Tait TM8235 Service Manual
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Tait TM8235 Service Manual

Tm8100 series; tm8200 series
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Table of Contents

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See also: User Manual
TM8100 mobiles
TM8200 mobiles
Service Manual
MMA-00005-04
Issue 4
June 2006

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Summary of Contents for Tait TM8235

  • Page 1 TM8100 mobiles TM8200 mobiles Service Manual MMA-00005-04 Issue 4 June 2006...
  • Page 2 Directive requires that this product be disposed of Limited. separately from the general waste stream when its The word TAIT and the TAIT logo are trademarks of service life is over. Please be environmentally Tait Electronics Limited. responsible and dispose through the original supplier, All trade names referenced are the service mark, your local municipal waste “separate collection”...

  • Page 3: Table Of Contents

    26 Installing an Enhanced Remote Kit ......527 27 TMAA04-04 Crossband Linking Cable ..... . 543 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 4 34 TOPA-SV-024 Test Unit....... . 571 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 5: Preface

    Control-head board (3-digit display) : 220-02151-02 Control-head board (graphical display) : 220-01718-01 Control-head board (RJ45) : 220-01720-05 Programming application (TM8100) : version 2.92 Programming application (TM8200) : version 2.1 Calibration application : version 2.71 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • 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. The following manuals are mainly of concern to third-party developers. 3DK Manuals The manuals are supplied on the 3DK (third-party developer’s kit)

  • Page 7: Publication Record

    This alert is used to warn about the risk of equipment dam- age or malfunction. Note This alert is used to highlight information that is required to ensure that procedures are performed correctly. TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 8: Abbreviations

    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 In-Phase and Quadrature International Service Centre Liquid-Crystal Display TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • 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 June 2006...
  • Page 10 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 11: Chapter 1 Description Of The Radio

    TM8100 mobiles TM8200 mobiles Chapter 1 Description of the Radio TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 12 3.11 RJ45 Control Head ........98 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • 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 ©...
  • 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 June 2006...

  • Page 15: Frequency Bands

    The control heads are identical for all RF output power options. The 40W/50W radio is available in the following frequency bands: B1 (50W) H5 (40W) H7 (40W) The 25W radio is available in the following frequency bands: TM8100/TM8200 Service Manual Introduction © Tait Electronics Limited June 2006...

  • 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 “Chapter 3 Accessories” on page 447. The radios allow for the connection of a comprehensive range of audio...

  • Page 17: Product Codes

    5=1-digit-display control head, 6=3-digit-display control head. c identifies the control-head configuration: 0=no options, 4=RS-485 option 1 identifies the control-head configuration of the digital TM9100 product line. dd identifies label and branding options: 0T=Tait, 0U=unbranded. TM8100/TM8200 Service Manual Introduction © Tait Electronics Limited June 2006...

  • Page 18: 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. Introduction TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 19: 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 June 2006...
  • Page 20 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 21 Components of the radio body 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 (50W/40W radio only) TM8100/TM8200 Service Manual Description © Tait Electronics Limited June 2006...
  • Page 22 25W radio. The grooves at the bottom of the 40W/50W radio are deeper than those of the 25W radio. For additional heat dissipation, the 40W/50W radio has an additional L-shaped gap pad between the chassis and the main board. Description TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 23 (50W/40W 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 June 2006...
  • Page 24 Description TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 25 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 June 2006...
  • Page 26 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 June 2006...
  • Page 27 (x2) short light pipe long light pipe space-frame speaker clamp speaker 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 June 2006...
  • Page 28 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 June 2006...
  • Page 29 The speaker cable plugs into the speaker connector on the rear side of the control-head board Note In some configurations the speaker may be disconnected. TM8100/TM8200 Service Manual Description © Tait Electronics Limited June 2006...
  • Page 30 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 June 2006...
  • Page 31 (optional) speaker 3 x 8 PT screw (x3) concealed microphone (optional) control-head board elastomeric strip (x2) keypad space-frame short light pipe front panel assembly long light pipe TM8100/TM8200 Service Manual Description © Tait Electronics Limited June 2006...
  • Page 32 , 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 June 2006...
  • Page 33 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 June 2006...
  • Page 34 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 June 2006...

  • Page 35: 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 June 2006...

  • Page 36: 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 June 2006...
  • Page 37 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 June 2006...
  • Page 38 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 June 2006...
  • Page 39 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 June 2006...
  • Page 40 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 June 2006...
  • Page 41 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 June 2006...
  • Page 42 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 June 2006...
  • Page 43 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 June 2006...
  • Page 44 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 June 2006...

  • Page 45: Hardware And Software Architecture

    No separate circuit board is required for a dynamic microphone. TM8100/TM8200 Service Manual Description © Tait Electronics Limited June 2006...
  • Page 46 Figure 2.14 Hardware architecture of the main board Description TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 47 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 June 2006...
  • Page 48 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 June 2006...
  • Page 49 Tools > Options > 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 June 2006...

  • Page 50: Operation In Receive Mode

    RISC processor (on FPGA of digital board) custom logic (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 June 2006...
  • Page 51 Figure 2.16 Transceiver operation TM8100/TM8200 Service Manual Description © Tait Electronics Limited June 2006...
  • Page 52 (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 June 2006...
  • Page 53 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 June 2006...
  • Page 54 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 June 2006...

  • Page 55: Operation In Transmit Mode

    RISC processor (on FPGA of digital board) custom logic (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 June 2006...
  • Page 56 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 June 2006...
  • Page 57 VCO frequencies. The net result is that the loop “locks” to a programmed multiple of the reference frequency. TM8100/TM8200 Service Manual Description © Tait Electronics Limited June 2006...
  • Page 58 The frequency-acquisition process of the FCL and RF PLL is able to occur concurrently with minimal loop interaction owing to the very large difference in frequency step size between the loops. Description TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 59 PIN switch. The PIN switch toggles the antenna path between the receiver and transmitter in receive and transmit modes respectively. Finally, the output is low-pass-filtered to bring harmonic levels within specification. TM8100/TM8200 Service Manual Description © Tait Electronics Limited June 2006...
  • Page 60 The ramp-up and ramp-down waveforms are produced by playing back the look-up table in forward and reverse order respectively. For a given power level the look-up table values are scaled by a steady-state Description TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 61 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 June 2006...
  • Page 62 Description TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 63: 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 June 2006...
  • Page 64 Figure 3.1 Main board hardware architecture Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 65: Transmitter Circuitry

    10, 15, 25, and 50 watts (VHF), and 10, 15, 20, and 40 watts (UHF) for 40W/50W radios 1, 5, 12 and 25 watts (all bands) for 25W radios. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited June 2006...
  • Page 66 Figure 3.2 Block diagram of the transmitter circuitry Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 67 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 June 2006...

