT Faulty..........444 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 105 16 Spare Parts ......... . .455 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 106 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 107: General Information

    ■ special drivers and bits, see page 110 ■ a TM8100/TM8200 service kit, see page 111 ■ a spare control head (for diagnostic purposes) ■ TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 108 No password is required for the unsecured area of the website, which is accessible to the general public. To carry out level 1 or level 2 repairs, however, you need to log on to the secured area of the Tait Technical Support website, www.taitworld.com/technical. Technical Support supplies the necessary log-in information.
  • Page 109 117. Always download the correct PCB Information document from the Tait Technical Support website. If you cannot find the required document, please contact your nearest Tait CSO. It is good practice to print and store a copy of all relevant PCB Information.

  • Page 110: Tools, Equipment And Spares

    Separate instruments may be used in place of the RF communications test set. These are an RF signal generator, audio signal generator, audio analyser, RF power meter, and modulation meter. General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 111 PCB information TMAA20-01 Product support CD 406-00046-xx Programming CD Where xx represents the issue number of the manual. You can generally order only the latest issue of a manual. TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...

  • Page 112: Servicing Precautions

    For information about anti-static precautions and the dangers of electrostatic ESD Precautions discharge, refer to standards such as ANSI/ESD S20.20-1999 and BS EN 100015-4 1994 or go to the Electrostatic Discharge Association website www.esda.org/. General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 113 Tait recommends that you purchase an anti-static bench kit from a reputable manufacturer. The bench must have: a dissipative rubber bench top ■...
  • Page 114 406.0 to 406.1MHz are reserved worldwide for use as mari- time emergency frequencies or by distress beacons. Do not pro- gram transmitters to operate in any of these frequency bands. General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 115: Setting Up The Test Equipment

    This switch functions in the same way as the PTT switch on the microphone. Install the programming and calibration applications on the test PC. Product Support CD These applications are included on the product support CD supplied with the service kit. TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 116 (RJ45) AC input (BNC) radio power connector RF connector (mini UHF or auxiliary BNC) connector (DB15) TMAA23-02 cable (>25W radios) DC power supply TMAA20-03 cable (25W radios) banana plugs General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 117: Replacing Board Components

    IPN and PCB Information will not alert you to a minor change: only the technical notes will. It is good practice to print and store a copy of every technical note. TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 118 455. If the item can be ordered as a Component stand-alone part, order it from your nearest Tait CSO. If the item is available only as part of a spares kit, check with Tait regarding the availability of the kit. General Information TM8100/TM8200 Service Manual ©...

  • Page 119: Shielding Cans And Connectors

    LPF TOP DIRC TOP FE TOP PAF TOP VCO TOP (UHF only) IF TOP SYN TOP PAD TOP FCL TOP CDC TOP PL101 Factory Connector SK102 Internal-Options Connector Digital Board TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 120 However, technicians require training in the best techniques to employ in the absence of a can-removal tool. Such training is part of the accreditation process for service centres. General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 121: Smt Repair Techniques

    The inductors are part of the SMPS of the SYN TOP power-supply circuitry on the bottom-side of the board. Figure 4.5 on page 122 shows the locations of the components. TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 122 (VHF board. UHF board similar) Note that other components may be fitted for C548 (such as C5085 and C5086 for UHF radios) bottom side (UHF board. VHF board similar) General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 123: Computer-Controlled Test Mode (Cctm)

    If the character% is accepted, the character – is displayed in response, and the message Test Mode appears on the radio display. This implies that the radio has entered CCTM. If the attempt fails, repeat Steps 1 to 3. TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 124 (r1, r2, r3, r4, r5, t1, t2, t3 or t7) AUD TAP OUT and y the tap type (C=bypass out, D=split, E=splice) (the default is D when y is omitted) General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 125 205 – Erase persistent data None Effectively resets the calibration parameters to their default values TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 126 (any integer from 0 to 3000) 378 – Receiver output level Reads the signal power at the where x is the signal power output of the channel filter (the square of the amplitude) General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 127 (a value from 0 to 1100 mV) 326 – Transmitter power 326 x None Sets the power level of the where x specifies the level transmitter (0=off, 1=very low, 2=low, 3=medium, 4=high, 5=maximum) TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 128 (an integer from 0 to 255) 332 x (to set value) None where x is the DAC value of the required bias voltage (any integer from 0 to 255) General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 129 0 and reads the digital potentiometer 1017 – Audio amplifier gain 1017 x none sets the audio amplifier gain (4 levels) where x is the gain (0 to 3) TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 130 The supply voltage is less than the V1 threshold. The supply voltage is less than the V2 threshold and the radio has powered itself down. The radio will not respond to the reset command character ^ . General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 131: Defining Frequency Bands

    H5 = 400MHz to 470MHz H6 = 450MHz to 530MHz H7 = 450MHz to 520MHz 700/ K band K5 = 762 to 870MHz (Tx) 762 to 776MHz and 850 to 870MHz (Rx) TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...

  • Page 132: Visual And Audible Indications

    LED is on The radio is scanning a group of channels for activity LED flashes The radio has detected activity on a certain channel and scanning has halted on this channel General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 133 While powered up — System error has occurred and radio might be inoperable; tone LCD usually displays System Error (graphical display), E1 or E2 (2- or 3-digit display), or E (1-digit display). TM8100/TM8200 Service Manual General Information © Tait Electronics Limited November 2007...
  • Page 134 General Information TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 135: Disassembly And Reassembly

    Inspect all disassembled parts for damage and replace them, if necessary. Observe the torque settings indicated in the relevant figures. For information on spare parts, refer to “Spare Parts” on page 455. TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...

  • Page 136: Removing And Mounting The Control Head

    Plug the control-head loom onto the control-head connector. Mounting the Control Head Insert the bottom edge of the control head onto the two clips in the front of the radio body, then snap into place. Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 137: Disassembling The Radio Body

    Push the screwdriver under the cover towards the upper screw boss to release the cover from the upper screw boss. Remove the cover. Figure 5.2 Removing the cover upper screw boss insertion point lower screw boss cover TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...
  • Page 138 This will release the heat-transfer block from the chassis. With the >25W radio, the gap pad on the L-shaped ridge must be >25W replaced each time the main board is removed. Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 139 22lb·in (2.5N·m) cover chassis screw M4x16 (x4) auxiliary connector bung lid assembly screws M4x16 (x2) screw M3x10 (x5) RF connector seal main-board assembly gap pad (>25W radio only) TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...
  • Page 140 With the >25W radio, use a Torx T6 screwdriver to undo the two ■ >25W screws With the 25W radio, use a Torx T10 screwdriver to undo the two ■ screws Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 141 K30x8 PT screw (x2) gap pad (>25W radio only) auxiliary connector RF connector nut inner foam D-range seal RF connector lock washer heat-transfer block RF connector outer foam seal main board TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...
  • Page 142 3614z_01 17lb·in (1.9N·m) screw 4-40x3/15 (x2) foam seal for D-range connector protective rubber cap options board (example) D-range screwlock fastener 4-40 (x2) screw M3x10, self-tapping (x9) lid assembly Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 143: Reassembling The Radio Body

    Contact surfaces on the bottom side of the main board contact surface of L-shaped gap pad >25W contact surface tin-plated >25W of rectangular copper plate Audio-PA area gap pad TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...
  • Page 144 RF connector nut Re-tighten both the D-range screwlock fasteners and the RF connector nut to the torques indicated in steps and 8. Fit the power connector seal Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 145 (refer to Figure 5.3 on page 139) Place the main-board assembly in position in the chassis Loosely screw in the two screws through the heat-transfer block by hand. TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...
  • Page 146 Slide the cover over the radio body and snap holes in the side of the cover over the screw bosses. Inspect the control-head seal for damage, and replace if necessary. Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 147: Disassembling And Reassembling The Control Head

    LCD assembly optional circuit board speaker terminals connector for speaker connector for control-head loom 3470z_01 TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...
  • Page 148 LCD. Take care not to scratch the soft polarizer material on the top side of the LCD. The LCD seal is replaced whenever the LCD is replaced. Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 149 LCD assembly (including LCD seal) main keypad power keypad concealed microphone (optional) front panel assembly 1& knob for volume-control potentiometer 1& 3451z_02 TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...
  • Page 150 1 clip 2 optional circuit board clip 3 legs of the pads for leads of concealed connector for speaker clamp microphone control-head loom Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 151 3 x 8 PT screw (x3) control-head board elastomeric strip (x2) space frame speaker clamp speaker short light pipe long light pipe keypad concealed microphone (optional) front panel assembly knob for volume-control potentiometer TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...
  • Page 152 Figure 5.10 on page 150. 1. The speaker clamp and a new space frame were introduced in April 2007. Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 153 Components of the RJ45 control head Torx T10 5lb·in (0.6N·m) control-head board PCB bracket control-head loom with female-female adapter front panel 3 x 8 PT screw (x4) RJ45 bung (x2) TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited November 2007...
  • Page 154 Components of the blank control head 3/16 inch (5mm) 4lb·in (0.45N·m) 3829z_01 UNX 4-40 x 3/16-inch pan Pozi screw (x2) front panel cover seal foam seal lock-nut (pair) control-head loom with female-female adapter Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 155: Servicing Procedures

    Inspect the radio as follows: knob for volume-control potentiometer ■ microphone grommet ■ rubber seal for RF connector ■ bung for auxiliary connector ■ bung for aperture for external options connector. ■ TM8100/TM8200 Service Manual Servicing Procedures © Tait Electronics Limited November 2007...
  • Page 156 Disassemble the control head and repair all damage as described in “Disassembling and Reassembling the Control Head” on page 147. Then re-assemble the control head and re-attach it to the radio body. Servicing Procedures TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 157 If the main-board assembly was replaced or if the repair failed, re- assemble the radio as described in “Disassembly and Reassembly” on page 135. Conclude with the tasks of “Final Tasks” on page 163. TM8100/TM8200 Service Manual Servicing Procedures © Tait Electronics Limited November 2007...
  • Page 158 First cycling the power is essential if the radio is programmed to power up in transparent-data mode (both 1200 baud FFSK and Tait high-speed data) and if the selected data port is the microphone connector (control head with user interface) or programming connector (blank control head).
  • Page 159 Check that each keypress returns a different number. CCTM command 1009 1 turns keypad notification off. backlighting (if programmed): Any keypress should activate ■ backlighting. TM8100/TM8200 Service Manual Servicing Procedures © Tait Electronics Limited November 2007...
  • Page 160 Programming mode, Re-program the radio with a new programming database. If the problem persists, invalid radio ... update or reload the radio’s firmware, and re-program the radio’s calibration database. Servicing Procedures TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 161 After having eliminated the synthesizer, the transmitter circuitry, and the speaker as cause for the fault, repair the radio as described in “CODEC and Audio Fault Finding” on page 399. TM8100/TM8200 Service Manual Servicing Procedures © Tait Electronics Limited November 2007...
  • Page 162 “Final Tasks” on page 163. If the radio still fails to receive, reconnect the original speaker and go to Step Use CCTM command 804 to read the status of the volume potentiometer. Servicing Procedures TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 163: Final Tasks

    Refer to the online help of the calibration application. TM8100/TM8200 Service Manual Servicing Procedures © Tait Electronics Limited November 2007...
  • Page 164 If the radio had no software features enabled, go to Task 3. If the required file was supplied, go to Step Servicing Procedures TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 165 Level-1 service centres should return the faulty radio to the nearest ASC, and level-2 service centres should return the radio to the ISC. Supply details of the Customer, the fault and, if applicable, the attempted repair. TM8100/TM8200 Service Manual Servicing Procedures © Tait Electronics Limited November 2007...
  • Page 166 • 1kHz at 1.5kHz deviation (narrow-band) < 3% • 1kHz at 3.0kHz deviation (wide-band) < 3% CTCSS deviation: • Narrow-band 250 to 350Hz • Medium-band 500 to 560Hz • Wide-band 580 to 680Hz Servicing Procedures TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 167 Check operation of microphone. Check operation of hookswitch. Data communications Test 1200 baud data transmission (standard). Test Tait high-speed data transmission (if feature is enabled). Direct-connect GPS Check that GPS poll returns correct position (if feature is enabled). (global positioning system) Selcall Check that radio encodes Selcall.
  • Page 168 Servicing Procedures TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 169: Power Supply Fault Finding

