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TM8100/TM8200 Service Manual

Circuit Descriptions

81

© Tait Electronics Limited

November 2007

3.5

CODEC and Audio

Circuitry

Introduction

For a block diagram of the CODEC and audio circuitry, refer to

Figure 3.8

.

A/D and D/A
Conversion

The analog-to-digital conversion and digital-to-analog conversion is
performed by the devices IC203, IC204 and IC205.

Device IC203

IC203 is an eight-channel DAC that provides control of transmitter biasing,
front-end AGC, front-end tuning, and the output of analog RSSI signals.
The digital input data are fed to IC203 in synchronous serial form. Three of
the DAC channels are not used.

Device IC205

IC205 contains two CODECs. One is used by the FCL. The second is used
for auxiliary audio (input) and VCO modulation (output). The digital
section communicates with this device via a four-wire synchronous serial
interface.

Device IC204

IC204 contains base-band, voice-band and auxiliary CODECs and some
analog signal conditioning. The reference voltage (nominally 1.2V) for
these CODECs is provided internally by IC204 but is decoupled externally
by C228.

Base-band CODEC

The base-band CODEC handles the I and Q outputs (

IRXP

,

IRXN

,

QRXP

and

QRXN

balls) of the receiver’s second IF stage. The analog signals are

differential and biased at 1.2V nominally. The digital section communicates
with this CODEC via a two-wire synchronous serial interface (

BSDO

and

BSOFS

balls). The digital-to-analog conversion section of the base-band

CODEC is not used.

Voice-band CODEC

The voice-band CODEC handles the microphone and speaker signals.
The digital section communicates with this CODEC via a three-wire
synchronous serial interface (

VSFS

,

VSDO

and

VSDI

balls). IC204 also contains

voice-band filtering, pre-amplification and volume control.

Auxiliary CODEC

The auxiliary CODEC handles transmitter power control, receiver gain
control, auxiliary audio output and general analog monitoring functions.
The digital section communicates with this CODEC via a three-wire
synchronous serial interface (

ASFS

,

ASDI

and

ASDO

balls). The DAC used for

receiver gain control (

IDACOUT

ball) is a current output type. Current-to-

voltage conversion is performed by R238. The full-scale output of 1.2V is
amplified by IC201 to approximately 3V as required by the receiver.

Audio Circuitry

The audio circuitry performs four functions:

■

output of audio signal for speaker

■

input of microphone audio signal

■

input of auxiliary audio signal

■

output of auxiliary audio signal.

The sections of the circuitry concerned with these functions are described
in the following sections.

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Содержание TM8100 mobiles

Страница 1: ...TM8100 mobiles TM8200 mobiles Service Manual MMA 00005 05 Issue 5 November 2007...

Страница 2: ...have any enquiries regarding this document or any comments suggestions and notifications of errors please contact Technical Support Updates of Manual and Equipment In the interests of improving the p...

Страница 3: ...eiver Fault Finding 247 11 Transmitter Fault Finding 25W 267 12 Transmitter Fault Finding 25W 341 13 CODEC and Audio Fault Finding 399 14 Fault Finding of Control Head with Graphical Display 423 15 Fa...

Страница 4: ...05 Ignition Sense Kit 579 31 TMAA04 06 Linking and Interface Cable 581 32 TMAA10 01 Desktop Microphone 589 33 TMAA10 02 Handset 593 34 TMAA10 03 and TMAA10 06 High Power Remote Speakers 597 35 TMAA10...

Страница 5: ...ds are listed below the last two digits in the IPN represent the issue of the board The board information in this manual covers all production issue boards up to the issue listed below Main board A4 b...

Страница 6: ...33 xx TM8100 TM8200 Main Board H5 H6 25W boards after IPN 220 01697 05 MMA 00069 xx TM8100 TM8200 Main Board K5 30 35W MMA 00020 xx TM8100 TM8200 Main Board B1 50W MMA 00021 xx TM8100 TM8200 Main Boar...

Страница 7: ...and note The following paragraphs illustrate each type of alert and its associated symbol Warning This alert is used when there is a potential risk of death or serious injury Caution This alert is us...

Страница 8: ...uency Modulation CCTM Computer Controlled Test Mode CODEC Coder Decoder CSO Customer Service Organisation CTCSS Continuous Tone Controlled Subaudible Signaling DAC Digital to Analog Converter DC Direc...

Страница 9: ...Positive Negative Positive PSU Power Supply Unit PTT Press To Talk RISC Reduced Instruction Set Computing RSSI Received Signal Strength Indication SFE Software Feature Enabler SMA Sub Miniature Versio...

Страница 10: ...10 TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 11: ...onnectors 38 2 4 Hardware and Software Architecture 47 2 5 Operation in Receive Mode 52 2 6 Operation in Transmit Mode 57 3 Circuit Descriptions 65 3 1 Transmitter Circuitry 67 3 2 Receiver Circuitry...

Страница 12: ...12 TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 13: ...op remote monitoring and similar applications This manual includes the information required for servicing the radio and its accessories This section describes the different options available for frequ...

Страница 14: ...vice Manual Tait Electronics Limited November 2007 Figure 1 2 TM8100 mobile radios rear view 25W radio TM8115 radio with 2 digit display control head TM8110 radio with 1 digit display control head TM8...

Страница 15: ...by different main boards in the radio body The control heads are identical for all frequency bands 1 2 RF Output Power The radio bodies are available with 25W and 25W RF output power The two RF output...

Страница 16: ...ation kit including a U bracket Installation of the radio is described in the user s guide or the installation guide Optional installation kits are remote control head kit for remote installation of t...

Страница 17: ...apability 3 identifies the digital boards of the digital TM9100 product line c identifies the RF output power 2 25W 3 25W trigger base 4 30 to 59W 5 30 to 59W trigger base dd identifies the frequency...

Страница 18: ...trol head two RJ45 connectors 0T Tait TM8252 31 RJ45 control head for multi body two RJ45 connectors RS485 0T 1T 2T Tait TM8200 Tait TM8200 termination resistor in Tait TM8200 termination resistor out...

Страница 19: ...warning 1 6 Specifications For up to date specifications refer to the area on the TaitWorld website reserved for TM8100 and TM8200 products Figure 1 3 Labels of the TM8100 and TM8200 product lines Con...

Страница 20: ...20 Introduction TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 21: ...l Design Overview The radio consists of the following main components control head B radio body C The control head B clips firmly to the front face of the radio body C where a seal E provides IP54 cla...

Страница 22: ...ur screw bosses to attach the radio to the U bracket of the installation kit Internal Options Board Optional On the inside of the lid nine screw points are provided for mounting an internal options bo...

Страница 23: ...vember 2007 Figure 2 2 Components of the radio body B cover G chassis C screw M4x16 x4 H auxiliary connector bung D lid assembly I screws M4x16 x2 E screw M3x10 x5 J seal F main board assembly 1 gap p...

Страница 24: ...the leverage points for removing the control head from the radio body The sides of the chassis contain two of the four screw bosses to attach the radio to the U bracket of the installation kit For hea...

Страница 25: ...he rear of the radio body Figure 2 3 Components of the main board assembly B M3x10 screw x3 J D range screwlock fastener x2 C 25W radios M2 2x10 PT screw x2 25W radios K30x8 PT screw x2 1 power connec...

Страница 26: ...the auxiliary F power 1 and RF 1 connectors facing the rear of the radio are located on the bottom side of the main board The 25W radio has a black power connector 1 and the 25W radio has a white pow...

Страница 27: ...assembly with self adhesive coating and can be replaced for rebranding purposes Three clips on the rear side of the front panel assembly snap onto the space frame to hold the keypads 1 and 1 the LCD...

Страница 28: ...th to the microphone The hole is covered by the rubber seal to ensure that the control head remains sealed to IP54 standards For more information refer to TMAA02 07 Concealed Microphone on page 519 Sp...

Страница 29: ...ge D control head loom assembly with female female adapter E 3 x 10 PT screw x4 F control head board G space frame seal x2 H short light pipe I long light pipe J space frame 1 speaker clamp 1 speaker...

Страница 30: ...f the optional concealed microphone The side facing the front panel has the volume control potentiometer the microphone connector the indicator and backlight LEDs and the contacts for the keypads Cont...

Страница 31: ...o model number is attached to the front panel assembly with self adhesive coating and can be replaced for rebranding purposes Six clips on the space frame G snap into corresponding locations on the in...

Страница 32: ...ips into the six recesses inside the front panel assembly 1 The front side of the space frame holds the keypad with the four light pipes the LCD the speaker clamp1 and the speaker in place and at the...

Страница 33: ...ead loom with female female adapter C control head options board optional D 3 x 8 PT screw x3 E control head board F elastomeric strip x2 G space frame H speaker clamp I speaker J short light pipe 1 l...

Страница 34: ...e front panel with self adhesive coating and can be replaced for rebranding purposes The rear side of the front panel has four screw bosses to fasten the PCB bracket E Control Head Loom The control he...

Страница 35: ...n 35 Tait Electronics Limited November 2007 Figure 2 7 Components of the RJ45 control head B control head board E PCB bracket C control head loom with female female adapter F front panel D 3 x 8 PT sc...

Страница 36: ...rol Head Loom The programming connector at one end of the control head loom and a foam seal F are screwed to the front panel with a pair of lock nuts D When the programming connector is not in use the...

Страница 37: ...d 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 Figure 2 9 User interfaces scroll keys on off key volume control microphone...

Страница 38: ...n board and the internal connectors of the control head refer to the PCB information of the main boards and the control head board Figure 2 10 Connectors radio with graphical display control head Spea...

Страница 39: ...November 2007 Figure 2 11 Connectors of the radio body 25W radio control head connector provision for external options connector provision for additional connector power connector auxiliary connector...

Страница 40: ...ical display Figure 2 13 Connectors of the control head with 1 2 or 3 digit display front view rear view without adapter flange microphone connector control head connector front view microphone connec...

Страница 41: ...connectors for the 25W and 25W radios Important The speaker load configuration is balanced the speaker output lines must not be connected to ground Connecting a speaker output line to ground will caus...

Страница 42: ...sense input a Digital 3V3 CMOS 4 AUX_GPI3 General purpose digital input Programmable function With LK2 fitted GPI3 is a power sense input a Digital 3V3 CMOS 10 AUX_GPIO4 Programmable function and dir...

Страница 43: ...rnal options connector pins and signals Pinout Pin Signal Description Signal type 1 13V8_SWa Switched 13V8 supply Supply is switched off when the Radio Body is switched off Power 2 AUD_TAP_OUT Program...

Страница 44: ...log ground Ground 7 CH_RXD Asynchronous serial port Receive data Digital 3V3 CMOS 8 DGND Digital ground Ground 9 CH_ON_OFF Hardware power on software controlled power off input Active low Digital 10 V...

Страница 45: ...nput from microphone Also carries hookswitch signal Digital 5 MIC_AUD Fist microphone audio input Analog 6 AGND Analog ground Analog ground 7 MIC_RXD Asynchronous serial port Receive data 3 3V CMOS 8...

Страница 46: ...Signal type 1 PRG_RX_AUD Receive audio output Analog 2 PRG_TXD Asynchronous serial port Transmit data 3 3V CMOS 3 PRG_MIC_AUD Fist microphone audio input Analog 4 PRG_RXD Asynchronous serial port Rece...

Страница 47: ...board has an internal options connector which allows internal options boards to access a variety of discrete and programmable signals For more information refer to Internal Options Connector on page...

Страница 48: ...o Interface Digital Board RF Connector Power Connector Control Head Connector LPF 1 PIN Switch 1 Auxiliary Connector Internal Options Connector Main Board FPGA RISC Proc Serial Flash SRAM Flash Memory...

Страница 49: ...software modules are stored on the digital board of the main board FPGA image which includes the software implemented RISC processor and the custom logic the custom logic executes additional digital...

Страница 50: ...on the control head 3 Normal radio operation starts with the RISC processor executing the radio application code including application software the DSP executing the DSP code for processing of digita...

Страница 51: ...ftware which is part of the radio and control head application software Software Shutdown On shutdown the programming and calibration data is stored in the database and power is removed from the radio...

Страница 52: ...is illustrated in Figure 2 16 on page 53 For the K5 front end refer to These block diagrams show the hardware modules integrated with the software modules hardware transmitter receiver CODEC and audio...

Страница 53: ...TM8100 TM8200 Service Manual Description 53 Tait Electronics Limited November 2007 Figure 2 16 Transceiver operation...

Страница 54: ...nal frequency division of 2 so the second LO operates at 2 x IF1 64kHz The quadrature output from this mixer is fed to a pair of ADCs with high dynamic range where it is oversampled at 256kHz and fed...

Страница 55: ...a and fed via a single synchronous serial port to the DSP The stream is demultiplexed and the demodulation data used as an input for further audio processing Noise Squelch The noise squelch process re...

Страница 56: ...n in the order of 10dB relative to full scale in the receive path CODEC The combined audio and side tone signal is converted to analog form by a 16 bit DAC with integral anti alias filtering This is f...

Страница 57: ...e transceiver is illustrated in Figure 2 16 on page 53 These block diagrams show the hardware modules integrated with the software modules hardware transmitter receiver CODEC and audio RISC processor...

Страница 58: ...omatic Level Control The ALC follows and is used to effectively increase dynamic range by boosting the gain of the microphone pre amplifier under quiet conditions and reducing the gain under noisy aco...

Страница 59: ...es Note that patents are pending for several aspects of the synthesizer design Operation of Control Loop The RF PLL is a conventional integer N type design with frequency resolution of 25kHz 30kHz for...

Страница 60: ...ates a DC error signal A programmed offset is also added This error signal is converted to analog form and used to control the VCXO frequency and reduce the initial error Once settled the loop locks t...

Страница 61: ...nstants in the loop filter As a result settling to within 1kHz of the final value occurs in under 4ms In order to meet noise performance requirements the loop parameters are then switched to reduce th...

Страница 62: ...proximately 37dB of power gain The output of the frequency synthesizer is first buffered to reduce kick during power ramping The buffer output goes to a broad band exciter IC that produces approximate...

Страница 63: ...eady state power for the 30 35W K5 band radios 10dBm to approximately 25dB below steady state power for the 25W radios Power Ramp Up The power ramp signal is supplied by a 13 bit DAC that is controlle...

Страница 64: ...64 Description TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 65: ...oards The main board is divided into the following circuitry modules transmitter receiver frequency synthesizer including FCL CODEC and audio power supply interface digital board Figure 3 1 gives an o...

Страница 66: ...io Interface Digital Board RF Connector Power Connector Control Head Connector LPF 1 PIN Switch 1 Auxiliary Connector Internal Options Connector Main Board FPGA RISC Proc Serial Flash SRAM Flash Memor...

Страница 67: ...The exciter operates in full saturation thereby maintaining a constant output power independent of the varying input power level supplied by the synthesizer Power Amplifier The power amplifier compri...

Страница 68: ...aper and Level Shifter Crowbar Shaping Filter Tempera ture Sensor Buffer Amplifier TX RX RF Thermal Coupling OR Gate Switch TX INH 9V0 TX 13V8 BATT DIG TX INH DIG SYN EN SYN LOCK SYN TX LO Power Suppl...

Страница 69: ...to the gate of Q306 In this way the transmitter is protected against bad mismatches With the 30W 35W radio the power control loop processes the voltages from the forward and reverse power sensors in...

Страница 70: ...h front end is used First Mixer The first mixer of all bands except K5 is a standard diode ring mixer with SMD surface mount device baluns and a quadruple SMD diode For the bands between 66 and 174MHz...

Страница 71: ...RATURE DEMODULATOR BIAS NETWORK POWER SUPPLY CODEC AND AUDIO CIRCUITRY DIGITAL BOARD PLL TRANSMITTER FREQUENCY SYNTHESIZER MIXER RF SIGNAL TYPES ANALOGUE CLOCK DIGITAL ASYNCHRONOUS SERIAL DATA SYNCHRO...

Страница 72: ...72 Circuit Descriptions TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 3 4 Block diagram of the receiver circuitry B1 H5 H6 bands after PCB issue 05 and other bands...

Страница 73: ...nnector when an internal options board is fitted Automatic Gain Control The receiver has an AGC circuit to enable it to cover a large signal range Most of the circuit functions are implemented in the...

Страница 74: ...D modem Tait High Speed Data It enables THSD to maintain residual BER of 10 4 The front end AGC is controlled by an algorithm which monitors the RSSI and configures the DAC to turn on the front end at...

Страница 75: ...egulator IC provides good line regulation of the 9V supply and good load regulation Good regulation of the power supply line and load is essential for meeting the transient ACP requirements The regula...

Страница 76: ...COs Some variants of the synthesizer use two VCOs one for receive and one for transmit Synthesizers with two VCOs share the same tuning signal Only one VCO is switched on at a time and so the PLL IC w...