  • Page 68: Receiver Circuitry

    Raw demodulated audio can be tapped out from the DSP for use with an external modem. The modem may be connected to the auxiliary connector or to the external options connector when an internal options board is fitted. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 69 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 June 2006...
  • Page 70 Figure 3.4 Block diagram of the receiver circuitry (B1, H5, H6 bands after PCB issue 05 & other bands) Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 71 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 72: Frequency Synthesizer Circuitry

    25kHz (30kHz for A4 band). There are some constraints imposed by the capabilities of the synthesizer hardware, especially the tuning range of the VCOs. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 73 Figure 3.5 Block diagram of the frequency synthesizer circuitry TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited June 2006...
  • Page 74 (30kHz for A4) with a width that is dependent on the phase error. When the output frequency of the synthesizer is correct, there is no error and the charge pump output will become open circuit. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 75 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 June 2006...

  • Page 76: 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 June 2006...

  • Page 77: Codec And Audio Circuitry

    The audio circuitry performs four functions: Audio Circuitry output of audio signal for speaker input of microphone audio signal input of auxiliary audio signal output of auxiliary audio signal. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited June 2006...
  • Page 78 Figure 3.7 Block diagram of the CODEC and audio circuitry Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 79 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 June 2006...
  • Page 80 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 June 2006...

  • Page 81: Power Supply Circuitry

    Some internal power supplies can be controlled by means of digital lines depending on the mode in which the radio is operating. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited June 2006...
  • Page 82 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 June 2006...
  • Page 83 TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited June 2006...
  • Page 84 (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 June 2006...
  • Page 85 This mode can also be activated by making an emergency call or by pressing a key that has been programmed appropriately. The concealed microphone is typically fitted when the emergency power-sense option is selected. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited June 2006...
  • Page 86 Connector Note The links LK7 and LK8 have the alternative designations R787 and R786 respectively. The factory-default setting is with LK5 and LK7 inserted and LK6 and LK8 omitted. Circuit Descriptions TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 87: Interface Circuitry

    The 5V supply mentioned above is provided by a simple buffered zener 5-Volt Regulator regulator formed by Q702, D721, R721 and R722. The resistor R722 limits the current to about 25mA under short-circuit conditions. TM8100/TM8200 Service Manual Circuit Descriptions © Tait Electronics Limited June 2006...
  • Page 88 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 June 2006...

  • Page 89: Digital Board

    3.12. For a block diagram of the digital board of the TM8100 radios, refer to Figure 3.13. 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 June 2006...
  • Page 90 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 June 2006...
  • Page 91 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 June 2006...

  • Page 92: Control-Head Board With Graphical Display

    “Connectors” on page 36. 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 93 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 June 2006...
  • Page 94 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 June 2006...

  • Page 95: Control-Head Board With 1-, 2- Or 3-Digit Display

    “Connectors” on page 36. 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 96 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 June 2006...
  • Page 97 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 June 2006...

  • Page 98: 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 June 2006...

  • Page 99: Chapter 2 Servicing The Radio

    TM8100 mobiles TM8200 mobiles Chapter 2 Servicing the Radio TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 100 9.11 VCXO and CODEC Circuitry ......237 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 101 14.12 PTT Faulty ..........426 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 102 16 Spare Parts ......... . .437 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 103: General Information

    All ASCs with the necessary endorsements may carry out level-1 and level-2 repairs of these radios, whether under warranty or not. TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...
  • Page 104 ASC and Tait-only access. Log-in passwords are needed for associate and Tait-only access; Technical Support supplies service centres with the necessary log-in information. (The unsecured portion of the Technical Support website is accessible to the general public.
  • Page 105 PCB information is compiled whenever there is a major change in the layout of the board. All PCB information is published on the Technical Support website. An additional source of information to service centres is the Tait FOCUS Tait FOCUS Database call-logging database.

  • Page 106: 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 June 2006...
  • Page 107 Cable (50W/40W power connector to banana plugs plus speaker connector) T2000-A19 Cable (DB9 socket to RJ12 plug) TOPA-SV-024 Test unit MMA-00005-xx Service manual MMA-00037-xx PCB information TMAA20-01 Product support CD 406-00046-xx Programming CD TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...

  • Page 108: Servicing Precautions

    Purchase an antistatic bench kit from a reputable manufacturer and install and test it according to the manufacturer’s instructions. Figure 4.1 shows a typical antistatic bench set-up. General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 109 Avoid RF burns. Do not touch the antenna while the transmitter is operating. Important The radio has been designed to operate with a 50Ω termination impedance. Do not operate the transmitter TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...
  • Page 110 406.0 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 June 2006...

  • Page 111: Test Equipment Setup

    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 June 2006...
  • Page 112 AC input (BNC) TM9100 radio power connector RF connector (mini UHF or auxiliary BNC) connector (DB15) TMAA23-02 cable (50W/40W radios) DC power supply TMAA20-03 cable (25W radios) banana plugs General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 113: Replacing Board Components

    CSO or, in the case of a CSO, from TEL. Always ensure that the replacement component has the identical specification to that given in the parts list. It is particularly important for the tolerances to be the same. TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...

  • Page 114: 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 General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 115 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. TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...

  • Page 116: 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 117 shows the locations of the components. General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 117 (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) TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...

  • Page 118: 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. General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 119 (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) TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...
  • Page 120 205 – Erase persistent data None Effectively resets the calibration parameters to their default values General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 121 (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) TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...
  • Page 122 (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) General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 123 (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) TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...
  • Page 124 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) General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 125 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 ^ . TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...

  • Page 126: Defining Frequency Bands

    C0 = 174MHz to 225MHz D band D1 = 216MHz to 266MHz H band H5 = 400MHz to 470MHz H6 = 450MHz to 530MHz H7 = 450MHz to 520MHz General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 127: 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 TM8100/TM8200 Service Manual General Information © Tait Electronics Limited June 2006...
  • Page 128 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). General Information TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 129: 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 437. TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited June 2006...