    Carry out Task 4 Task External power at connector has failed: The external power required at ■ a particular connector is no longer present. Carry out Task TM8100/TM8200 Service Manual Power Supply Fault Finding © Tait Electronics Limited November 2007...
  • Page 170 If it does, go to Task 2. If it does not, the repair failed; replace the board and go to “Final Tasks” on page 163. Power Supply Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 171 Figure 7.1 Important components of the power-supply circuitry (bottom side), including 3.3V regulator IC602 C718 pin 7 pin 5 C603 C618 R199 D601 D604 Q709 TM8100/TM8200 Service Manual Power Supply Fault Finding © Tait Electronics Limited November 2007...
  • Page 172 If the voltage is correct, the digital board is faulty; replace the board and go to “Final Tasks” on page 163. If the voltage is not correct, go Step Power Supply Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 173 If the radio powers up, return to “Initial Tasks” on page 155. If the radio fails to power up, the repair failed; replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Power Supply Fault Finding © Tait Electronics Limited November 2007...
  • Page 174 “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Power Supply Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 175 2 line goes low Pin 5 of AUX GPI power sense auxiliary connector Internal-options Link out 7 line goes high Pin 15 of IOP GPIO power sense internal-options connector TM8100/TM8200 Service Manual Power Supply Fault Finding © Tait Electronics Limited November 2007...
  • Page 176 D601 (see Figure 7.1), via Q600 (see Figure 7.2), to pin 5 of the auxiliary connector SK101. Repair any fault and go to Step Power Supply Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 177 “Final Tasks” on page 163. If the fault could not be found or repairs failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Power Supply Fault Finding © Tait Electronics Limited November 2007...
  • Page 178 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Power Supply Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 179: Interface Fault Finding

    Figure 8.2 Figure 8.4 for the locations of the components. These figures show the three areas of the main board where the components of the interface circuitry are situated. TM8100/TM8200 Service Manual Interface Fault Finding © Tait Electronics Limited November 2007...
  • Page 180 Components of the interface circuitry (top side near the cans) CDC TOP IF TOP IF TOP CAN CDC TOP CAN Figure 8.3 Components of the interface circuitry (top side at the corner) Interface Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 181 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the fault could not be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Interface Fault Finding © Tait Electronics Limited November 2007...
  • Page 182 Figure 8.4 Components of the interface circuitry (bottom side) Interface Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 183 Configure the suspect line as an output, and then carry out the procedure given in Task Configure the suspect line as an input, and then carry out the procedure given in Task TM8100/TM8200 Service Manual Interface Fault Finding © Tait Electronics Limited November 2007...
  • Page 184 Interface Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 185: Frequency Synthesizer Fault Finding

    Set transmit-receive switch on (x=1) or off (x=0) via DIG SYN TR SW line 389 x Set synthesizer mode to slow (x=0) or fast (x=1) 393 1 x Write data x to FPGA TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...

  • Page 186: Initial Checks

    The product-code label on the radio body will identify the frequency band as described in “Product Codes” on page 17. A definition of frequency bands is given in “Defining Frequency Bands” on page 131. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 187 (failed sanity check), go to Step 6. In the case of the third message (calibration failed), go to Step 8 (UHF radios) or “Power Supplies” on page 189 (VHF radios). TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 188 If the lock status is 010, the synthesizer and second LO are both out of lock. First investigate the synthesizer, excluding the power supplies; go to “Loop Filter” on page 204. If necessary, investigate the receiver later. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 189: Power Supplies

    SUPPLY L506 SIGNAL TYPES ANALOG PINS 7 AND 15 PINS 7 AND 15 OF IC503 OF IC503 CLOCK DIGITAL LOOP AGND FILTER INTERFACE INVERTER CIRCUITRY CIRCUITRY SUMMER TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 190 Q508 Q512 SMPS output (C531 and R530 are on the bottom side Q508 of the PCB) Q5004 Measurement point on L506 UHF bands Q512 Q508 Q506 Q507 Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 191 Task 3 “Power Supply Fault Finding” on page 174. Remove the can and check the SMPS circuit based on Q500, FCL TOP Q502 and L502 (see Figure 9.3). TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 192 “Final Tasks” on page 163. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 193 Figure 9.3 Synthesizer circuitry under the FCL TOP can (top side) A4 band VCXO BOT can PAD TOP can (bottom side PCB) (top side PCB) TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 194 Figure 9.4 Synthesizer circuitry under the SYN BOT can (bottom side) Q511 IC505 Q505 IC504 Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 195 “Final Tasks” on page 163. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 196 Figure 9.5 Transmit-receive switch components — VHF bands (25W versions shown) Q5002 Q5003 A4 band Q5003 Q5002 SYN TOP Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 197 “Final Tasks” on page 163. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...

  • Page 198: Phase-Locked Loop

    “Final Tasks” on page 163. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 199 Figure 9.6 Test and measurement points for the synthesizer PLL and loop filter TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 200 Determine if the fault has been removed. If it has, go to “Final Tasks” on page 163. If it has not, the FCL is suspect; go to “Power Supply for FCL” on page 234. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 201 “Final Tasks” on page 163. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 202 Repair the fault. Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 203 VHF bands Q512 Junction of C541 and R547 TP503 UHF bands Q512 Junction of C541 and R547 TP503 K5 band Junction of C541 and R547 Q512 TP503 TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...

  • Page 204: Loop Filter

    The voltage should change to: C565: < 0.5V DC If the loop voltage is correct, go to Task 12. If it is not, the loop-filter circuitry is suspect; go to Task Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 205 “Final Tasks” on page 163. If it is not, or if no fault could be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 206 “Final Tasks” on page 163. If it is not, or if no fault could be found, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 207 “Final Tasks” on page 163. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 208 “Final Tasks” on page 163. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 209: Receive Vco And Related Circuitry (Uhf Radios)

    441 ± 5 H6/H7 378 ± 5 498 ± 5 768 ± 5 834 ± 5 Figure 9.9 Measurement points for the VCO in UHF radios—K5 band TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 210 Figure 9.10 Measurement points for the VCO and related circuitry in UHF radios (except K5 band) Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 211 If the receive frequency measured in Step 4 is correct, go to Task If it is incorrect, go to Task 19. If no frequency is detected, go to Task TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 212 UHF band shown, VHF similar Q507 Q506 Tx port Q508 Junction of C541 and R547 Rx port K5 band Tx port Junction of C541 and R547 Rx port Q508 Q506 Q507 Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 213 163. If they are still not correct, go to Step Resolder R542 in position (see Figure 9.11). Replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 214 Figure 9.12 Synthesizer circuitry under the (bottom side) VCO BOT UHF band shown, VHF similar Q5001 K5 band Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 215 If the voltages measured in Step 3 Step 5 are correct, go to Task 22. If they are not, the switching network is suspect; go to Task TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 216 “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 217 “Final Tasks” on page 163. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...

  • Page 218: Transmit Vco And Related Circuitry (Uhf And 800Mhz Radios)

    Minimum Maximum 322 ± 5 421 ± 5 371 ± 5 492 ± 5 H6/H7 419 ± 5 545 ± 5 695 ± 5 890 ± 5 Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 219 If the transmit frequency measured in Step 4 is correct, go to Task If it is incorrect, go to Task 25. If no frequency is detected, go to Task TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 220 163. If they are still not correct, go to Step Resolder R542 in position (see Figure 9.11). Replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 221 If the voltages measured in Step 2 Step 4 are correct, go to Task 27. If they are not, the switching network is suspect; go to Task TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 222 CCTM command 335 1 to set the transmit-receive switch on. Measure the voltage at pin 4 of IC506. pin 4 of IC506: 5 ± 0.1 V DC (transmit mode) Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 223 “Final Tasks” on page 163. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...

  • Page 224: Vco And Related Circuitry (Vhf Radios)

    84 ± 5 200 ± 5 B1 50 W 95 ± 5 190 ± 5 137 ± 5 247 ± 5 167 ± 5 287 ± 5 Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 225 Figure 9.13 Measurement points for the VCO and related circuitry in VHF radios TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 226 If the minimum frequency measured in Step 5 is correct, go to Task 29. If it is incorrect, go to Task 30. If no frequency is detected, go to Task Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 227 Figure 9.14 Synthesizer circuitry under the can (VHF radios, top side) SYN TOP Tx port Junction of C541 and R547 Rx port TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 228 Confirm that the fault in the radio has been removed. If it has, go to “Final Tasks” on page 163. If it has not, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 229 Figure 9.15 Synthesizer circuitry under the can (VHF radios) VCO BOT L510 Q5001 Q5000 D5004 Q5002 Q5003 A4 band Q5003 Q5001 Q5000 D5004 Q5002 L5010 SYN TOP TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 230 163. If they are still not correct, go to Step Resolder R542 in position (see Figure 9.14). Replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 231 If the voltages measured in Step 9 Step 11 are correct, go to Task 33. If they are not, the switching network is suspect; go to Task TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 232 “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 233 “Final Tasks” on page 163. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...

  • Page 234: Power Supply For Fcl

    The remaining three stages are covered in “VCXO and TCXO Outputs” “VCXO and CODEC Circuitry” respectively. The test and measurement points for diagnosing faults in the FCL are summarized in Figure 9.16. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 235 Figure 9.16 Test and measurement points the FCL circuitry TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 236 Task 3 “Power Supply Fault Finding” on page 174. Figure 9.17 TCXO circuitry under the CDC TOP can VIA FOR MEASURING 3 V DC SUPPLY IF TOP CAN Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 237: Vcxo And Tcxo Outputs

    9.19). Confirm the removal of the fault and go to Task 36. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 238 Via for measuring VCXO output A4 band Position R527 here for Tasks 38 R527 and 39 R520 IC506 R510 L501 IC509 Via for R5044 measuring VCXO output Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 239 240. If the repair failed, replace the board and go to “Final Tasks” on page 163. Figure 9.19 FCL circuitry under the VCXO BOT can CAN FOR SYN BOT CAN DIGITAL BOARD CDC BOT CAN TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...

  • Page 240: Signals At Tp501 And Tp502

    3.0 ± 0.2V A4 band: TCXO input at R520 (pin 4 of IC506): TCXO input: square wave with frequency of 10.4MHz and amplitude of 3.0 ± 0.2V Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 241 9.19). Confirm the removal of the fault, and go to Task 39. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 242 6. If the repair failed, resolder R527 in its original position as shown in Figure 9.18, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 243 If the signal is correct, the fault has been removed; go to “Final Tasks” on page 163. If the signal is not correct, the repair failed; replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...

  • Page 244: Vcxo And Codec Circuitry

    9.19). Confirm the removal of the fault and go to Step 4. If the repair failed, replace the board and go to “Final Tasks” on page 163. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 245 Replace all cans. Repeat Task 40 to confirm the removal of the fault. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited November 2007...
  • Page 246 Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 247: Receiver Fault Finding

    The product-code label on the radio body will identify the frequency band as described in “Product Codes” on page 17. A definition of frequency bands is given in “Defining Frequency Bands” on page 131. TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...

