Tait TM9100 Service Manual
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Tait TM9100 Service Manual

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Table Of Contents
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Table of Contents

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Download this manual See also: User Manual, Installation Manual
TM9100 mobiles
Service Manual
MMA-00017-01
August 2005

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Summary of Contents for Tait TM9100

  • Page 1 TM9100 mobiles Service Manual MMA-00017-01 Issue 1 August 2005...
  • Page 2 Website: http://www.taitworld.com To our European customers: Tait Electronics Limited is an environmentally responsible company which supports waste minimization and material recovery. The European Union’s Waste Electrical and Electronic Equipment Directive requires that this product be disposed of separately from the general waste stream when its service life is over.

  • Page 3: Table Of Contents

    24 TOPA-SV-024 Test Unit ....... . 477 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 4 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 5: Scope Of Manual

    “Tait Contact Information” on page Updates of Manual and Equipment In the interests of improving the performance, reliability or servicing of the equipment, Tait Electronics Ltd reserves the right to update the equipment or this manual or both without prior notice. TM9100 Service Manual...

  • Page 6: Issue

    Copyright All information contained in this manual is the property of Tait Electronics Ltd. All rights are reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, stored, or reduced to any electronic medium or machine-readable form, without prior written permission from Tait Electronics Ltd.

  • Page 7: Publication Record

    Analog-to-Digital Converter Automatic Gain Control Automatic Level Control APCO Association of Public Safety Communications Officials Accredited Service Center Bill of Materials C4FM Compatible Four-level Frequency Modulation CCTM Computer-controlled Test Mode CODEC Coder-Decoder TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 8: Tm9100 Service Manual

    Internal Part Number Intermediate Frequency In-Phase and Quadrature International Service Center Liquid-Crystal Display Light-Emitting Diode Low-Noise Amplifier Local Oscillator Low-Pass Filter Negative-Positive-Negative Project 25 Power Amplifier Printed Circuit Board Phase-Locked Loop Positive-Negative-Positive TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 9 Software Feature Enabler 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 Voltage-Controlled Oscillator VCXO Voltage-Controlled Crystal Oscillator TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 10 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 11: Chapter 1 Description Of The Radio

    TM9100mobiles Chapter 1 Description of the Radio TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 12: Table Of Contents

    3.9 Control-Head Board........90 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 13 Introduction The TM9100 series is a range of high-performance microprocessor- controlled radios for digital (APCO project 25-compatible), analog and mixed operation for voice and data communication. The radios are designed for installation in vehicles but can also be used in desktop, remote- monitoring and similar applications.

  • Page 14: Frequency Bands

    The control heads are identical for all RF output power options. The 50W/40W radio is available in the following frequency bands: B1 (50W) H5 (40W) H7 (40W) The 25W radio is available in the following frequency bands: Introduction TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 15 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 427. The radios allow for the connection of a comprehensive range of audio...

  • Page 16: Product Codes

    Product Codes This section describes the product codes used to identify products of the TM9100 mobile radio product line. The product codes of the TM9100 mobile radio product line have the General format: TMAabc–ddee where: a identifies the product category: A=accessory, B=radio body, C=control head, S=software feature b, c, dd and ee identify specific product features.

  • Page 17: Compliance Information

    Four external labels are attached to the bottom of the radio body: compliance information serial number and product code hot surface safety warning RF exposure safety warning Figure 1.2 Labels of the TM9100 product line IC: 737A-TMAH6C S/N 19061964 FCC ID: CASTMAH6C Contains intellectual property licenced TMAB32-H600 by Digital Voice Systems Inc, Motorola Inc and Tait Electronics Ltd.

  • Page 18: Introduction

    Specifications Table 1.1 shows the specifications for the TM9100 radios. The parameter Introduction values quoted are minimum values. These specifications are valid for the date of publication only. For up-to-date specifications, refer to the area on the TaitWorld website reserved for TM9100 products.
  • Page 19 300Hz to3 kHz (flat or with de-emphasis) Receive detect time < 3ms (From the time an RF signal is first present at the antenna to the time when the line BUSY DETECT changes state) TM9100 Service Manual Introduction © Tait Electronics Limited August 2005...
  • Page 20 <3% at 1kHz 60% modulation Transmit rise time <10ms (from the time the external PTT line is asserted to the time when the RF output power reaches 90% of its final value) Introduction TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 21 7.6A • H7 band 3.5A 4.3A 5.0A 7.6A 25W radio: • B1 band 1.1A 2.0A 2.9A 4.4A • H5 band 2.3A 3.3A 5.1A • H6 band 1.2A 2.3A 3.4A 5.2A TM9100 Service Manual Introduction © Tait Electronics Limited August 2005...
  • Page 22 Introduction TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 23: Mechanical Design

    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. TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 24 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 25 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) TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 26 25W radio. The grooves at the bottom of the 50W/40W radio are deeper than those of the 25W radio. For additional heat dissipation, the 50W/40W radio has an additional L-shaped gap pad between the chassis and the main board. Description TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 27 (50W/40W radio only) digital board hexagonal nut internal options connector lock washer auxiliary connector RF connector inner foam D-range seal main board 1& heat-transfer block control-head connector outer foam seal TM9100 Service Manual Description © Tait Electronics Limited August 2005...

  • Page 28: Description

    Description TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 29: Control Head

    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 TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 30 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 31 (x2) short light pipe long light pipe space-frame speaker clamp speaker LCD assembly main keypad power keypad concealed microphone front panel assembly 1& knob for volume-control potentiometer 1& 3451z_02 TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 32 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 33: User Interface

    Figure 2.6 shows the controls and indicators of the user interface. For more information refer to the TM9100 User’s Guide. Some keys have functions assigned to both short and long key presses. A short key press is less than one second, and a long key press is more than one second.
  • Page 34 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 35 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 TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 36 The maximum RF input level is +27dBm. Higher levels may damage the radio. Table 2.1 RF connector - pins and signals Pinout Signal Name Signal Type RF analog RF ground rear view Description TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 37 External speaker output. Balanced load Analog configuration. rear view SPK+ External speaker output. Balanced load Analog configuration. 25W radio 13V8_BATT DC power input for radio body and Power control head. rear view TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 38 Ground a. 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 39 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. TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 40 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 41: Microphone Connector

    Asynchronous serial port - Receive data. 3.3V CMOS MIC_GPIO1 General purpose digital input/output. Open collector out 3.3V CMOS in a. Can be switched or unswitched. For more information refer to “Connector Power Supply Options” on page TM9100 Service Manual Description © Tait Electronics Limited August 2005...

  • Page 42: Hardware And Software Architecture

    No separate circuit board is required for a dynamic microphone. Description TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 43 Figure 2.10 Hardware architecture of the main board TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 44 FPGA image, which includes the software-implemented RISC processor boot code control-head application code control-head application database Hardware and interface drivers are part of the boot code, the RISC code, and—in case of the main board—the DSP code. Description TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 45 DSP executing the DSP code for processing of digital signals in analog and digital mode the custom logic executing additional digital signal processing TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 46 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. Description TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 47: Operation In Receive Mode

    Once a call has been established however, both sig- naling and voice information are transported. The signaling infor- mation continues throughout the call for the purpose of maintain- ing the call and possibly sending data information. TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 48 Figure 2.12 Transceiver operation in analog mode Description TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 49 Figure 2.13 Transceiver operation in digital mode TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 50 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 51 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. TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 52 Description TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 53 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. TM9100 Service Manual Description © Tait Electronics Limited August 2005...