Страница 77: ...lifier PLL MOD VCO 2 VCO 1 Buffer Amplifiers and Coupler 5 V Switch TR Switch VCO UHF only 6V0 AGND 3V0 AN Power Supply CDC VCXO MOD SYN CDC FCL SYN CDC LFV CDC VCO MOD CODEC and Audio SYN TX LO SYN R...

Страница 78: ...of which the loop filter is the main factor The loop filter is an integrator built around an operational amplifier The resistors and capacitors of the filter affect both the switching time and the sta...

Страница 79: ...ss is implemented in hardware under software control in conjunction with use of the synthesized reference input The result is a transmit receive settling time of less than 4 5ms The switching time is...

Страница 80: ...Circuit Operation The VCXO is mixed with the TCXO output to create a nominal difference or offset frequency of 12kHz SYN CDC FCL In A4 band radios there is additional circuitry and the VCXO is mixed w...

Страница 81: ...the receiver s second IF stage The analog signals are differential and biased at 1 2V nominally The digital section communicates with this CODEC via a two wire synchronous serial interface BSDO and B...

Страница 82: ...CDC FCL Digital Board AGND 13V8 BATT 2V5 CDC 9V0 3V3 3V0 AN CDC RX AUD AUD ITF SPK AUD ITF SPK ITF RX BEEP IN ITF CH MIC AUD ITF AUX MIC AUD ITF VOL WIP DC CDC AUD TAP OUT CDC RSSI ITF AUD TAP IN CDC2...

Страница 83: ...ty of the amplifier at high frequencies When operational the output bias voltage for IC202 is approximately half the radio supply voltage When not operational the output becomes high impedance Control...

Страница 84: ...filter formed by IC201 pins 1 to 3 R219 R220 R221 R224 C206 C208 and C210 is a third order Butterworth type with a cut frequency of approximately 12kHz The output of the low pass filter is amplified b...

Страница 85: ...to the digital section which in turn provides the watchdog signal DIG WD KICK required by the supervisory circuit Internal Power Supplies There are eight internal power supplies one SMPS 3V3 four line...

Страница 86: ...Switch 3V3 2V5 Regulator 3 V Rx Switch PSU Super visor 13V8 Switch Reverse Polarity Protection 13V8 BATT 9V0 TX 9V0 3V0 AN 13V8 BATT 9V0 3V0 AN 3V3 2V5 CDC 3V0 AN 3V0 RX DIG RX EN DIG TX EN DIG SLP EN...

Страница 87: ...on desired Figure 3 10 shows a block diagram of the hardware links LK1 to LK4 The radio can be programmed to be either on or to return to its previous state when the power sense signal is removed For...

Страница 88: ...off AUX GPI3 2 6V high active ignition sense tolerant to 3 3V 5V and 12V LK1 out Input line must be active highb LK4 out IOP GPIO7 can be used as GPIO internal power sense LK1 out IOP GPIO7 0 7V off...

Страница 89: ...Link LK4 is required to connect the line to the power up circuitry This line is active high it is on when the level exceeds 2 6V and off when the level falls below 0 7V the line tolerates maximum inp...

Страница 90: ...if the primary power source voltage is outside the radio s operating range The combined switched current drawn by the internal options connector the auxiliary connector and the control head connector...

Страница 91: ...lue is approximately 18mA the inverse of the value of R761 The output configuration is open collector with a pull up to 3 3V by default Pull up options to 5V and 13 8V are also available On AUX GPIO4...

Страница 92: ...3V3 AGND DGND SPK SPK VOL WIP DC CH MIC AUD RX AUD CH ON OFF CH RXD CH TXD CH PTT CH GPIO1 CH SPI DI CH SPI DO CH SPI CLK CH LE RX AUD RX BEEP IN AUD TAP OUT AUD TAP IN AUX MIC AUD RSSI 13V8 SW IOP G...

Страница 93: ...static discharge protection is provided by a 470pF capacitor and by clamping diodes to ground and to 13 8V For example on AUX GPIO4 this consists of D713 and C725 The lines IOP GPIO1 to IOP GPIO7 are...

Страница 94: ...ND DIG CH SPI CLK DIG CH SPI DO ITF CH SPI DI DIG CH LE ITF CH GPI1 DIG CH GPO1 ITF CH PTT ITF CH HOOK ITF ON OFF ITF IOP GPIO1 7 DIG IOP TXD ITF IOP RXD ITF AUX GPI1 7 DIG AUX GPO4 7 DIG AUX TXD ITF...

Страница 95: ...ial EEPROM DGND AGND DIG CH SPI CLK DIG CH SPI DO ITF CH SPI DI DIG CH LE ITF CH GPI1 DIG CH GPO1 ITF CH PTT ITF CH HOOK ITF ON OFF ITF IOP GPIO1 7 DIG IOP TXD ITF IOP RXD ITF AUX GPI1 7 DIG AUX GPO4...

Страница 96: ...for function keys F1 and F4 keypad backlighting LEDs speaker Connectors The control head board includes the circuitry for the following connectors microphone connector RJ45 socket control head connec...

Страница 97: ...NC UART JTAG 3V3 Soldering Pads AGND DGND Concealed Microphone Speaker MIC MIC AGND Power Supply 3V3 1V5 1V5 3V3 13V8 CH RXD CH TXD CH GPIO1 CH PTT CH ON OFF 13V8 SPK SPK SPK SPK Speaker Leads Microph...

Страница 98: ...ine each from the FPGA which switch two transistors on MOSFET Q102 A temperature signal from the LCD module is converted to a digital signal by an analog digital converter U601 and processed by the FP...

Страница 99: ...oncealed microphone two control head options connectors for optional circuit board Protection circuitry is provided for the microphone connector For pinouts of the control head connector and the micro...

Страница 100: ...LK 3V3 13V8 SW CH ON OFF CH SPI DI CH LE CH SPI CLK 3V3 AGND DGND Contact made when key pressed Contact made when key pressed Speaker Leads SPK SPK 13V8 SW MIC AUD IN P1 MIC AUD OUT DGND AGND VOL WIP...

Страница 101: ...e been clocked in the latch line is driven low On this falling edge all the outputs LEDs and LCD segments are driven to their new state When the latch line is driven high the state of each key is latc...

Страница 102: ...nouts of the connectors refer to Connectors on page 38 Basic Circuitry The signals of the control head connector are directly connected to the telemetry connector The POWER ON OFF LED is supplied by t...

Страница 103: ...5 1 Removing and Mounting the Control Head 136 5 2 Disassembling the Radio Body 137 5 3 Reassembling the Radio Body 143 5 4 Disassembling and Reassembling the Control Head 147 6 Servicing Procedures...

Страница 104: ...wer 350 12 3 Biasing of PA Driver and PAs 360 12 4 RF Signal Path 379 13 CODEC and Audio Fault Finding 399 13 1 Power Supplies 400 13 2 Faulty Speaker Audio 402 13 3 No Speaker Audio at Auxiliary Conn...

Страница 105: ...Head with 1 2 or 3 Digit Display 447 15 1 Display Faulty but not LEDs 450 15 2 Some LEDs Faulty 451 15 3 All LEDs Faulty 452 15 4 Display and All LEDs Faulty 452 15 5 Some but not All Keys Faulty 453...

Страница 106: ...106 TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 107: ...ir Levels This manual covers level 1 and level 2 repairs of the radios Important The circuit boards in the radio are complex and must be serviced only by an Accredited Service Centre ASC See Accredita...

Страница 108: ...epairs on the radios whether the radio is under warranty or not If your service centre would like to apply for Accredited Service Centre ASC status please contact Tait Technical Support at the address...

Страница 109: ...sses to the Tait FOCUS call logging database Technical Support resolves any issue raised and informs the customer or service centre of the outcome All issues and solutions can be seen by all service c...

Страница 110: ...it should be noted that a hot air tool affords little control Even in skilled hands use of a hot air tool to remove cans will result in rapid uncontrolled rises in the temperature of components under...

Страница 111: ...anual You can generally order only the latest issue of a manual Table 4 1 Contents of service kit TMAA21 00 Product code Item TPA SV 006 Cable serial PC to RJ12 plug TMAA20 02 Cable RJ45 socket to DB9...

Страница 112: ...o satisfy the anti static requirements specified below In addition use a clear area of the bench when disassembling and re assembling the radio Compliance Issues Note The radio is designed to satisfy...

Страница 113: ...anti static measures when storing shipping or carrying a circuit board or its components To carry store or ship a circuit board use an anti static bag To carry store or ship a component use foil an a...

Страница 114: ...re the main board assembly in the chassis with the two external screws and one of the internal screws The heat transfer block must be secured to the main board The lid of the radio body may be left of...

Страница 115: ...espectively the switches of the test unit must be set as described below When programming or calibrating radios the switches have no effect although it is good practice to set the MODE switch to RX Se...

Страница 116: ...udio SINAD connector BNC transmit audio connector BNC computer connector RJ12 serial port DB9 speaker connector banana plugs AC input BNC audio monitor out BNC AUDIO IN HI BNC AUDIO OUT BNC RF in out...

Страница 117: ...a printed board assembly such as a control board quote the relevant product code see Product Codes on page 17 To replace a component on a PCB however use the IPN on the PCB to locate the correct PCB...

Страница 118: ...y important for tolerances to be the same When the replacement component arrives verify specifications again before installing the part Obtain Replacement Component To determine whether the required c...

Страница 119: ...the main board assembly are identified in Figure 4 3 and Figure 4 4 The figures also show the locations of the connectors on the board Figure 4 3 Shielding cans and connectors top side of main board a...

Страница 120: ...hnicians should refer to the documentation supplied with the tool for the correct procedures If the tool is not available a hot air tool may be used instead However technicians require training in the...

Страница 121: ...ndard techniques and these are discussed below Another issue of concern is the procedure for removing and installing cans A discussion of the issue concludes this section Non standard Procedures Do no...

Страница 122: ...imited November 2007 Figure 4 5 Locations of the capacitors C548 and C565 and the inductors L601 and L602 top side VHF board UHF board similar Note that other components may be fitted for C548 such as...

Страница 123: ...nary first select the settings for the communications port as follows 1 Open the terminal program In the case of HyperTerminal click Start Programs Accessories Communications HyperTerminal 2 In the te...

Страница 124: ...he speaker 74 x where x is the required state 0 stand by 1 on 2 mute None 110 Audio volume Sets the level of the audio volume 110 x where x defines the required level any integer from 0 to 255 None 13...

Страница 125: ...e character identifier and y is an eight digit version number 133 Hardware version Reads the product code of the radio body and the hardware version number 133 x y where x is the product code and y is...

Страница 126: ...essage with results of calibration attempt 334 Synthesizer power Switches the frequency synthesizer on or off via the DIG SYN EN line 334 x where x is the required state 0 off 1 on None 335 Synthesize...

Страница 127: ...er from 0 to 1023 114 x to set value where x is the required power setting an integer from 0 to 1023 None 304 Driver bias Sets or reads the clamp current at the gate of the PA driver 304 to read value...

Страница 128: ...for the first PA 331 to read value x where x is the DAC value of the bias voltage an integer from 0 to 255 331 x to set value where x is the DAC value of the required bias voltage any integer from 0 t...

Страница 129: ...the elements of the display on or off 1006 x where x is the required state 0 off 1 on None 1007 LCD temperature sensor Reads the output of the LCD temperature sensor 1007 x where x corresponds to the...

Страница 130: ...down and up again and place the radio in CCTM again C05 The radio has not responded within the specified time Re enter the CCTM command X04 The DSP is not responding Check the DSP pin connections If t...

Страница 131: ...the frequency band mean that the K5 frequency band may be further divided into 700MHz and 800MHz The frequency bands for TM8100 TM8200 radios are listed in Table 4 10 The relevant frequencies for the...

Страница 132: ...able 6 1 on page 160 Audible indications are provided in the form of different tones emitted from the speaker The information conveyed by the tones is given in Table 4 12 on page 133 Table 4 11 Visual...

Страница 133: ...accepted and radio is ready to use 3 After radio has been stunned Radio has been revived and is ready to use Two low pitched beeps While powered up Temperature of radio is high Two high pitched beeps...

Страница 134: ...134 General Information TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 135: ...body disassemble and reassemble the control heads General Important Before disassembling the radio disconnect the radio from any test equipment or power supply Disassemble only as much as necessary t...

Страница 136: ...portant When inserting the flat bladed screwdriver take care not to damage the control head seal 3 At either of the lever points insert a 3 16 inch 5mm flat bladed screwdriver between the control head...

Страница 137: ...ructions refer to Reassembling the Radio Body on page 143 Removing the Cover 1 At the upper edge of the lower screw bosses on both sides of the radio body insert a 1 8 inch 3mm flat bladed screwdriver...

Страница 138: ...using one of the tabs located at the bottom of the seal preferably by hand If necessary lift up the tap using the blade of a small flat bladed screwdriver Do not damage the seal with the screwdriver 3...

Страница 139: ...of the radio body B cover G chassis C screw M4x16 x4 H auxiliary connector bung D lid assembly I screws M4x16 x2 E screw M3x10 x5 J RF connector seal F main board assembly 1 gap pad 25W radio only Tor...

Страница 140: ...crews b securing the main board 1 to the heat transfer block F Note Make sure not to touch the thermal paste on the heat transfer block and the underside side of the main board If the thermal paste is...

Страница 141: ...30x8 PT screw x2 I power connector seal J power connector 1 gap pad 25W radio only D auxiliary connector 1 RF connector nut E inner foam D range seal 1 RF connector lock washer F heat transfer block 1...

Страница 142: ...r cap c if fitted Undo the two D range screwlock fasteners d 2 Undo up to nine screws h and remove the options board G from the lid assembly E 3 If an external options connector is fitted a foam seal...

Страница 143: ...3lb in 0 34N m 2 If the outer foam seal E or the inner foam D range seal G have been removed fit new seals to the heat transfer block F 3 With the 25W radio the rectangular gap pad 1 must be replaced...

Страница 144: ...to Figure 5 6 on page 143 5 Place the main board 1 in position on the heat transfer block F and push them together to spread the thermal paste Important You must observe the following order of assemb...

Страница 145: ...L shaped ridge of the chassis Peel off the transparent film on other of the gap pad 2 If the thermal paste on the heat transfer block or the underside of the main board has been contaminated new therm...

Страница 146: ...F connector seal j Ensure that the seal is properly seated around its entire periphery 9 If an auxiliary connector bung h was fitted fit the bung Closing the Radio Body The circled number in this sect...

Страница 147: ...flange C 3 Disconnect the control head loom D 4 If an optional circuit board is fitted unplug it from the control head board F refer to Figure 5 8 5 Note whether the speaker is connected or disconnec...

Страница 148: ...he spaceframe and remove it along with the two seals G Check the seals G and replace them if necessary 11 Remove the speaker 1 and speaker clamp 1 Important When fitting the speaker and the speaker cl...

Страница 149: ...ly with female female adapter E 3 x 10 PT screw x4 F control head board G space frame seal x2 H short light pipe I long light pipe J space frame 1 speaker clamp 1 speaker 1 LCD assembly including LCD...

Страница 150: ...cted or disconnected If it is connected disconnect the speaker cable from the speaker connector of the control head board refer to Figure 5 10 Note that the radio must be returned to the customer in i...

Страница 151: ...ng the space frame G make sure that the clips labelled B to G fully snap into the front panel assembly If necessary use a flat bladed screwdriver to push down the clips until they snap into place Figu...

Страница 152: ...lacing the LCD carefully remove the protective plastic film from the LCD Take care not to scratch the soft polarizer material on the top side of the LCD Important When fitting the speaker and the spea...

Страница 153: ...on refer to the items in Figure 5 12 1 Release the clip of the PCB bracket E and remove the control head board B 2 Disconnect the control head loom C from the control head board B 3 Use a Torx T10 scr...

Страница 154: ...o screws B and remove the cover seal Note that the radio must be returned to the customer in its original configuration 2 Note whether an options board not shown is fitted inside the control head If a...

Страница 155: ...on file checking the user interface checking any error messages The following tasks only need to be carried out if they relate to the fault reported checking the transmit and transmit audio functions...

Страница 156: ...fit the upper part of the seal and then press down around the sides of the seal to the bottom Ensure that the seal is properly seated around its entire periphery Check for Additional Damage Also check...

Страница 157: ...0 2 If the radio powers up successfully go to Task 4 If it does not go to Step 3 3 Check the fuses cables and the power supply 4 Check whether the control head loom the control head or the radio body...

Страница 158: ...ly Refer to the troubleshooting section of the online help 5 If the programming file can be read now save a copy on the test PC and go to Task 5 If not go to Step 6 6 Check whether the control head lo...

Страница 159: ...start up sequence the LEDs light up red briefly the speaker gives two short beeps LCD and keypad backlighting activates the LCD displays a power up message then a channel number or an error message 3...