  • Page 248: Faulty Receiver Sensitivity

    “Excessive Loss of Sensitivity” on page 250 ■ (sensitivity is very low) x < 500 000, go to “Moderate or Slight Loss of Sensitivity” on ■ page 255 (sensitivity is low) Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 249 Figure 10.1 Receiver circuitry under the can (top side) IF TOP Q404 Measurement point IC400 Q404 Measurement point TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...

  • Page 250: Excessive Loss Of Sensitivity

    3. If it is not, the 3V RX switch (based on Q604 and Q605) in the PSU module is suspect; go to Task 3 “Power Supply Fault Finding” on page 174. Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 251 Figure 10.2 Receiver circuitry under the can (UHF shown) Figure 10.3 Receiver circuitry under the can (top side) (all bands except K5) FE TOP Q401 Measurement point TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...
  • Page 252 Recalibrate the receiver using the calibration application. Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, go to Task Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 253 Recalibrate the receiver using the calibration application. Confirm the removal of the fault, and go to “Final Tasks” on page 163. If the repair failed go to Task TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...
  • Page 254 Recalibrate the receiver using the calibration application. Confirm the removal of the fault, and go to “Final Tasks” on page 163. If the repair failed go to Task Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 255: Moderate Or Slight Loss Of Sensitivity

    163. If they are not, go to Step if the receiver output level x measured in Go to Task 8 Task 1 was less than 40 000; otherwise go to Task TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...
  • Page 256 Recalibrate the receiver using the calibration application. Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, go to Task Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 257 762 and 776MHz. : 2.9±0.1V If the checks in Step 2 Step 4 reveal no fault, go to Step If there is a fault, repair it and go to Step TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...
  • Page 258 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 259: Incorrect Rssi Readings

    Check if the RSSI fault has been removed. If it has, go to “Final Tasks” on page 163. If it has not, go to Task TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...
  • Page 260 AGC0 Not used 1925 ± 40 AGC1 2070 ± 50 AGC2 Receiver input power (dBm) Standard radio Trigger-base radio AGC0 –50 –44 AGC1 –60 –54 AGC2 –68 –62 Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 261 163. If it has not, go to Step In this case all the RSSI calibration settings are correct, but there is still an RSSI fault. Go to Task 1 and check the receiver sensitivity. TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...

  • Page 262: Faulty Radio Mute

    If the setting is “Noise Level”, implying that noise muting is selected, 15. If the setting is “Signal Strength”, implying that RSSI go to Task muting is selected, go to Task Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 263 Narrow (12.5 kHz) 8 1700 2000 1900 2300 Medium (20 kHz) 1400 2100 3700 4200 1000 1500 Wide (25 kHz) 3500 5600 5000 7300 1100 3100 2200 3700 TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...
  • Page 264 Tasks” on page 163. If it has not, go to Task 10 and check the RSSI calibration. Figure 10.5 TCXO circuitry under the can (top side) CDC TOP Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 265: High Receiver Distortion

    Task Check if the distortion fault has been removed. If it has, go to “Final Tasks” on page 163. If it has not, go to Task TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited November 2007...
  • Page 266 Repair any fault, confirm the removal of the fault, and go to “Final Tasks” on page 163. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 163. Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 267: Transmitter Fault Finding (>25W)

    The CCTM commands required in this section are listed in Table 11.1. CCTM Commands Full details of the commands are given in “Computer-Controlled Test Mode (CCTM)” on page 123. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 268 Some fault-diagnosis tasks require programming the radio with the lowest, centre or highest frequency in the radio’s frequency band. The relevant frequencies for the different bands are listed in Table 11.2. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 269 The screws are labelled Figure 5.3 on page 139. There is no need, however, to secure the lid of the radio body. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 270 Avoid RF burns. Do not touch the antenna or the RF signal path on the circuit board while the transmitter is operating. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 271: Power Supplies

    +13V8 BATT SIGNAL TYPES SWITCH ANALOG VHF/UHF only AGND INTERFACE L310 L306 CIRCUITRY TEST POINT TEST POINT OTHER FRE- TRANS- QUENCY DRIVER EXCITER MITTER SYNTHE- CIRCUITRY SIZER TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 272 “Final Tasks” on page 157. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 273 Figure 11.2 Point for measuring the power supply to the PAs and PA driver (VHF) TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 274 Figure 11.3 Point for measuring the power supply to the PAs and PA driver (UHF and K5 bands) Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 275 “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 276 278. If it is not, the 9V regulator IC601 and the associated switching circuitry Q603 are suspect; go to Task 3 “Power Supply Fault Finding” on page 174. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 277 Figure 11.4 Test points for checking the 9V supply, the forward and reverse RF power, and the inhibiting of the transmitter TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...

  • Page 278: Transmitter Rf Power

    Reverse power (319 command) 2600 to 3400 < 500 3100 to 3800 < 600 3200 to 3900 < 700 3300 to 4000 < 900 2000 to 2800 < 500 Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 279 Figure 11.5 Measurement and test points for diagnosing faults concerning the transmitter RF power TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 280 If the reverse power is momentarily too high, the directional coupler, PIN switch or LPF is suspect; go to Task 31. Otherwise go to Task Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 281 Low (> 0.5A) Task 31 — Check power at directional coupler None at RF connector (< 0.1W) None (< 0.5A) Task 7 — Check for inhibiting of transmitter TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 282 ■ 326 2 ■ 326 1 ■ The above measurements should confirm that the power remains unchanged at all settings. Carry out Task 12 and then Task Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 283 Repair any fault, confirm the removal of the fault, and go to “Final Tasks” on page 163. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 284 399. If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 163. If the repair failed, replace the board, and go to “Final Tasks” on page 163. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 285 PAF TOP can (VHF and UHF bands) DIRC TOP Q310 Q309 D301 TEMPERATURE SENSOR UHF shown, VHF similar MOUNTING POINT FOR TEST CAPACITOR H5, H7 BANDS TEST PAD TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 286 PA circuitry under the can and part of the directional coupler under the PAF TOP can (K5 band) DIRC TOP temperature sensor mounting point for test capacitor test pad Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 287 Task 33 — the PIN switch and LPF require checking. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 288 If the power and current are now correct at all three frequencies, the fault has been rectified; go to “Final Tasks” on page 163. If they are not, go to Task 26 “RF Signal Path” on page 316. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 289 16 ± 5W 17 ± 5W 21 ± 5W 25 ± 5W 32 ± 5W 40 ± 5W 17 ± 5W 18 ± 5W 28 ± 5W TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...

  • Page 290: Biasing Of Pa Driver And Pas

    Note the current reading on the DC power supply. This will be less than 500mA. With the radio still in transmit mode, check the biasing of the PAs and PA driver, beginning with Task Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 291 Figure 11.8 Measurement and test points for diagnosing faults in the biasing of the PAs and PA driver TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 292 Table 11.6 Gate biases for the PAs and PA driver at high power Offset currents in mA Frequency band First PA Second PA PA driver 1690 1690 1800 1800 1800 1800 1800 1800 2000 2000 Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 293 DRV TEST POINT R333 R336 IC303 REV PWR TEST POINT FIN2 TEST POINT FIN1 TEST POINT FWD PWR TEST POINT B1 BAND PWR TEST POINT IF TOP CAN TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 294 FIN1 TEST POINT IC303 FIN2 TEST POINT REV PWR TEST POINT DRV TEST POINT FWD PWR TEST POINT H5, H7 BANDS PWR TEST POINT IF TOP CAN Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 295 “Final Tasks” on page 163. If the repair failed or Q310 itself is faulty, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 296 IC301 AND PAs H5, H7 BANDS VIA TO PIN 14 OF IC301 VIA TO GATE OF Q309 VIA TO PIN 8 OF IC301 VIA TO GATE OF Q310 Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 297 IC301 and PAs via to gate of Q309 via to pin 14 of IC301 via to gate of Q310 via to pin 8 of IC301 TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 298 “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 299 17. If neither the current nor the voltage is correct, go to Task Enter the CCTM command 332 1 to switch off final bias 2, and go to Task TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 300 “Final Tasks” on page 163. If the repair failed or Q309 itself is faulty, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 301 “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 302 20. If it does not, go to Step Enter the CCTM command 32 to place the radio in receive mode, and go to “CODEC and Audio Fault Finding” on page 399. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 303 If the voltage is correct, replace Q306; confirm the removal of the fault and go to “Final Tasks” on page 163. If it is not, go to Task TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 304 Figure 11.13 PA driver circuitry under the can (VHF) PAD TOP PAD TOP COMPONENTS C310, R324 AND R327 R327 C310 R324 Q306 GATE OF Q306 B1 BAND Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 305 Figure 11.14 PA driver circuitry under the can (UHF) PAD TOP TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 306 Figure 11.15 PA driver circuitry under the can (K5 band) PAD TOP components C310, R324 and R327 gate of Q306 Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 307 If the voltage at the test point increases as required, go to Task 22. If it does not, go to “CODEC and Audio Fault Finding” on page 399. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 308 Step Remove the can. Check D305 and R3035 (VHF) or R383 DIRC TOP (UHF and K5 band) (see Figure 11.16). If there is no fault, the PIN Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 309 “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Figure 11.16 Circuitry under the DIRC TOP TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 310 Figure 11.17 Components of concern on the bottom-side of the main board (VHF) COPPER PLATE VCO BOT CAN C319 R396 D311 B1 BAND NB BOT CAN D TX INH TEST POINT Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 311 Figure 11.18 Components of concern on the bottom-side of the main board (UHF) COPPER PLATE VCO BOT CAN R396 R340 H5, H7 BANDS TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 312 Figure 11.19 Components of concern on the bottom-side of the main board (K5 band) copper plate VCO BOT can Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 313 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 314 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 315: Rf Signal Path

    DRAIN OF Q306 AT C3509 AT C3505 TEST SET FRE- DIREC- QUENCY TIONAL SYNTHE- COUPLER SIZER RECEIVER SWITCH TEST CAPACITOR TEST LEAD TO TEST SET RF CON- NECTOR TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 316 Figure 11.22). If this component is not faulty, go “Frequency Synthesizer Fault Finding” on page 185. If this component is faulty, replace it and return to Step Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 317 OUTPUT OF STAGE 2 Q3505 OF EXCITER AT C3509 R3525 H5, H7 BANDS FCL TOP CAN OUTPUT OF STAGE 2 OF EXCITER AT C3505 SYNTHESIZER OUTPUT AT C3500 TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 318 (K5 band) PAD TOP output of PA driver output of stage 2 of exciter at C307 synthesizer output of stage 2 output at C300 of exciter at C313 Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 319 2.4 ± 0.2 2.7 ± 0.5 6.8 ± 0.5 7.3 ± 0.5 0.3 ± 0.1 1.1 ± 0.2 2.1 ± 0.5 4.8 ± 0.5 5.3 ± 0.5 TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 320 1.0 ± 0.2 1.9 ± 0.5 3.4 ± 0.5 4.8 ± 0.5 0.2 ± 0.1 1.2 ± 0.2 0.9 ± 0.5 2.4 ± 0.5 2.8 ± 0.5 Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 321 7.8 ± 0.5 0.2 ± 0.1 1.0 ± 0.2 1.9 ± 0.5 4.8 ± 0.5 0.2 ± 0.1 1.2 ± 0.2 0.9 ± 0.5 2.8 ± 0.5 TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 322 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 323 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 324 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 325 “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 326 Figure 11.23 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 (VHF) Q310 Q306 Q309 B1 BAND PAF TOP CAN PAD TOP CAN Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 327 Figure 11.24 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 (UHF) Q310 Q306 Q309 H5, H7 BANDS PAF TOP CAN PAD TOP CAN TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 328 Figure 11.25 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 (K5 band) PAF TOP can PAD TOP can Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 329 If the power in both the above cases is now correct, go to Step If it does not, go to Task Remove the test lead and test capacitor, resolder the coupling capacitors in position, and go to Task TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 330 Figure 11.26 Circuitry under the can, and the points for attaching the test lead and test DIRC TOP capacitor Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 331 If the power in both the above cases is now correct, the fault has been rectified; go to “Final Tasks” on page 163. If it is not, the repair failed; replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 332 If it does not, the circuitry of the PIN switch is suspect; go to Task Remove the test lead and test capacitor, resolder the blocking capacitors in position, and go to Task Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 333 Figure 11.27 Circuitry under the can, and points for attaching the test lead and test capacitor PIN TOP TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 334 If the power in both the above cases is now correct, the fault has been rectified; go to “Final Tasks” on page 163. If it is not, the repair failed; replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 335 Figure 11.28 Components of concern on the bottom-side of the main board (VHF) COPPER PLATE VCO BOT CAN B1 BAND NB BOT CAN TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 336 Figure 11.29 Components of concern on the bottom-side of the main board (UHF) COPPER PLATE VCO BOT CAN R3000 H5, H7 BANDS Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 337 Figure 11.30 Components of concern on the bottom-side of the main board (K5 band) copper plate VCO BOT can TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 338 Figure 11.31 Circuitry under the LPF TOP Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 339 If the power in both the above cases is now correct, the fault has been rectified; go to “Final Tasks” on page 163. If it does not, the repair failed; replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (>25W) © Tait Electronics Limited November 2007...
  • Page 340 Transmitter Fault Finding (>25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 341: Transmitter Fault Finding (25W)