  • Page 130: 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 June 2006...

  • Page 131: 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 June 2006...
  • Page 132 This will release the heat-transfer block from the chassis. With the 40W/50W radio, the gap pad on the L-shaped ridge must be replaced each time the main board is removed. Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 133 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 (50W/40W radio only) TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited June 2006...
  • Page 134 With the 40W/50W radio, use a Torx T6 screwdriver to undo the two 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 June 2006...
  • Page 135 K30x8 PT screw (x2) gap pad (50W/40W 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 June 2006...
  • Page 136 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 June 2006...

  • Page 137: Reassembling The Radio Body

    Figure 5.6 Contact surfaces on the bottom side of the main board contact surface of L-shaped gap pad contact surface tin-plated of rectangular copper plate Audio-PA area gap pad TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited June 2006...
  • Page 138 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 June 2006...
  • Page 139 (refer to Figure 5.3 on page 133) 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 June 2006...
  • Page 140 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 June 2006...

  • Page 141: 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 June 2006...
  • Page 142 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 June 2006...
  • Page 143 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 June 2006...
  • Page 144 Figure 5.11 in the order: , and then To release each clip use a 3/16 inch (5mm) flat-bladed screwdriver to Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 145 (optional) speaker 3 x 8 PT screw (x3) concealed microphone (optional) control-head board elastomeric strip (x2) keypad space-frame short light pipe front panel assembly long light pipe TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited June 2006...
  • Page 146 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) Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 147 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 TM8100/TM8200 Service Manual Disassembly and Reassembly © Tait Electronics Limited June 2006...
  • Page 148 Disassembly and Reassembly TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 149: 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 June 2006...
  • Page 150 Disassemble the control head and repair all damage as described in “Disassembling and Reassembling the Control Head” on page 141. Then re-assemble the control head and re-attach it to the radio body. Servicing Procedures TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 151 If the main-board assembly was replaced or if the repair failed, re- assemble the radio as described in “Disassembly and Reassembly” on page 129. Conclude with the tasks of “Final Tasks” on page 157. TM8100/TM8200 Service Manual Servicing Procedures © Tait Electronics Limited June 2006...
  • Page 152 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 153 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 June 2006...
  • Page 154 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 June 2006...
  • Page 155 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 381. TM8100/TM8200 Service Manual Servicing Procedures © Tait Electronics Limited June 2006...
  • Page 156 “Final Tasks” on page 157. 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 June 2006...

  • Page 157: Final Tasks

    Refer to the online help of the calibration application. TM8100/TM8200 Service Manual Servicing Procedures © Tait Electronics Limited June 2006...
  • Page 158 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 June 2006...
  • Page 159 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 June 2006...
  • Page 160 10dB of attenuation switched in when the test unit switch is RX AUDIO SINAD PORTABLE MOBILE set to . Refer to “TOPA-SV-024 Test Unit” on page 571 for details. MOBILE Servicing Procedures TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 161 Check operation of microphone. Check operation of hook-switch. 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 162 Servicing Procedures TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 163: 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 June 2006...
  • Page 164 If it does, go to Task 2. If it does not, the repair failed; replace the board and go to “Final Tasks” on page 157. Power Supply Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 165 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 June 2006...
  • Page 166 If the voltage is correct, the digital board is faulty; replace the board and go to “Final Tasks” on page 157. If the voltage is not correct, go Step Power Supply Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 167 If the radio powers up, return to “Initial Tasks” on page 149. If the radio fails to power up, the repair failed; replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Power Supply Fault Finding © Tait Electronics Limited June 2006...
  • Page 168 “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. Power Supply Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 169 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 June 2006...
  • Page 170 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 June 2006...
  • Page 171 “Final Tasks” on page 157. If the fault could not be found or repairs failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Power Supply Fault Finding © Tait Electronics Limited June 2006...
  • Page 172 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. Power Supply Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 173: 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 June 2006...
  • Page 174 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 June 2006...
  • Page 175 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the fault could not be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Interface Fault Finding © Tait Electronics Limited June 2006...
  • Page 176 Figure 8.4 Components of the interface circuitry (bottom side) Interface Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 177 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 June 2006...
  • Page 178 Interface Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 179: 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 June 2006...

  • Page 180: 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 126. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 181 (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 183 (VHF radios). TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 182 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 198. If necessary, investigate the receiver later. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 183: 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 June 2006...
  • Page 184 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 June 2006...
  • Page 185 “Final Tasks” on page 157. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 186 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) Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 187 “Final Tasks” on page 157. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 188 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 June 2006...
  • Page 189 “Final Tasks” on page 157. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 190 Figure 9.5 Transmit-receive switch components — VHF bands Q5002 Q5003 A4 band Q5003 Q5002 SYN TOP Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 191 “Final Tasks” on page 157. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...

  • Page 192: Phase-Locked Loop

    “Final Tasks” on page 157. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 193 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 June 2006...
  • Page 194 Determine if the fault has been removed. If it has, go to “Final Tasks” on page 157. If it has not, the FCL is suspect; go to “Power Supply for FCL” on page 227. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 195 “Final Tasks” on page 157. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 196 Repair the fault. Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 197 Synthesizer circuitry under the can (top side) SYN TOP VHF bands Q512 Junction of C541 and R547 TP503 UHF bands Q512 Junction of C541 and R547 TP503 TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...

  • Page 198: Loop Filter

    C565: < 0.5 V 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 June 2006...
  • Page 199 “Final Tasks” on page 157. If it is not, or if no fault could be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 200 “Final Tasks” on page 157. If it is not, or if no fault could be found, replace the board and go to “Final Tasks” on page 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 201 “Final Tasks” on page 157. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 202 “Final Tasks” on page 157. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 203: Receive Vco And Related Circuitry (Uhf Radios)

    Minimum and maximum receive frequencies for the different UHF frequency bands Frequency band Receive frequency in MHz Minimum Maximum 337 ± 5 441 ± 5 H6/H7 378 ± 5 498 ± 5 TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 204 Figure 9.9 Measurement points for the VCO and related circuitry in UHF radios Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 205 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 June 2006...
  • Page 206 Figure 9.10 Synthesizer circuitry under the cans (UHF radio, top side) SYN TOP VCO TOP Q507 Q506 Tx port Q508 Junction of C541 and R547 Rx port Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 207 157. If it has not, replace the board and go to “Final Tasks” on page 157. Figure 9.11 Synthesizer circuitry under the VCO BOT (UHF radios, bottom side) Q5001 TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 208 157. If they are still not correct, go to Step Resolder R542 in position (see Figure 9.10). Replace the board and go to “Final Tasks” on page 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 209 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 June 2006...
  • Page 210 “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. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 211 “Final Tasks” on page 157. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...