Страница 160: ...E0001 Unknown Turn the radio off and then back on Error E0002 Unknown Continue with servicing tasks to locate the problem Error E0003 Corrupt FW Re download the radio s firmware Error E0008 System err...

Страница 161: ...6 Use CCTM command 326 1 to set the power level to very low 7 Connect a power meter and measure the transmit power 8 If the carrier power is correct go to Step 10 If the carrier power is not correct...

Страница 162: ...frequency set to the top of the band 5 Feed a signal without modulation on the receive channel at 47dBm Check for maximum RSSI using the indicator on the radio display graphical display the green sta...

Страница 163: ...assembly This section describes the steps after completion of the fault diagnosis 1 Use the programming and calibration applications to load the pro gramming and calibration files read or set up in In...

Страница 164: ...ing of the same software features as in the original assembly Proceed as follows 1 If it was possible to read the software features in Obtain the Details of the Software Feature Enabler SFE on page 15...

Страница 165: ...m that it is fully functional again The recommended tests are listed in Table 6 2 to Table 6 4 The calibration application can be used for many of these tests It is good practice to record the test re...

Страница 166: ...d H5 band H7 band K5 band Very low B1 band G2 band H5 band H7 band K5 band 46 3W to 58 3W 37 1W to 46 7W 37 1W to 46 7W 37 1W to 46 7W 26 7W to 33 7W 23 2W to 29 2W 18 5W to 23 3W 18 5W to 23 3W 18 5W...

Страница 167: ...ttenuation switched in when the test unit PORTABLE MOBILE switch is set to MOBILE Refer to TOPA SV 024 Test Unit on page 613 for details Table 6 4 Final tests of general radio functions Test Descripti...

Страница 168: ...168 Servicing Procedures TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 169: ...Task 6 check provision of external power Types of Fault Which of the above tasks are applicable depends on the nature of the fault Radio fails to power up The radio fails to power up immediately when...

Страница 170: ...sks on page 155 If it does not go to Step 5 5 Check the digital power up signal at pin 5 of IC602 see Figure 7 1 the signal is active high namely when the voltage exceeds 2 0V DC Measure the voltage a...

Страница 171: ...ual Power Supply Fault Finding 171 Tait Electronics Limited November 2007 Figure 7 1 Important components of the power supply circuitry bottom side including 3 3V regulator IC602 pin 7 pin 5 C603 C618...

Страница 172: ...ecting the supply or preventing the radio from powering up While keeping the ON OFF key depressed measure the supply at the 3V3 test point near the corner of the digital board see Figure 7 2 The volta...

Страница 173: ...6 If the fault remains the repair failed replace the board and go to Final Tasks on page 163 6 Reconnect the 13 8V supply Press the ON OFF key If the radio powers up return to Initial Tasks on page 1...

Страница 174: ...ine of the relevant regulator IC Repair any fault 2 If the regulator IC has been removed resolder it in position 3 Reconnect the 13 8 V supply and press the ON OFF key If the radio powers up or the co...

Страница 175: ...ons power sense IOP GPIO7 auxiliary power sense AUX GPI3 emergency power sense AUX GPI2 4 For the first two lines confirm that the Power Sense Ignition option has been selected in the Action field and...

Страница 176: ...ctor PL100 Repair any fault and go to Step 5 2 For the auxiliary power sense option the link LK2 should be inserted see Figure 7 2 Connect 3 3V DC more than 2 6V to be precise from the power supply to...

Страница 177: ...Figure 7 1 is high Remove the 3 3V supply and ground the IOP GPIO7 line to be precise the voltage on the line should be less than 0 6V If the power up signal is now low conclude with Step 5 If it is...

Страница 178: ...xternal power to any of these connectors first confirm the link settings required and then carry out the following procedure 1 With the radio powered up confirm that 13 8V DC is present at pin 3 of IC...

Страница 179: ...ese enclosures In Figure 8 1 which shows part of the internal options connector as an example IOP GPIO7 is a connector signal and ITF IOP GPIO7 is an internal signal Types of Signals The connector and...

Страница 180: ...Service Manual Tait Electronics Limited November 2007 Figure 8 2 Components of the interface circuitry top side near the CDC TOP and IF TOP cans Figure 8 3 Components of the interface circuitry top s...

Страница 181: ...ild mechanical shock or vibration or to a temperature change This might expose any intermittent contact in which case go to Step 3 3 If the expected signal is not present check whether the expected in...

Страница 182: ...182 Interface Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 8 4 Components of the interface circuitry bottom side...

Страница 183: ...f they are not go to Step 8 7 The fault lies with the radio s internal circuitry If the power supply circuitry or the CODEC and audio circuitry is suspect continue with the fault diagnosis as in Power...

Страница 184: ...184 Interface Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 185: ...ge 123 Use an oscilloscope with a x10 probe for all voltage measurements required The signals should appear stable and clean Consider any noise or unidentified oscillations as evidence of a fault requ...

Страница 186: ...he checks of Task 1 and Task 2 respectively are required In the last case there are several symptoms these are listed below Frequency Bands Where test procedures or figures differ according to the fre...

Страница 187: ...sizer To determine which is faulty calibrate the VCXO and the transmit VCO as described below Always calibrate the former first because the latter depends on the former 1 Place the radio in CCTM 2 Ent...

Страница 188: ...receive mode Go to Power Supplies on page 189 Task 2 Lock Status A lock error indicates that the frequency synthesizer FCL or second LO is out of lock To determine which is faulty check the lock statu...

Страница 189: ...sk 4 6V DC supply from 6V regulator in PSU module 6V0 Task 5 5V DC supply following filtering of 6V supply 5V DEC Task 6 3V DC supply from 3V regulator in PSU module 3V0 AN The measurement points for...

Страница 190: ...ber 2007 Figure 9 2 Synthesizer circuitry under the SYN TOP can and the 6V regulator IC606 top side VHF bands UHF bands Measurement point on L506 pin not used Pin 5 5 pin device Q508 Q507 Q506 Q508 Q5...

Страница 191: ...side of the PCB Measure the VCL SUPPLY voltage on the via beside C5050 4 If the SMPS output is correct go to Task 4 If it is not go to Step 5 5 Check the 9V supply at Q500 and R533 see Figure 9 3 6 I...

Страница 192: ...n 4 of IC606 see Figure 9 2 2 If the voltage is correct go to Task 5 If it is not measure the 9V input at pin 5 of IC606 see Figure 9 2 3 If the voltage is correct go to Step 4 If it is not the 9V reg...

Страница 193: ...vice Manual Frequency Synthesizer Fault Finding 193 Tait Electronics Limited November 2007 Figure 9 3 Synthesizer circuitry under the FCL TOP can top side A4 band PAD TOP can top side PCB VCXO BOT can...

Страница 194: ...194 Frequency Synthesizer Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 9 4 Synthesizer circuitry under the SYN BOT can bottom side IC505 IC504 Q505 Q511...

Страница 195: ...5 and the 5V and transmit receive switches based on Q506 Q507 and Q508 pins 1 2 6 see Figure 9 2 Replace any suspect transistor Conclude with Step 6 5 For VHF radios check for faults in the C multipli...

Страница 196: ...cy Synthesizer Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 9 5 Transmit receive switch components VHF bands 25W versions shown Q5003 Q5002 Q5003 Q5002 SYN...

Страница 197: ...heck the supply at L506 see Figure 9 2 The measurement point is the via shown in the figure 4 If the voltage is correct go to Step 5 If it is not the 3V regulator IC603 is suspect go to Task 3 of Powe...

Страница 198: ...PLL inputs and output are summarized in Figure 9 6 Task 7 Supply for Charge Pump First check the supply for the charge pump of the PLL 1 Measure the supply for the charge pump at pin 16 of IC503 see F...

Страница 199: ...ILTER AT C565 TP503 JUNCTION OF R566 AND R570 TP503 JUNCTION OF R566 AND R570 SIGNAL TYPES RF ANALOG CLOCK DIGITAL PLL LOOP FILTER AND SUMMER FILTERING OF SUPPLY FOR PLL AND LOOP FILTER FCL VCO CIRCUI...

Страница 200: ...re 9 2 2 If the signal is correct go to Task 9 If it is not go to Step 3 3 Check IC503 see Figure 9 2 Replace IC503 if it is suspect 4 Determine if the fault has been removed If it has go to Final Tas...

Страница 201: ...nd the digital board 6 Enter the CCTM command 334 1 to switch on the synthesizer and measure the voltage at the via between R104 see Figure 9 7 and the digital board 7 If the voltages measured in Step...

Страница 202: ...p 2 is correct go to Loop Filter on page 204 If it is not go to Step 4 4 Check for continuity between pin 14 of IC503 and the digital board via R568 see Figure 9 2 and L102 see Figure 9 7 5 If there i...

Страница 203: ...t Finding 203 Tait Electronics Limited November 2007 Figure 9 8 Synthesizer circuitry under the SYN TOP can top side VHF bands UHF bands Q512 Q512 Junction of C541 and R547 Junction of C541 and R547 T...

Страница 204: ...R542 see Figure 9 8 3 Using an oscilloscope proceed as follows to observe the voltage at C565 before and after grounding the junction between C541 and R547 see Figure 9 8 While holding the oscilloscop...

Страница 205: ...ystem error or a transmit fault the transmit VCO is suspect go to Transmit VCO and Related Circuitry UHF and 800MHz Radios on page 218 Task 13 Check Reference Voltage If the loop filter circuitry is s...

Страница 206: ...eck IC504 IC505 Q511 see Figure 9 4 and associated components 4 Check the following components see Figure 9 8 Note On early issue boards C548 is fitted instead of these components 5 If a fault is foun...

Страница 207: ...digital board see Figure 9 7 The result should be 9 Enter the CCTM command 389 0 to set the mode to slow 10 Measure the voltage at the via between R105 and the digital board see Figure 9 7 The result...

Страница 208: ...nstead of these components 5 Remove R566 and R570 see Figure 9 8 which provide a modulation path to the VCO s 6 Repeat the measurement of Step 1 7 If the correct result is now obtained go to Step 8 If...

Страница 209: ...for the different UHF frequency bands are defined in Table 9 3 There are six aspects Task 17 check receive VCO Task 18 repair PLL feedback Task 19 repair receive VCO Task 20 check switching to receiv...

Страница 210: ...10 Frequency Synthesizer Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 9 10 Measurement points for the VCO and related circuitry in UHF radios except K5 band...

Страница 211: ...ncy equal to the maximum given in Table 9 3 3 If the receive frequency measured in Step 2 is correct go to Step 4 If it is incorrect go to Task 19 but if no frequency is detected go to Task 20 4 Proce...

Страница 212: ...t Electronics Limited November 2007 Figure 9 11 Synthesizer circuitry under the SYN TOP and VCO TOP cans UHF radio top side Tx port Junction of C541 and R547 Rx port Q507 Q506 Q508 UHF band shown VHF...

Страница 213: ...the board and go to Final Tasks on page 163 Task 19 Repair Receive VCO If either or both the minimum and maximum receive frequencies are incorrect the receive VCO circuitry is faulty 1 For all bands...

Страница 214: ...equency Synthesizer Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 9 12 Synthesizer circuitry under the VCO BOT bottom side Q5001 UHF band shown VHF similar K...

Страница 215: ...9 11 2 Enter the CCTM command 335 0 to switch on the supply to the receive VCO 3 Measure the voltage at the first collector pin 3 of Q506 see Figure 9 11 The voltage should be 4 Enter the CCTM command...

Страница 216: ...voltage at the via between R103 and the digital board 6 If the voltages measured in Step 4 and Step 5 are correct go to Step 7 If they are not the digital board is faulty resolder R103 in position se...

Страница 217: ...ransmit mode Enter the CCTM command 335 1 to set the transmit receive switch on 5 Again measure the voltages of Q5100 and IC5100 6 If the voltages are correct the receive VCO is suspect go to Step 7 I...

Страница 218: ...related circuitry The minimum and maximum transmit frequencies for the different UHF frequency bands are defined in Table 9 4 There are five aspects Task 23 check transmit VCO Task 24 repair PLL feed...

Страница 219: ...to the maximum given in Table 9 4 3 If the transmit frequency measured in Step 2 is correct go to Step 4 If it is incorrect go to Task 25 If no frequency is detected go to Task 26 4 Proceed as follows...

Страница 220: ...inal Tasks on page 163 Task 25 Repair Transmit VCO If either or both the minimum and maximum transmit frequencies are incorrect the transmit VCO circuitry is faulty 1 Remove the VCO TOP can 2 Check th...

Страница 221: ...9 11 2 Enter the CCTM command 335 1 to switch on the supply to the transmit VCO 3 Measure the voltage at the second collector pin 6 of Q506 see Figure 9 11 The voltage should be 4 Enter the CCTM comma...

Страница 222: ...go to Step 7 If they are not the transmit buffer amplifier is suspect go to Step 9 7 Remove the VCO TOP can 8 Check the transmit VCO circuitry based on Q510 see Figure 9 11 Conclude with Step 10 9 Che...

Страница 223: ...r in transmit mode Enter the CCTM command 335 1 to set the transmit receive switch on 11 Measure the voltage at the base of Q510 12 If the voltages are correct the transmit VCO is suspect Go to Step 1...

Страница 224: ...HF frequency bands are defined in Table 9 5 There are six aspects Task 28 check VCO Task 29 repair PLL feedback Task 30 repair VCO Task 31 check transmit receive switch Task 32 repair switching networ...

Страница 225: ...N 2 OF D5004 PIN 2 OF D5004 TX PORT TX PORT RX PORT RX PORT SIGNAL TYPES RF ANALOG CLOCK DIGITAL PLL LOOP FILTER AND SUMMER FILTERING OF SUPPLY FOR VCO CIRCUITRY FREQUENCY SYNTHESIZER PLL FEEDBACK VCO...

Страница 226: ...the maximum given in Table 9 5 3 If the maximum frequency measured in Step 2 is correct go to Step 4 If it is incorrect go to Task 30 but if no frequency at all is detected go to Task 31 4 Enter the...

Страница 227: ...Service Manual Frequency Synthesizer Fault Finding 227 Tait Electronics Limited November 2007 Figure 9 14 Synthesizer circuitry under the SYN TOP can VHF radios top side Tx port Junction of C541 and...

Страница 228: ...then the PLL feedback is suspect 1 Resolder R542 in position see Figure 9 14 2 Remove the VCO BOT can 3 Replace the components L510 see Figure 9 15 and IC503 see Figure 9 14 Note On A4 band radios the...

Страница 229: ...equency Synthesizer Fault Finding 229 Tait Electronics Limited November 2007 Figure 9 15 Synthesizer circuitry under the VCO BOT can VHF radios Q5003 Q5002 L510 Q5001 D5004 Q5000 Q5003 L5010 SYN TOP A...

Страница 230: ...e Figure 9 15 3 If a fault is found repair it and go to Step 4 If no fault is found go to Step 7 4 Repeat Step 1 and Step 2 of Task 28 to measure the maximum VCO frequency 5 Repeat Step 4 and Step 5 o...

Страница 231: ...voltage at pin 2 of D5004 7 If the voltages measured in Step 4 and Step 6 are correct go to Step 8 If they are not the switching network is suspect go to Task 32 8 Enter the CCTM command 335 1 to swi...

Страница 232: ...ge at the via between R103 and the digital board 6 If the voltages measured in Step 4 and Step 5 are correct go to Step 7 If they are not the digital board is faulty resolder R103 in position see Figu...

Страница 233: ...see Figure 9 15 Some RF noise might be observed 3 Measure the voltage at pin 1 of Q5001 see Figure 9 15 4 If the voltages measured in Step 2 and Step 3 are not correct go to Step 5 If they are check...

Страница 234: ...ault with the reference frequency input from the FCL to the PLL will imply that the FCL is suspect Fault diagnosis of the FCL is divided into four stages check power supply check VCXO and TCXO outputs...

Страница 235: ...INTERFACE CIRCUITRY RECEIVER FCL CIRCUITRY 3V0 AN SUPPLY C536 R541 VCXO OUTPUT AT C536 VCXO OUTPUT AT C536 PLL SYN RX OSC C510 TP504 FEEDBACK SIGNAL SYN DIG FREF TCXO OUTPUT VCXO OUTPUT AT R522 PIN 1...

Страница 236: ...board from the chassis and place the radio in CCTM 2 Measure the supply 3V0 AN at the via shown in Figure 9 17 The via is adjacent to the CDC TOP can 3 If the voltage is correct go to VCXO and TCXO Ou...

Страница 237: ...The VCXO circuitry under the VCXO BOT can is faulty Remove the VCXO BOT can 4 Locate and repair the fault in the VCXO Q501 Q503 XL501 and associated components see Figure 9 19 5 Confirm the removal o...

Страница 238: ...nics Limited November 2007 Figure 9 18 FCL circuitry under and adjacent the FCL TOP can Via for measuring VCXO output Position R527 for Tasks 38 and 39 FCL _ TOP IC506 L501 Q504 IC509 R520 R510 R527 R...