    Set synthesizer on (x=1) or off (x=0) via DIG SYN EN line 335 x Set transmit-receive switch on (x=1) or off (x=0) via DIG SYN TR SW line TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 342 This applies to the A4, B1, C0, D1, H5 and H6 bands. For certain other bands the transmitter will not operate correctly unless all the cans are fitted. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 343 Avoid RF burns. Do not touch the antenna or the RF signal path on the circuit board while the transmitter is operating. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...

  • Page 344: Power Supplies

    TEST POINT SUPPLY +13V8 BATT SIGNAL TYPES SWITCH ANALOG AGND INTERFACE L310 L306 CIRCUITRY TEST POINT TEST POINT OTHER FRE- TRANS- QUENCY DRIVER EXCITER MITTER SYNTHE- CIRCUITRY SIZER Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 345 Enter the CCTM command 32 to place the radio in receive mode. If the power supply measured in Step 7 Step 8 is not correct, go Task 2. If it is, go to Task TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 346 Figure 12.2 Point for measuring the power supply to the PAs (UHF shown) MEASUREMENT POINT ON L310 H5/H6 BANDS SHOWN Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 347 POINT 1 ON R350 POINT 2 ON R350 R339 MEASUREMENT POINT ON R339 MEASUREMENT POINT ON L306 R327 C317 R324 C310 Q306 C389 PAD TOP D1 BAND TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 348 352. If it is not, the 9V regulator IC601 and the associated switching circuitry Q603 are suspect; go to Task 3 “Power Supply Fault Finding” on page 174. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 349 D TX INH TEST POINT REV PWR TEST POINT TX INH TEST POINT FWD PWR TEST POINT IF TOP CAN 9V0 TX TEST POINT GND TEST POINT TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...

  • Page 350: Transmitter Rf Power

    Reverse power (319 command) 2700 to 3900 <700 1100 to 2000 <500 1100 to 2000 <500 1600 to 2500 <700 2500 to 3500 <1000 2800 to 3900 <1000 Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 351 Figure 12.5 Measurement and test points for diagnosing faults concerning the transmitter RF power TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 352 If the reverse power is momentarily too high, the directional coupler, PIN switch or LPF is suspect; go to Task 29. Otherwise go to Task Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 353 Low (> 0.5A) Task 29 — Check power at directional coupler None at RF connector (< 0.1W) None (< 0.5A) Task 7 — Check for inhibiting of transmitter TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 354 The normal lock status is 110. If it is not, proceed to the relevant section. If it is, go to Step Check for short circuits on the line from the test DIG TX INH D TX INH point. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 355 399. If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 356 PAF TOP can (VHF shown) D1 BAND PAF TOP Q310 Q309 D301 DIRC MOUNTING POINT FOR TEST CAPACITOR TEMPERATURE SENSOR SOLDER OUTER TEST PAD SHEATH TO GND Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 357 Task 31 — the PIN switch and LPF require checking. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 358 If the power and current are now correct at all three frequencies, the fault has been rectified; go to “Final Tasks” on page 163. If they are not, go to Task 25 “RF Signal Path” on page 380. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 359 33 ± 5 W 28 ± 5 W 29 ± 5 W 5 ± 5W 12 ± 5W 27 ± 5W 13 ± 5W 19 ± 5W 28 ± 5W TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...

  • Page 360: Biasing Of Pa Driver And Pas

    Note the current reading on the DC power supply. This will be less than 500mA. With the radio still in transmit mode, check the biasing of the PAs and PA driver, beginning with Task Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 361 Figure 12.7 Measurement and test points for diagnosing faults in the biasing of the PAs and PA driver TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 362 Table 12.6 Gate biases for the PAs and PA driver at high power Offset currents in mA Frequency band First PA Second PA PA driver 1000 1000 1000 1000 Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 363 VCO TOP CAN (UHF ONLY) DIRC TOP CAN SET PWR TEST POINT DRV TEST POINT FWD PWR TEST POINT IF TOP CAN PWR TEST POINT FIN1 TEST POINT FIN2 TEST POINT TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 364 CIRCUITRY BETWEEN IC301 AND PAs D301 VIA TO PIN 14 OF 1C301 VIA TO GATE OF Q309 VIA TO PIN 8 OF IC301 VIA TO GATE OF Q310 Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 365 “Final Tasks” on page 163. If the repair failed or Q310 itself is faulty, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 366 12.8). If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 367 17. If neither the current nor the voltage is correct, go to Task Enter the CCTM command 332 1 to switch off final bias 2, and go to Task TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 368 “Final Tasks” on page 163. If the repair failed or Q309 itself is faulty, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 369 12.8). If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 370 20. If it does not, go to Step Enter the CCTM command 32 to place the radio in receive mode, and go to “CODEC and Audio Fault Finding” on page 399. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 371 If the voltage is correct, replace Q306; confirm the removal of the fault and go to “Final Tasks” on page 163. If it is not, go to Task TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 372 Figure 12.10 PA driver circuitry under the can (VHF shown) PAD TOP COMPONENTS C310, R324, R327 R327 C317 R324 C310 C389 Q306 GATE OF Q306 PAD TOP Q303 C300 D1 BAND Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 373 If the voltage at the test point increases as required, go to Task 22. If it does not, go to “CODEC and Audio Fault Finding” on page 399. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 374 Figure 12.11 Circuitry under the can (UHF shown) DIRC TOP Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 375 3.7 ± 0.5 4.0 ± 0.5 3.9 ± 0.5 3.9 ± 0.5 3.8 ± 0.5 4.2 ± 0.5 4.1 ± 0.5 4.7 ± 0.5 4.6 ± 0.5 TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 376 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 377 Figure 12.12 Components of concern on the bottom-side of the board (VHF shown) COPPER PLATE VCO BOT CAN R3009 R396 R340 C345 R3000 TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 378 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 379: Rf Signal Path

    LEAD TO DRAIN OF Q306 AT C313 TEST SET FRE- DIREC- QUENCY TIONAL SYNTHE- COUPLER SIZER RECEIVER SWITCH TEST CAPACITOR TEST LEAD TO TEST SET RF CON- NECTOR TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 380 Check C300 (see Figure 12.14). If C300 is not faulty, go to “Frequency Synthesizer Fault Finding” on page 185. If C300 is faulty, replace it and return to Step Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 381 Figure 12.14 PA driver circuitry under the can (UHF shown) PAD TOP Driver output Exciter output at C301 Synthesizer output at C300 Buffer output at C313 TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 382 7.1 ± 0.5 0.3 ± 0.1 0.8 ± 0.1 2.3 ± 0.5 7.0 ± 0.5 0.8 ± 0.1 0.5 ± 0.1 2.8 ± 0.5 6.1 ± 0.5 Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 383 6.7 ± 0.1 199.5 0.5 ± 0.1 0.9 ± 0.1 2.9 ± 0.5 8.1 ± 0.1 0.8 ± 0.1 0.4 ± 0.1 2.8 ± 0.5 7.5 ± 0.1 TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 384 8.6 ± 0.5 0.2 ± 0.1 0.3 ± 0.1 3.6 ± 0.5 8.2 ± 0.5 0.2 ± 0.1 0.3 ± 0.1 3.2 ± 0.5 2.5 ± 0.5 Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 385 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 386 “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 387 Figure 12.15 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 (UHF shown) PAF TOP can PAD TOP can TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 388 If the power measured in both the above cases exceeds 35W, go to Step 14. If it does not, go to Task Remove the test lead and test capacitor, resolder the coupling capacitors in position, and go to Task Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 389 Figure 12.16 Circuitry under the can, and the points for attaching the DIRC TOP test lead and test capacitor (UHF shown) MOUNTING POINT FOR TEST CAPACITOR SOLDER OUTER SHEATH TO GND TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 390 If the power in both the above cases is now correct, the fault has been rectified; go to “Final Tasks” on page 163. If it is not, the repair failed; replace the board and go to “Final Tasks” on page 163. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 391 PIN switch is suspect; go to Task Remove the test lead and test capacitor, resolder the blocking capacitors in position, and go to Task TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 392 Figure 12.17 Circuitry under the can, and points for attaching the test lead and test capacitor PIN TOP (UHF shown) SOLDER OUTER SHEATH TO GND MOUNTING POINT FOR TEST CAPACITOR Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 393 If the power in both the above cases is now correct, the fault has been rectified; go to “Final Tasks” on page 163. If it is not, the repair failed: replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 394 Figure 12.18 Components of concern on the bottom-side of the board (C0, D1 bands) COPPER PLATE VCO BOT CAN R3009 R396 R340 C345 R3000 Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 395 Figure 12.19 Components of concern on the bottom-side of the board (A4, B1, H5/H6 bands) COPPER PLATE VCO BOT CAN NB BOT CAN B1 BAND COPPER PLATE VCO BOT CAN A4 BAND H5, H6 BANDS TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 396 Figure 12.20 Circuitry under the can (top side) LPF TOP Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 397 If the power in both the above cases exceeds 35 W, the fault has been rectified; go to “Final Tasks” on page 163. If it does not, the repair failed; replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited November 2007...
  • Page 398 Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 399: Codec And Audio Fault Finding

    324 x y Output audio signal at tap point x of tap type y to AUD TAP OUT 400 x Select channel with channel number x TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...

  • Page 400: Power Supplies

    3. If it is not, go to Step The 3V regulator IC603 is suspect (see Figure 13.1). Check the regulator as described in Task 3 “Power Supply Fault Finding” on page 174. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 401 (distorted or no transmit modulation) ■ “Faulty Modulation Using Auxiliary Connector” (modulation at ■ auxiliary connector only) Further details are given in the introduction to the section. TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...