  • Page 54: Operation In Transmit Mode

    Once a call has been established however, both sig- naling and voice information are transported. The signaling infor- mation continues throughout the call for the purpose of maintain- ing the call and possibly sending data information. Description TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 55 (max. 12) and a voiced/unvoiced decision is made for each band. It also estimates the pitch of the segment of speech and determines the spectral amplitudes of the voiced frequency bands. TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 56 RF carrier. Four possible symbols can be transmitted. They are passed through a shaping filter defined by the APCO standard which limits the spectral occupancy on air. The four symbols are transmitted at pre-defined frequency deviations from the carrier. Description TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 57 VCO frequencies. The net result is that the loop “locks” to a programmed multiple of the reference frequency. TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 58 DC. Reference modulation is usually applied directly to the TCXO. In the system employed in the TM9100 radio, the frequency reference is generated by the FCL, which itself requires dual-point modulation injection to allow modulation down to DC. With another modulation point required in the RF PLL, this system therefore requires triple-point modulation.
  • 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. TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 60 The power ramp signal is supplied by a 13-bit DAC that is controlled by Power Ramp-Up custom logic. The ramp is generated using a look-up table in custom logic Description TM9100 Service Manual © Tait Electronics Limited August 2005...
  • 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. TM9100 Service Manual Description © Tait Electronics Limited August 2005...
  • Page 62 Description TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 63: Circuit Descriptions

    For up-to-date schematics refer to the relevant PCB information. Sample Schematics TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 64 Figure 3.1 Main board hardware architecture Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 65: Transmitter Circuitry

    10, 15, 25, and 50 watts (VHF), and 10, 15, 20, and 40 watts (UHF) for 50W/40W radios 1, 5, 12 and 25 watts (all bands) for 25W radios TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 66 Figure 3.2 Block diagram of the transmitter circuitry Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • 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. TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...

  • Page 68: Circuit Descriptions

    VCO or first LO frequency as well as the frequency of the first IF stage. The second LO frequency remains fixed.) The third IF stage is completely within the FPGA and is not accessible. Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 69 Figure 3.3 Block diagram of the receiver circuitry TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 70 C4FM modem (P25 modulation). FE AGC is controlled by an algorithm which monitors the RSSI and configures the DAC to turn on the FE attenuation via the receive pin diode of the PIN switch. Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 71: Frequency Synthesizer Circuitry

    25kHz reference frequency to give any desired frequency that is an integer multiple of 25kHz. There are some constraints imposed by the capabilities of the synthesizer hardware, especially the tuning range of the VCOs. TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 72 Figure 3.4 Block diagram of the frequency synthesizer circuitry Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 73 The resistors and capacitors of the filter affect both the switching time and the stability of the synthesizer; the values of these components have been carefully selected to give optimum control characteristics. TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 74 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.) Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 75: 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. TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...

  • Page 76: 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 Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 77 Figure 3.5 Block diagram of the CODEC and audio circuitry TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 78 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. Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 79 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. TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...

  • Page 80: 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. Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 81 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 TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 82 Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 83 (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. TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 84 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. Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 85 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 TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...

  • Page 86: 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. Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 87 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 TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...

  • Page 88: Digital Board

    Digital Board For a block diagram of the digital board, refer to Figure 3.10. Introduction The digital board is not serviceable at level-2 and is not described in this manual. Circuit Descriptions TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 89 DSP JTAG EMU0 analog FPGA JTAG TDO DSP JTAG TDO DSP JTAG EMU1 JTAG FPGA TDI JTAG DSP TDI clock +3V3 digital AGND asynchronous serial data Factory Connector synchronous serial data TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 90 “Connectors” on page 34. 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 91 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 TM9100 Service Manual Circuit Descriptions © Tait Electronics Limited August 2005...
  • Page 92 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 93: Chapter 2 Servicing The Radio

    TM9100mobiles Chapter 2 Servicing the Radio TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 94: Table Of Contents

    9.11 VCXO and CODEC Circuitry ....... 224 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 95: Table Of Contents

    15 Spare Parts ......... . .421 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 96 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 97: General Information

    TM9100 radios after their staff have been trained and their facilities confirmed as suitable. Existing ASCs need to apply for and be granted an endorsement for repairs of TM9100 radios. All ASCs with the necessary endorsements may carry out level-1 and level-2 repairs of these radios, whether under warranty or not.
  • Page 98 Associate technical notes relate to the repair of the radio but not the downloading of firmware; Tait-only technical notes relate to the firmware. The PCB information packs are discussed in more detail below. Table 4.1 Items relating to TM9100 radios that are available on the Technical Support website Public Associate Tait-only Item...
  • Page 99 All PCB informations are published on the Technical Support website. An additional source of information to service centers is the Tait Tait FOCUS Database FOCUS call-logging database. (This is accessible on the Technical Support website also.) All Customer-related technical issues regarding...
  • Page 100 Separate instruments may be used in place of the RF communications test set. These are an RF signal generator, audio signal generator, audio analyzer, RF power meter, and modulation meter. General Information TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 101 The following components are included in the service kit, but are used for the TP9100 portable radios only: TOPA-SV-006 RF cable TPA-SV-005 Battery eliminator (power supply adaptor) TPA-SV-007 Programming cable (RJ12 socket to TP9100) TPA-SV-011 Calibration cable (DB15 socket to TP9100) TM9100 Service Manual General Information © Tait Electronics Limited August 2005...

  • Page 102: General Information

    (connector not fitted) cover seal for options connector (connector fitted) In addition, ensure that the grommet sealing the aperture to the microphone connector of the control head is properly fitted. General Information TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 103 These benches have a dissipative rubber bench top, a conductive wrist strap, and a connection to the building earth. The material of the bench top must satisfy not only anti-static requirements but also the non-scratch requirements mentioned above. TM9100 Service Manual General Information © Tait Electronics Limited August 2005...
  • Page 104 The frequency ranges 156.8MHz±375kHz, 243MHz±5kHz, and 406.0 to 406.1MHz are reserved world- wide for use by distress beacons. Do not program transmitters to operate in any of these frequency bands. General Information TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 105: Test Equipment Setup

    AUDIO OUT switch to the “T /PTT” position. When ready to transmit, set the MODE This switch functions in the same way as the PTT switch on the microphone. TM9100 Service Manual General Information © Tait Electronics Limited August 2005...
  • Page 106 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 107: 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 BOM. It is particularly important for the tolerances to be the same. TM9100 Service Manual General Information © Tait Electronics Limited August 2005...

  • Page 108: 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 109 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 centers. TM9100 Service Manual General Information © Tait Electronics Limited August 2005...