Страница 239: ...o to Signals at TP501 and TP502 on page 240 If it is not go to Step 3 3 The TCXO circuitry under the CDC TOP can is faulty Remove the CDC TOP can 4 Locate and repair the fault in the TCXO XL500 and as...

Страница 240: ...he signal is SYN CDC FCL and should be 2 If the signal is correct go to Task 38 If it is not go to Step 3 3 The mixer or LPF circuitry under the FCL TOP can is faulty Remove the FCL TOP can 4 Locate t...

Страница 241: ...m can be checked at the via adjacent to C518 4 If the waveform is correct go to Step 5 If it is not there is a fault in the modulator buffer amplifier IC502 pins 1 to 3 and associated components see F...

Страница 242: ...e fault 4 Repair the circuitry Note that the TCXO input to the mixer see Figure 9 18 should be Also the VCXO input to the mixer see Figure 9 18 although noisy and difficult to measure should be 5 Conf...

Страница 243: ...cans 8 Use the oscilloscope probe to check the difference frequency at the TP502 test point see Figure 9 18 The signal is SYN CDC FCL and should be 9 If the signal is correct the fault has been remove...

Страница 244: ...ck status 3 Enter the CCTM command 393 1 1900 Again measure the voltage level at the TP501 test point 4 Enter the CCTM command 72 and note the lock status 5 If the above voltage levels are not correct...

Страница 245: ...signals are missing check the connections between IC205 and the digital board see Figure 9 17 5 If there are faults such as open circuits in the connections repair the circuitry and repeat Task 40 If...

Страница 246: ...246 Frequency Synthesizer Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 247: ...Computer Controlled Test Mode CCTM on page 123 Frequency Bands Where test procedures or figures differ according to the frequency band of the radio the frequency band is given in brackets The frequen...

Страница 248: ...fault 1 Input an RF signal not necessarily modulated of 90 dBm or 84 dBm with a trigger base radio at the RF connector 2 Enter the CCTM command 378 to measure the receiver output level 3 Note the val...

Страница 249: ...M8200 Service Manual Receiver Fault Finding 249 Tait Electronics Limited November 2007 Figure 10 1 Receiver circuitry under the IF TOP can top side Q404 UHF Measurement point VHF Q404 Measurement poin...

Страница 250: ...d 3V0 RX for the receiver circuitry 1 Remove the board from the chassis 2 Check for 3 0V DC 3V0 AN at the TP601 test point near the LO2 BOT can see Figure 10 2 3 If the voltage is correct go to Step 4...

Страница 251: ...ceiver Fault Finding 251 Tait Electronics Limited November 2007 Figure 10 2 Receiver circuitry under the LO2 BOT can UHF shown Figure 10 3 Receiver circuitry under the FE TOP can top side all bands ex...

Страница 252: ...in 24 of IC400 under the IF TOP can see Figure 10 1 2 If DIG RX EN is active go to Task 4 If it is not go to Step 3 3 Check the signal continuity from the digital board to the receiver Repair any faul...

Страница 253: ...ailed go to Task 7 Task 5 Check Biasing of IF Amplifier If the lock status is normal check the biasing of the IF amplifier 1 Remove the IF TOP can 2 Check all components around Q404 of the IF amplifie...

Страница 254: ...d XF401 see Figure 10 1 2 If the above check reveals no fault go to Step 3 If there is a fault repair it and go to Step 6 3 Remove the PIN TOP and LPF TOP cans 4 Make a visual check of the components...

Страница 255: ...Using the calibration application check the calibration of the front end tuning circuitry Open the Raw Data page and click the Receiver tab 2 Record the values listed in the Rx FE Tune BPF Settings fi...

Страница 256: ...he measurement point shown in Figure 10 3 4 Also check the LNA bias conditions First measure Vc between the collector of Q401 and ground see Figure 10 3 5 Secondly check Ic To do so unsolder and raise...

Страница 257: ...tuning voltages and corresponding DAC values Frequency band Tuning voltages at five different frequencies FE TUNE0 FE TUNE1 FE TUNE2 FE TUNE3 FE TUNE4 A4 band Frequency MHz DAC value Voltage V 65 9 0...

Страница 258: ...IF amplifier bias conditions as in Step 4 and Step 5 of Task 5 4 Check the LNA bias conditions as in Step 4 and Step 5 of Task 8 5 If the checks of Step 2 to Step 4 reveal no fault go to Step 6 If th...

Страница 259: ...ation The first settings to check concern the AGC voltage calibration 1 In the calibration application open the Raw Data page and click the Receiver tab 2 Note the settings listed in the AGC Voltage C...

Страница 260: ...67 AGC0 AGC1 AGC2 Not used 1700 40 1840 40 1960 50 D1 band RF2667 RF9667 AGC0 AGC1 AGC2 1855 40 2050 40 2220 50 1750 40 1900 40 2050 50 G2 band RF2667 RF9667 AGC0 AGC1 AGC2 1845 40 2020 40 2159 50 Not...

Страница 261: ...e between 0dBm and about 3dBm 2 If the values are as expected go to Task 13 If they are not go to Step 3 3 Recalibrate the receiver and check the values again 4 If the values are now correct go to Ste...

Страница 262: ...e calibration application for Task 15 and Task 16 Task 14 Determine Type of Muting Selected First use the programming application to determine the type of muting selected 1 In the programming applicat...

Страница 263: ...e Readings field with the required minimum and maximum values listed in Table 10 5 5 If the mute noise readings are correct go to Task 1 and check the receiver sensitivity If they are not go to Step 6...

Страница 264: ...Opening Pt fields and the Hysteresis fields under the Squelch Thresholds label are what the Customer expects 3 If the calibration values are as expected go to Task 10 and check the RSSI calibration I...

Страница 265: ...bration application to check the TCXO calibration Open the Raw Data page and click the Volt Ref TCXO VCO VCXO tab 2 Note the values listed in the Tx TCXO and Rx TCXO fields of the TCXO group box The v...

Страница 266: ...Figure 10 1 The frequency is the second IF and should be 3 If the second IF is correct go to Step 6 If it is not go to Step 4 4 Recalibrate the TCXO 5 Check if the distortion fault has been removed I...

Страница 267: ...r even if set otherwise Regardless of the fault the lock status should be normal Fault Diagnosis Tasks The procedure for diagnosing transmitter faults is divided into tasks which are grouped into the...

Страница 268: ...e 33 Set radio in transmit mode 47 Read temperature near PAs displays temperature x in degrees celsius and voltage y 101 x y 0 Set transmit frequency x in hertz and receive frequency y in hertz to spe...

Страница 269: ...e the LPF TOP can must be in place if the transmitter is to operate correctly Transmit Tests The following actions need to be taken when carrying out transmit tests secure the board ensure the proper...

Страница 270: ...uency and power level if necessary enter the CCTM command 33 to perform a transmit test This command places the radio in transmit mode After completing the measurement or check required immediately en...

Страница 271: ...n PSU module 9V0 TX The measurement and test points for diagnosing faults in the power supplies are summarized in Figure 11 1 Figure 11 1 Measurement and test points for diagnosing faults involving th...

Страница 272: ...Task 7 in Transmitter RF Power on page 278 7 Measure the voltage at the point on L310 shown in Figure 11 2 VHF or Figure 11 3 UHF This is the supply at the common drain of Q309 and Q310 and should be...

Страница 273: ...Tait Electronics Limited November 2007 Figure 11 2 Point for measuring the power supply to the PAs and PA driver VHF L310 Q310 Q309 Q306 R339 Q308 R350 MEASUREMENT POINT ON L310 POINT 2 ON R 350 MEASU...

Страница 274: ...mited November 2007 Figure 11 3 Point for measuring the power supply to the PAs and PA driver UHF and K5 bands Q310 Q309 Q306 R339 Q308 L310 MEASUREMENT POINT ON L310 POINT 1 ON R350 MEASUREMENT POINT...

Страница 275: ...e should be 4 If the voltage measured in Step 3 is correct go to Step 5 If it is not go to Task 3 and check the 9V power supply 5 Measure the voltage at the point 2 on R350 shown in Figure 11 2 VHF or...

Страница 276: ...e CCTM command 33 to place the radio in transmit mode 3 Measure the supply voltage between the 9V0 TX test point and the GND test point see Figure 11 4 4 Enter the CCTM command 32 to place the radio i...

Страница 277: ...supply the forward and reverse RF power and the inhibiting of the transmitter VHF UHF IF TOP CAN VCO TOP CAN IF TOP CAN DIRC TOP CAN DIRC TOP CAN D TX INH TEST POINT TX INH TEST POINT TX INH TEST POI...

Страница 278: ...biting of transmitter Task 8 check temperature sensor Task 9 power and current are skewed Task 10 repair output matching circuitry Task 11 power and current are low The measurement points for diagnosi...

Страница 279: ...TEST LEAD TO TEST SET W 50 TEST LEAD TO TEST SET W D TX INH TEST POINT D TX INH TEST POINT RF CON NECTOR RECEIVER LPF DIREC TIONAL COUPLER PAs BUFFER AMPLIFIER BUFFER AMPLIFIER POWER CONTROL PIN SWITC...

Страница 280: ...tage in millivolts corresponding to the power level and should be as shown in Table 11 3 6 Confirm the above result by checking the level at the REV PWR test point see Figure 11 4 using an oscilloscop...

Страница 281: ...different frequency bands are given in Table 11 2 7 Repeat Step 3 to Step 5 8 Program the radio with the lowest frequency in the radio s frequency band Enter the CCTM command 101 x x 0 where x is the...

Страница 282: ...and current values measured in Task 5 are correct it is likely that the power remains unchanged regardless of the power setting 1 Enter the following CCTM commands in turn and measure the RF output po...

Страница 283: ...eck the logic signal at the D TX INH test point see Figure 11 17 on page 310 VHF or Figure 11 4 UHF The signal should be 6 If the signal is inactive as required go to Step 8 If it is active about 3 2V...

Страница 284: ...the two numbers returned the first is the temperature in degrees celsius and should be about 25 C If it is go to Task 12 in Biasing of PA Driver and PAs on page 290 If it is not go to Step 3 3 If not...

Страница 285: ...ics Limited November 2007 Figure 11 6 PA circuitry under the PAF TOP can and part of the directional coupler under the DIRC TOP can VHF and UHF bands H5 H7 BANDS C348 C349 C350 D301 Q310 Q309 TEST PAD...

Страница 286: ...0 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 11 7 PA circuitry under the PAF TOP can and part of the directional coupler under the DIRC TOP can K5 band temperature sensor moun...

Страница 287: ...he highest frequency in the radio s frequency band Enter the CCTM command 101 x x 0 where x is the frequency in hertz The required values for the different frequency bands are given in Table 11 2 7 En...

Страница 288: ...nd 33 to place the radio in transmit mode 5 Note the RF output power measured by the test set and note the current reading on the DC power supply 6 Enter the CCTM command 32 to place the radio in rece...

Страница 289: ...second PA If it is not enter the CCTM command 32 to place the radio in receive mode and carry out Task 12 and then Task 13 7 For the second PA Q309 enter the CCTM command 332 to check the DAC value of...

Страница 290: ...Biasing If the transmitter is not being inhibited check the biasing of the two PAs and the PA driver First make the following preparations 1 Set the current limit on the DC power supply to 3A 2 Enter...

Страница 291: ...E SIZER CDC TX DRV BIAS CDC TX FIN BIAS1 CDC TX FIN BIAS2 CDC TX PWR CTL TX FWD PWR TX REV PWR CODEC AND AUDIO CIRCUITRY SIGNAL TYPES RF ANALOG SET PWR TEST POINT SET PWR TEST POINT DRV TEST POINT DRV...

Страница 292: ...his will be less than 500mA 3 Enter the CCTM command 331 x where x was recorded in Task 12 4 Check that the voltage changes to 5 Also note the current reading This should increase by an amount approxi...

Страница 293: ...ed November 2007 Figure 11 9 Test points and components of the shaping filter VHF R340 R334 R347 R342 C324 C322 R336 R333 IC303 IC301 B1 BAND DIRC TOP CAN DRV TEST POINT REV PWR TEST POINT FWD PWR TES...

Страница 294: ...1 10 Test points and components of the shaping filter UHF and K5 bands IC301 R334 IC303 R333 R336 R347 R342 C324 C322 H5 H7 BANDS DIRC TOP CAN FWD PWR TEST POINT REV PWR TEST POINT IF TOP CAN PWR TEST...

Страница 295: ...2 Enter the CCTM command 32 to place the radio in receive mode 3 Remove the PAF TOP can 4 Enter the CCTM command 33 to place the radio in transmit mode 5 Enter the CCTM command 331 x where x was recor...

Страница 296: ...l Tait Electronics Limited November 2007 Figure 11 11 PA circuitry under the PAF TOP can VHF and UHF H5 H7 BANDS Q310 Q309 CIRCUITRY BETWEEN IC301 AND PAs VIA TO GATE OF Q310 VIA TO GATE OF Q309 VIA T...

Страница 297: ...ter Fault Finding 25W 297 Tait Electronics Limited November 2007 Figure 11 12 PA circuitry under the PAF TOP can K5 band via to gate of Q309 via to gate of Q310 via to pin 14 of IC301 via to pin 8 of...

Страница 298: ...the multimeter to measure the voltage at the FIN1 test point see Figure 11 9 and Figure 11 10 The voltage should be 2 Enter the CCTM command 331 x where x was recorded in Task 12 3 Check that the volt...

Страница 299: ...nd Figure 11 10 The voltage should be 2 Note the current reading on the DC power supply As mentioned in Step 7 of Task 12 the current will be less than 500mA 3 Enter the CCTM command 332 y where y was...

Страница 300: ...o to Step 2 2 Enter the CCTM command 32 to place the radio in receive mode 3 Remove the PAF TOP can 4 Enter the CCTM command 33 to place the radio in transmit mode 5 Enter the CCTM command 332 y where...

Страница 301: ...the multimeter to measure the voltage at the FIN2 test point see Figure 11 9 and Figure 11 10 The voltage should be 2 Enter the CCTM command 332 y where y was recorded in Task 12 3 Check that the volt...

Страница 302: ...current 3 Note the current reading on the DC power supply 4 Compare the above current readings The current should increase by an amount approximately equal to the offset given in Table 11 6 If it doe...

Страница 303: ...3 If the PAD TOP can has already been removed go to Step 7 If it has not go to Step 4 4 Enter the CCTM command 32 to place the radio in receive mode 5 Remove the PAD TOP can 6 Enter the CCTM command 3...

Страница 304: ...Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 11 13 PA driver circuitry under the PAD TOP can VHF PADTOP Q3504 B1 BAND R327 C310 R324 Q306 COMPONENTS C310 R324...

Страница 305: ...TM8100 TM8200 Service Manual Transmitter Fault Finding 25W 305 Tait Electronics Limited November 2007 Figure 11 14 PA driver circuitry under the PAD TOP can UHF...

Страница 306: ...Transmitter Fault Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 11 15 PA driver circuitry under the PAD TOP can K5 band gate of Q306 componentsC310 R324 and R...

Страница 307: ...t reading on the DC power supply 3 Enter the CCTM command 114 0 to switch off the power 4 Note the current reading on the DC power supply 5 Compare the above current readings The current should decrea...

Страница 308: ...nce may affect these measurements 6 Enter the CCTM command 32 to place the radio in receive mode 7 The voltages measured in Step 5 should be as given in Table 11 7 If they are go to Step 10 If the FWD...

Страница 309: ...ure 11 17 for UHF and Figure 11 19 for the K5 band and R341 see Figure 11 17 Figure 11 18 and Figure 11 19 11 Repair any fault revealed by the above checks Replace IC303 if none of the other component...

Страница 310: ...11 9 and Figure 11 10 C310 R324 and R327 see Figure 11 13 to Figure 11 15 between the power con trol circuit and Q306 2 Repair any fault revealed by the checks in Step 1 If none of the above mentioned...

Страница 311: ...vice Manual Transmitter Fault Finding 25W 311 Tait Electronics Limited November 2007 Figure 11 18 Components of concern on the bottom side of the main board UHF H5 H7 BANDS C319 R341 R340 R396 COPPER...

Страница 312: ...Transmitter Fault Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 11 19 Components of concern on the bottom side of the main board K5 band copper plate VCO BOT...

Страница 313: ...3 Measure the voltage at pin 10 of IC303 in the power control circuit The voltage should be 4 If the voltage is correct go to Step 5 If it is not go to Task 25 5 Enter the CCTM command 32 to place th...

Страница 314: ...e mode 3 If the voltage measured in Step 1 is correct go to Step 4 If it is not go to Step 5 4 Check the components R334 see Figure 11 9 and Figure 11 10 and C319 see Figure 11 17 and Figure 11 18 and...