  • Page 402: Faulty Speaker Audio

    The next section deals with the case where there is no speaker audio at the auxiliary connector. Figure 13.2 Circuitry in the vicinity of IC202 (top side) CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 403 5. If they are not, check the programming and test set-up; otherwise the digital board is faulty; replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...
  • Page 404 “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 405 Figure 13.3 Circuitry under the can, and adjacent interface circuitry CDC TOP TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...
  • Page 406 “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 407 Figure 13.4 Circuitry under the CDC BOT CDC AUD TAP OUT JUNCTION OF R218 AND IC204 LO2 BOT CAN CAN FOR DIGITAL BOARD TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...
  • Page 408 “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 409: No Speaker Audio At Auxiliary Connector

    These tasks need to be followed by those of “Faulty Modulation Using Auxiliary Connector” on page 420 if there is also a fault with the transmit modulation using the auxiliary connector. TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...
  • Page 410 Task 15 “Faulty Modulation Using Auxiliary Connector” on page 420. If there is no other fault, go to “Final Tasks” on page 163. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 411 Figure 13.6 Circuitry in the vicinity of the auxiliary connector (bottom side) AUXILIARY CONNECTOR SK101 TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...
  • Page 412 “Faulty Modulation Using Auxiliary Connector” on page 420. If there is no other fault, go to “Final Tasks” on page 163. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 413 Figure 13.7 Circuitry under the CDC BOT CAN FOR DIGITAL BOARD LO2 BOT CAN JUNCTION OF R224 AND IC204 TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...

  • Page 414: Faulty Receiver

    “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 415 “Receiver Fault Finding” on page 247. Either the digital board or CODEC 1 (IC204) is faulty; replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...

  • Page 416: Faulty Modulation

    If the above voltage is correct, go to Task 14; the bias network is suspect. If it is not, go to Task 13; the 2.3V supply is suspect. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 417 Figure 13.9 Circuitry in under the CDC BOT LO2 BOT CAN CAN FOR DIGITAL BOARD TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...
  • Page 418 “Final Tasks” on page 163. If the repair failed or the fault could not be found, replace the board and go to “Final Tasks” on page 163. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 419 Figure 13.10 Circuitry under the CDC TOP JUNCTION OF R229 AND R232 ITF AUD TAP IN JUNCTION OF R237 AND R241 TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...

  • Page 420: Faulty Modulation Using Auxiliary Connector

    Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 421 Confirm the removal of the fault and go to “Final Tasks” on page 163. If the repair failed, replace the board and go to “Final Tasks” on page 163. TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited November 2007...
  • Page 422 CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 423: Fault Finding Of Control Head With Graphical Display

    If the repair fails or no fault could be found, replace the control-head ■ board. After completing the repair, carry out the tasks in “Initial Tasks” on ■ page 155. TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 424: Cctm Commands

    FF (255) setting 1011 – Microphone 1011 0 = microphone connector none selects the microphone input source 1011 2 = covert microphone Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 425 1017 – Audio amplifier gain 1017 x none sets the audio amplifier gain (4 levels) where x is the gain (0 to 3) TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 426: Power Supply Faulty

    13.8V supply shortly after power is supplied. In this case, the control head must be supplied directly through pin 2 of con- nector J103. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 427 If pin 4 measures 3.3V and pin 7 is high, replace U203. Figure 14.2 PCB layout of the power supply circuitry Junction of C210 and E202 top side TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 428: Lcd Display Faulty

    Disconnect the LCD loom, visually inspect and clean the contacts, and reconnect the LCD loom. Visually inspect connector J102 for open or shorted contacts. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 429 FPGA and the LCD connector. If necessary, replace the corresponding 100Ω resistor(s) R4 to R8. Figure 14.4 PCB layout of the LCD circuitry top side TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 430: Lcd Backlighting Faulty

    Check the signal at pin 8 of connector J102. J102 pin 8: 3.3V (with backlighting switched on) If the signal is correct, replace the LCD. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 431: Lcd Heating Faulty

    Check the signal at pins 10 and 12 of connector J102. J102 pins 10 and 12: 3.3V (with heating switched on) If the signal is not correct, replace the LCD. TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 432: Function Key Leds Or Status Leds Faulty

    Send CCTM command 1001 0 1 to activate the LED of the key. Send CCTM command 1002 3 to set the LED intensity level to high. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 433 Figure 14.6 PCB layout of the function key LED and status LED circuitry top side top side bottom side bottom side bottom side TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 434: Keypad Backlighting Faulty

    All LEDs Faulty or Intensity Faulty Send CCTM command 1003 x (where x is the intensity: 0=off, 1=low, 2=medium, 3=high) to switch on keypad backlighting. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 435 R607: 3.3kΩ R611: 2.2kΩ R613: 1kΩ Figure 14.8 PCB layout of the keypad backlighting circuitry top side top side top side bottom side TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 436: On/Off Key Faulty

    Verify continuity between R610 and switch S610, and continuity between switch S610 and ground. If the continuity cannot be restored, replace the control-head board. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 437 Figure 14.10 PCB layout of the power on/off key circuitry top side bottom side TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 438: Function, Scroll, Or Selection Keys Faulty

    Use isopropyl alcohol and a soft lens-cleaning cloth to clean the pad of the PCB switch contacts. Visually inspect both PCB switch contacts (A and B) of a key for short-circuits. Repair if necessary. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 439 F2 key right selection key left selection key Figure 14.12 PCB layout of the function, scroll, and selection key circuitry top side bottom side TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 440: 14.10 Speaker Faulty

    SPK+ SPK– Inspect E105 and E106. Replace the speaker. If there is still a fault, go to “Volume Control Faulty” on page 442. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 441 Figure 14.14 PCB layout of the speaker circuitry top side bottom side TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 442: 14.11 Volume Control Faulty

    If the signal is not correct, remove can E100 and replace the analog/digital converter U601. If the signal is correct, replace the speaker. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 443 Figure 14.16 PCB layout of the volume control circuitry top side bottom side TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...

  • Page 444: 14.12 Ptt Faulty

    If the signal is incorrect, inspect D106 and C108 for short-circuits. Repair if necessary. Verify continuity between R25 and the FPGA. Repair PCB track if possible. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 445 Figure 14.18 PCB layout of PTT circuitry top side bottom side TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited November 2007...
  • Page 446 Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 447: Fault Finding Of Control Head With 1-, 2- Or 3-Digit Display

    If the repair fails or no fault could be found, replace the control-head ■ board. After completing the repair, carry out the tasks in “Initial Tasks” on ■ page 155. TM8100/TM8200 Service Manual Fault Finding of Control Head with 1-, 2- or 3-Digit Display © Tait Electronics Limited November 2007...
  • Page 448 Figure 15.1 Top side of the control-head board (2-digit control head shown) Fault Finding of Control Head with 1-, 2- or 3-Digit Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 449 Figure 15.2 Bottom side of the control-head board (2-digit control head shown) TM8100/TM8200 Service Manual Fault Finding of Control Head with 1-, 2- or 3-Digit Display © Tait Electronics Limited November 2007...

  • Page 450: Display Faulty But Not Leds

    The control-head board is suspect. Level-1 service centres should replace the board. Level-2 service centres should attempt to repair the board as follows. Fault Finding of Control Head with 1-, 2- or 3-Digit Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 451: Some Leds Faulty

    “Initial Tasks” on page 155. If it has not, replace the control-head board and return to “Initial Tasks” on page 155. TM8100/TM8200 Service Manual Fault Finding of Control Head with 1-, 2- or 3-Digit Display © Tait Electronics Limited November 2007...

  • Page 452: All Leds Faulty

    “Initial Tasks” on page 155. If it has not, replace the control-head board and return to “Initial Tasks” on page 155. Fault Finding of Control Head with 1-, 2- or 3-Digit Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 453: Some But Not All Keys Faulty

    Tasks” on page 155. If it has not, replace the control-head board and return to “Initial Tasks” on page 155. TM8100/TM8200 Service Manual Fault Finding of Control Head with 1-, 2- or 3-Digit Display © Tait Electronics Limited November 2007...

  • Page 454: Speaker Faulty

    Re-assemble the control-head board. Reconnect the control-head loom. Confirm the removal of the fault, and return to “Initial Tasks” on page 155. Fault Finding of Control Head with 1-, 2- or 3-Digit Display TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 455: Spare Parts

    1-, 2- or 3-digit display (Figure 16.4, Table 16.3 ■ Table 16.4) RJ45 control head (Figure 16.5 Table 16.5). ■ Figure 16.1 Spare parts of the radio body (sheet 1 of 2) TM8100/TM8200 Service Manual Spare Parts © Tait Electronics Limited November 2007...
  • Page 456 Figure 16.2 Spare parts of the radio body (sheet 2 of 2) 1& 3641z_01 Spare Parts TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 457 The characters yy in an IPN or spares kit number stand for the abbreviated frequency band. For more information, refer to “Frequency Bands” on page The characters zz in an IPN or spares kit number stand for the type of RF connector (00=BNC, 01=mini-UHF). TM8100/TM8200 Service Manual Spare Parts © Tait Electronics Limited November 2007...
  • Page 458 Figure 16.3 Spare parts of the control head with graphical display 1& Spare Parts TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 459 The LCD seal IPN 362-01126-xx is part of the LCD assembly and must be replaced whenever the LCD is replaced. This seal is included in the TMAA22-95 kit TM8100/TM8200 Service Manual Spare Parts © Tait Electronics Limited November 2007...
  • Page 460 Figure 16.4 Spare parts of the control heads with 1, - 2- or 3-digit display Spare Parts TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 461 Neither spares kit includes the optional parts of the concealed microphone. b. Space frames without speaker clamp (before April 2007) should be replaced with space frame 319-30073-02 and speaker clamp 303-50111-xx. TM8100/TM8200 Service Manual Spare Parts © Tait Electronics Limited November 2007...
  • Page 462 Space frames without speaker clamp (before April 2007) with space frame 319-30073-02 and speaker clamp 303-50111-xx. Spare Parts TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 463 Qty. IPN Control-head board XMAC30 Control-head loom (with female/female adaptor) 219-02882-xx – female-female adaptor 210-00021-41 3 x 8 PT screw 346-10030-08 PCB bracket 302-10063-xx Front panel 316-06843-xx RJ45 bung 302-50002-xx TM8100/TM8200 Service Manual Spare Parts © Tait Electronics Limited November 2007...
  • Page 464 Spare Parts TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 465: Part C - Accessories

    21.4 PCB Information ........514 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 466 29.4 Interface Specification ........575 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 467 36.2 Installation ..........607 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 468 38.3 PCB Information ........617 TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 469: Tmaa01-01 Line-Interface Board

    17.2 Configuring the Line-Interface Board Important This equipment contains devices which are susceptible to damage from static charges. Refer to “ESD Precautions” on page 112 for more information. TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...
  • Page 470 RV3 time delay range W1 open 17.2.2 Test Equipment Setup The following diagram shows the setup of the test equipment used when adjusting RV1, RV2 and RV3. TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 471 None IOP_GPIO3 Output BUSY Busy Status High None None None IOP_GPIO4 Output FKEY F1 Key Status High None Latching None “Line-interface input and output connections”, on page 476 TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...
  • Page 472 Note If the W1 link is fitted, the maximum time delay available is reduced from 5 seconds to approximately 2.5 seconds. TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 473: Installing The Line-Interface Board

    347-00011-00 4-40x3/16 screws 354-01043-00 screw-lock fasteners 349-02062-00 M3x8 screws 240-00032-00 D-range plug — 240-06010-29 D-range hood — 1. Contact Technical Support for the exact Internal Part Number. TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...

  • Page 474: Installation Procedure

    PCB. Refit the radio lid and top cover to the radio and screw the external options cover seal over the external options connector, using the two 4-40x3/16 screws TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 475 M3x8 self-tapping screws external options connector cavity internal options loom line-interface board external options cover seal external options connector 4-40x3/16 screws TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...

  • Page 476: Programming Information

    For the associated LED to reflect the status of the line- interface board, the Function Key Action field on the Key Settings form must be set to Action Digital Output Line. TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 477: Interface Specification

    3V3 logic level, 5V tolerant not connected IOP_GPIO6 — not connected IOP_GPIO7 — DGND analogue ground AGND IOP_RXD asynchronous serial port - receive data IOP_TXD asynchronous serial port - transmit data TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...