  • Page 212: Transmit Vco And Related Circuitry (Uhf Radios)

    Minimum and maximum transmit frequencies for the different UHF frequency bands Frequency band Transmit frequency in MHz Minimum Maximum 371 ± 5 492 ± 5 H6/H7 419 ± 5 545 ± 5 Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 213 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 June 2006...
  • Page 214 157. If they are still not correct, go to Step Resolder R542 in position (see Figure 9.10). Replace the board and go to “Final Tasks” on page 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 215 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 June 2006...
  • Page 216 “Final Tasks” on page 157. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 217: Vco And Related Circuitry (Vhf Radios)

    Frequency in MHz Minimum Maximum 55 ± 5 125 ± 5 84 ± 5 200 ± 5 137 ± 5 247 ± 5 167 ± 5 287 ± 5 TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 218 Figure 9.12 Measurement points for the VCO and related circuitry in VHF radios Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 219 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 TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 220 Figure 9.13 Synthesizer circuitry under the can (VHF radios, top side) SYN TOP Tx port Junction of C541 and R547 Rx port Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 221 Confirm that the fault in the radio has been removed. If it has, go to “Final Tasks” on page 157. If it has not, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 222 Figure 9.14 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 Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 223 157. If they are still not correct, go to Step Resolder R542 in position (see Figure 9.13). Replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 224 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 Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 225 “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. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 226 “Final Tasks” on page 157. If they are not, or if no fault could be found, replace the board and go to “Final Tasks” on page 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 227: 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 9.15. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 228 Figure 9.15 Test and measurement points the FCL circuitry Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 229 Task 3 “Power Supply Fault Finding” on page 168. Figure 9.16 TCXO circuitry under the CDC TOP can VIA FOR MEASURING 3 V DC SUPPLY IF TOP CAN TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...

  • Page 230: Vcxo And Tcxo Outputs

    9.18). 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 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 231 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 TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 232 233. If the repair failed, replace the board and go to “Final Tasks” on page 157. Figure 9.18 FCL circuitry under the VCXO BOT can CAN FOR SYN BOT CAN DIGITAL BOARD CDC BOT CAN Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 233: Signals At Tp501 And Tp502

    3.0 ± 0.2 V A4 band: TCXO input at R520 (pin 4 of IC506): TCXO input: square wave with frequency of 10.4MHz and amplitude of 3.0 ± 0.2 V TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 234 9.18). 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 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 235 6. If the repair failed, resolder R527 in its original position as shown in Figure 9.17, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 236 If the signal is correct, the fault has been removed; go to “Final Tasks” on page 157. If the signal is not correct, the repair failed; replace the board and go to “Final Tasks” on page 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 237: Vcxo And Codec Circuitry

    9.18). 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 157. TM8100/TM8200 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited June 2006...
  • Page 238 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 157. Frequency Synthesizer Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 239: 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 126. TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited June 2006...

  • Page 240: Faulty Receiver Sensitivity

    “Excessive Loss of Sensitivity” on page 242 (sensitivity is very low) x < 500 000, go to “Moderate or Slight Loss of Sensitivity” on page 246 (sensitivity is low) Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 241 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 June 2006...

  • Page 242: 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 168. Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 243 Figure 10.2 Receiver circuitry under the can (UHF shown) Figure 10.3 Receiver circuitry under the can (top side) FE TOP Q401 Measurement point TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited June 2006...
  • Page 244 Recalibrate the receiver using the calibration application. Confirm the removal of the fault, and go to “Final Tasks” on page 157. If the repair failed go to Task Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 245 Recalibrate the receiver using the calibration application. Confirm the removal of the fault, and go to “Final Tasks” on page 157. If the repair failed go to Task TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited June 2006...

  • Page 246: Moderate Or Slight Loss Of Sensitivity

    157. 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 Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 247 Recalibrate the receiver using the calibration application. Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, go to Task TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited June 2006...
  • Page 248 91 ± 15 134 ± 15 176 ± 15 210 ± 15 Voltage (V) 0.48 ± 0.24 1.07 ± 0.18 1.58 ± 0.18 2.07 ± 0.18 2.47 ± 0.18 Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 249 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited June 2006...

  • Page 250: Incorrect Rssi Readings

    Check if the RSSI fault has been removed. If it has, go to “Final Tasks” on page 157. If it has not, go to Task Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 251 2050 ± 40 1970 ± 40 AGC2 2220 ± 50 2150 ± 50 Receiver input power (dBm) Standard radio Trigger-base radio –44 –50 AGC0 –60 –54 AGC1 –68 –62 AGC2 TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited June 2006...
  • Page 252 157. 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. Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 253: 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 TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited June 2006...
  • Page 254 Channel spacing SINAD (dB) Minimum noise value Maximum noise value Narrow (12.5 kHz) 1900 2300 Medium (20 kHz) 3700 4200 1000 1500 Wide (25 kHz) 5000 7300 2200 3700 Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 255 Tasks” on page 157. If it has not, go to Task 10 and check the RSSI calibration. Figure 10.4 TCXO circuitry under the can (top side) CDC TOP TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited June 2006...

  • Page 256: High Receiver Distortion

    Task Check if the distortion fault has been removed. If it has, go to “Final Tasks” on page 157. If it has not, go to Task Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 257 Repair any fault, confirm the removal of the fault, and go to “Final Tasks” on page 157. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Receiver Fault Finding © Tait Electronics Limited June 2006...
  • Page 258 Receiver Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 259: Transmitter Fault Finding (40W/50W)

    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 (40W/50W) © Tait Electronics Limited June 2006...
  • Page 260 Replace all cans that have been removed only after repairing the board. Can Replacement An exception is the B1 band, however, where the can must be in LPF TOP place if the transmitter is to operate correctly. Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 261 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 (40W/50W) © Tait Electronics Limited June 2006...