Страница 315: ...Task 33 and Task 34 PIN switch Task 35 LPF The initial signal path includes the exciter and PA driver The directional coupler PIN switch and LPF make up the final signal path The measurement points fo...

Страница 316: ...e frequency enter the CCTM command 101 x x 0 where x is the frequency in hertz 3 Enter the CCTM command 33 to place the radio in transmit mode 4 Use an RFP5401A RF probe or the equivalent to measure t...

Страница 317: ...and VHF PADTOP Q3504 C317 C389 Q306 C3500 C3505 C3509 C307 Q3501 Q3502 Q3505 H5 H7 BANDS OUTPUT OF PA DRIVER OUTPUT OF STAGE 3 OF EXCITER AT C307 R3525 JUNCTION OF R3525 AND C3512 OUTPUT OF STAGE 2 OF...

Страница 318: ...8200 Service Manual Tait Electronics Limited November 2007 Figure 11 22 PA driver circuitry under the PAD TOP can K5 band output of stage 2 of exciter at C307 output of stage 2 of exciter at C313 synt...

Страница 319: ...15 0 0 5 15 6 0 5 70 136 155 174 0 3 0 1 0 2 0 1 0 3 0 1 0 6 0 2 0 6 0 2 0 7 0 2 2 7 0 5 2 2 0 5 1 7 0 5 4 0 0 5 3 7 0 5 4 0 0 5 24 5 0 5 29 0 0 5 22 0 0 5 Table 11 9 RF voltages along the initial RF...

Страница 320: ...4 0 0 5 2 9 0 5 60 400 435 470 0 3 0 1 0 3 0 1 0 3 0 1 1 2 0 2 2 4 0 2 1 1 0 2 4 2 0 5 2 7 0 5 2 1 0 5 9 2 0 5 6 8 0 5 4 8 0 5 8 1 0 5 7 3 0 5 5 3 0 5 Table 11 11 RF voltages along the initial RF sign...

Страница 321: ...0 1 1 1 0 2 1 0 0 2 1 2 0 2 2 2 0 5 1 9 0 5 0 9 0 5 2 5 0 5 2 0 0 5 0 9 0 5 15 450 485 520 0 2 0 1 0 2 0 1 0 2 0 1 1 1 0 2 1 0 0 2 1 2 0 2 2 2 0 5 1 9 0 5 0 9 0 5 3 1 0 5 2 4 0 5 1 1 0 5 20 450 485 5...

Страница 322: ...F bands see Figure 11 21 or Q300 for the K5 band see Figure 11 22 Use an RFP5401A RF probe or the equivalent The required voltage should be as given in Table 11 8 B1 Table 11 9 G2 Table 11 10 H5 Table...

Страница 323: ...H7 or Table 11 12 K5 2 If the voltage is correct go to Task 30 If it is not go to Step 3 3 Enter the CCTM command 32 to place the radio in receive mode 4 Check the components around Q3502 for the VHF...

Страница 324: ...t go toStep 3 3 With the radio still in transmit mode measure the RF voltage at the junction of R3525 and C3512 see Figure 11 21 The voltage should be 4 Enter the CCTM command 32 to place the radio in...

Страница 325: ...the above checks reveal a fault go to Step 6 If they do not go to Task 12 in Biasing of PA Driver and PAs on page 290 6 Repair the fault Confirm the removal of the fault and go to Final Tasks on page...

Страница 326: ...TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 11 23 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 VHF B1 BAND Q310...

Страница 327: ...itter Fault Finding 25W 327 Tait Electronics Limited November 2007 Figure 11 24 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 UHF H5 H7 BANDS Q31...

Страница 328: ...nding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 11 25 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 K5 band...

Страница 329: ...test pad shown in Figure 11 26 and solder the central wire to the other terminal of the test capacitor 5 Connect the test lead to the test set 6 Enter the CCTM command 326 5 to set the transmitter po...

Страница 330: ...cs Limited November 2007 Figure 11 26 Circuitry under the DIRC TOP can and the points for attaching the test lead and test capacitor K5 band test pad mounting point for test capacitor UHF test pad mou...

Страница 331: ...power level to the maximum 6 Enter the CCTM command 101 x x 0 where x is the lowest frequency in hertz for maximum power as given in Table 11 8 B1 Table 11 9 G2 Table 11 10 H5 Table 11 11 H7 or Table...

Страница 332: ...he test capacitor 5 Connect the test lead to the test set 6 Enter the CCTM command 326 5 to set the transmitter power level to the maximum 7 Enter the CCTM command 101 x x 0 where x is the lowest freq...

Страница 333: ...nics Limited November 2007 Figure 11 27 Circuitry under the PIN TOP can and points for attaching the test lead and test capacitor K5 band test pad mounting point for test capacitor UHF test pad mounti...

Страница 334: ...t enter the CCTM command 326 5 to set the transmitter power level to the maximum 5 Enter the CCTM command 101 x x 0 where x is the lowest frequency in hertz for maximum power as given in Table 11 8 B1...

Страница 335: ...rvice Manual Transmitter Fault Finding 25W 335 Tait Electronics Limited November 2007 Figure 11 28 Components of concern on the bottom side of the main board VHF B1 BAND R389 R390 NB BOT CAN COPPER PL...

Страница 336: ...Fault Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 11 29 Components of concern on the bottom side of the main board UHF H5 H7 BANDS R3000 R389 R390 COPPER PL...

Страница 337: ...100 TM8200 Service Manual Transmitter Fault Finding 25W 337 Tait Electronics Limited November 2007 Figure 11 30 Components of concern on the bottom side of the main board K5 band VCO BOT can copper pl...

Страница 338: ...338 Transmitter Fault Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 11 31 Circuitry under the LPF TOP can K5 band UHF VHF...

Страница 339: ...level to the maximum 6 Enter the CCTM command 101 x x 0 where x is the lowest frequency in hertz for maximum power as given in Table 11 8 B1 Table 11 8 G2 Table 11 10 H5 Table 11 11 H7 or Table 11 12...

Страница 340: ...340 Transmitter Fault Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 341: ...d Test Mode CCTM on page 123 Table 12 1 CCTM commands required for the diagnosis of faults in the transmitter Command Description 32 Set radio in receive mode 33 Set radio in transmit mode 47 Read tem...

Страница 342: ...program the radio with any frequency in the above ranges Can Removal There are five cans shielding the bulk of the transmitter circuitry PAD TOP PAF TOP DIRC TOP PIN TOP LPF TOP To remove any can fir...

Страница 343: ...ed to the RF communications test set as shown in Figure 4 2 on page 116 But for those tests where this connection is not necessary a 50 load may be used instead Do not operate the transmitter without...

Страница 344: ...ator in PSU module 9V0 TX The measurement and test points for diagnosing faults in the power supplies are summarized in Figure 12 1 Figure 12 1 Measurement and test points for diagnosing faults involv...

Страница 345: ...4 Enter the CCTM command 326 5 to set the radio to maximum power 5 Attempt to place the radio in transmit mode Enter the CCTM command 33 6 If the radio enters the transmit mode continue with Step 7 I...

Страница 346: ...smitter Fault Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 12 2 Point for measuring the power supply to the PAs UHF shown H5 H6 BANDS SHOWN MEASUREMENT POINT...

Страница 347: ...ait Electronics Limited November 2007 Figure 12 3 Point for measuring the power supply to the PA driver VHF shown C310 R324 R327 C317 C389 Q306 Q308 R350 L306 PAD TOP MEASUREMENT POINT ON L306 MEASURE...

Страница 348: ...ude with Step 8 7 Remove the heat transfer block from the board Replace Q311 situated on the bottom side of the board next to the power connector Replace the heat transfer block and conclude with Step...

Страница 349: ...ovember 2007 Figure 12 4 Test points for checking the 9V supply the forward and reverse RF power and the inhibiting of the transmitter DIRC TOP CAN IF TOP CAN VCO TOP CAN UHF ONLY D TX INH TEST POINT...

Страница 350: ...ransmitter Task 8 check temperature sensor Task 9 power and current are skewed Task 10 repair output matching circuitry Task 11 power and current are low The measurement points for diagnosing faults c...

Страница 351: ...INT 50 TEST LEAD TO TEST SET W 50 TEST LEAD TO TEST SET W D TX INH TEST POINT D TX INH TEST POINT RF CON NECTOR RECEIVER LPF DIREC TIONAL COUPLER PAs BUFFER AMPLIFIER BUFFER AMPLIFIER POWER CONTROL PI...

Страница 352: ...tage in millivolts corresponding to the power level and should be as shown in Table 12 3 6 Confirm the above result by checking the level at the REV PWR test point see Figure 12 4 using an oscilloscop...

Страница 353: ...required values for the different frequency bands are given in Table 12 2 7 Repeat Step 3 to Step 5 8 Program the radio with the lowest frequency in the radio s frequency band Enter the CCTM command 1...

Страница 354: ...ignal at the TX INH test point see Figure 12 4 The signal should be 3 If the signal is inactive as required go to Step 4 If it is active about 1 1V the transmitter is being inhibited go to Step 5 4 En...

Страница 355: ...erature sensor might be the cause 1 Enter the CCTM command 47 to check the temperature reading 2 Of the two numbers returned the first is the temperature in degrees celsius and should be about 25 C If...

Страница 356: ...imited November 2007 Figure 12 6 PA circuitry under the PAF TOP can and part of the directional coupler under the DIRC TOP can VHF shown PAF TOP D301 Q310 Q309 D1 BAND TEMPERATURE SENSOR C350 C349 C34...

Страница 357: ...ect the test lead to the test set 6 Program the radio with the highest frequency in the radio s frequency band Enter the CCTM command 101 x x 0 where x is the frequency in hertz 7 Enter the CCTM comma...

Страница 358: ...the radio in transmit mode 5 Note the RF output power measured by the test set and note the current reading on the DC power supply 6 Enter the CCTM command 32 to place the radio in receive mode 7 Pro...

Страница 359: ...it is not enter the CCTM command 32 to place the radio in receive mode and carry out Task 12 and then Task 13 7 For the second PA Q309 enter the CCTM command 332 to check the DAC value of final bias...

Страница 360: ...k Biasing If the transmitter is not being inhibited check the biasing of the two PAs and the PA driver First make the following preparations 1 Set the current limit on the DC power supply to 2A 2 Ente...

Страница 361: ...FRE QUENCY SYNTHE SIZER CDC TX DRV BIAS CDC TX FIN BIAS1 CDC TX FIN BIAS2 CDC TX PWR CTL TX FWD PWR TX REV PWR CODEC AND AUDIO CIRCUITRY SIGNAL TYPES RF ANALOG SET PWR TEST POINT SET PWR TEST POINT DR...

Страница 362: ...ess than 500mA 3 Enter the CCTM command 331 x where x was recorded in Task 12 4 Check that the voltage changes to 5 Also note the current reading This should increase by an amount approximately equal...

Страница 363: ...25W 363 Tait Electronics Limited November 2007 Figure 12 8 Test points and components of the shaping filter DIRC TOP CAN IF TOP CAN VCO TOP CAN UHF ONLY SET PWR TEST POINT FWD PWR TEST POINT PWR TEST...

Страница 364: ...ce Manual Tait Electronics Limited November 2007 Figure 12 9 PA circuitry under the PAF TOP can VHF shown D301 PAF TOP CIRCUITRY BETWEEN IC301 AND PAs VIA TO GATE OF Q309 VIA TO GATE OF Q310 Q310 Q309...

Страница 365: ...2 Enter the CCTM command 32 to place the radio in receive mode 3 Remove the PAF TOP can 4 Enter the CCTM command 33 to place the radio in transmit mode 5 Enter the CCTM command 331 x where x was reco...

Страница 366: ...of the PAs 1 Use the multimeter to measure the voltage at the FIN1 test point see Figure 12 8 The voltage should be 2 Enter the CCTM command 331 x where x was recorded in Task 12 3 Check that the vol...

Страница 367: ...re 12 8 The voltage should be 2 Note the current reading on the DC power supply As mentioned in Step 7 of Task 12 the current will be less than 500mA 3 Enter the CCTM command 332 y where y was recorde...

Страница 368: ...go to Step 2 2 Enter the CCTM command 32 to place the radio in receive mode 3 Remove the PAF TOP can 4 Enter the CCTM command 33 to place the radio in transmit mode 5 Enter the CCTM command 332 y whe...

Страница 369: ...of the PAs 1 Use the multimeter to measure the voltage at the FIN2 test point see Figure 12 8 The voltage should be 2 Enter the CCTM command 332 y where y was recorded in Task 12 3 Check that the vol...

Страница 370: ...the clamp current 3 Note the current reading on the DC power supply 4 Compare the above current readings The current should increase by an amount approximately equal to the offset given in Table 12 6...

Страница 371: ...o to Task 21 3 If the PAD TOP can has already been removed go to Step 7 If it has not go to Step 4 4 Enter the CCTM command 32 to place the radio in receive mode 5 Remove the PAD TOP can 6 Enter the C...

Страница 372: ...TM8200 Service Manual Tait Electronics Limited November 2007 Figure 12 10 PA driver circuitry under the PAD TOP can VHF shown R308 R324 C310 R327 C301 Q303 C313 Q300 C300 C317 C389 Q306 PAD TOP D1 BAN...

Страница 373: ...he current reading on the DC power supply 3 Enter the CCTM command 114 0 to switch off the power 4 Note the current reading on the DC power supply 5 Compare the above current readings The current shou...

Страница 374: ...374 Transmitter Fault Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 12 11 Circuitry under the DIRC TOP can UHF shown...

Страница 375: ...2 7 If it is go to Task 24 If it is not go to Step 6 6 Check the voltage at pin 5 of IC303 or use the FWD PWR test point see Figure 12 8 Note that the probe impedance might affect the measurement 7 En...

Страница 376: ...e 163 If the repair failed replace the board and go to Final Tasks on page 163 Task 23 Power Control for PA Driver In this task any faults in the path between the power control circuit and the PA driv...

Страница 377: ...anual Transmitter Fault Finding 25W 377 Tait Electronics Limited November 2007 Figure 12 12 Components of concern on the bottom side of the board VHF shown R390 R389 R3000 C319 R340 C345 R396 R3009 CO...

Страница 378: ...ce IC303 see Figure 12 8 if none of the other components is faulty Confirm the removal of the fault and go to Final Tasks on page 163 If the repair failed replace the board and go to Final Tasks on pa...

Страница 379: ...ask 30 directional coupler Task 31 and Task 32 PIN switch Task 33 LPF The initial signal path includes the exciter and PA driver The directional coupler PIN switch and LPF make up the final signal pat...

Страница 380: ...26 x where x defines the level To set the frequency enter the CCTM command 101 x x 0 where x is the frequency in hertz 3 Enter the CCTM command 33 to place the radio in transmit mode 4 Use an RFP5401A...

Страница 381: ...al Transmitter Fault Finding 25W 381 Tait Electronics Limited November 2007 Figure 12 14 PA driver circuitry under the PAD TOP can UHF shown Synthesizer output at C300 Exciter output at C301 Driver ou...

Страница 382: ...0 3 0 1 0 4 0 1 0 4 0 1 0 4 0 1 2 7 0 5 2 3 0 5 2 6 0 5 0 98 0 5 1 25 0 5 0 97 0 5 5 66 77 88 0 3 0 1 0 3 0 1 0 3 0 1 0 4 0 1 0 4 0 1 0 4 0 1 2 7 0 5 2 4 0 5 2 6 0 5 1 8 0 5 2 5 0 5 1 9 0 5 12 66 77 8...

Страница 383: ...5 2 5 0 5 3 3 0 5 1 7 0 5 4 5 0 5 40 136 155 174 0 3 0 1 0 2 0 1 0 3 0 1 0 4 0 1 0 4 0 1 0 3 0 1 2 5 0 5 2 5 0 5 2 5 0 5 8 2 0 5 5 5 0 5 7 7 0 5 Table 12 10 RF voltages along the initial RF signal pa...

Страница 384: ...0 3 0 1 0 3 0 1 0 3 0 1 0 3 0 1 0 3 0 1 0 2 0 1 3 3 0 5 3 3 0 5 3 6 0 5 12 5 9 4 20 8 Table 12 12 RF voltages along the initial RF signal path of the UHF radio H5 and H6 bands Power level W Frequency...

Страница 385: ...see Figure 12 14 9 Repair any fault revealed by the above checks Replace Q300 see Figure 12 14 if none of the other components is faulty 10 Confirm the removal of the fault and go to Final Tasks on pa...

Страница 386: ...ove checks reveal a fault go to Step 6 If they do not go to Task 12 in Biasing of PA Driver and PAs on page 360 6 Repair the fault Confirm the removal of the fault and go to Final Tasks on page 163 If...

Страница 387: ...ual Transmitter Fault Finding 25W 387 Tait Electronics Limited November 2007 Figure 12 15 Components of the interstage matching circuitry between the PA driver Q306 and the PAs Q309 and Q310 UHF shown...