  • Page 478: Line-Interface Board Application

    — RSSI LINE OUT- LINE OUT- AGND AGND AGND AGND AGND AGND DGND DGND DGND DGND internal external external internal options options options options connector connector connector connector TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 479: Line-Interface Board Specifications

    T4 *60% deviation at 1kHz Signal-to-Noise Ratio Narrow Bandwidth >40dB Wide Bandwidth >43dB Mute Ratio >60dB Distortion* Narrow Bandwidth <4% Wide Bandwidth <4% *30kHz bandwidth distortion meter TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...
  • Page 480 *60% deviation at 1kHz Signal-to-Noise Ratio* Narrow Bandwidth >40dB Wide Bandwidth >43dB *demodulated, filtered 300Hz to 3kHz and de-emphasised 750µs rms Mute Ratio >60dB Distortion* <3% *demodulated, filtered 15kHz low pass TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 481: Circuit Description

    3 and 4 of S1, while the sense of BUSY/GATE (pin 12 of SK1) can be selected using switches 5 and 6. Switch 7 accommodates either a two- line keying system or a single bi-directional keying line. TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...

  • Page 482: Power Supply

    5V regulator, which is filtered separately for either 5V digital or analogue devices. A simple voltage divider is used to provide a 2.5V half-rail for the digital and a 2.2V rail for the analogue sections. TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 483: Pcb Information

    RES 0603 1M 1% 1/10W 354-01043-00 Fsnr Scrw Lok 1pr 4-40 036-02100-03 RES Pwr 1218 10R 5% 1W 362-01108-01 Seal Drng Cvr 9way TMA 362-01111-00 Seal Drng 9way TMA TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...
  • Page 484 1:B11 1:K11 1:H11 1:B7 1:J11 1:J11 1:D3 1:J11 2:F3 1:H3 1:H11 1:F10 1:J3 1:D13 2:F2 1;A12 1:G13 1:E5 2:A3 1:E13 1:K3 2:E3 1:H5 2:C3 2:A5 2:A6 1:E4 2:A6 TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 485 17.9.3 Line-Interface Board Layout (top side) IPN 220-65202-04 TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...
  • Page 486 17.9.4 Line-Interface Board Layout (bottom side) IPN 220-65202-04 TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 487 17.9.5 Line-Interface Board Circuit Diagram TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited November 2007...
  • Page 488 TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 489: Tmaa01-02 Rs-232 Board

    For hardware flow control, these lines are set up in the programming application. RTS should be assigned to IOP_GPIO3 and CTS should be assigned to IOP_GPIO1. Refer to the online help of the programming application for more information. TM8100/TM8200 Service Manual TMAA01-02 RS-232 Board © Tait Electronics Limited November 2007...

  • Page 490: Installing The Rs-232 Board

    RS-232 board. With the top side of the RS-232 board facing the radio lid, guide the external options connector into the external options connector cavity. TMAA01-02 RS-232 Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 491 M3x8 self-tapping screws external options connector cavity internal options loom RS-232 board external options cover seal external options connector 4-40x3/16 screws TM8100/TM8200 Service Manual TMAA01-02 RS-232 Board © Tait Electronics Limited November 2007...

  • Page 492: Interface Specification

    — data ground input to the radio RTS using IOP_GPIO3 front view CTS using IOP_GPIO1 output from the radio TMAA01-02 RS-232 Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 493: Pcb Information

    Conn SMD 18w Skt M/Match 240-06009-20 Conn DIP D-Sub 9W Female TM8K 002-10740-40 IC 74AHCT04 SOIC14 Hex Inv 002-10078-00 IC SMD MC78M05CDT5v Reg0.5a 002-10022-22 IC SMD ST202E RS232/ESD SO16 TM8100/TM8200 Service Manual TMAA01-02 RS-232 Board © Tait Electronics Limited November 2007...
  • Page 494 18.4.2 RS-232 Board Layout (top side) IPN 220-01740-01 TMAA01-02 RS-232 Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 495 18.4.3 RS-232 Board Layout (bottom side) IPN 220-01740-01 TM8100/TM8200 Service Manual TMAA01-02 RS-232 Board © Tait Electronics Limited November 2007...
  • Page 496 18.4.4 RS-232 Board Circuit Diagram TMAA01-02 RS-232 Board TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 497: Tmaa01-05 And Tmaa01-07 Options Extender Boards

    In both cases, these lines replace other lines that are available when the linking resistors are in the factory-set configuration. Note that there is no external connection available for the RX_AUD line. TM8100/TM8200 Service Manual TMAA01-05 and TMAA01-07 Options Extender Boards © Tait Electronics Limited November 2007...
  • Page 498 Table 19.1 RX_BEEP_IN resistor changes RX_BEEP_IN Line Replaces Remove Resistor Add Resistor IOP_RSSI AUD_TAP_IN AUX_MIC_AUD AUD_TAP_OUT TMAA01-05 and TMAA01-07 Options Extender Boards TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 499: Installing The Options Extender Board

    Tighten the fasteners to a torque of 0.9N·m (8lbf·in). Important The external options connector screw-lock fasteners must be tightened correctly before screwing the options extender board onto the mounting posts TM8100/TM8200 Service Manual TMAA01-05 and TMAA01-07 Options Extender Boards © Tait Electronics Limited November 2007...
  • Page 500 M3x8 self-tapping screws external options connector cavity internal options loom options extender board external options cover seal external options connector 4-40x3/16 screws TMAA01-05 and TMAA01-07 Options Extender Boards TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 501: Interface Specification

    9-15 IOP_GPIO1 to IOP_GPIO7 DGND digital ground IOP_RXD an RS-232 compliant asynchronous serial port - receive data IOP_TXD an RS-232 compliant asynchronous serial port - transmit data TM8100/TM8200 Service Manual TMAA01-05 and TMAA01-07 Options Extender Boards © Tait Electronics Limited November 2007...
  • Page 502 2. This can be re-configured to be RX_BEEP_IN. Refer to “RX_BEEP_IN Line” on page 498. 3. 3V3 CMOS output via 1kΩ series resistance. 5V tolerant input. TMAA01-05 and TMAA01-07 Options Extender Boards TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 503: Pcb Information

    IC 74AHCT04 Hex inv SOIC14 057-10100-65 IND pwr 100uH CDRH6D38 .65A * fitted with TMAA01-07 only. 057-10010-20 IND 0603 BLM11-B102S 0.1A 057-10010-20 IND 0603 BLM11-B102S 0.1A TM8100/TM8200 Service Manual TMAA01-05 and TMAA01-07 Options Extender Boards © Tait Electronics Limited November 2007...
  • Page 504 1H13 1J13 1C13 1D13 1E13 1G13 1J13 1F13 SPARE1 SPARE2 1A10 SPARE3 1A10 SPARE4 1A11 SPARE5 1A12 SPARE6 SPARE7 SPARE8 1E5 1E4 1E5 1D4 1D5 1D4 TMAA01-05 and TMAA01-07 Options Extender Boards TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 505 19.4.3 Options Extender Board Layout (top side) 19.4.4 Options Extender Board Layout (bottom side) TM8100/TM8200 Service Manual TMAA01-05 and TMAA01-07 Options Extender Boards © Tait Electronics Limited November 2007...
  • Page 506 19.4.5 Options Extender Board Circuit Diagram TMAA01-05 and TMAA01-07 Options Extender Boards TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 507: Tmaa02-02 Dtmf Microphone

    Squeeze the grommet and push the remaining corners into position. Check that the grommet is seated correctly in the cavity. TM8100/TM8200 Service Manual TMAA02-02 DTMF Microphone © Tait Electronics Limited November 2007...

  • Page 508: Adjustment

    Table 20.1 DTMF microphone settings in the Programmable I/O form, Digital tab Direction Label Action Active Debounce Signal State Mirrored To CH_GPIO1 Input None Send Mic Audio High None None None To Spkr TMAA02-02 DTMF Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 509: Interface Specification

    PTT and hookswitch MIC_AUD white audio from the microphone AGND blue analogue ground — — not connected MIC_GPIO1 green mute out Figure 20.2 DTMF microphone to radio interface TM8100/TM8200 Service Manual TMAA02-02 DTMF Microphone © Tait Electronics Limited November 2007...

  • Page 510: Circuit Description

    MIC_AUD line (pin 5). For the duration of the tone, the tone generator activates the PTT, so that the user is not required to press the PTT key to transmit each tone. TMAA02-02 DTMF Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 511: Tmaa02-06 Support Kit For Concealed & Dynamic Microphones

    Dynamic Microphone Board Drill a 1mm diameter hole in the concealed-microphone cavity the position indicated by the small ‘dimple’ TM8100/TM8200 Service Manual TMAA02-06 Support Kit for Concealed and Dynamic Microphones 511 © Tait Electronics Limited November 2007...

  • Page 512: Radio Programming

    Emergency Mic: select Concealed if a concealed microphone is installed. ■ Refer to the online help of the programming application for more information. 512 TMAA02-06 Support Kit for Concealed and Dynamic Microphones TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 513: Interface Specification

    S3 top view MIC+ audio from the concealed microphone AGND analogue ground Figure 21.1 Concealed and dynamic microphone support kit to radio interface TM8100/TM8200 Service Manual TMAA02-06 Support Kit for Concealed and Dynamic Microphones 513 © Tait Electronics Limited November 2007...

  • Page 514: Pcb Information

    205-00010-13 CBL rbn 10core 0/7/0.1mm grey 220-01712-01 Pcb Dynamic/Covert Mic 252-00010-41 Mic Capsule Electret 2.7*6mm 369-01031-00 Rbbr Mic Upper A3M2751 T3K 402-00007-XX MANL I/INSTR TMAA02-06 514 TMAA02-06 Support Kit for Concealed and Dynamic Microphones TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 515 21.4.2 Concealed and Dynamic Microphone Support Board (top side) IPN 220-01712-01 TM8100/TM8200 Service Manual TMAA02-06 Support Kit for Concealed and Dynamic Microphones 515 © Tait Electronics Limited November 2007...
  • Page 516 21.4.3 Concealed and Dynamic Microphone Support Board (bottom side) IPN 220-01712-01 516 TMAA02-06 Support Kit for Concealed and Dynamic Microphones TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 517 21.4.4 Concealed and Dynamic Microphone Board Circuit Diagram TM8100/TM8200 Service Manual TMAA02-06 Support Kit for Concealed and Dynamic Microphones 517 © Tait Electronics Limited November 2007...
  • Page 518 518 TMAA02-06 Support Kit for Concealed and Dynamic Microphones TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 519: Tmaa02-07 Concealed Microphone

    Use the screwdriver to lift the control head off the chassis clip, then repeat in the other position. Unplug the control head loom from the radio body. TM8100/TM8200 Service Manual TMAA02-07 Concealed Microphone 519 © Tait Electronics Limited November 2007...

  • Page 520: Radio Programming

    UI Preferences form (Audio tab) of the programming application: Emergency Mic: select Concealed. ■ Refer to the online help of the programming application for more information. 520 TMAA02-07 Concealed Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 521: Tmaa02-08 Keypad Microphone

    ■ dust and other environmental hazards. Make sure the radio is turned off, then plug the keypad microphone cord into the microphone socket on the radio control head. TM8100/TM8200 Service Manual TMAA02-08 Keypad Microphone © Tait Electronics Limited November 2007...

  • Page 522: Radio Programming

    The radio must have the following firmware versions in order to use these Firmware Compatibility keypad microphone features: Channel control: firmware version 2.09 or later. ■ DTMF dialling: firmware version 2.10 or later. ■ TMAA02-08 Keypad Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 523 DTMF Dialling in the Dialling tab of the Call Options form ■ PABX Calls in the DTMF Call Dialling form ■ PSTN Calls in the Call Types tab of the Call Options form. ■ TM8100/TM8200 Service Manual TMAA02-08 Keypad Microphone © Tait Electronics Limited November 2007...