  • Page 110: Smt Repair Techniques

    The inductors are SYN TOP part of the SMPS of the power-supply circuitry on the bottom-side of the board. Figure 4.5 on page 111 shows the locations of the components. General Information TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 111 (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) TM9100 Service Manual General Information © Tait Electronics Limited August 2005...
  • Page 112 (The character% must be entered within half a second of the letter v appearing.) If the character% is accepted, the character – is displayed in response, and the message Test Mode appears on the radio display. General Information TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 113 (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) TM9100 Service Manual General Information © Tait Electronics Limited August 2005...
  • Page 114 205 – Erase persistent data None Effectively resets the calibration parameters to their default values General Information TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 115 (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) TM9100 Service Manual General Information © Tait Electronics Limited August 2005...
  • Page 116 (a value from 0 to 1100 mV) 326 – Transmitter power None 326 x 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 117 (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) TM9100 Service Manual General Information © Tait Electronics Limited August 2005...
  • Page 118 (an integer between 00 and FF) 1011 – Microphone source 1011 x None Selects the microphone input where x is the required source source (0=microphone connector, 1=concealed microphone) General Information TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 119 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) TM9100 Service Manual General Information © Tait Electronics Limited August 2005...
  • Page 120 The supply voltage is less than the V1 threshold. The supply voltage is less than the V2 threshold and the radio has powered itself down. The radio will not respond to the reset command character ^. General Information TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 121: 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 TM9100 Service Manual General Information © Tait Electronics Limited August 2005...
  • Page 122 LCD will usually display Out of Lock. Continuous low-pitched While powered up — System error has occurred and radio might be inoperable; tone LCD usually displays E1 or E2. General Information TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 123: 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 421. TM9100 Service Manual Disassembly and Reassembly © Tait Electronics Limited August 2005...

  • Page 124: 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 125: 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 TM9100 Service Manual Disassembly and Reassembly © Tait Electronics Limited August 2005...
  • Page 126 This will release the heat-transfer block from the chassis. With the 50W/40W radio, the gap pad on the L-shaped ridge must be replaced each time the main board is removed. Disassembly and Reassembly TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 127 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) TM9100 Service Manual Disassembly and Reassembly © Tait Electronics Limited August 2005...

  • Page 128: Disassembly And Reassembly

    With the 50W/40W 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 129 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 TM9100 Service Manual Disassembly and Reassembly © Tait Electronics Limited August 2005...
  • Page 130 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 131: 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 TM9100 Service Manual Disassembly and Reassembly © Tait Electronics Limited August 2005...
  • Page 132 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 133 (refer to Figure 5.3 on page 127) Place the main-board assembly in position in the chassis Loosely screw in the two screws through the heat-transfer block by hand. TM9100 Service Manual Disassembly and Reassembly © Tait Electronics Limited August 2005...
  • Page 134 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 135: Disassembling And Reassembling The Control Head

    LCD assembly optional circuit board speaker terminals connector for speaker connector for control-head loom 3470z_01 TM9100 Service Manual Disassembly and Reassembly © Tait Electronics Limited August 2005...
  • Page 136 Figure 5.8 on page 135. Remove the LCD assembly , main keypad , and power keypad Disassembly and Reassembly TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 137 LCD assembly main keypad power keypad concealed microphone front panel assembly 1& knob for volume-control potentiometer 1& 3451z_02 TM9100 Service Manual Disassembly and Reassembly © Tait Electronics Limited August 2005...
  • Page 138 Disassembly and Reassembly TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 139: 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 TM9100 Service Manual Servicing Procedures © Tait Electronics Limited August 2005...
  • Page 140 “Disassembling and Reassembling the Control Head” on page 135. Obtain replacement parts from Spares kit. Then re- assemble the control head and re-attach it to the radio body. Servicing Procedures TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 141 If the main-board assembly was replaced or if the repair failed, re- assemble the radio as described in “Disassembly and Reassembly” on page 123. Conclude with the tasks of “Final Tasks” on page 147. TM9100 Service Manual Servicing Procedures © Tait Electronics Limited August 2005...
  • Page 142 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.
  • Page 143 If there is a fault in the user interface, repair the radio as described in “Fault Finding of Control Head” on page 397. If there is no fault, go to Task TM9100 Service Manual Servicing Procedures © Tait Electronics Limited August 2005...

  • Page 144: Servicing Procedures

    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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 145 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 371. TM9100 Service Manual Servicing Procedures © Tait Electronics Limited August 2005...
  • Page 146 “Final Tasks” on page 147. 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 147: Final Tasks

    Refer to the online help of the calibration application. TM9100 Service Manual Servicing Procedures © Tait Electronics Limited August 2005...
  • Page 148 If the radio had no software features enabled, go to Task 3. If the required file was supplied, go to Step Servicing Procedures TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 149 Level-1 service centers should return the faulty radio to the nearest ASC, and level-2 service centers should return the radio to the ISC. Supply details of the Customer, the fault and, if applicable, the attempted repair. TM9100 Service Manual Servicing Procedures © Tait Electronics Limited August 2005...
  • Page 150 +) of power connector on radio >5.00 V Distortion (at –47 dBm, 60% rated system deviation at 1kHz, with volume set to give 3 W into 16 Ω load) <3.00% Servicing Procedures TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 151 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 152 Servicing Procedures TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 153: Power Supply Fault Finding

    In this case carry out Task 4 Task 5. With the third fault, the external power required at a particular connector is no longer present. In this case carry out Task TM9100 Service Manual Power Supply Fault Finding © Tait Electronics Limited August 2005...
  • Page 154 If it does, go to Task 2. If it does not, the repair failed; replace the main-board assembly and go to “Final Tasks” on page 147. Power Supply Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 155 Figure 7.1 Important components of the power-supply circuitry (bottom side), including 3.3V regulator IC602 pin 7 pin 5 TM9100 Service Manual Power Supply Fault Finding © Tait Electronics Limited August 2005...
  • Page 156 If the voltage is correct, the digital board is faulty; replace the main- board assembly and go to “Final Tasks” on page 147. If the voltage is not correct, go to Step Power Supply Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 157 “Initial Tasks” on page 139. If the radio fails to power up, the repair failed; replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Power Supply Fault Finding © Tait Electronics Limited August 2005...

  • Page 158: Power Supply Fault Finding

    “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go to “Final Tasks” on page 147. Power Supply Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 159 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 TM9100 Service Manual Power Supply Fault Finding © Tait Electronics Limited August 2005...
  • Page 160 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 161 “Final Tasks” on page 147. If the fault could not be found or repairs failed, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Power Supply Fault Finding © Tait Electronics Limited August 2005...
  • Page 162 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. Power Supply Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 163: Interface Fault Finding

    Figure 8.3 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. TM9100 Service Manual Interface Fault Finding © Tait Electronics Limited August 2005...
  • Page 164 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 165 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the fault could not be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Interface Fault Finding © Tait Electronics Limited August 2005...
  • Page 166 Figure 8.4 Components of the interface circuitry (bottom side) Interface Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 167 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 TM9100 Service Manual Interface Fault Finding © Tait Electronics Limited August 2005...

  • Page 168: Interface Fault Finding

    Interface Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 169: 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 TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...

  • Page 170: Initial Checks

    H6 bands) or VHF (B1 band) radio. The product-code label on the radio body will identify the frequency band as described in “Product Codes” on page Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 171 Enter the CCTM command 72 to determine the lock status in receive mode. Note the response. lock status=xyz (x=RF PLL; y=FCL; z=LO2) (0=not in lock; 1=in lock) TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 172 If the lock status is 111, this implies normal operation. But if the lock error persists, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 173: 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 TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...