Страница 388: ...older the outer sheath in the position shown in Figure 12 16 and solder the central wire to the other terminal of the test capacitor 5 Connect the test lead to the test set 6 Enter the CCTM command 32...

Страница 389: ...Fault Finding 25W 389 Tait Electronics Limited November 2007 Figure 12 16 Circuitry under the DIRC TOP can and the points for attaching the test lead and test capacitor UHF shown MOUNTING POINT FOR T...

Страница 390: ...r level to the maximum 6 Enter the CCTM command 101 x x 0 where x is the lowest frequency in hertz for maximum power as given in Table 12 8 A4 band Table 12 9 B1 band Table 12 10 C0 band Table 12 11 D...

Страница 391: ...e to the other terminal of the test capacitor 5 Connect the test lead to the test set 6 Enter the CCTM command 326 5 to set the transmitter power level to the maximum 7 Enter the CCTM command 101 x x...

Страница 392: ...00 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 12 17 Circuitry under the PIN TOP can and points for attaching the test lead and test capacitor UHF shown MOUNTING POINT FOR TEST...

Страница 393: ...et the transmitter power level to the maximum 4 Enter the CCTM command 101 x x 0 where x is the lowest frequency in hertz for maximum power as given in Table 12 8 A4 band Table 12 9 B1 band Table 12 1...

Страница 394: ...nding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 12 18 Components of concern on the bottom side of the board C0 D1 bands R390 R389 R3000 C319 R340 C345 R396 R3009 C...

Страница 395: ...er Fault Finding 25W 395 Tait Electronics Limited November 2007 Figure 12 19 Components of concern on the bottom side of the board A4 B1 H5 H6 bands B1 BAND COPPER PLATE VCO BOT CAN NB BOT CAN COPPER...

Страница 396: ...396 Transmitter Fault Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 12 20 Circuitry under the LPF TOP can top side VHF UHF...

Страница 397: ...d 101 x x 0 where x is the lowest frequency in hertz for maximum power as given in Table 12 8 A4 band Table 12 9 B1 band Table 12 10 C0 band Table 12 11 D1 band or Table 12 12 H5 H6 bands 6 Enter the...

Страница 398: ...398 Transmitter Fault Finding 25W TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 399: ...g the correct amount of RF power In the fifth case the transmitter will be operating normally Fault Diagnosis Procedures The procedures for diagnosing the above faults are given below in the following...

Страница 400: ...uired by IC201 1 Remove the board from the chassis 2 Remove the CDC BOT can 3 Measure the voltage 9V0 at pin 4 of IC201 see Figure 13 1 4 If the voltage is correct go to Task 2 If it is not go to Step...

Страница 401: ...escribed in Task 3 of Power Supply Fault Finding on page 174 4 Proceed to the section relevant to the fault exhibited Faulty Speaker Audio distorted or no speaker audio No Speaker Audio at Auxiliary C...

Страница 402: ...all unmute criteria are satisfied but there is either no speaker audio or the speaker audio is distorted There are four tasks Task 4 check audio power amplifier Task 5 check speaker outputs Task 6 che...

Страница 403: ...f it is not go to Task 7 5 Vary the volume control This should cause the signal level at the TP200 test point see Figure 13 2 to vary If it does go to Step 6 If it does not go to Task 6 6 Check the vo...

Страница 404: ...ed replace the board and go to Final Tasks on page 163 5 With the volume at maximum check each speaker output at pins 3 and 8 of IC202 see Figure 13 2 6 If the speaker outputs are correct the fault is...

Страница 405: ...ervice Manual CODEC and Audio Fault Finding 405 Tait Electronics Limited November 2007 Figure 13 3 Circuitry under the CDC TOP can and adjacent interface circuitry Junction of R234 and R235 Junction o...

Страница 406: ...fault and go to Final Tasks on page 163 If the repair failed or the fault could not be found replace the board and go to Final Tasks on page 163 5 Remove the CDC TOP can 6 Check the voltage at the ju...

Страница 407: ...00 Service Manual CODEC and Audio Fault Finding 407 Tait Electronics Limited November 2007 Figure 13 4 Circuitry under the CDC BOT can LO2 BOT CAN CAN FOR DIGITAL BOARD JUNCTION OF R218 AND IC204 CDC...

Страница 408: ...the signal is correct go to Step 4 If it is not either CODEC 1 IC204 or the digital board is faulty replace the board and go to Final Tasks on page 163 4 Check for continuity between the TP200 test p...

Страница 409: ...s there is no signal at pin 13 AUD TAP OUT of the connector The fault diagnosis procedure comprises two tasks Task 8 check signal from CODEC Task 9 check LPF and buffer amplifier in CODEC circuitry Th...

Страница 410: ...rnal options connector SK102 see Figure 13 5 alternatively the measurement point for CDC AUD TAP OUT shown in Figure 13 4 The signal should be 7 If the above signal is correct go to Step 8 If it is no...

Страница 411: ...8100 TM8200 Service Manual CODEC and Audio Fault Finding 411 Tait Electronics Limited November 2007 Figure 13 6 Circuitry in the vicinity of the auxiliary connector bottom side AUXILIARY CONNECTOR SK1...

Страница 412: ...ed on IC201 pins 1 to 3 see Figure 13 7 Repair any fault and conclude with Step 9 6 Check the voltage at pin 7 of IC201 see Figure 13 7 7 If the voltage is correct go to Step 8 If it is not check the...

Страница 413: ...100 TM8200 Service Manual CODEC and Audio Fault Finding 413 Tait Electronics Limited November 2007 Figure 13 7 Circuitry under the CDC BOT can LO2 BOT CAN CAN FOR DIGITAL BOARD JUNCTION OF R224 AND IC...

Страница 414: ...the CDC BOT can 2 With no RF signal applied check the voltage at pin 14 of IC201 see Figure 13 7 3 If the above voltage is correct go to Task 11 If it is not go to Step 4 4 Check the voltage at pin 12...

Страница 415: ...nd the frequency selected for channel 1 2 Apply a strong on channel signal 3 Check that a sine wave is present at the QN test point there is access through a hole in the IF TOP can see Figure 13 8 4 I...

Страница 416: ...t of the circuitry that is faulty 1 Apply a 1kHz audio signal of 20 mVpp at the microphone input on the control head 2 Enter the CCTM command 33 to place the radio in transmit mode The frequency is th...

Страница 417: ...TM8100 TM8200 Service Manual CODEC and Audio Fault Finding 417 Tait Electronics Limited November 2007 Figure 13 9 Circuitry in under the CDC BOT can LO2 BOT CAN CAN FOR DIGITAL BOARD...

Страница 418: ...found replace the board and go to Final Tasks on page 163 Task 14 Check Bias Network If the signal at the TP503 test point is incorrect but the other checks in the above tasks reveal no fault check t...

Страница 419: ...TM8200 Service Manual CODEC and Audio Fault Finding 419 Tait Electronics Limited November 2007 Figure 13 10 Circuitry under the CDC TOP can ITF AUD TAP IN JUNCTION OF R237 AND R241 JUNCTION OF R229 AN...

Страница 420: ...he CCTM command 32 to place the radio in receive mode 4 If the modulation is correct go to Step 5 If it is not go to Task 12 of Faulty Modulation on page 416 5 Apply a 1kHz AC coupled signal of 0 7Vpp...

Страница 421: ...ts around IC205 or else replace IC205 see Figure 13 10 5 Confirm the removal of the fault and go to Final Tasks on page 163 If the repair failed replace the board and go to Final Tasks on page 163 6 R...

Страница 422: ...422 CODEC and Audio Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 423: ...ommands in Table 14 1 on page 424 General The following applies for all fault finding procedures Important Do not disconnect or connect the control head while power is supplied to the radio To connect...

Страница 424: ...2 3 high none 1003 Keypad backlighting Activate keypad backlighting at specified intensity 1003 0 off 1003 1 low 1003 2 medium 1003 3 high none 1004 LCD backlighting Activate LCD backlighting at speci...

Страница 425: ...inding of the remote control head kit CCTM command Entry at keyboard Response on screen 1012 Remote kit turns the audio amplifier on and off 1012 0 off 1012 1 on none 1013 Mute audio amplifier mutes a...

Страница 426: ...L201 R205 and R206 for open or shorted contacts Replace if necessary Continue with Step 2 2 Check the 13 8V supply voltage 9 7V to 17 2V between pin 2 of the control head connector J103 and pin 8 of...

Страница 427: ...Check the 1 5V supply voltage at pin 4 of U203 If the signal is correct continue with Step 6 If the signal is not correct continue with Step 5 5 Check E203 for continuity If E203 is correct continue w...

Страница 428: ...fer to LCD Backlighting Faulty on page 430 Note If some of the LCD pixels are faulty usually complete rows or lines send CCTM command 1006 1 to activate all LCD pixels If some of the LCD pixels are fa...

Страница 429: ...to a good control head 3 Replace the LCD Carefully remove the protective plastic film from the LCD Take care not to scratch the soft polarizer material on the top side of the LCD 4 Use an oscilloscope...

Страница 430: ...e at pin 1 S1 of Q102 If the signal is correct continue with Step 3 If the signal is not correct refer to Power Supply Faulty on page 426 3 Send CCTM command 1004 3 to switch on LCD backlighting 4 Che...

Страница 431: ...the LCD tem perature sensor is faulty 2 Send CCTM command 1007 to read the temperature sensor value If the value does not correspond to the ambient temperature U601 is faulty 3 Check the 3 3V supply v...

Страница 432: ...ure the voltage at the point between the LED and the transistor If the voltage is incorrect replace the LED 4 Replace the corresponding transistor LED Intensity Faulty If the intensity of the LEDs is...

Страница 433: ...November 2007 3 Check the resistors R601 and R602 and replace if necessary If the resistors are okay the FPGA is faulty and the control head board must be replaced R601 2 2k R602 5 62k Figure 14 6 PCB...

Страница 434: ...2 Check the 13 8V supply voltage of the relevant branch 3 From top to bottom check the resistor the three LEDs and the transistor of the relevant branch for continuity All LEDs Faulty or Intensity Fa...

Страница 435: ...trol head board must be replaced 3 Check the signals at pins 6 C1 and 3 C2 of Q2 Check the signals at pins 1 E1 and 4 E2 of Q2 If any of these signals are incorrect Q2 is faulty 4 Check the resistors...

Страница 436: ...e CH ON OFF signal level from the radio at pin 9 of the control head connector J103 If the signal is approx 13V continue with Step 5 If near or at ground continue with Step 3 3 Visually inspect pin 9...

Страница 437: ...8100 TM8200 Service Manual Fault Finding of Control Head with Graphical Display 437 Tait Electronics Limited November 2007 Figure 14 10 PCB layout of the power on off key circuitry top side bottom sid...

Страница 438: ...h should be 3 3V The row side of the switch should be GND A successful press will cause transition on associated KEY_COL signal to low Note CCTM command 1009 can be used to monitor keypad press and re...

Страница 439: ...associated resistor and diodes for open or shorted circuits If one row of keys is faulty 1 Visually inspect the associated resistor for open or shorted circuits F2 key F4 key scroll up key R620 D602...

Страница 440: ...through two ferrite beads L105 and L106 If the speaker functions only intermittently or the audio level is low 1 Check the continuity from the speaker connector J104 to pin 18 SPK and pin 17 SPK of th...

Страница 441: ...TM8100 TM8200 Service Manual Fault Finding of Control Head with Graphical Display 441 Tait Electronics Limited November 2007 Figure 14 14 PCB layout of the speaker circuitry top side bottom side...

Страница 442: ...rcuitry of the main board refer to Faulty Speaker Audio on page 402 If the volume control works only intermittently works only at full volume or does not work at all 1 Check that the voltage between p...

Страница 443: ...M8100 TM8200 Service Manual Fault Finding of Control Head with Graphical Display 443 Tait Electronics Limited November 2007 Figure 14 16 PCB layout of the volume control circuitry top side bottom side...

Страница 444: ...With no PTT switch and hookswitch operated check whether pin 4 of J106 is 4V If the signal is correct continue with Step 2 If the signal is incorrect inspect R25 for open or shorted contacts Repair if...

Страница 445: ...TM8100 TM8200 Service Manual Fault Finding of Control Head with Graphical Display 445 Tait Electronics Limited November 2007 Figure 14 18 PCB layout of PTT circuitry top side bottom side...

Страница 446: ...446 Fault Finding of Control Head with Graphical Display TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 447: ...n page 159 General The following applies for all fault finding procedures Important Do not disconnect or connect the control head while power is supplied to the radio If the radio does not switch on w...

Страница 448: ...ontrol Head with 1 2 or 3 Digit Display TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 15 1 Top side of the control head board 2 digit control head shown pads for LCD pads...

Страница 449: ...8200 Service Manual Fault Finding of Control Head with 1 2 or 3 Digit Display 449 Tait Electronics Limited November 2007 Figure 15 2 Bottom side of the control head board 2 digit control head shown pi...

Страница 450: ...he space frame 6 Re assemble the control head board 7 Reconnect the control head loom to the control head and test the user interface If the fault has been removed return to Initial Tasks on page 155...

Страница 451: ...nd go to Step 4 If it is not replace IC7 and go to Step 4 4 Test the user interface If the fault has been removed return to Initial Tasks on page 155 If it has not the repair failed replace the contro...

Страница 452: ...r to check that the RST line at pin 6 of IC7 is high The level should be 3 3 V If it is go to Step 5 If it is not go to Step 4 4 Check for continuity in the LCD driver circuitry D22 not fitted for 3 d...

Страница 453: ...loom and test the keys If the fault has been removed return to Initial Tasks on page 155 If it has not go to Step 5 5 Replace the keypad 6 Re assemble the control head Reconnect the control head loom...

Страница 454: ...Initial Tasks on page 155 15 8 Volume Control Faulty If the volume control works only intermittently works only at full volume or does not work at all 1 Disconnect the control head loom 2 Check that...

Страница 455: ...PCB components of the radio body Figure 16 1 Figure 16 2 and Table 16 1 control head with graphical display Figure 16 3 and Table 16 2 control heads with 1 2 or 3 digit display Figure 16 4 Table 16 3...

Страница 456: ...456 Spare Parts TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 16 2 Spare parts of the radio body sheet 2 of 2 G 1 2 x3 3641z_01 1 x2 1 1 2 1 2 x2 1 1...

Страница 457: ...25W radio 2 2 346 10022 07 346 10030 08 1 Auxiliary connector SK101 1 240 02022 xx 1 Inner foam seal for auxiliary connector 1 362 01110 xx TMAA22 02 mech kit 1 Outer foam seal for auxiliary connector...

Страница 458: ...458 Spare Parts TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 16 3 Spare parts of the control head with graphical display C E F G G 1 H I J 1 1 1 1 1 1 x2 x4 D B 1...

Страница 459: ...J Space frame 1 319 30077 xx TMAA22 08 1 Speaker clamp 1 303 50111 xx TMAA22 08 1 Speaker 1 252 00011 xx TMAA22 08 1 LCD assembly including LCD seal b 1 TMAA22 95 x3 1 Main keypad 1 311 03121 xx TMAA2...

Страница 460: ...460 Spare Parts TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Figure 16 4 Spare parts of the control heads with 1 2 or 3 digit display x3 B C E Fx2 1 i j 1 1 h g 1 1 1 d...

Страница 461: ...19 30073 01 1 303 50111 xx TMAA22 01 and 90 i Speaker 1 252 00011 xx TMAA22 01 and 90 j Short light pipe 1 262 00003 xx TMAA22 01 and 90 1 Long light pipe 1 262 00004 xx TMAA22 01 and 90 1 Keypad 1 31...

Страница 462: ...07 1 1 319 30073 00 01 319 30073 02 H Front panel assembly 1 I Knob for volume control potentiometer 1 311 01054 xx J Speaker 1 252 00011 xx 1 Speaker clamp since April 2007 not for use with space fra...

Страница 463: ...pare parts of the RJ45 control head Pos Description Qty IPN B Control head board 1 XMAC30 C Control head loom with female female adaptor female female adaptor 1 219 02882 xx 210 00021 41 D 3 x 8 PT sc...

Страница 464: ...464 Spare Parts TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 465: ...Board 489 18 1 Operation 489 18 2 Installing the RS 232 Board 490 18 3 Interface Specification 492 18 4 PCB Information 493 19 TMAA01 05 and TMAA01 07 Options Extender Boards 497 19 1 Changing the Opt...

Страница 466: ...ecurity Bracket 527 24 6 Re Ordering Extra Parts 528 25 Installing a Remote Kit 529 25 1 Installation 529 25 2 Circuit Description 535 25 3 Servicing the Remote Kit Parts 536 25 4 PCB Information 538...