  • Page 262: 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 (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 263 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 (40W/50W) © Tait Electronics Limited June 2006...
  • Page 264 Figure 11.2 Point for measuring the power supply to the PAs and PA driver (VHF) Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 265 Figure 11.3 Point for measuring the power supply to the PAs and PA driver (UHF) TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 266 “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 (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 267 269. 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 168. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 268 Figure 11.4 Test points for checking the 9V supply, the forward and reverse RF power, and the inhibiting of the transmitter Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 269: Transmitter Rf Power

    Table 11.3 Voltages in millivolts corresponding to nominal forward and reverse powers Frequency band Forward power (318 command) Reverse power (319 command) 2600 to 3400 < 500 3200 to 3900 < 700 3300 to 4000 < 900 TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 270 Figure 11.5 Measurement and test points for diagnosing faults concerning the transmitter RF power Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 271 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 TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 272 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 Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 273 326 4 326 3 326 2 326 1 The above measurements should confirm that the power remains unchanged at all settings. Carry out Task 12 and then Task TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 274 Repair any fault, confirm the removal of the fault, and go to “Final Tasks” on page 157. If the repair failed or no fault could be found, replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 275 381. If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 157. If the repair failed, replace the board, and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 276 PAF TOP can (UHF shown) DIRC TOP Q310 Q309 D301 TEMPERATURE SENSOR MOUNTING POINT FOR TEST CAPACITOR H5, H7 BANDS TEST PAD Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 277 Task 33 — the PIN switch and LPF require checking. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 278 If the power and current are now correct at all three frequencies, the fault has been rectified; go to “Final Tasks” on page 157. If they are not, go to Task 26 “RF Signal Path” on page 303. Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 279 38 ± 5W 48 ± 5W 33 ± 5W 16 ± 5W 17 ± 5W 21 ± 5W 25 ± 5W 32 ± 5W 40 ± 5W TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...

  • Page 280: 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 (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 281 Figure 11.7 Measurement and test points for diagnosing faults in the biasing of the PAs and PA driver TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 282 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 Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 283 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 (40W/50W) © Tait Electronics Limited June 2006...
  • Page 284 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 (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 285 “Final Tasks” on page 157. If the repair failed or Q310 itself is faulty, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 286 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 (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 287 “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 288 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 Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 289 “Final Tasks” on page 157. If the repair failed or Q309 itself is faulty, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 290 “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 291 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 381. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 292 If the voltage is correct, replace Q306; confirm the removal of the fault and go to “Final Tasks” on page 157. If it is not, go to Task Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 293 Figure 11.11 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 TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 294 Figure 11.12 PA driver circuitry under the can (UHF) PAD TOP COMPONENTS C310, R324 AND R327 PAD TOP R324 C310 Q306 GATE OF Q306 H5, H7 BANDS Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 295 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 381. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 296 Figure 11.13 Circuitry under the DIRC TOP Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 297 33. If there is a fault, go to Step In the buffer amplifiers, check R340 (see Figure 11.8 for VHF and Figure 11.14 for UHF) and R341 (see Figure 11.14 Figure 11.15). TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 298 Figure 11.14 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 (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 299 Figure 11.15 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 (40W/50W) © Tait Electronics Limited June 2006...
  • Page 300 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 301 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...

  • Page 302: 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 Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 303 Check C3500 (see Figure 11.17). If C3500 is not faulty, go to “Frequency Synthesizer Fault Finding” on page 179. If C3500 is faulty, replace it and return to Step TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 304 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 Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 305 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 (40W/50W) © Tait Electronics Limited June 2006...
  • Page 306 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 (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 307 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 308 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 309 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 310 “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 (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 311 Figure 11.18 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 TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 312 Figure 11.19 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 Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 313 60W (UHF), 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 TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 314 Figure 11.20 Circuitry under the can, and the points for attaching the test lead and test DIRC TOP capacitor Mounting point for test capacitor Test pad Test pad Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 315 If the power in both the above cases is now correct, the fault has been rectified; go to “Final Tasks” on page 157. If it is not, the repair failed; replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 316 14. 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 (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 317 PIN TOP TEST PAD TEST PAD MOUNTING POINT FOR TEST CAPACITOR D307 D3507 B1 BAND H5, H7 BANDS TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 318 If the power in both the above cases is now correct, the fault has been rectified; go to “Final Tasks” on page 157. If it is not, the repair failed; replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 319 Figure 11.22 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 (40W/50W) © Tait Electronics Limited June 2006...
  • Page 320 Figure 11.23 Components of concern on the bottom-side of the main board (UHF) COPPER PLATE VCO BOT CAN R3000 H5, H7 BANDS Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 321 Figure 11.24 Circuitry under the LPF TOP B1 BAND H5, H7 BANDS TM8100/TM8200 Service Manual Transmitter Fault Finding (40W/50W) © Tait Electronics Limited June 2006...
  • Page 322 (UHF), the fault has been rectified; go to “Final Tasks” on page 157. If it does not, the repair failed; replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (40W/50W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 323: 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 June 2006...
  • Page 324 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 June 2006...
  • Page 325 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 June 2006...

  • Page 326: 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 June 2006...
  • Page 327 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 June 2006...
  • Page 328 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 June 2006...
  • Page 329 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 June 2006...
  • Page 330 334. 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 168. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 331 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 June 2006...

  • Page 332: 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 June 2006...
  • Page 333 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 June 2006...
  • Page 334 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 June 2006...
  • Page 335 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 June 2006...
  • Page 336 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 June 2006...
  • Page 337 381. If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited June 2006...
  • Page 338 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 June 2006...
  • Page 339 Task 31 — the PIN switch and LPF require checking. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited June 2006...
  • Page 340 If the power and current are now correct at all three frequencies, the fault has been rectified; go to “Final Tasks” on page 157. If they are not, go to Task 25 “RF Signal Path” on page 362. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 341 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 June 2006...