  • Page 174: Frequency Synthesizer Fault Finding

    “Final Tasks” on page 147. If the repair failed or no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 175 6 V regulator IC606 (top side) SYN TOP Pin 5 (5-pin device) (pin not used) B1 band Q512 Q508 Q5004 Measurement point on L506 H5/H6 bands Q512 Q508 Q506 Q507 TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 176 Figure 9.3 Synthesizer circuitry under the can (top side) FCL TOP SYN TOP CAN Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 177 “Final Tasks” on page 147. If the repair failed or no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 178 Figure 9.4 Synthesizer circuitry under the cans (bottom side) SYN BOT VCO BOT B1 band H5/H6 bands Q511 Q505 Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 179 “Final Tasks” on page 147. If the repair failed or no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 180 “Final Tasks” on page 147. If the repair failed or no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 181 “Final Tasks” on page 147. If the repair failed or no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 182 Figure 9.5 Test and measurement points for the synthesizer PLL and loop filter Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 183 Determine if the fault has been removed. If it has, go to “Final Tasks” on page 147. If it has not, the FCL is suspect; go to “Power Supply for FCL” on page 215. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 184 “Final Tasks” on page 147. If the repair failed or no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 185 “Final Tasks” on page 147. If the repair failed or no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 186 Figure 9.7 Synthesizer circuitry under the can (top side) SYN TOP B1 band Q512 Junction of C541 and R547 H5/H6 bands Q512 Junction of C541 and R547 Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 187: 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 TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 188 “Final Tasks” on page 147. If it is not, or if no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 189 “Final Tasks” on page 147. If it is not, or if no fault could be found, replace the main- board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 190 “Final Tasks” on page 147. If they are not, or if no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 191 “Final Tasks” on page 147. If they are not, or if no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 192 Minimum and maximum receive frequencies for the different UHF frequency bands Frequency band Receive frequency in MHz Minimum Maximum 337 ± 5 441 ± 5 378 ± 5 498 ± 5 Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 193 Figure 9.8 Measurement points for the VCO and related circuitry in UHF radios TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 194 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 Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 195 Figure 9.9 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 TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 196 147. If it has not, replace the main-board assembly and go to “Final Tasks” on page 147. Figure 9.10 Synthesizer circuitry under the VCO BOT (UHF radio, bottom side) Q5001 Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 197 147. If they are still not correct, go to Step Resolder R542 in position (see Figure 9.9). Replace the main- board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 198 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 Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 199 “Final Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 200 “Final Tasks” on page 147. If they are not, or if no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 201 Minimum and maximum transmit frequencies for the different UHF frequency bands Frequency band Transmit frequency in MHz Minimum Maximum 371 ± 5 492 ± 5 419 ± 5 545 ± 5 TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 202 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 Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 203 147. If they are still not correct, go to Step Resolder R542 in position (see Figure 9.9). Replace the main- board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 204 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 Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 205 “Final Tasks” on page 147. If they are not, or if no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 206 Figure 9.11. Table 9.4 Minimum and maximum frequencies for the different VHF frequency bands Frequency band Frequency in MHz Minimum Maximum 84 ± 5 200 ± 5 Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 207 Figure 9.11 Measurement points for the VCO and related circuitry in VHF radios TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 208 If the minimum frequency measured in Step 5 is correct, go to Task 29. If it is incorrect, go to Task 30. If no frequency is detected, go to Task Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 209 Figure 9.12 Synthesizer circuitry under the can (VHF radio, top side) SYN TOP Tx port Junction of C541 and R547 Rx port TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 210 147. If it has not, replace the main-board assembly and go to “Final Tasks” on page 147. Figure 9.13 Synthesizer circuitry under the can (VHF radio, bottom side) VCO BOT VCO BOT Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 211 147. If they are still not correct, go to Step Resolder R542 in position (see Figure 9.12). Replace the main- board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 212 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 213 “Final Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 214 “Final Tasks” on page 147. If they are not, or if no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 215: 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 9.14. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 216 Figure 9.14 Test and measurement points the FCL circuitry Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 217 Task 3 “Power Supply Fault Finding” on page 158. Figure 9.15 TCXO circuitry under the CDC TOP can VIA FOR MEASURING 3 V DC SUPPLY IF TOP CAN TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...

  • Page 218: Vcxo And Tcxo Outputs

    Confirm the removal of the fault and go to Task 36. If the repair failed, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 219 Figure 9.16 FCL circuitry under and adjacent the FCL TOP can VIA FOR MEASURING VCXO OUTPUT POSITION IN WHICH TO PLACE R527 FOR FAULT-DIAGNOSIS PURPOSES WHEN LOOP OSCILLATES TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 220 “Final Tasks” on page 147. Figure 9.17 FCL circuitry under the VCXO BOT can CAN FOR SYN BOT CAN DIGITAL BOARD CDC BOT CAN Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 221: Signals At Tp501 And Tp

    Confirm the removal of the fault and go to Task 38. If the repair failed, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 222 Confirm the removal of the fault, and go to Task 39. If the repair failed, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 223 If the signal is correct, the fault has been removed; go to “Final Tasks” on page 147. If the signal is not correct, the repair failed; replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...

  • Page 224: Vcxo And Codec Circuitry

    CODEC 2 circuitry; go to Task If the voltage levels are all correct (following earlier repairs), the fault has been removed; go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 225 Replace all cans. Repeat Task 40 to confirm the removal of the fault. If the repair failed, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Frequency Synthesizer Fault Finding © Tait Electronics Limited August 2005...
  • Page 226 Replace all cans. Repeat Task 40 to confirm the removal of the fault. If the repair failed, replace the main-board assembly and go to “Final Tasks” on page 147. Frequency Synthesizer Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 227: Receiver Fault Finding

    Set transmit frequency (x in hertz) and receive frequency (y in hertz) to specified values Read tuning voltage for front-end circuitry — displays voltage x in millivolts Read signal power at output of channel filter — displays power x (square of amplitude) TM9100 Service Manual Receiver Fault Finding © Tait Electronics Limited August 2005...

  • Page 228: Faulty Receiver Sensitivity

    “Excessive Loss of Sensitivity” on page 230 (sensitivity is very low) x < 500 000, go to “Moderate or Slight Loss of Sensitivity” on page 234 (sensitivity is low) Receiver Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 229 Figure 10.1 Receiver circuitry under the can (top side) IF TOP B1 band Q404 Measurement point H5/H6 bands Q404 Measurement point TM9100 Service Manual Receiver Fault Finding © Tait Electronics Limited August 2005...

  • Page 230: 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 158. Receiver Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 231 Figure 10.2 Receiver circuitry under the can (bottom side) B1 band H5/H6 bands Figure 10.3 Receiver circuitry under the can (top side) FE TOP Q401 Measurement point TM9100 Service Manual Receiver Fault Finding © Tait Electronics Limited August 2005...

  • Page 232: Receiver Fault Finding

    Recalibrate the receiver using the calibration application. Confirm the removal of the fault, and go to “Final Tasks” on page 147. If the repair failed go to Task Receiver Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 233 Recalibrate the receiver using the calibration application. Confirm the removal of the fault, and go to “Final Tasks” on page 147. If the repair failed go to Task TM9100 Service Manual Receiver Fault Finding © Tait Electronics Limited August 2005...