Страница 467: ...ne 589 32 1 Operation 589 32 2 Installation 589 32 3 Adjustment 590 32 4 Interface Specification 590 32 5 Circuit Description 591 33 TMAA10 02 Handset 593 33 1 Installation 593 33 2 Radio Programming...

Страница 468: ...gramming 608 36 5 Interface Specification 608 37 TMAA10 08 Desktop Microphone 609 37 1 Operation 609 37 2 Installation 609 37 3 Adjustment 610 37 4 Radio Programming 610 37 5 Interface Specification 6...

Страница 469: ...ions loom The high density 15 way D range connector mounted on the line interface board fits through the external options connector hole provided in the radio chassis 17 1 Operation One of the control...

Страница 470: ...e test equipment used when adjusting RV1 RV2 and RV3 Table 17 1 Line interface board adjustment points Function Selection 1 Selection 2 two wire audio interface DIP1 on DIP2 off four wire audio interf...

Страница 471: ...Information on page 476 explains the required input and output line interface connections Note A general description of IOP_GPIO lines used with the line interface board is given in Table 17 6 on page...

Страница 472: ...dure for R V1 R V2 and R V3 described in the following section 17 2 4 Adjusting RV1 RV2 and RV3 Setting the Keying Time Delay RV1 The keying time delay circuit is used to prevent the burst of noise oc...

Страница 473: ...3 Installing the Line Interface Board Note The line interface board link options must be set before the board is installed in the radio as the top side of the line interface board is not accessible o...

Страница 474: ...connector cavity 6 Screw the external options connector to the radio lid using the two screw lock fasteners h Tighten the fasteners to a torque of 0 9N m 8lbf in Important The external options connect...

Страница 475: ...line interface board b radio lid h screw lock fasteners c external options connector bung i mounting posts d foam seal j M3x8 self tapping screws e external options connector cavity 1 internal options...

Страница 476: ...This signal causes the radio to transmit This normally requires External PTT1 to be set up in the Digital tab of the Programmable I O form and the External PTT 1 tab of the PTT form GPIO2 Busy Gate Th...

Страница 477: ...AGND analogue ground 4 AUX_MIC_AUD not connected 5 RX_BEEP_IN not connected 6 AUD_TAP_IN AUD_TAP_IN Programmable tap point into the receive or transmit audio chain 7 RX_AUD not connected 8 RSSI not co...

Страница 478: ...c SK2 TXD AUD_TAP_OUT AGND DGND PTT FROM OPT RXD 13V8 AUD_TAP_IN BUSY 2 BUSY AUX GPIO5 KEYING PTT_IN BUSY GATE LINE IN LINE IN LINE OUT LINE OUT AGND 13V8_SW 11 2 1 3 12 9 4 5 6 SK1 15 14 10 11 2 1 3...

Страница 479: ...20dB relative to 600 Line Output Filter Response stopband 2 pole 6 pole 12dB octave f 4kHz 36dB octave f 4kHz 17 7 1 Radio With Line Interface Board Receiver Line Output Receiver Frequency Response Re...

Страница 480: ...quency Response Bandwidth Response relative to 1kHz 20 deviation below limiting 300Hz to 3kHz 1 3dB relative to 6dB octave Test Signal 0dBm line input audio tap T1 60 deviation at 1kHz Signal to Noise...

Страница 481: ...higher than necessary gain of the line driver Line out protection is provided by two zener diodes and the transformer T1 provides isolation The audio interface is capable of using a two or four wire...

Страница 482: ...s provided by U9 but if RS 422 is required U9 is removed and replaced by U2 and U10 Also resistors R15 16 43 and 47 need to be fitted 17 8 4 Power Supply The power supply for the line interface board...

Страница 483: ...OT323 R1 036 02100 03 RES Pwr 1218 10R 5 1W RV1 042 05100 06 Res Pre TH 10k 6mm Top R2 038 15100 10 RES 0603 10k 1 1 10W RV2 042 05100 06 Res Pre TH 10k 6mm Top R3 038 14100 10 RES 0603 1k0 1 1 10W RV...

Страница 484: ...6 1 D4 R1 B1 2 B2 R2 D6 1 E7 R3 D2 1 E12 R4 F8 2 G3 R5 E6 1 E6 R8 E6 1 D5 R9 C6 2 B3 R10 B6 2 A4 R11 C4 1 D2 R12 E6 1 E5 R13 E6 1 E5 R14 C7 1 E4 R15A A7 2 E8 R15 F8 2 G5 R16A A7 2 E8 R16 E8 2 F5 R17 E...

Страница 485: ...TM8100 TM8200 Service Manual TMAA01 01 Line Interface Board 485 Tait Electronics Limited November 2007 17 9 3 Line Interface Board Layout top side IPN 220 65202 04...

Страница 486: ...486 TMAA01 01 Line Interface Board TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 17 9 4 Line Interface Board Layout bottom side IPN 220 65202 04...

Страница 487: ...TM8100 TM8200 Service Manual TMAA01 01 Line Interface Board 487 Tait Electronics Limited November 2007 17 9 5 Line Interface Board Circuit Diagram...

Страница 488: ...488 TMAA01 01 Line Interface Board TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 489: ...ontrol lines 18 1 1 Hardware Flow Control Although the serial transmit and receive lines are dedicated connections on the internal options connector the RTS and CTS lines have to be assigned For hardw...

Страница 490: ...following instructions refer to items in the diagram on page 491 2 Remove the top cover and lid b from the radio to access the options cavity 3 Remove the external options connector bung c if it is f...

Страница 491: ...to be installed correctly in the radio s options cavity the internal options connector loom 1 must be looped in the way shown in the diagram on page 491 9 Plug the unattached end of internal options c...

Страница 492: ...tap point out of the receive or transmit audio chain DC coupled 3 AGND analogue ground 4 AUX_MIC_AUD Auxiliary microphone input with electret microphone biasing provided Dynamic microphones are not s...

Страница 493: ...1n 50v X7r 10 C18 018 14100 00 Cap 0603 1n 50v X7r 10 LK1 036 14100 10 RES 0805 1k 1 1 8W LK3 036 14100 10 RES 0805 1k 1 1 8W R1 038 15100 10 RES 0603 10k 1 1 10W R2 038 15100 10 RES 0603 10k 1 1 10W...

Страница 494: ...494 TMAA01 02 RS 232 Board TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 18 4 2 RS 232 Board Layout top side IPN 220 01740 01...

Страница 495: ...TM8100 TM8200 Service Manual TMAA01 02 RS 232 Board 495 Tait Electronics Limited November 2007 18 4 3 RS 232 Board Layout bottom side IPN 220 01740 01...

Страница 496: ...496 TMAA01 02 RS 232 Board TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 18 4 4 RS 232 Board Circuit Diagram...

Страница 497: ...der board configuration must be completed before the board is installed in the radio as the top side of the options extender board is not accessible once the board is screwed to the radio lid Importan...

Страница 498: ...t The maximum current for the 5V supply line is 400mA 19 1 2 RX_BEEP_IN Line If the RX_BEEP_IN line is required on the external options connector it must replace one of the following lines IOP_RSSI AU...

Страница 499: ...f it is fitted 4 On the inside of the radio lid place the foam seal d over the external options connector cavity e 5 With the top side of the options extender board f facing the radio lid guide the ex...

Страница 500: ...Figure 19 2 8 Plug the unattached end of internal options connector loom 1 into the internal options connector on the radio main PCB 9 Refit the radio lid and top cover to the radio and screw the ext...

Страница 501: ...product code TMAA30 01 Table 19 3 Internal options connector pins and signals Pin Connector Signal Description 1 13V8_SW switched 13V8 supply from the radio 2 AUD_TAP_OUT Programmable tap point out of...

Страница 502: ...I2 analogue RSSI output 15 IOP_GPIO13 programmable function and direction 14 IOP_GPIO2c programmable function and direction 13 IOP_GPIO3c programmable function and direction 10 IOP_GPIO4c programmable...

Страница 503: ...A TVS 36V SOD123FL D16 001 10360 00 DIODE SMF36A TVS 36V SOD123FL D17 001 10360 00 DIODE SMF36A TVS 36V SOD123FL D18 001 10099 01 DIODE BAV99W dual smsig D19 001 10099 01 DIODE BAV99W dual smsig IC2 0...

Страница 504: ...1 E4 1B3 J2 G4 1B3 J3 F4 1B4 L1 E9 1B10 L2 E4 1E3 L3 B2 1C3 L4 B2 1E4 L5 F4 1F3 L6 C3 1D4 L7 D4 1E4 L8 C3 1D3 L9 C9 1B11 L10 D7 1B7 L11 B9 1B12 L12 D2 1H3 L13 D2 1F3 L14 E1 1G3 L15 D6 1B7 L16 D1 1H12...

Страница 505: ...nual TMAA01 05 and TMAA01 07 Options Extender Boards 505 Tait Electronics Limited November 2007 19 4 3 Options Extender Board Layout top side 19 4 4 Options Extender Board Layout bottom side IPN 220 6...

Страница 506: ...BAV99W GND_OPT_ESD 470NF I OPAD 0 13V8_OPT_ESD 13V8_OPT_ESD 13V8_OPT_ESD BAV99W 0 10NF 10NF 10NF 0 0 0 0 23MAR07 CHRIS K 04A 01A 05A DNI DNI DNI 13V8_OPT_ESD 0 GND_OPT_ESD 0 5V0_REG CHRIS K ADAM D ADA...

Страница 507: ...y the radio programming Note The TMAA02 02 DTMF microphone is not suitable for use with PTT signalling An example of PTT signalling is leading ANI 20 1 Installation Installing the Microphone Important...

Страница 508: ...5kHz for narrow bandwidth radios 20 3 Radio Programming The following table shows the settings required for CH_GPIO1 in the Programmable I O form of the programming application When CH_GPIO1 is set t...

Страница 509: ...one connector and shows the interface between the DTMF microphone and the radio Table 20 2 DTMF microphone connector pins and signals Pin Signal Colour Description 1 not connected 2 13V8_SW red power...

Страница 510: ...ription The microphone has a standard 12 key telephone keypad When one of the keypad keys is pressed a DTMF tone specific to that key is generated on the MIC_AUD line pin 5 For the duration of the ton...

Страница 511: ...l display control head the TMAA02 07 kit is used refer to TMAA02 07 Concealed Microphone on page 519 21 1 Installation Important This equipment contains devices which are susceptible to damage from st...

Страница 512: ...e negative wire to AGND 1 Note The positive wire on the microphone capsule is identified by a red stripe 6 On the control head PCB remove R11 1 and solder P2 1 and P3 1 in the positions shown 7 Plug S...

Страница 513: ...ta from the control head shift register 3 OE enables the output of the shift register of the audio switch 4 CH_SPI_CLK SPI clock signal to clock microphone select data into concealed and dynamic micro...

Страница 514: ...Xstr SMD BC857BW PNP SOT323 Q3 000 10084 62 Xstr BC846S Dual SOT363 NPN Q4 001 10099 01 Diode BAV99w Dual Ss R1 038 14220 00 Res 0603 2k2 1 16w 5 R2 038 14680 00 Res 0603 6k8 1 16w 5 R3 038 14470 00...

Страница 515: ...TM8200 Service Manual TMAA02 06 Support Kit for Concealed and Dynamic Microphones 515 Tait Electronics Limited November 2007 21 4 2 Concealed and Dynamic Microphone Support Board top side IPN 220 017...

Страница 516: ...A02 06 Support Kit for Concealed and Dynamic Microphones TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 21 4 3 Concealed and Dynamic Microphone Support Board bottom side IPN 220 0...

Страница 517: ...TM8100 TM8200 Service Manual TMAA02 06 Support Kit for Concealed and Dynamic Microphones 517 Tait Electronics Limited November 2007 21 4 4 Concealed and Dynamic Microphone Board Circuit Diagram...

Страница 518: ...518 TMAA02 06 Support Kit for Concealed and Dynamic Microphones TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 519: ...to damage from static discharges Refer to ESD Precautions on page 112 for more information Removing the Radio Control Head To install the concealed microphone capsule the control head must be removed...

Страница 520: ...microphone cavity 4 On the control head board solder the negative wire to the COV MIC pad e and the positive concealed microphone wire to the COV MIC pad f Note The positive wire on the micro phone c...

Страница 521: ...r keys depend on the radio model as follows For detailed operating instructions refer to the radio user s guides TM8100 User s Guide MMA 00002 xx TM8235 User s Guide MMA 00051 xx TM8250 and TM8255 Use...

Страница 522: ...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 23 2 Radio Programming The radio does not nee...

Страница 523: ...es not need to be programmed to recognize the presence of a keypad microphone there are no fields in the programming application that need to be configured DTMF dialling is not available for radios wi...

Страница 524: ...e on the radio s microphone connector and shows the interface between the keypad microphone and the radio Table 23 1 Keypad microphone connector pins and signals Pin Signal Colour Description 1 RX aud...

Страница 525: ...he TMAA03 02 security bracket are illustrated in Figure 24 1 Figure 24 1 Parts of the TMAA03 02 security bracket Description Quantity B security bracket cradle base 1 E short mounting rails for TM8100...

Страница 526: ...erwise there is a risk that the whole assembly of the radio and secu rity bracket may become loose over time or as a result of serious impact Note Because some model control heads are taller than othe...

Страница 527: ...ty Bracket Remove the radio from the security bracket as follows 1 Open the slide locks by inserting the slide lock key into the keyhole Rotate the key 90 it will slip into a detent and pull The pull...

Страница 528: ...ay be installed at different times Part Part Number Quantity Security Crdl Key TM8 slide lock key 319 60004 XX1 1 Contact Technical Support for the exact IPN 2 Security Crdl Mtg Short TM8 short mounti...

Страница 529: ...not compatible with TMAA03 03 TMAC34 0T or TMAC34 1T control head interfaces 25 1 Installation Warning Mount the remote U bracket with the remote control head assembly and the U bracket with the radi...

Страница 530: ...e remote U bracket 5 Mount the U bracket in the required position and install the radio body in the U bracket 6 Route the remote cable e between the remote control head assembly and the radio body 25...

Страница 531: ...m the radio body The control head is now separate from the radio body 25 1 4 Installing the Torso Interface The torso interface must be installed onto the radio body in place of the control head 1 Scr...

Страница 532: ...emote U bracket in the chosen mounting position using the self drilling screws provided Use all four screws provided 25 1 6 Installing the Control Head Interface With the control head separated from t...

Страница 533: ...mportant When mounting the U bracket check whether the mounting surface needs to be reinforced Important Install the U bracket using at least four screws 1 If the U bracket is being mounted over a cur...

Страница 534: ...emote Cable Grommets Install both the remote cable grommets using the following procedure Important The remote cable grommets must be installed whenever the remote cable is plugged into the RJ45 socke...

Страница 535: ...November 2007 25 2 Circuit Description Figure 25 3 shows a block diagram of the remote control head installation The control heads contain circuit boards with RS 485 driver components and an audio amp...

Страница 536: ...able from the RJ45 connector 2 Release the clips of the PCB bracket E and remove the control head board B 3 Disconnect the torso interface loom C 4 Unscrew the four PT type screws D and remove the PCB...

Страница 537: ...carried out in reverse order of disassembly 1 Remove the remote cable from the RJ45 connector 2 Unscrew the seven PT type screws B and remove the PCB C 3 Remove the control head interface loom not ill...

Страница 538: ...A TH J101 240 10000 11 Conn SMD 18w Skt M Match Q101 000 10084 73 Xstr BC847BPNNPN PNP SOT363 R101 038 10000 00 Res 0603 Zero 0hm 1 16w 5 R102 036 03100 10 Res 2512 100R 5 1W R103 036 03100 10 Res 251...

Страница 539: ...1C4 D103 G4 1E2 D104 J4 1E3 D105 F4 1D4 1D3 D106 D4 1B2 D107 M4 1D7 E101 F3 1B2 E102 F4 1B3 E103 G1 1C3 E104 G1 1C3 E105 K3 1D1 E106 D3 1D1 E107 E4 1D2 E108 E4 1C2 E109 K1 1D5 F101 F3 1D2 J100 E4 1C1...

Страница 540: ...540 Installing a Remote Kit TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Board Layout IPN 220 02122 02...

Страница 541: ...TM8100 TM8200 Service Manual Installing a Remote Kit 541 Tait Electronics Limited November 2007 Circuit Diagram...

Страница 542: ...240 10000 11 Conn SMD 18w Skt M Match J3 240 00016 00 Conn RJ45 Shld 8P8C LP RA TH Q1 000 10561 60 XSTR BCX56 16 AF NPN SOT89 R1 038 13100 10 Res 0603 100R 1 10w 1 R3 038 15100 10 Res 0603 10k 1 10w...

Страница 543: ...TM8100 TM8200 Service Manual Installing a Remote Kit 543 Tait Electronics Limited November 2007 Board Layout IPN 220 02123 01...

Страница 544: ...544 Installing a Remote Kit TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Circuit Diagram...