  • Page 524: Interface Specification

    — not connected 13.8V black power supply green transmit serial data white PTT and hookswitch blue audio from the microphone ground yellow receive serial data — not connected TMAA02-08 Keypad Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 525: Tmaa03-02 Security Bracket

    - for fixing security bracket in for attaching tall mounting rails to place (not pictured) TM8200 (not pictured) anti-vibration washers for self- tapping screws (not pictured) Note: are pre-assembled TM8100/TM8200 Service Manual TMAA03-02 Security Bracket © Tait Electronics Limited November 2007...

  • Page 526: Installing The Security Bracket And Radio

    20in.lbf [2.26N.m]). To insert the radio, with the mounting rails attached, into the security bracket base, check that the left and right slide locks are open. TMAA03-02 Security Bracket TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 527: Removing A Radio From The Security Bracket

    Remove the radio from the security bracket by following the steps in “Removing a Radio from the Security Bracket” on page 527. Unscrew the four self-tapping screws holding the security bracket base in place. TM8100/TM8200 Service Manual TMAA03-02 Security Bracket © Tait Electronics Limited November 2007...

  • Page 528: Re-Ordering Extra Parts

    319-60003-XX (tall mounting rails for TM8200) Scrw M4*30 T/T P/T ContiR 349-02068-XX (for attaching tall mounting rails to TM8200 radio) 1. Contact Technical Support for the exact IPN. TMAA03-02 Security Bracket TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 529: Installing A Remote Kit

    Torx T10 and T20 screwdrivers are required for most of the screws in this installation. The circled numbers in the following sections refer to the items in Figure 25.1 on page 530. TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited November 2007...
  • Page 530 Parts for remote control-head installation torso interface RJ45 bung control-head interface control-head interface loom remote U-bracket torso-interface loom remote cable earthing tag self-drilling screw earthing-tag screw thumb screw remote cable grommets Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 531 The inner RJ45 cavity is not used and has no connector installed so the RJ45-cavity bung must be installed at all times. This ensures that the torso interface is sealed against water, dust and other environmental hazards. TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited November 2007...
  • Page 532 Use the two screws from step (2) to fit the control-head interface to the control head through the two screw holes at the rear of the control-head interface. Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 533 Position the radio body in the U-bracket so that the holes in the U-bracket line up with the holes in the radio chassis. Screw the radio into position using the four thumb screws. TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited November 2007...
  • Page 534 Squeeze the grommet and push the remaining corners into position. Check that the grommet is seated correctly in the cavity. Figure 25.2 Correct remote cable grommet seating microphone grommet control head Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 535: Circuit Description

    The control heads contain circuit boards with RS-485 driver components and an audio amplifier or attenuator. Figure 25.3 Block diagram of remote control-head installation TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited November 2007...

  • Page 536: Servicing The Remote Kit Parts

    219-02882-00 3 x 8 PT screw (x4) 346-10030-XX PCB bracket 302-10063-XX front panel 316-06843-XX label 365-01751-XX RJ45 bung 302-50002-XX Contact Technical Support for the exact IPN. Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 537 Parts of the control-head interface Description 3 x 8 PT screw (x5) 346-10030-XX control-head interface PCB control-head interface 316-06842-XX control-head interface loom 219-02914-00 Contact Technical Support for the exact IPN. TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited November 2007...

  • Page 538: Pcb Information

    038-13100-10 Res 0603 100R 1/10w 1% R105 038-15100-10 Res 0603 10k 1/10w 1% R106 038-14220-00 Res 0603 2k2 1/10w 5% R107 038-15100-10 Res 0603 10k 1/10w 1% Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 539 D107 E101 E102 E103 E104 E105 E106 E107 E108 E109 F101 J100 J101 MT100 MT101 Q101 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited November 2007...
  • Page 540 Board Layout IPN 220-02122-02 Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 541 Circuit Diagram TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited November 2007...
  • Page 542 038-13100-10 Res 0603 100R 1/10w 1% 038-16100-10 Res 0603 100k 1/10w 1% Grid Reference List Ref. Circuit Ref. Circuit Ref. Circuit 1C4 1D4 1C5 1D5 1D6 1E6 Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 543 Board Layout IPN 220-02123-01 TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited November 2007...
  • Page 544 Circuit Diagram Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 545: Installing An Enhanced Remote Kit

    Torx T10 and T20 screwdrivers are required for most of the screws in this installation. The circled numbers in the following sections refer to the items in Figure 26.1 on page 546. TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited November 2007...
  • Page 546 RJ45 bung control-head interface control-head interface loom remote U-bracket torso-interface loom remote cable earthing tag self-drilling screw earthing-tag screw thumb screw remote cable grommets Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 547 If the remote cable is not installed in the RJ45 cavity, then the RJ45 bung must be installed. This ensures that the torso interface is sealed against water, dust and other environmental hazards. TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited November 2007...
  • Page 548 Remote U-Bracket socket facing downwards (U-bracket below control head, as in Figure 26.1). Orientation If the RJ45 socket is required to face upwards (control head hanging from Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 549 If precise positioning is required, predrill 3mm (1/8 inch) pilot holes for the self-drilling screws. Reduce the hole size in metal that is less than 1mm (1/32 inch) thick. TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited November 2007...
  • Page 550 Squeeze the grommet and push the remaining corners into position. Check that the grommet is seated correctly in the cavity. Figure 26.2 Correct remote cable grommet seating microphone grommet control head Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 551: Circuit Description

    Both control heads contain a circuit board with audio amplifiers and RS- 485 driver components. Figure 26.3 Block diagram of remote control-head installation TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited November 2007...

  • Page 552: Servicing The Remote Control-Head Installation Parts

    219-02882-XX 3 x 8 PT screw (x4) 346-10030-XX PCB bracket 302-10063-XX front panel 316-06843-XX label 365-01751-XX RJ45 bung 302-50002-XX Contact Technical Support for the exact IPN. Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 553 Parts of the control-head interface Description 3 x 8 PT screw (x7) 346-10030-XX control-head interface PCB control-head interface 316-06842-XX control-head interface loom 219-02914-XX Contact Technical Support for the exact IPN. TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited November 2007...

  • Page 554: Pcb Information

    038-15100-10 RES 0603 10k 1% 1/10W D731 001-10014-03 Diode SMD MBRS140T3 Sch R611 038-15100-10 RES 0603 10k 1% 1/10W R612 038-14470-10 Res 0603 4k7 1% 100ppm Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 555 U310 C721 R100 U400 C730 R110 C731 R200 C732 R201 U500 C733 R202 U600 C734 R203 U610 C735 R210 U700 R211 D100 R212 R213 D101 R320 TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited November 2007...
  • Page 556 Board Layout IPN 220-01721-04 Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 557 Circuit Diagram TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited November 2007...
  • Page 558 1:F2 2:L2 R917 1:N2 2:J2 1:H2 R918 2:M2 1:H2 2:L2 R920 1:D2 2:H2 1:D2 1:E2 1:K1 1:H2 2:L2 1:N2 1:N2 1:L2 2:H2 1:D2 1:M2 2:G2 1:F2 Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 559 Board Layout IPN 220-01720-05 TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited November 2007...
  • Page 560 Circuit Diagram Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 561: Tmaa03-31 Control Head Interface Box

    TMAA11-08 TM8250/TM8255 extended remote dual-head upgrade ■ kit, with a keypad microphone (installation instructions 402-00052-xx) TMAA11-09 TM8260 dual-head upgrade kit, with a keypad ■ microphone (installation instructions 402-00043-xx). TM8100/TM8200 Service Manual TMAA03-31 Control Head Interface Box © Tait Electronics Limited November 2007...

  • Page 562: Interface Specification

    RD_13V8_SW Switched 13V8 supply from radio RD_RS485+ Data AGND Analog ground MIC_AUD Microphone audio front view RD_RS485- Data DGND Digital ground RD_CHC_ON_OFF Radio control head on/off TMAA03-31 Control Head Interface Box TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 563: Pcb Information

    SPCR 15mm NYL M3 Fem Hex 5.5mm 002-10800-00 IC LF80C 8V@1A LDO rgltr 002-19120-00 IC TS912ID CMOS R2R OP-Amp 349-02062-00 SCRW M3x8 P/H T10 BZ T/T CRL TM8100/TM8200 Service Manual TMAA03-31 Control Head Interface Box © Tait Electronics Limited November 2007...
  • Page 564 27.2.2 Control Head Interface Box Board Layouts (top side) TMAA03-31 Control Head Interface Box TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 565 27.2.3 Control Head Interface Box Board Layouts (bottom side) TM8100/TM8200 Service Manual TMAA03-31 Control Head Interface Box © Tait Electronics Limited November 2007...
  • Page 566 27.2.4 Control Head Interface Box Circuit Diagram TMAA03-31 Control Head Interface Box TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 567: Tmaa03-34 Extender Box

    Receive audio RD_13V8_SW Switched 13V8 supply from radio RD_RS485+ Data AGND Analog ground MIC_AUD Microphone audio front view RD_RS485- Data DGND Digital ground RD_CHC_ON_OFF Radio control head on/off TM8100/TM8200 Service Manual TMAA03-34 Extender Box © Tait Electronics Limited November 2007...

  • Page 568: Pcb Information

    CAP 270p 50V NPO ±5% 0603 038-15470-10 RES 0603 47k 1% 1/10W 018-16100-00 CAP 100n 16V ±10% 0603 X7R 038-14100-10 RES 0603 1k0 1% 1/10W 038-15470-10 RES 0603 47k 1% 1/10W TMAA03-34 Extender Box TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 569 RES 0603 100k 1% 1/10W 038-16100-10 RES 0603 100k 1% 1/10W 038-16100-10 RES 0603 100k 1% 1/10W 038-16100-10 RES 0603 100k 1% 1/10W 038-16100-10 RES 0603 100k 1% 1/10W TM8100/TM8200 Service Manual TMAA03-34 Extender Box © Tait Electronics Limited November 2007...
  • Page 570 28.2.2 Extender Box Board Layouts (top side) TMAA03-34 Extender Box TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 571 28.2.3 Extender Box Board Layouts (bottom side) TM8100/TM8200 Service Manual TMAA03-34 Extender Box © Tait Electronics Limited November 2007...
  • Page 572 28.2.4 Extender Box Circuit Diagram TMAA03-34 Extender Box TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 573: Tmaa04-04 Crossband Linking Cable

    External PTT (1) tab of the PTT form. Table 29.1 Crossband settings in the PTT form, External PTT (1) tab Field Setting PTT Transmission Type Voice Advanced EPTT1 Audio Source Audio Tap In TM8100/TM8200 Service Manual TMAA04-04 Crossband Linking Cable © Tait Electronics Limited November 2007...
  • Page 574 Table 29.6 Transmit tail in the Basic Settings form, Subaudible Signalling tab Field Setting CTCSS Settings Lead-Out Delay any duration, up to 1000ms DCS Settings Lead-Out Delay any duration, up to 1000ms TMAA04-04 Crossband Linking Cable TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 575: Operational Testing

    Table 29.7 Auxiliary connectors—pins and signals Signal name Description AUX_GPIO5 busy (output) AUD_TAP_IN audio tap input AUX_GPI1 PTT (input) AUD_TAP_OUT audio tap output AGND analogue ground rear view TM8100/TM8200 Service Manual TMAA04-04 Crossband Linking Cable © Tait Electronics Limited November 2007...