  • Page 234: Moderate Or Slight Loss Of Sensitivity

    147. 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 235 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 TM9100 Service Manual Receiver Fault Finding © Tait Electronics Limited August 2005...
  • Page 236 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. Receiver Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 237: Incorrect Rssi Readings

    2040 ± 40 2050 ± 40 AGC2 2200 ± 50 2220 ± 50 Receiver input power (dBm) Standard radio Trigger-base radio AGC0 –50 –44 –60 –54 AGC1 AGC2 –68 –62 TM9100 Service Manual Receiver Fault Finding © Tait Electronics Limited August 2005...
  • Page 238 147. 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 239: Faulty Radio Mute

    If the setting is “Noise Level”, implying that noise muting is selected, go to Task 15. If the setting is “Signal Strength”, implying that RSSI muting is selected, go to Task TM9100 Service Manual Receiver Fault Finding © Tait Electronics Limited August 2005...
  • Page 240 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) 5500 7300 2200 3700 Receiver Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 241 Tasks” on page 147. 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 TM9100 Service Manual Receiver Fault Finding © Tait Electronics Limited August 2005...

  • Page 242: High Receiver Distortion

    Task Check if the distortion fault has been removed. If it has, go to “Final Tasks” on page 147. If it has not, go to Task Receiver Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 243 Repair any fault, confirm the removal of the fault, and go to “Final Tasks” on page 147. If the repair failed or no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Receiver Fault Finding © Tait Electronics Limited August 2005...
  • Page 244 Receiver Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 245 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 246 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 (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 247 Avoid RF burns. Do not touch the antenna or the RF signal path on the circuit board while the transmitter is operating. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 248 TEST POINT +13V8 BATT SIGNAL TYPES SWITCH ANALOG AGND INTERFACE L310 L306 CIRCUITRY TEST POINT TEST POINT OTHER FRE- QUENCY TRANS- DRIVER EXCITER MITTER SYNTHE- CIRCUITRY SIZER Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 249 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...

  • Page 250: Transmitter Fault Finding (50W/40W Radios)

    Figure 11.2 Point for measuring the power supply to the PAs (B1 band) MEASUREMENT POINT ON L310 PAF TOP Q310 Q309 B1 BAND Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 251 Figure 11.3 Point for measuring the power supply to the PAs (H5 and H7 bands) MEASUREMENT POINT ON L310 PAF TOP L310 Q310 Q309 H5, H7 BANDS TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 252 Point for measuring the power supply to the PA driver (B1 band) POINT 2 ON R350 MEASUREMENT POINT ON R339 R339 R350 PAD TOP MEASUREMENT POINT ON L306 POINT 1 ON R350 Q306 B1 BAND Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 253 Point for measuring the power supply to the PA driver (H5 and H7 bands) POINT 2 ON R 350 MEASUREMENT POINT ON R339 R339 R350 PAD TOP MEASUREMENT POINT ON L306 POINT 1 ON R350 Q306 H5, H7 BANDS TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 254 Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go to “Final Tasks” on page 147. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 255 259. 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 158. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 256 Figure 11.6 Test points for checking the 9V supply, the forward and reverse RF power, and the inhibiting of the transmitter Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 257 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 258 Figure 11.7 Measurement and test points for diagnosing faults concerning the transmitter RF power Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 259 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 260 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 (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 261 326 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 262 Tasks” on page 147. If the repair failed or no fault could be found, replace the main-board assembly and go to “Final Tasks” on page 147. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 263 371. If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly, and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 264 PAF TOP DIRC TOP can (B1 band) Q310 Q309 D301 TEMPERATURE SENSOR MOUNTING POINT FOR TEST CAPACITOR B1 BAND TEST PAD Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 265 PAF TOP DIRC TOP can (H5 and H7 bands) Q310 Q309 D301 TEMPERATURE SENSOR MOUNTING POINT FOR TEST CAPACITOR H5, H7 BANDS TEST PAD TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 266 Task 33 — the PIN switch and LPF require checking. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 267 If the power and current are now correct at all three frequencies, the fault has been rectified; go to “Final Tasks” on page 147. If they are not, go to Task 26 “RF Signal Path” on page 293. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 268 38 ± 5W 48 ± 5W 33 ± 5W 16 ± 5W 17 ± 5W 21 ± 5W 25 ± 5W 32 ± 5W 40 ± 5W Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 269 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 270 Figure 11.10 Measurement and test points for diagnosing faults in the biasing of the PAs and PA driver Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 271 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 272 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 Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 273 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 274 “Final Tasks” on page 147. If the repair failed or Q310 itself is faulty, replace the main- board assembly and go to “Final Tasks” on page 147. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 275 IC301 AND PAs B1 BAND VIA TO PIN 14 OF IC301 VIA TO GATE OF Q309 VIA TO PIN 8 OF IC301 VIA TO GATE OF Q310 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 276 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 (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 277 “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 278 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 (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 279 “Final Tasks” on page 147. If the repair failed or Q309 itself is faulty, replace the main- board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 280 “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 281 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 371. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 282 If the voltage is correct, replace Q306; confirm the removal of the fault and go to “Final Tasks” on page 147. If it is not, go to Task Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 283 Figure 11.15 PA driver circuitry under the can (B1 band) PAD TOP PAD TOP COMPONENTS C310, R324 AND R327 R327 C310 R324 Q306 GATE OF Q306 B1 BAND TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 284 Figure 11.16 PA driver circuitry under the can (H5 and H7 bands) PAD TOP COMPONENTS C310, R324 AND R327 PAD TOP R324 C310 Q306 GATE OF Q306 H5, H7 BANDS Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 285 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 371. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 286 Figure 11.17 Circuitry under the DIRC TOP R3035 R383 B1 BAND H5, H7 BANDS Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 287 LPF or both are suspect; go to Task 33. If there is a fault, go to Step In the buffer amplifiers, check R340 and R341 (see Figure 11.11, Figure 11.18 Figure 11.19). TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 288 Figure 11.18 Components of concern on the bottom-side of the main board (B1 band) COPPER PLATE VCO BOT CAN C319 R396 D311 B1 BAND NB BOT CAN D TX INH TEST POINT Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 289 Figure 11.19 Components of concern on the bottom-side of the main board (H5 and H7 bands) COPPER PLATE VCO BOT CAN R396 R340 H5, H7 BANDS TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 290 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 291 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 292 AT C3509 AT C3505 TEST SET FRE- DIREC- QUENCY TIONAL SYNTHE- COUPLER SIZER RECEIVER SWITCH TEST CAPACITOR Ω TEST LEAD TO TEST SET RF CON- NECTOR Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 293 Figure 11.22). If C3500 is not faulty, go to “Frequency Synthesizer Fault Finding” on page 169. If C3500 is faulty, replace it and return to Step TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 294 OUTPUT OF STAGE 2 OF EXCITER AT C3509 Q3505 R3525 C3509 B1 BAND FCL TOP CAN OUTPUT OF STAGE 1 OF EXCITER AT C3505 SYNTHESIZER OUTPUT AT C3500 Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 295 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 296 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 Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 297 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 TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 298 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 299 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 300 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 301 “Final Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 302 Figure 11.23 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 (B1 band) Q310 Q306 Q309 B1 BAND PAF TOP CAN PAD TOP CAN Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 303 Figure 11.24 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 (H5 and H7 bands) Q310 Q306 Q309 H5, H7 BANDS PAF TOP CAN PAD TOP CAN TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 304 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 (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 305 Figure 11.25 Circuitry under the can, and the points for attaching the test lead and test DIRC TOP capacitor (B1 band) MOUNTING POINT FOR TEST CAPACITOR TEST PAD B1 BAND TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 306 DIRC TOP capacitor (H5 and H7 bands) MOUNTING POINT FOR TEST CAPACITOR TEST PAD H5, H7 BANDS Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 307 “Final Tasks” on page 147. If it is not, the repair failed; replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 308 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 (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 309 PIN TOP TEST PAD TEST PAD MOUNTING POINT FOR TEST CAPACITOR D307 D3507 B1 BAND H5, H7 BANDS TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 310 “Final Tasks” on page 147. If it is not, the repair failed; replace the main-board assembly and go to “Final Tasks” on page 147. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 311 Figure 11.28 Components of concern on the bottom-side of the main board (B1 band) COPPER PLATE VCO BOT CAN B1 BAND NB BOT CAN TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 312 Figure 11.29 Components of concern on the bottom-side of the main board (H5 and H7 bands) COPPER PLATE VCO BOT CAN R3000 H5, H7 BANDS Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 313 Figure 11.30 Circuitry under the LPF TOP B1 BAND H5, H7 BANDS TM9100 Service Manual Transmitter Fault Finding (50W/40W Radios) © Tait Electronics Limited August 2005...
  • Page 314 (H5, H7), the fault has been rectified; go to “Final Tasks” on page 147. If it does not, the repair failed; replace the main-board assembly and go to “Final Tasks” on page 147. Transmitter Fault Finding (50W/40W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 315 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 TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 316 Can Replacement This applies to the B1, H5 and H6 bands. For certain other bands the transmitter will not operate correctly unless all the cans are fitted. Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 317 Avoid RF burns. Do not touch the antenna or the RF signal path on the circuit board while the transmitter is operating. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 318 TEST POINT +13V8 BATT SIGNAL TYPES SWITCH ANALOG AGND INTERFACE L310 L306 CIRCUITRY TEST POINT TEST POINT OTHER FRE- QUENCY TRANS- DRIVER EXCITER MITTER SYNTHE- CIRCUITRY SIZER Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 319 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 TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...