Страница 545: ...racket with the radio body securely These units must not break loose in the event of a collision Unse cured radio units are dangerous to the vehicle occupants Caution Observe the installation warnings...

Страница 546: ...in the remote U bracket 5 Mount the U bracket in the required position and install the radio body in the U bracket 6 Route the remote cable e between the remote control head assembly and the radio bod...

Страница 547: ...ontrol head loom from the radio body The control head is now separate from the radio body 26 1 4 Installing the Torso Interface The torso interface must be installed onto the radio body in place of th...

Страница 548: ...Installing the Control Head Interface With the control head separated from the radio body the control head interface c must be installed on the rear of the control head 1 Undo the two Torx T 20 screws...

Страница 549: ...osition using the two thumb screws provided 26 1 7 Mounting the U Bracket and Installing the Radio Body Mounting the U Bracket Install the U bracket on any sufficiently flat surface using self drillin...

Страница 550: ...gs in the holes 2 Plug one end of the remote cable into the control head interface 3 Run the remote cable to the torso interface and plug it into the RJ45 connector without a bung Installing the Remot...

Страница 551: ...ics Limited November 2007 26 2 Circuit Description Figure 26 3 shows a block diagram of the remote control head installation Both control heads contain a circuit board with audio amplifiers and RS 485...

Страница 552: ...rder of disassembly 1 Release the clip of the PCB bracket E and remove the control head board B 2 Disconnect the torso interface loom C 3 Unscrew the four PT type screws D and remove the PCB bracket E...

Страница 553: ...onnector loom Re assembly is carried out in reverse order of disassembly 1 Unscrew the seven PT type screws B and remove the PCB C 2 Remove the control head interface loom not illustrated Figure 26 5...

Страница 554: ...04 001 10000 99 Diode SMD BAV99 D Sw SOT23 D110 001 10084 91 Diode SMD BZX84C9V1 Zen SOT23 D201 001 10000 99 Diode SMD BAV99 D Sw SOT23 D211 001 10000 99 Diode SMD BAV99 D Sw SOT23 D300 001 10000 99 D...

Страница 555: ...ld RJ45 Shortbody Plg 360 02022 00 Grommet Mic TMA Grid Reference List C1 D1 D7 C100 J3 E3 C101 L4 E3 C102 J4 E3 C103 J4 E3 C110 L4 F4 C300 M5 G2 C301 N5 G3 C310 M2 G4 C311 N2 G4 C312 M2 G5 C320 P4 D8...

Страница 556: ...556 Installing an Enhanced Remote Kit TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Board Layout IPN 220 01721 04...

Страница 557: ...TM8100 TM8200 Service Manual Installing an Enhanced Remote Kit 557 Tait Electronics Limited November 2007 Circuit Diagram...

Страница 558: ...0603 0R R21 038 10000 00 RES 0603 0R R30 038 13390 10 RES 0603 390R 1 1 10W R31 038 13390 10 RES 0603 390R 1 1 10W R40 036 00000 01 RES 1206 0R 5 0 25W R103 038 12100 10 RES 0603 10R 1 1 10W R104 038...

Страница 559: ...TM8100 TM8200 Service Manual Installing an Enhanced Remote Kit 559 Tait Electronics Limited November 2007 Board Layout IPN 220 01720 05...

Страница 560: ...560 Installing an Enhanced Remote Kit TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 Circuit Diagram...

Страница 561: ...TM8250 TM8255 extended remote upgrade kit installation instructions 402 00047 xx TMAA11 07 TM8250 TM8255 extended remote dual head upgrade kit with a standard microphone installation instructions 402...

Страница 562: ...nnector PL100 pins and signals Pinout Pin Signal name Description 1 AGND Analog ground 2 Not connected 3 Not connected 4 13V8_BATT 13V8 power input Table 27 2 Sockets SK201 SK202 SK203 pins and signal...

Страница 563: ...10081 06 IND 1806 BLM41P750S EMI suppn E8 057 10081 06 IND 1806 BLM41P750S EMI suppn E9 057 10081 06 IND 1806 BLM41P750S EMI suppn F1 265 10300 10 FUSE 1206 3A 63V IC1 000 10409 00 XSTR SMD BTS409L Mf...

Страница 564: ...564 TMAA03 31 Control Head Interface Box TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 27 2 2 Control Head Interface Box Board Layouts top side IPN 220 02174 03...

Страница 565: ...TM8100 TM8200 Service Manual TMAA03 31 Control Head Interface Box 565 Tait Electronics Limited November 2007 27 2 3 Control Head Interface Box Board Layouts bottom side IPN 220 02174 03...

Страница 566: ...9 R5 R7 C20 5 7 6 IC7 R23 C50 PL4HR SM15T30A 1NF 470NF BZX84 5 1V 1NF 47K 2 2UF 15V 1K BZX84 4 7K 1NF 1NF 220 220 TS912 CH_ON_OFF_OUT 13V8_SW RD_RS485 MIC_AUD BAT54AW 30V 03A RIAN DE ML DE RIAN 02A SS...

Страница 567: ...ead upgrade kit with a standard microphone installation instructions 402 00052 xx TMAA11 08 TM8250 TM8255 extended remote dual head upgrade kit with a keypad microphone installation instructions 402 0...

Страница 568: ...6V 10 0805 X7R C40 015 27100 08 CAP cer 1uF 16V 10 0805 X7R C41 015 27100 08 CAP cer 1uF 16V 10 0805 X7R C42 018 13270 00 CAP 270p 50V NPO 5 0603 C43 018 13270 00 CAP 270p 50V NPO 5 0603 C44 018 13270...

Страница 569: ...03 100k 1 1 10W R32 038 14220 10 RES 0603 2K2 1 1 10W R33 038 14220 10 RES 0603 2K2 1 1 10W R34 038 16100 10 RES 0603 100k 1 1 10W R35 038 16100 10 RES 0603 100k 1 1 10W R36 038 16100 10 RES 0603 100k...

Страница 570: ...570 TMAA03 34 Extender Box TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 28 2 2 Extender Box Board Layouts top side IPN 220 02180 02...

Страница 571: ...TM8100 TM8200 Service Manual TMAA03 34 Extender Box 571 Tait Electronics Limited November 2007 28 2 3 Extender Box Board Layouts bottom side IPN 220 02180 02...

Страница 572: ...2_700C MOUNTING AGND DGND TS912 100NF 100NF 100NF 100NF 100NF 100NF 100NF 100NF 27K 4 7UF 100K 100K 1K 270PF 8V 2 2NF 2 2K 1UF 2 2K 1UF 270PF 470NF 1NF BAV99 4V 68 1K 100NF 100NF TS912 270PF 47K 47K M...

Страница 573: ...ansmit tail is required settings in the following forms must be configured in both radios PTT form TM8100 radios only refer to Table 29 4 Basic Settings form Subaudible Signalling tab TM8200 radios an...

Страница 574: ...Table 29 2 Crossband settings in the Programmable I O form Digital tab Pin Direction Label Action Active Debounce Signal State Mirrored To AUX_GPI1 Input PTT_INS External PTT 1 Low 10 None None AUX_G...

Страница 575: ...tolerance of 200Hz on a 12 5kHz narrow bandwidth channel 29 4 Interface Specification The following table and diagram summarizes the signals used for the crossband linking cable on the radios auxilia...

Страница 576: ...6V3 10 X5R C10 018 27470 00 CAP CER 0603 4U7 6V3 10 X5R J1 240 00031 00 PLG 15wy drng UL CSA pnl mtg R1 038 14120 10 RES 0603 1k2 1 1 10W R2 038 14120 10 RES 0603 1k2 1 1 10W R3 038 14120 10 RES 0603...

Страница 577: ...IN GPIO6 MIC_AUD GPIO4 GPI2 1 2K 5V 78L05 C4 U1 1 3 4 5 15 13 12 8 9 11 14 10 7 2 6 16 C7 C8 C5 C6 C1 P1 P6 P7 P4 P2 R6 C10 P8 P3 P5 J1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 U2 2 3 6 7 8 1 TP1 TP2 TP3 R...

Страница 578: ...578 TMAA04 04 Crossband Linking Cable TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 579: ...uxiliary connector is removed Therefore once the TMAA04 05 ignition sense kit is installed mount the radio in areas where it is not exposed to water dust or other environmental hazards 30 1 Hardware C...

Страница 580: ...ield set how the radio responds when the radio receives a signal to power on from the vehicle s ignition signal Select either Power On or Previous State Programmable I O form Digital tab In the Digita...

Страница 581: ...nt where there is water dust or other environmental hazards 31 1 Cross band Repeater Operation The external interface cable in the TMAA04 06 kit is used to connect the auxiliary ports of two radios al...

Страница 582: ...d return before re transmission resumes Priority scanning also affects the transmit timer during cross band repeater transmissions If a non priority channel in the group is captured the radio will re...

Страница 583: ...ansmission will occur However if the other radio then receives a valid signal the radio will attempt to re broadcast this over the other signal Set Tx Inhibit to Busy or Mute to prevent this re transm...

Страница 584: ...cable s external interface connector can be used to connect a TM8260 dual radio system to the vehicle s ignition signal This will turn the radio system off when the ignition key is off to avoid drain...

Страница 585: ...rive the same external alert device Connect the pins separately to drive separate external alert devices Important The high current sink capability of the radio s auxiliary lines cannot be accessed wi...

Страница 586: ...e 7 AUD_TAP_IN audio tap input 8 13V8 power supply to GPS device 9 AUX_GPIO6 external alert 12 AUX_GPI1 PTT input 13 AUD_TAP_OUT audio tap output 15 AGND ground Table 31 8 GPS socket pins and signals...

Страница 587: ...3k 1 1 10W R6 038 14680 10 RES 0603 6k8 1 1 10W R7 038 13120 00 RES 0603 120R 5 1 10W R9 036 14680 10 RES 0805 6k8 1 1 8W R11 038 10000 00 RES 0603 0R 5 1 10W SA 938 10001 01 SMT Alloy Lead Free sac 2...

Страница 588: ...GND GPI2 AUD_TAP_OUT GPIO6 IGN SENSE SIGNAL FROM VEHICLE KEY SWITCH R2 NOT FITTED R8 NOT FITTED R10 NOT FITTED 33K Fri Apr 07 14 09 31 2006 M LEAN BC847BS 6 8K BC847BS 1NF 120 82 0 47K 33NF SMF28A PD4...

Страница 589: ...e microphone and release the PTT key when you have finished talking Note The monitor key can be locked in the on position To do this hold the monitor key down and slide the monitor key towards you The...

Страница 590: ...aximum by rotating R5 counterclockwise 32 4 Interface Specification The following table and diagram summarizes the signals used for the desktop microphone on the radio s microphone connector and shows...

Страница 591: ...sule and contains a pre amplifier Q1 to boost the microphone level to that required by the radio Power for the pre amplifier is provided by the electret microphone bias circuit within the radio R5 is...

Страница 592: ...592 TMAA10 01 Desktop Microphone TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 593: ...from any connected remote speaker and from the handset earpiece Using private handset mode the radios internal and external speakers are muted and the call can only be heard from the handset earpiece...

Страница 594: ...installed when ever the handset to radio cord is plugged into the microphone socket When installed the grommet has two functions to prevent damage to the microphone socket when there is movement of th...

Страница 595: ...rammable I O form of the radio s programming application Refer to the online help of the programming application for more information Note If private handset mode is programmed then no audio will be h...

Страница 596: ...een the handset and the radio Table 33 5 Handset microphone connector pins and signals Pin Signal HandsetPCB Connector Colour Description 1 RX_AUD 8 brown receive audio to handset 2 not connected 3 no...

Страница 597: ...are included with each kit along with four mounting screws and washers 34 1 Installation Remote Speaker Mounting 1 Choose a mounting position for the remote speaker where it will not interfere with t...

Страница 598: ...s the positive wire and receptacle into the position nearest to the red wire and the negative wire and receptacle into the position nearest to the black wire 2 TMAA10 06 remote speaker 40W 50W radios...

Страница 599: ...Hands Free Kit Your radio may able to detect the sound of your voice so that you can make calls without using the PTT key Voice operated transmit VOX is turned on and off either by using a function ke...

Страница 600: ...be taken to avoid routing any cables near vehi cle pedal controls steering column and other moving parts Installing the Remote Microphone 1 Choose one of the three mounting options provided for the r...

Страница 601: ...ssion When Mic On Hook field is selected in the PTT tab of the PTT form Remote PTT Settings in the Programmable I O Form The following table shows the settings required in the Programmable I O form of...

Страница 602: ...d hands free kits on the radio s auxiliary connector and shows the interface between the kits and the radio Table 35 3 VOX settings in the PTT form External PTT 2 or VOX tab Field Setting EPTT2 or VOX...

Страница 603: ...ce voltage for the regulator is provided by AUX_GPIO4 line The remote microphone signal is fed via AUX_MIC_AUD and an input selector to the radio s internal microphone amplifier The microphone input s...

Страница 604: ...W NPN SOT323 Q2 000 10085 71 Xstr SMD BC857BW PNP SOT323 Q3 000 10084 71 Xstr BC847BW NPN SOT323 Q4 000 10084 71 Xstr BC847BW NPN SOT323 R1 038 14220 00 Res 0603 2k2 1 16w 5 R3 038 14390 10 Res 0603 3...

Страница 605: ...TM8100 TM8200 Service Manual TMAA10 04 Remote PTT Kit and TMAA10 05 Hands Free Kit 605 Tait Electronics Limited November 2007 35 7 2 Pre Amplifier Board Layout IPN 220 01711 01 IPN 220 01711 01...

Страница 606: ...606 TMAA10 04 Remote PTT Kit and TMAA10 05 Hands Free Kit TM8100 TM8200 Service Manual Tait Electronics Limited November 2007 35 7 3 Pre Amplifier Board Circuit Diagram...

Страница 607: ...ar press the TRANSMIT key PTT to transmit Speak clearly into the microphone and release the TRANSMIT key when you have finished talking Note The MONITOR key can be locked in the on position To do this...

Страница 608: ...36 4 Radio Programming The desktop microphone has an internal pre amplifier Therefore the dynamic microphone support in the UI Preferences form of the radio s programming application should not be ena...

Страница 609: ...heck whether the channel is clear When Monitor is active the MONITOR LED lights up Press the MONITOR key again to turn Monitor off The LED goes out If the channel is clear press the PTT key to transmi...

Страница 610: ...ic Gain field to Normal and clear the Enable Options Board Preamp check box These are both default settings TM8200 radios In the Audio tab clear the Dynamic Mic Support check box This is the default s...

Страница 611: ...itor check box and select an option in the Hookswitch Monitor Overrides field Conventional Networks Basic Settings form Receiver Monitoring tab Refer to the online help of the programming application...

Страница 612: ...612 TMAA10 08 Desktop Microphone TM8100 TM8200 Service Manual Tait Electronics Limited November 2007...

Страница 613: ...ions test set The diagram below shows the front panel of the test unit 38 1 Test Equipment Setup The diagram on the following page shows how the test unit is connected to the radio the test PC and the...

Страница 614: ...connector BNC computer connector RJ12 serial port DB9 speaker connector banana plugs AC input BNC audio monitor out BNC AUDIO IN HI BNC AUDIO OUT BNC RF in out N type power connector TMAA23 02 cable...

Страница 615: ...witch 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 modulatio...

Страница 616: ...disconnect the radio s internal speaker on mobiles If the switch is set to Speaker or Load this simulates an external speaker being connected in parallel to the radio s internal speaker With all sett...

Страница 617: ...1 032 31820 01 Res M F Pwr 17x5 8e2 5 2 5w R2 032 31820 01 Res M F Pwr 17x5 8e2 5 2 5w R3 030 55120 20 Res Flm 4x1 6 12k 5 0 4w R4 030 53560 20 Res Flm 4x1 6 560e 5 0 4w R5 030 54270 20 Res Flm 4x1 6...

Страница 618: ...nly Refer to the parts list for actual values used SPEAKER 4 SPKR 8 2 SHOULD BE DPTT IPN 032 31820 01 IPN 250 00010 19 not part of PCB not fitted not fitted not fitted Portable Mobile Mobile Portable...

Страница 619: ...FY REVERSE COMPILE OR REVERSE ASSEMBLE ANY SOFTWARE OR FIRMWARE IN WHOLE OR PART Important Notice THE SOFTWARE OR FIRMWARE MAY CONTAIN OPEN SOURCE SOFTWARE COMPONENTS OPEN SOURCE COMPONENTS OPEN SOURC...

Страница 620: ...SOLE AND TOTAL LIABILITY FOR ANY SUCH CLAIM SHALL BE LIMITED AT THE OPTION OF TAIT TO THE REPAIR OR REPLACEMENT OF THE SOFTWARE OR FIRMWARE OR THE REFUND OF THE PURCHASE PRICE OF THE SOFTWARE OR FIRM...

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