  • Page 576: Pcb Information

    038-14120-10 RES 0603 1k2 1% 1/10W 038-14120-10 RES 0603 1k2 1% 1/10W 938-10001-01 SMT Alloy Lead Free (sac) 29.5.2 Crossband Linking Board Layouts IPN 220-02127-03 IPN 220-01755-01 TMAA04-04 Crossband Linking Cable TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 577 29.5.3 Crossband Linking Board Circuit Diagram TM8100/TM8200 Service Manual TMAA04-04 Crossband Linking Cable © Tait Electronics Limited November 2007...
  • Page 578 TMAA04-04 Crossband Linking Cable TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 579: Tmaa04-05 Ignition Sense Kit

    30.2 Installation Connect the auxiliary connector plug to the radio’s auxiliary connector. Connect the ignition sense cable to the 13.8V signal controlled by the vehicle’s ignition key. TM8100/TM8200 Service Manual TMAA04-05 Ignition Sense Kit © Tait Electronics Limited November 2007...

  • Page 580: Radio Programming

    Set AUX GPI3 line to ‘Power Sense (Ignition)’. ■ (Digital tab) Set Active to ‘High’. ■ Refer to the online help of the programming application for more information. TMAA04-05 Ignition Sense Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 581: Tmaa04-06 Linking And Interface Cable

    GPS socket are closest to the device or devices to connect to. Tightly fasten the jackscrew-type locks. TM8100/TM8200 Service Manual TMAA04-06 Linking and Interface Cable © Tait Electronics Limited November 2007...
  • Page 582 If a non-priority channel in the group is captured, the radio will re-transmit that activity and the transmit timer will begin counting down. However, each time the radio samples the priority channel or TMAA04-06 Linking and Interface Cable TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 583 ±3kHz (with a tolerance of ±200Hz) on a 25kHz wide ■ bandwidth channel. ±1.5kHz (with a tolerance of ±200Hz) on a 12.5kHz narrow ■ bandwidth channel. TM8100/TM8200 Service Manual TMAA04-06 Linking and Interface Cable © Tait Electronics Limited November 2007...

  • Page 584: Connecting To A Gps Device

    31.2.2 Radio Programming Program one or both radios with GPS settings as required. For detailed configuration and programming information contact your local Tait dealer. 31.3 Connecting to the Ignition Signal The cable’s external interface connector can be used to connect a TM8260 dual radio system to the vehicle’s ignition signal.

  • Page 585: Connecting To An External Alert Device

    Table 31.6 External alert settings in the Programmable I/O form, Digital tab Mode Direction Label Action Active Debounce AUX_GPIO6 Conventional Output EXT_ALRT External Alert 1 Low None TM8100/TM8200 Service Manual TMAA04-06 Linking and Interface Cable © Tait Electronics Limited November 2007...

  • Page 586: Interface Specification

    Table 31.9 External interface connector—pins and signals Signal name Description AUX_GPI3 ignition sense AUX_GPIO6 external alert (radio closest to connector) AUX_GPIO6 external alert (radio furthest from connector) ground rear view TMAA04-06 Linking and Interface Cable TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 587: Pcb Information

    SMT Alloy Lead Free (sac) 220-01755-01 PCB cross-bnd extnl-I/F cbl 220-01755-01 PCB cross-bnd extnl-I/F cbl 1. F2 is a spare fuse. 31.6.2 Linking and Interface Cable Board Layouts IPN 220-01755-01 TM8100/TM8200 Service Manual TMAA04-06 Linking and Interface Cable © Tait Electronics Limited November 2007...
  • Page 588 31.6.3 Linking and Interface Cable Circuit Diagram TMAA04-06 Linking and Interface Cable TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 589: Tmaa10-01 Desktop Microphone

    Plug the microphone cord into the microphone socket on the radio control head. Slide the grommet along the cord and push two adjacent corners of the grommet into the microphone socket cavity. TM8100/TM8200 Service Manual TMAA10-01 Desktop Microphone © Tait Electronics Limited November 2007...

  • Page 590: Adjustment

    — — not connected — — not connected MIC_PTT yellow MIC_AUD audio from the microphone AGND bare analogue ground — — not connected — — not connected TMAA10-01 Desktop Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 591: Circuit Description

    R5 is used to adjust the gain. PTT and hookswitch signals are combined onto one line and fed to the control head PTT input of the radio. TM8100/TM8200 Service Manual TMAA10-01 Desktop Microphone © Tait Electronics Limited November 2007...
  • Page 592 TMAA10-01 Desktop Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 593: Tmaa10-02 Handset

    ■ remaining wires. Secure the radio to handset cord in the handset PCB P-clip , as shown in the diagram. Connect the five wires to the handset PCB connector TM8100/TM8200 Service Manual TMAA10-02 Handset © Tait Electronics Limited November 2007...
  • Page 594 Slide the grommet along the cord and push two adjacent corners of the grommet into the microphone socket cavity. Squeeze the grommet and push the remaining corners into position. Check that the grommet is seated correctly in the cavity. TMAA10-02 Handset TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 595: Radio Programming

    Table 33.4 Handset settings in the Programmable I/O form, Digital tab Direction Label Action Active Debounce Signal State Mirrored To CH_GPIO1 Input None Force Audio PA Off High None None TM8100/TM8200 Service Manual TMAA10-02 Handset © Tait Electronics Limited November 2007...

  • Page 596: Interface Specification

    — — — not connected CH_GPIO1 3 blue programmable line controlling private mode Figure 33.2 Handset to radio interface TMAA10-02 Handset TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 597: Tmaa10-03 And Tmaa10-06 High-Power Remote Speakers

    Attach the speaker to the mounting bracket using the thumbscrews. Important Check that the speaker cable is protected from engine heat, sharp edges and from being pinched or crushed. TM8100/TM8200 Service Manual TMAA10-03 and TMAA10-06 High-Power Remote Speakers © Tait Electronics Limited November 2007...
  • Page 598 To connect the remote speaker, plug the flying lead into the housing socket. Connecting the Remote Speaker To disconnect the speaker, release the locking mechanism and unplug the flying lead. TMAA10-03 and TMAA10-06 High-Power Remote Speakers TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 599: Tmaa10-04 Remote Ptt Kit And Tmaa10-05 Hands-Free Kit

    Select Menu>Radio Settings> Changing to VOX by using the Main Function Settings>VOX. Menu TM8100/TM8200 Service Manual TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit © Tait Electronics Limited November 2007...

  • Page 600: Installation

    PTT cord into the remote PTT extension lead. A common position for the remote PTT is on the gear lever of the vehicle. TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 601: 35.3 Radio Programming For The Tmaa10-04 Remote Ptt Kit

    Debounce Signal State Mirrored To AUX_GPI1 Input None External PTT 1 Low None None AUX_GPIO4 None None No Action None None None None TM8100/TM8200 Service Manual TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit © Tait Electronics Limited November 2007...

  • Page 602: 35.4 Radio Programming For The Tmaa10-05 Hands-Free Kit

    AUX_GPIO4 reference voltage to pre-amplifier regulator AUX_GPI1 PTT signal from hands-free kit AUX_MIC_AUD microphone audio to the radio rear view AGND analogue ground TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 603: Circuit Description

    PCB to facilitate the connection of other devices or signals e.g ignition switch signal. TM8100/TM8200 Service Manual TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit © Tait Electronics Limited November 2007...

  • Page 604: Pcb Information

    240-06010-18 Conn 15w Hood/Cvr Drng MDJ15 252-00010-72 Mic Electret Unidir 2.5mm Plg 402-00006-01 F/Inst TMAA10-04/TMAA10-05 Eng TMAA10-04 Remote PTT only 236-00001-00 Sw Ptt W/Cbl & Strap TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...
  • Page 605 35.7.2 Pre-Amplifier Board Layout TM8100/TM8200 Service Manual TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit © Tait Electronics Limited November 2007...
  • Page 606 35.7.3 Pre-Amplifier Board Circuit Diagram TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 607: Tmaa10-07 Desktop Microphone

    ■ dust and other environmental hazards. Plug the microphone cord into the microphone socket on the radio control head. TM8100/TM8200 Service Manual TMAA10-07 Desktop Microphone © Tait Electronics Limited November 2007...

  • Page 608: Adjustment

    Table 36.1 Desktop microphone connector—pins and signals Signal Description — not connected — not connected — not connected MIC_PTT MIC_AUD audio from the microphone AGND analogue ground — not connected — not connected TMAA10-07 Desktop Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 609: Tmaa10-08 Desktop Microphone

    Plug the microphone cord into the microphone socket on the radio control head. Slide the grommet along the cord and push two adjacent corners of the grommet into the microphone socket cavity. TM8100/TM8200 Service Manual TMAA10-08 Desktop Microphone © Tait Electronics Limited November 2007...

  • Page 610: Adjustment

    (conventional radios) or MPT Key Settings form (trunking radios). Set CH_GP101 to ‘Input’, ‘Active Low’ and assign the action ‘Simulate F1 to F4 Key’ (Programmable I/O form, Digital tab). TMAA10-08 Desktop Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 611: Interface Specification

    Table 37.1 Desktop microphone connector—pins and signals Signal Description — not connected — not connected — not connected MIC_PTT MIC_AUD audio from the microphone AGND analogue ground — not connected — not connected TM8100/TM8200 Service Manual TMAA10-08 Desktop Microphone © Tait Electronics Limited November 2007...
  • Page 612 TMAA10-08 Desktop Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 613: Topa-Sv-024 Test Unit

    TOPA-SV-024 Test Unit The TOPA-SV-024 test unit is used to test and maintain Tait portable and mobile radios by providing an interface between the radio, a test PC, and an RF communications test set. The diagram below shows the front panel of the test unit.
  • Page 614 (mini UHF or programming auxiliary BNC) connector (DB9) connector (DB15) TMAA23-02 cable (50W/40W radios) DC power supply TMAA20-03 cable radio with blank control head (25W radios) banana plugs TOPA-SV-024 Test Unit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 615: Operation

    This 3-way toggle switch is used to switch between Mod Audio/Audio Tap In, Mic Audio, and Off (no audio signal). With the Tait Orca portables, this switch can be used for setting up dual ■ point modulation by applying modulation to different parts of the radio.
  • Page 616 The speaker of the mobile cannot be disconnected. When set to Radio, only the speaker of the mobile is active. ■ When set to Load, the speaker of the mobile remains active. ■ TOPA-SV-024 Test Unit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 617: Pcb Information

    Res Flm 4x1.6 2k7 5% 0.4w 030-52560-20 Res Flm 4x1.6 56e 5% 0.4w 030-55100-20 Res Flm 4x1.6 10k 5% 0.4w 38.3.2 PCB Layout top side IPN 220-01418-02 bottom side TM8100/TM8200 Service Manual TOPA-SV-024 Test Unit © Tait Electronics Limited November 2007...
  • Page 618 38.3.3 Circuit Diagram TOPA-SV-024 Test Unit TM8100/TM8200 Service Manual © Tait Electronics Limited November 2007...

  • Page 619: Important Notice

    MERGED INTO ANOTHER PROGRAM WILL AUTOMATICALLY AND WITHOUT NOTICE FROM CONTINUE TO BE SUBJECT TO THE TERMS AND TAIT IN THE EVENT THAT THE LICENSEE FAILS TO CONDITIONS OF THIS AGREEMENT COMPLY WITH ANY TERM OR CONDITION OF THE LICENSEE MAY NOT DUPLICATE...

  • Page 620: Limited Warranty

    THAT SUBJECT ONLY TO ANY EXPRESS WRITTEN OR OTHERWISE AT LAW FOR ANY LOSSES OR TERMS OF AGREEMENT TO THE CONTRARY DAMAGES WHETHER GENERAL SPECIAL BETWEEN TAIT AND THE LICENSEE THIS IS THE EXEMPLARY PUNITIVE DIRECT INDIRECT OR COMPLETE AND EXCLUSIVE STATEMENT OF THE...

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