  • Page 320: Transmitter Fault Finding (25W Radios)

    Figure 12.2 Point for measuring the power supply to the PAs B1 BAND MEASUREMENT POINT ON L310 (B1 BAND SIMILAR) H5, H6 BANDS Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 321 POINT ON R339 POINT ON L306 R324 C310 POINT 1 ON R350 POINT 2 ON R350 H5, H6 BANDS MEASUREMENT POINT ON R339 MEASUREMENT POINT ON L306 TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 322 326. 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 158. Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 323 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 TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 324 Table 12.3 Voltages in millivolts corresponding to nominal forward and reverse powers Frequency band Forward power (318 command) Reverse power (319 command) 1100 to 2000 < 500 2500 to 3500 < 1000 2800 to 3900 < 1000 Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 325 Figure 12.5 Measurement and test points for diagnosing faults concerning the transmitter RF power TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 326 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 Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 327 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 TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 328 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 Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 329 371. If a fault is found, repair it, confirm the removal of the fault, and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 330 PA circuitry under the can and part of the directional coupler under the PAF TOP DIRC TOP can (B1 band) Temperature sensor Mounting point for test capacitor Test pad Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 331 PAF TOP DIRC TOP can (H5 and H6 bands) Temperature sensor Mounting point for test capacitor Test pad TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 332 Task 31 — the PIN switch and LPF require checking. Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 333 If the power and current are now correct at all three frequencies, the fault has been rectified; go to “Final Tasks” on page 147. If they are not, go to Task 25 “RF Signal Path” on page 355. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 334 29 ± 5W 34 ± 5W 29 ± 5W 5 ± 5W 12 ± 5W 27 ± 5W 13 ± 5W 19 ± 5W 28 ± 5W Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 335 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 TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 336 Figure 12.8 Measurement and test points for diagnosing faults in the biasing of the PAs and PA driver Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 337 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 TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 338 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 Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 339 “Final Tasks” on page 147. If the repair failed or Q310 itself is faulty, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 340 VIA TO PIN 14 OF IC301 VIA TO GATE OF Q309 VIA TO PIN 8 OF IC301 VIA TO GATE OF Q310 H5, H6 BANDS PAF TOP Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 341 “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 342 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 (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 343 “Final Tasks” on page 147. If the repair failed or Q309 itself is faulty, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 344 “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go to “Final Tasks” on page 147. Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 345 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 371. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 346 If the voltage is correct, replace Q306; confirm the removal of the fault and go to “Final Tasks” on page 147. If it is not, go to Task Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 347 Figure 12.11 PA driver circuitry under the PAD TOP COMPONENTS C310, R324, R327 GATE OF Q306 B1 BAND COMPONENTS C310, R324, R327 GATE OF Q306 H5, H6 BANDS TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 348 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 371. Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 349 Figure 12.12 Circuitry under the DIRC TOP B1 band H5/H6 bands TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 350 12.13), and then go to Step Repair any fault revealed by the above checks. Replace IC303 if none of the other components is faulty (see Figure 12.9). Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 351 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 352 Figure 12.13 Components of concern on the bottom-side of the main board B1 band H5/H6 bands Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 353 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 354 DRAIN OF Q306 AT C313 TEST SET FRE- DIREC- QUENCY TIONAL SYNTHE- COUPLER SIZER RECEIVER SWITCH TEST CAPACITOR Ω TEST LEAD TO TEST SET RF CON- NECTOR Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 355 Figure 12.15). If C300 is not faulty, go to “Frequency Synthesizer Fault Finding” on page 169. If C300 is faulty, replace it and return to Step TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 356 B1 BAND BUFFER OUTPUT AT C313 SYNTHESIZER OUTPUT AT C300 EXCITER OUTPUT AT C301 DRIVER OUTPUT H5, H6 BANDS BUFFER OUTPUT AT C313 SYNTHESIZER OUTPUT AT C300 Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 357 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 TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 358 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 359 “Final Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 360 Figure 12.16 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 B1 BAND PAF TOP CAN PAD TOP CAN H5, H6 BANDS Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 361 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 TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 362 DIRC TOP capacitor B1 band H5/H6 bands Mounting point for test capacitor Test pad Test pad Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 363 “Final Tasks” on page 147. If it is not, the repair failed; replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 364 PIN switch is suspect; go to Task Remove the test lead and test capacitor, resolder the blocking capacitors in position, and go to Task Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 365 PIN TOP B1 band H5/H6 bands Test pad Test pad Mounting point for test capacitor TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 366 “Final Tasks” on page 147. If it is not, the repair failed: replace the main-board assembly and go to “Final Tasks” on page 147. Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 367 Figure 12.19 Components of concern on the bottom-side of the main board COPPER PLATE VCO BOT CAN NB BOT CAN B1 BAND COPPER PLATE VCO BOT CAN H5, H6 BANDS TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 368 Figure 12.20 Circuitry under the can (top side) LPF TOP B1 band H5/H6 bands Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 369 “Final Tasks” on page 147. If it does not, the repair failed; replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual Transmitter Fault Finding (25W Radios) © Tait Electronics Limited August 2005...
  • Page 370 Transmitter Fault Finding (25W Radios) TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 371: 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 TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...
  • Page 372 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 158. CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 373 Figure 13.1 Power-supply circuitry for the CODEC and audio circuitry under the CDC BOT LO2 BOT CAN CAN FOR DIGITAL BOARD TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...
  • Page 374 “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. CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 375: 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) TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...