  • Page 342: 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 June 2006...
  • Page 343 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 June 2006...
  • Page 344 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 June 2006...
  • Page 345 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 June 2006...
  • Page 346 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 June 2006...
  • Page 347 “Final Tasks” on page 157. If the repair failed or Q310 itself is faulty, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited June 2006...
  • Page 348 12.8). If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 349 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 June 2006...
  • Page 350 “Final Tasks” on page 157. If the repair failed or Q309 itself is faulty, replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 351 12.8). If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited June 2006...
  • Page 352 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 381. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 353 If the voltage is correct, replace Q306; confirm the removal of the fault and go to “Final Tasks” on page 157. If it is not, go to Task TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited June 2006...
  • Page 354 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 June 2006...
  • Page 355 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 381. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited June 2006...
  • Page 356 Figure 12.11 Circuitry under the can (UHF shown) DIRC TOP Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 357 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 June 2006...
  • Page 358 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 359 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 June 2006...
  • Page 360 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 361: 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 June 2006...
  • Page 362 Check C300 (see Figure 12.14). If C300 is not faulty, go to “Frequency Synthesizer Fault Finding” on page 179. If C300 is faulty, replace it and return to Step Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 363 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 June 2006...
  • Page 364 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 June 2006...
  • Page 365 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 June 2006...
  • Page 366 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 June 2006...
  • Page 367 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited June 2006...
  • Page 368 “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 June 2006...
  • Page 369 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 June 2006...
  • Page 370 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 June 2006...
  • Page 371 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 June 2006...
  • Page 372 If the power in both the above cases is now correct, the fault has been rectified; go to “Final Tasks” on page 157. If it is not, the repair failed; replace the board and go to “Final Tasks” on page 157. Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 373 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 June 2006...
  • Page 374 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 June 2006...
  • Page 375 If the power in both the above cases is now correct, the fault has been rectified; go to “Final Tasks” on page 157. If it is not, the repair failed: replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited June 2006...
  • Page 376 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 June 2006...
  • Page 377 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 June 2006...
  • Page 378 Figure 12.20 Circuitry under the can (top side) LPF TOP Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 379 If the power in both the above cases exceeds 35 W, the fault has been rectified; go to “Final Tasks” on page 157. If it does not, the repair failed; replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual Transmitter Fault Finding (25W) © Tait Electronics Limited June 2006...
  • Page 380 Transmitter Fault Finding (25W) TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 381: 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 June 2006...

  • Page 382: 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 168. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 383 “Faulty Modulation” (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 June 2006...

  • Page 384: 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 June 2006...
  • Page 385 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 157. TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited June 2006...
  • Page 386 “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. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 387 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 June 2006...
  • Page 388 “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. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 389 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 June 2006...
  • Page 390 “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. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 391: No Speaker Audio At Auxiliary Connector

    These tasks need to be followed by those of “Faulty Modulation Using Auxiliary Connector” on page 402 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 June 2006...
  • Page 392 Task 15 “Faulty Modulation Using Auxiliary Connector” on page 402. If there is no other fault, go to “Final Tasks” on page 157. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 393 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 June 2006...
  • Page 394 “Faulty Modulation Using Auxiliary Connector” on page 402. If there is no other fault, go to “Final Tasks” on page 157. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 395 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 June 2006...

  • Page 396: Faulty Receiver

    “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. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 397 “Receiver Fault Finding” on page 239. Either the digital board or CODEC 1 (IC204) is faulty; replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited June 2006...

  • Page 398: 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 June 2006...
  • Page 399 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 June 2006...
  • Page 400 “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. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 401 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 June 2006...

  • Page 402: Faulty Modulation Using Auxiliary Connector

    Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 403 Confirm the removal of the fault and go to “Final Tasks” on page 157. If the repair failed, replace the board and go to “Final Tasks” on page 157. TM8100/TM8200 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited June 2006...
  • Page 404 CODEC and Audio Fault Finding TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 405: 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 149. TM8100/TM8200 Service Manual Fault Finding of Control Head with Graphical Display © Tait Electronics Limited June 2006...

  • Page 406: 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 June 2006...
  • Page 407 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 June 2006...

  • Page 408: 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 June 2006...
  • Page 409 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 June 2006...

  • Page 410: 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 June 2006...
  • Page 411 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 June 2006...

  • Page 412: 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 June 2006...

  • Page 413: 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 June 2006...

  • Page 414: 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 June 2006...
  • Page 415 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 June 2006...

  • Page 416: 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 June 2006...
  • Page 417 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 June 2006...

  • Page 418: 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 June 2006...
  • Page 419 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 June 2006...

  • Page 420: 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 June 2006...
  • Page 421 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 June 2006...

  • Page 422: 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 424. Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 423 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 June 2006...

  • Page 424: 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 June 2006...
  • Page 425 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 June 2006...

  • Page 426: 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 June 2006...
  • Page 427 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 June 2006...
  • Page 428 Fault Finding of Control Head with Graphical Display TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 429: 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 149. TM8100/TM8200 Service Manual Fault Finding of Control Head with 1- 2- or 3-Digit Display © Tait Electronics Limited June 2006...
  • Page 430 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 June 2006...
  • Page 431 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 June 2006...

  • Page 432: 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 June 2006...

  • Page 433: Some Leds Faulty

    “Initial Tasks” on page 149. If it has not, replace the control-head board and return to “Initial Tasks” on page 149. TM8100/TM8200 Service Manual Fault Finding of Control Head with 1- 2- or 3-Digit Display © Tait Electronics Limited June 2006...

  • Page 434: All Leds Faulty

    “Initial Tasks” on page 149. If it has not, replace the control-head board and return to “Initial Tasks” on page 149. Fault Finding of Control Head with 1- 2- or 3-Digit Display TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 435: Some But Not All Keys Faulty

    Tasks” on page 149. If it has not, replace the control-head board and return to “Initial Tasks” on page 149. TM8100/TM8200 Service Manual Fault Finding of Control Head with 1- 2- or 3-Digit Display © Tait Electronics Limited June 2006...