  • Page 376: Codec And Audio Fault Finding

    5. If they are not, check the programming and test set-up; otherwise the digital board is faulty; replace the main-board assembly and go to “Final Tasks” on page 147. CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 377 “Final Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...
  • Page 378 Figure 13.3 Circuitry under the can, and adjacent interface circuitry CDC TOP CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 379 “Final Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...
  • Page 380 Figure 13.4 Circuitry under the CDC BOT CDC AUD TAP OUT JUNCTION OF R218 AND IC204 LO2 BOT CAN CAN FOR DIGITAL BOARD CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 381 “Final Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...

  • Page 382: No Speaker Audio At Auxiliary Connector

    These tasks need to be followed by those of “Faulty Modulation Using Auxiliary Connector” on page 394 if there is also a fault with the transmit modulation using the auxiliary connector. CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 383 Task 15 “Faulty Modulation Using Auxiliary Connector” on page 394. If there is no other fault, go to “Final Tasks” on page 147. TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...
  • Page 384 Figure 13.6 Circuitry in the vicinity of the auxiliary connector (bottom side) AUXILIARY CONNECTOR SK101 CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 385 “Faulty Modulation Using Auxiliary Connector” on page 394. If there is no other fault, go to “Final Tasks” on page 147. TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...
  • Page 386 Figure 13.7 Circuitry under the CDC BOT CAN FOR DIGITAL BOARD LO2 BOT CAN JUNCTION OF R224 AND IC204 CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 387: Faulty Receiver

    “Final Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...
  • Page 388 Figure 13.8 Circuitry in the vicinity of the CDC TOP B1 band Junction of C708 and C732 H5/H6 bands Junction of C708 and C732 CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 389 “Receiver Fault Finding” on page 227. Either the digital board or CODEC 1 (IC204) is faulty; replace the main-board assembly and go to “Final Tasks” on page 147. TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...

  • Page 390: 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 391 Figure 13.9 Circuitry in under the CDC BOT LO2 BOT CAN CAN FOR DIGITAL BOARD TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...
  • Page 392 “Final Tasks” on page 147. If the repair failed or the fault could not be found, replace the main-board assembly and go to “Final Tasks” on page 147. CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 393 Figure 13.10 Circuitry under the CDC TOP JUNCTION OF R229 AND R232 ITF AUD TAP IN JUNCTION OF R237 AND R241 TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...

  • Page 394: Faulty Modulation Using Auxiliary Connector

    Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 395 Confirm the removal of the fault and go to “Final Tasks” on page 147. If the repair failed, replace the main-board assembly and go “Final Tasks” on page 147. TM9100 Service Manual CODEC and Audio Fault Finding © Tait Electronics Limited August 2005...
  • Page 396 CODEC and Audio Fault Finding TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 397 If the repair fails or no fault could be found, replace the control-head board. After completing the repair, carry out the tasks in “Final Tasks” on page 147. TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...

  • Page 398: 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 399 1017 – Audio amplifier gain 1017 x none sets the audio amplifier gain (4 levels) where x is the gain (0 to 3) TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...

  • Page 400: Power Supply Faulty

    A fault in the control head can cause the radio body to reduce the switched 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 401 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 TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...

  • Page 402: Fault Finding Of Control Head

    If the LCD display is 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 403 FPGA and the LCD connector. If necessary, replace the corresponding 100Ω resistor R4 to R8. Figure 14.4 PCB layout of the LCD circuitry top side TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...

  • Page 404: 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 TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 405: 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. TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...

  • Page 406: Function Key Leds Or Status Leds Faulty

    Send CCTM command 1001 0 1 to activate the LED of the F1 key. Send CCTM command 1002 3 to set the LED intensity level to high. Fault Finding of Control Head TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 407 Figure 14.6 PCB layout of the function key LED and status LED circuitry top side top side bottom side bottom side bottom side TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...

  • Page 408: Keypad Backlighting Faulty

    If all LEDs are faulty or the intensity is 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 409 Check the resistors R607, 611, and R613 for shorted or open circuits. 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 TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...
  • Page 410 Retest switch. 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 411 Figure 14.10 PCB layout of the power on/off key circuitry top side bottom side TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...
  • Page 412 Use isopropyl alcohol and a soft lens-cleaning cloth to clean the pad of the tact switch. Visually inspect both tact switches (A and B) of a key for short- circuits. Repair if necessary. Fault Finding of Control Head TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 413 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 TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...
  • Page 414 (SPK+) and pin 17 (SPK–) of the control-head connector J103. Inspect E105 and E106. Replace the speaker. If there is still a fault, go to “Volume Control Faulty” on page 416. Fault Finding of Control Head TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 415 Figure 14.14 PCB layout of the speaker circuitry top side bottom side TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...

  • Page 416: Volume Control Faulty

    Full volume: reading 255 (3.3V) 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 417 Figure 14.16 PCB layout of the volume control circuitry top side bottom side TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...

  • Page 418: 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 419 Figure 14.18 PCB layout of PTT circuitry top side bottom side TM9100 Service Manual Fault Finding of Control Head © Tait Electronics Limited August 2005...
  • Page 420 Fault Finding of Control Head TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 421: Spare Parts

    This section lists all serviceable parts (except PCB components) of the Introduction radio body (Figure 15.1, Figure 15.2, and Table 15.1) control head (Figure 15.3 Table 15.2) Figure 15.1 Spare parts of the radio body (sheet 1 of 2) TM9100 Service Manual Spare Parts © Tait Electronics Limited August 2005...
  • Page 422 Figure 15.2 Spare parts of the radio body (sheet 2 of 2) 1& 3641z_01 Spare Parts TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 423 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). TM9100 Service Manual Spare Parts © Tait Electronics Limited August 2005...
  • Page 424 Figure 15.3 Spare parts of the control head 1& 3451z_02 Spare Parts TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 425 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. a. Spares kit TMAA22-97 contains an assembled control head without control-head board, concealed microphone and LED assembly. TM9100 Service Manual Spare Parts © Tait Electronics Limited August 2005...

  • Page 426: Spare Parts

    Spare Parts TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 427: Chapter 3 Accessories

    TM9100 mobiles Chapter 3 Accessories TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 428 21.1 Installation ..........453 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 429 24.2 Operation ..........479 24.3 PCB Information (PCB IPN 220-01418-02A) ....481 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 430 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 431 Select the required channel or group. Check that the channel is clear. If the green LED is glowing, the channel is busy and you may not be able to transmit. TM9100 Service Manual TMAA02-08 Keypad Microphone © Tait Electronics Limited August 2005...
  • Page 432 When the called party responds, lift the microphone off the microphone clip. Hold the microphone about 5cm (2 inches) from your mouth and press the PTT key to transmit. TMAA02-08 Keypad Microphone TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 433: Installing The Microphone

    Install the microphone clip in the most convenient location for the radio 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. TM9100 Service Manual TMAA02-08 Keypad Microphone © Tait Electronics Limited August 2005...

  • Page 434: Radio Programming

    The micro-processor performs the keypad scanning using eight GPIO lines. When a valid keypress is detected, a serial command is sent from the microphone. TMAA02-08 Keypad Microphone TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 435 Res 0603 180e 1/16w ± 5% 038-13180-00 Res 0603 180e 1/16w ± 5% 038-10000-00 Res 0603 Zero 0hm 1/16w ± 5% 038-14120-10 Res 0603 1K2 1% 038-13470-00 Res 0603 470e 1/16w +-5% TM9100 Service Manual TMAA02-08 Keypad Microphone © Tait Electronics Limited August 2005...