  • Page 436: 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 149. Fault Finding of Control Head with 1- 2- or 3-Digit Display TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 437: 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 June 2006...
  • Page 438 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 June 2006...
  • Page 439 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 June 2006...
  • Page 440 Figure 16.3 Spare parts of the control head with graphical display 1& Spare Parts TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 441 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 June 2006...
  • Page 442 Figure 16.4 Spare parts of the control heads with 1, - 2- or 3-digit display 1& 3828z_01 Spare Parts TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 443 Spares kit TMAA22-01 contains an assembled 2-digit-display control head without the control-head board. Spares kit TMAA22-90 contains an assembled 1-digit-display control head without the control-head board. Neither spares kit includes the optional parts of the concealed microphone. TM8100/TM8200 Service Manual Spare Parts © Tait Electronics Limited June 2006...
  • Page 444 Long light pipe 262-00004-xx The characters xx in an IPN stand for the issue number. Items will always be the latest issue at the time the radio is manufactured. Spare Parts TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 445 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 June 2006...
  • Page 446 Spare Parts TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 447: Chapter 3 Accessories

    TM8100 mobiles TM8200 mobiles Chapter 3 Accessories TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 448 21.4 PCB Information ........496 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 449 28.2 Radio Programming ........549 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 450 34.3 PCB Information ........575 TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 451: 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 108 for more information. TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited June 2006...
  • Page 452 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 June 2006...
  • Page 453 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. TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited June 2006...
  • Page 454 The keying time delay is used in conjuction with the keying signal (SK1 pin 1). Set DIP8 on, and adjust RV1 for the required time delay. Rotate RV1 clockwise to increase the delay, and counterclockwise to reduce the delay. TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 455: Installing The Line-Interface Board

    362-01108-XX cover seal 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 IPN. TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited June 2006...
  • Page 456 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 June 2006...
  • Page 457 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 June 2006...

  • Page 458: 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 June 2006...

  • Page 459: 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 June 2006...

  • Page 460: 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 June 2006...

  • Page 461: 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 June 2006...
  • Page 462 *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 June 2006...

  • Page 463: 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 June 2006...
  • Page 464 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 June 2006...

  • Page 465: 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 June 2006...
  • Page 466 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 June 2006...
  • Page 467 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 June 2006...
  • Page 468 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 June 2006...
  • Page 469 17.9.5 Line-Interface Board Circuit Diagram TM8100/TM8200 Service Manual TMAA01-01 Line-Interface Board © Tait Electronics Limited June 2006...
  • Page 470 TMAA01-01 Line-Interface Board TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 471: 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 June 2006...

  • Page 472: 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 June 2006...
  • Page 473 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 June 2006...

  • Page 474: 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 June 2006...

  • Page 475: 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 June 2006...
  • Page 476 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 June 2006...
  • Page 477 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 June 2006...
  • Page 478 18.4.4 RS-232 Board Circuit Diagram TMAA01-02 RS-232 Board TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 479: Tmaa01-05 Options-Extender Board

    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 Options-Extender Board © Tait Electronics Limited June 2006...
  • Page 480 Figure 19.1 at the top of the page shows the component locations. 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 Options-Extender Board TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 481: 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 Options-Extender Board © Tait Electronics Limited June 2006...
  • Page 482 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 Options-Extender Board TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 483: 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 Options-Extender Board © Tait Electronics Limited June 2006...
  • Page 484 “Power Supply Line” on page 480. 2. This can be re-configured to be RX_BEEP_IN. Refer to “RX_BEEP_IN Line” on page 480. 3. 3V3 CMOS output via 1kΩ series resistance. 5V tolerant input. TMAA01-05 Options-Extender Board TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 485: Pcb Information

    Ind 0603 Blm11-B102s 0.1a 057-10010-20 Ind 0603 Blm11-B102s 0.1a 057-10010-45 Ind SMD Pwr CDRH2D18 10UH .43A 057-10010-45 Ind SMD Pwr CDRH2D18 10UH .43A 057-10600-05 Ind 0603 Blm11p600s .5a F/Bead TM8100/TM8200 Service Manual TMAA01-05 Options-Extender Board © Tait Electronics Limited June 2006...
  • Page 486 19.4.2 TMAA01-05 Grid Reference List (PCB IPN 220-65203-00) Ref. Circuit Ref. Circuit Ref. Circuit 1C3 1B3 TMAA01-05 Options-Extender Board TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 487 19.4.3 Options-Extender Board Layout (top side) 19.4.4 Options-Extender Board Layout (bottom side) TM8100/TM8200 Service Manual TMAA01-05 Options-Extender Board © Tait Electronics Limited June 2006...
  • Page 488 19.4.5 Options-Extender Board Circuit Diagram TMAA01-05 Options-Extender Board TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 489: Tmaa02-02 Dtmf Microphone

    Squeeze the grommet and push the remaining corners into position. Check that the grommet is seated correctly in the cavity. Figure 20.1 Correct DTMF microphone grommet seating microphone grommet control head TM8100/TM8200 Service Manual TMAA02-02 DTMF Microphone © Tait Electronics Limited June 2006...

  • Page 490: 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 June 2006...

  • Page 491: 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 June 2006...

  • Page 492: 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 June 2006...

  • Page 493: 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 & Dynamic Microphones 493 © Tait Electronics Limited June 2006...

  • Page 494: Radio Programming

    Emergency Mic: select Concealed if a concealed microphone is installed. Refer to the online help of the programming application for more information. 494 TMAA02-06 Support Kit for Concealed & Dynamic Microphones TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 495: 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 & Dynamic Microphones 495 © Tait Electronics Limited June 2006...

  • Page 496: Pcb Information

    240-10003-00 Hdr SMD 6w 2x3 Lo-Prof 2mm 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 TMAA02-06 496 TMAA02-06 Support Kit for Concealed & Dynamic Microphones TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 497 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 & Dynamic Microphones 497 © Tait Electronics Limited June 2006...
  • Page 498 21.4.3 Concealed and Dynamic Microphone Support Board (bottom side) IPN 220-01712-01 498 TMAA02-06 Support Kit for Concealed & Dynamic Microphones TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 499 21.4.4 Concealed and Dynamic Microphone Board Circuit Diagram TM8100/TM8200 Service Manual TMAA02-06 Support Kit for Concealed & Dynamic Microphones 499 © Tait Electronics Limited June 2006...
  • Page 500 500 TMAA02-06 Support Kit for Concealed & Dynamic Microphones TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 501: Tmaa02-07 Concealed Microphone

    The adaptor flange can now be separated from the control head. Capsule Drill a 1mm diameter hole in the concealed- microphone cavity in the position indicated by the small ‘dimple’ TM8100/TM8200 Service Manual TMAA02-07 Concealed Microphone 501 © Tait Electronics Limited June 2006...

  • Page 502: Radio Programming

    UI Preferences form, Audio tab of the programming application may need to be selected. Emergency Mic: select Concealed. Refer to the online help of the programming application for more information. 502 TMAA02-07 Concealed Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 503: Tmaa02-08 Keypad Microphone

    The alphanumeric keys are used to enter letters, numbers and punctuation. Repeated presses of these keys will give you the characters shown in the table below. Characters Characters space 0 TM8100/TM8200 Service Manual TMAA02-08 Keypad Microphone © Tait Electronics Limited June 2006...

  • Page 504: Installation

    Microphone Clip user. It must be within easy reach of the user, but in such a position that the microphone PTT key cannot be inadvertently activated or jammed on. TMAA02-08 Keypad Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 505: Radio Programming

    — 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 TM8100/TM8200 Service Manual TMAA02-08 Keypad Microphone © Tait Electronics Limited June 2006...
  • Page 506 TMAA02-08 Keypad Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 507: 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 June 2006...

  • Page 508: 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 June 2006...

  • Page 509: 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 509. Unscrew the four self-tapping screws holding the security bracket base in place. TM8100/TM8200 Service Manual TMAA03-02 Security Bracket © Tait Electronics Limited June 2006...

  • Page 510: 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 June 2006...

  • Page 511: 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 512. TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited June 2006...
  • Page 512 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 June 2006...
  • Page 513 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 June 2006...
  • Page 514 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 June 2006...
  • Page 515 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 June 2006...
  • Page 516 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 June 2006...

  • Page 517: 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 June 2006...

  • Page 518: 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 June 2006...
  • Page 519 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 June 2006...

  • Page 520: 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 June 2006...
  • Page 521 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 June 2006...
  • Page 522 Board Layout IPN 220-02122-02 Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 523 Circuit Diagram TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited June 2006...
  • Page 524 038-13100-10 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 June 2006...
  • Page 525 Board Layout IPN 220-02123-01 TM8100/TM8200 Service Manual Installing a Remote Kit © Tait Electronics Limited June 2006...
  • Page 526 Circuit Diagram Installing a Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 527: 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 528. TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited June 2006...
  • Page 528 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 June 2006...
  • Page 529 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 June 2006...
  • Page 530 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 June 2006...
  • Page 531 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 June 2006...
  • Page 532 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 June 2006...

  • Page 533: 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 June 2006...

  • Page 534: 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 June 2006...
  • Page 535 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 June 2006...

  • Page 536: 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 June 2006...
  • Page 537 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 June 2006...
  • Page 538 Board Layout IPN 220-01721-04 Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 539 Circuit Diagram TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited June 2006...
  • Page 540 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 June 2006...
  • Page 541 Board Layout IPN 220-01720-05 TM8100/TM8200 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited June 2006...
  • Page 542 Circuit Diagram Installing an Enhanced Remote Kit TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 543: Tmaa04-04 Crossband Linking Cable

    External PTT (1) tab of the PTT form. Table 27.1 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 June 2006...
  • Page 544 Table 27.6 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 June 2006...

  • Page 545: Operational Testing

    Table 27.7 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 June 2006...

  • Page 546: Pcb Information

    219-03005-00 CBL TMA X-Band 220-02127-01 PCB MFX Programming cable 240-00031-00 Plg 15w Drng UL-CSA Pnl Mtg 240-06010-18 Conn 15w Hood/Cvr Drng MDJ15 402-00030-0X MANL f/instr TMAA04-04 XB TMAA04-04 Crossband Linking Cable TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 547 27.5.2 Crossband Linking Board Layouts IPN 220-02127-01 TM8100/TM8200 Service Manual TMAA04-04 Crossband Linking Cable © Tait Electronics Limited June 2006...
  • Page 548 27.5.3 Crossband Linking Board Circuit Diagram TMAA04-04 Crossband Linking Cable TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 549: Tmaa04-05 Ignition Sense Kit

    Radio Programming Program the AUX GPI3 line to ‘Power Sense (Ignition)’ and active to ‘High’. Refer to the online help of the programming application for more information. TM8100/TM8200 Service Manual TMAA04-05 Ignition Sense Kit © Tait Electronics Limited June 2006...
  • Page 550 TMAA04-05 Ignition Sense Kit TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 551: 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 June 2006...

  • Page 552: 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 June 2006...

  • Page 553: 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 June 2006...
  • Page 554 TMAA10-01 Desktop Microphone TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 555: Tmaa10-02 Handset

    Strip about 6mm (0.2 inches) of the coating off each of the five 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 June 2006...
  • Page 556 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 June 2006...

  • Page 557: Radio Programming

    Table 30.4 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 June 2006...

  • Page 558: Interface Specification

    — — — not connected CH_GPIO1 3 blue programmable line controlling private mode Figure 30.2 Handset to radio interface TMAA10-02 Handset TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 559: 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 June 2006...
  • Page 560 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 June 2006...

  • Page 561: 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 June 2006...

  • Page 562: 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 June 2006...

  • Page 563: 32.3 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 June 2006...

  • Page 564: 32.4 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 June 2006...

  • Page 565: 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 June 2006...

  • Page 566: 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 June 2006...
  • Page 567 32.7.2 Pre-Amplifier Board Layout TM8100/TM8200 Service Manual TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit © Tait Electronics Limited June 2006...
  • Page 568 32.7.3 Pre-Amplifier Board Circuit Diagram TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...

  • Page 569: Tmaa10-07 Desktop Microphone

    Plug the microphone cord into the microphone socket on the radio control head. TM8100/TM8200 Service Manual TMAA10-07 Desktop Microphone © Tait Electronics Limited June 2006...

  • Page 570: Adjustment

    Table 33.1 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 June 2006...

  • Page 571: 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 572 (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 June 2006...

  • Page 573: 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 574 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 June 2006...

  • Page 575: 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 34.3.2 PCB Layout top side IPN 220-01418-02 bottom side TM8100/TM8200 Service Manual TOPA-SV-024 Test Unit © Tait Electronics Limited June 2006...
  • Page 576 34.3.3 Circuit Diagram TOPA-SV-024 Test Unit TM8100/TM8200 Service Manual © Tait Electronics Limited June 2006...
  • Page 577 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 578 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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