  • Page 436: Tmaa02-08 Keypad Microphone

    1J12 TP17 TP16 1J13 1J12 TP15 1J12 TP14 1K12 TP13 TP12 1K12 TP11 TP10 1K12 1F11 1D5 1B5 1E5 1G5 1F5 1F5 1E5 1G5 1D5 1B5 1F11 1E12 TMAA02-08 Keypad Microphone TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 437 16.6.3 Keypad Microphone Board Layout IPN 226-00145-04 (top side) IPN 226-00145-04 (bottom side) TM9100 Service Manual TMAA02-08 Keypad Microphone © Tait Electronics Limited August 2005...
  • Page 438 16.6.4 Keypad Microphone Board Circuit Diagram TMAA02-08 Keypad Microphone TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 439: 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 TM9100 Service Manual TMAA03-02 Security Bracket © Tait Electronics Limited August 2005...

  • Page 440: Installation Planning

    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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 441 To replace the radio in a security bracket, first follow the steps in “Removing a Radio from the Security Bracket” on page 441, and then follow from step 2 in “Installing the Security Bracket and Radio” on page 440. TM9100 Service Manual TMAA03-02 Security Bracket © Tait Electronics Limited August 2005...
  • Page 442 (for attaching short mounting rails to TM8100 radio) Security Crdl Mtg Tall TM8 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) TMAA03-02 Security Bracket TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 443: 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. TM9100 Service Manual TMAA04-05 Ignition Sense Kit © Tait Electronics Limited August 2005...
  • Page 444 TMAA04-05 Ignition Sense Kit TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 445: 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. TM9100 Service Manual TMAA10-01 Desktop Microphone © Tait Electronics Limited August 2005...
  • Page 446 — — not connected — — not connected MIC_PTT yellow MIC_AUD audio from the microphone AGND bare analog ground — — not connected — — not connected TMAA10-01 Desktop Microphone TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 447 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. TM9100 Service Manual TMAA10-01 Desktop Microphone © Tait Electronics Limited August 2005...
  • Page 448 TMAA10-01 Desktop Microphone TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 449: 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 TM9100 Service Manual TMAA10-02 Handset © Tait Electronics Limited August 2005...
  • Page 450 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 451 Table 20.4 Handset settings in the Programmable I/O form Direction Label Action Active Debounce Signal State Mirrored To CH_GPIO1 Input None Force Audio PA Off High None None TM9100 Service Manual TMAA10-02 Handset © Tait Electronics Limited August 2005...
  • Page 452 — — — not connected CH_GPIO1 3 blue programmable line controlling private mode Figure 20.2 Handset to radio interface TMAA10-02 Handset TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 453: Tmaa10-03 And Tmaa10-06 High-Power Remote Speakers

    “Power Connector Wiring” procedure. Important Check that the speaker cable is protected from engine heat, sharp edges and from being pinched or crushed. TM9100 Service Manual TMAA10-03 and TMAA10-06 High-Power Remote Speakers © Tait Electronics Limited August 2005...
  • Page 454 Power connector wiring of the TMAA10-06 remote speaker speaker – (to pin 2) +13.8V (red) remote power speaker cable connector ground (black) speaker + (to pin 3) TMAA10-03 and TMAA10-06 High-Power Remote Speakers TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 455 Route the remote microphone cable so as not to distract the driver. Mount the remote microphone in the chosen location and check that the microphone and cable are clear of all the usual movements performed by the user. TM9100 Service Manual TMAA10-04 Remote PTT Kit © Tait Electronics Limited August 2005...
  • Page 456 Direction Label Action Active 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 TMAA10-04 Remote PTT Kit TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 457 PTT is used, then CH_MIC_AUD is selected. Test points for all other auxiliary connections are provided on the auxiliary connector plug PCB to facilitate the connection of other devices or signals e.g ignition switch signal. TM9100 Service Manual TMAA10-04 Remote PTT Kit © Tait Electronics Limited August 2005...
  • Page 458 219-00305-00 cable 220-01711-01 Pcb HFree 236-00001-00 Sw Ptt W/Cbl & Strap 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 Kit TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 459 22.5.2 Pre-Amplifier Board Layout TM9100 Service Manual TMAA10-04 Remote PTT Kit © Tait Electronics Limited August 2005...

  • Page 460: Tmaa10-04 Remote Ptt Kit

    22.5.3 Pre-Amplifier Board Circuit Diagram TMAA10-04 Remote PTT Kit TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 461: 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 23.1 on page 462. TM9100 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited August 2005...
  • Page 462 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 463 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. TM9100 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited August 2005...
  • Page 464 Remote U-Bracket socket facing downwards (U-bracket below control head, as in Figure 23.1). Orientation If the RJ45 socket is required to face upwards (control head hanging from Installing an Enhanced Remote Kit TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 465 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. TM9100 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited August 2005...

  • Page 466: Installing An Enhanced Remote Kit

    Squeeze the grommet and push the remaining corners into position. Check that the grommet is seated correctly in the cavity. Figure 23.2 Correct remote cable grommet seating microphone grommet control head Installing an Enhanced Remote Kit TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 467 Both control heads contain a circuit board with audio amplifiers and RS- 485 driver components. Figure 23.3 Block diagram of remote control-head installation TM9100 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited August 2005...
  • Page 468 219-02882-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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 469 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. TM9100 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited August 2005...

  • Page 470: Parts List

    Res 0603 10k 1/16w +-5% R609 038-15100-00 Res 0603 10k 1/16w +-5% E100 057-10081-06 Ind 1806 Blm41p750s Emi Supr R611 038-15100-00 Res 0603 10k 1/16w +-5% Installing an Enhanced Remote Kit TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 471 C733 R300 U700 C734 R301 C735 R320 R321 D100 1E4 1F4 R401 1G10 D101 1F4 1E4 R402 1G10 D102 1F4 1E4 R410 D103 1E5 1F5 R411 TM9100 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited August 2005...

  • Page 472: Board Layout

    Board Layout IPN 220-01721-02 Installing an Enhanced Remote Kit TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 473 Circuit Diagram TM9100 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited August 2005...
  • Page 474 Circuit R103 R920 R104 R921 C101 R930 C102 R932 C103 C203 1E5 1E3 1A4 C207 C209 R203 C213 R207 R209 R213 R900 R901 R910 R911 R912 Installing an Enhanced Remote Kit TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 475: Table Of Contents

    Board Layout IPN 220-01720-01 TM9100 Service Manual Installing an Enhanced Remote Kit © Tait Electronics Limited August 2005...
  • Page 476 Circuit Diagram Installing an Enhanced Remote Kit TM9100 Service Manual © Tait Electronics Limited August 2005...

  • Page 477: Test Setup

    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 478 (to radio connector TP9100 connector of test unit) radio (DB15) TMAA23-02 cable (50W/40W radios) DC power supply TMAA20-03 cable (25W radios) TPA-SV-005 battery eliminator (to DC power supply) banana plugs TOPA-SV-024 Test Unit TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 479 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 480 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 TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 481 030-54270-20 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 24.3.2 PCB Layout top side bottom side TM9100 Service Manual TOPA-SV-024 Test Unit © Tait Electronics Limited August 2005...

  • Page 482: Topa-Sv-024 Test Unit

    24.3.3 Circuit Diagram TOPA-SV-024 Test Unit TM9100 Service Manual © Tait Electronics Limited August 2005...
  • Page 483 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 484: Limited Warranty

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

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