SRM9000X8 800MHz Mobile Radio Transceiver Revision 2 Hardware SERVICE MANUAL TNM-M-E-0022 ISSUE 1.0 January 2008 ISO9001 Lic.
SRM9000X8 800MHz Mobile Radio Transceiver Rev 2 Hardware TNM-M-E-0022 Iss. 1.
SRM9000X8 800MHz SERVICE MANUAL TABLE OF CONTENTS APPENDICES ..............................................................................................................................................III DECLARATION .......................................................................................................................................... IV COPYRIGHT ............................................................................................................................................
SRM9000X8 800MHz SERVICE MANUAL 3.2 3.3 3.4 3.5 3.6 4. 4.1 3.1.3 Quadrature Demodulator.....................................................................................................21 3.1.4 Receiver Audio Processing .................................................................................................23 TRANSMITTER ................................................................................................................................23 3.2.1 Drivers and PA Stages ............
SRM9000X8 800MHz SERVICE MANUAL 4.1.21 5. CUSTOMERS RADIO PERSONALITY DATA ..................................................................53 REPLACEABLE PARTS ..................................................................................................................54 5.1 REPLACEABLE PARTS ....................................................................................................................54 6. 6.1 SCHEMATICS.......................................................................
SRM9000X8 800MHz SERVICE MANUAL Declaration The performance figures quoted are subject to normal manufacturing and service tolerances. The right is reserved to alter the equipment described in this manual in the light of future technical development. Copyright All rights reserved. No part of this publication may be reproduced in any form or by any means without the prior permission of TMC Radio.
SRM9000X8 800MHz SERVICE MANUAL Document History Issue Date Comments 1 January 2008 Initial issue List of Associated Publications Document No. Description Issue TNM-I-E-0005 SRM9000 Series Installation Instructions 6 TNM-P-E-004 Selcall Product Manual 2.
SRM9000X8 800MHz SERVICE MANUAL Warnings and Cautions WARNING Compliance with RF Energy Exposure Standards: To minimise exposure to RF fields during equipment service and repair, the antenna terminal of the SRM9000 radio should be connected to a suitable non-radiating RF load when the transmitter is in use. WARNING SRM9000 radio equipment is to be connected only to 12-volt negative earth systems. In vehicles with a 24-volt supply, an approved 24V/12V converter must be used.
SRM9000X8 800MHz SERVICE MANUAL 1. INTRODUCTION 1.1 GENERAL The SRM9000X8 800MHz mobile transceiver is designed for PMR operation in analog systems or P25 in digital systems. The SRM9000X8 transceiver can be used with either the SRM9022 Graphics Display Handset or the SRM9030 System Level Remote Control Head with Alpha capability. 1.2 SCOPE This manual provides technical specifications, description and servicing details for the SRM9000 mobile radio transceiver. 1.
SRM9000X8 800MHz SERVICE MANUAL 1.4 PRODUCT VARIANTS AND FACILITIES Product variants and facilities are detailed in Tables 1-1, 1-2 and 1-3.
SRM9000X8 800MHz SERVICE MANUAL Table 1-2 Conventional-PMR Variants Feature: Model: 9022 9030 Channels 1000 1000 Signalling CTCSS/DCS Selcall CTCSS/DCS Selcall Attack Operation Yes Yes DTMF Encode Yes Yes PTT Limit Timer with warning beeps Yes Yes Busy Channel Lockout Yes Yes Yes Yes PTT Inhibit on Busy Scanning Voting 124 groups of up to 16 channels per group, 4 user defined scan groups. Up to 200 groups consisting of up to 16 channels per group.
SRM9000X8 800MHz SERVICE MANUAL Software Versions and Naming There are various associated items of Software (SW) required for the SRM9000 radio and programmer to operate. This section simply defines the naming rules of the SW files to allow identification and conformity. This allows different versions of SW to be distributed and co-exist without confusion. The SRM9000 Transceiver has three items of SW for digital and analog PMR, Trunking and Alignment.
SRM9000X8 800MHz SERVICE MANUAL a_q 9022 PMR with ASI-G Map27option board bo Transceiver Boot-code bc Transceiver Boot-Backup-code bf Transceiver PLA-code ba Transceiver PLA-Backup-code Note. The above file names are not stored within the code. As a consequence, when the radio is read by the FPP, the FPP will display version numbers and release dates for the Backup, Startup, PMR and DMAP codes. The Bootloader, PLA Backup and PLA codes show release dates only.
SRM9000X8 800MHz SERVICE MANUAL 1.4.4 Version Number This is a 3-digit number allocated by Engineering to identify the SW version. e.g. 1.4.5 103 = Version 1.03 Exclusions The Programmer SW does not follow the above rules as it is a PC based Program and its version number can be easily identified by starting the SW. Later releases of SW will be backward compatible, unless deliberately not so, in which case a different directory structure/path may be implemented. 1.4.
SRM9000X8 800MHz SERVICE MANUAL For Software loaded in the radio, information can be read from the Transceiver and displayed via the Programmer function: Options : Radio_Information SRM9030 Control Head SW can be displayed on the Control Head by holding the ‘3’ button down when the radio is switched on. SRM9022 Handset SW can be displayed by pressing the top side button when the radio is switched on. 1.4.
SRM9000X8 800MHz SERVICE MANUAL Transceiver SW Description, Start-up and Backup-Software 1.4.
SRM9000X8 800MHz SERVICE MANUAL 1.6 CHASSIS ASSEMBLY Important Note! 1.6.1 Torque Settings Assembly of 'Chassis' (Inner Extrusion) to 'Outer Extrusion': 1.4 Nm (PA x 2), 1.25Nm (Others x 3) Assembly of 'Front' and 'Rear' end-caps to 'Outer Extrusion': 1.4 Nm. 1.6.2 Thermal Compound Application Just enough thermal compound should be applied to the PA tray to provide good thermal contact with the chassis. Note. If thermal compound is old and difficult to spread, it should be discarded. 1.6.
SRM9000X8 800MHz SERVICE MANUAL 1.7 SPECIFICATION 1.7.1 General Operation Single frequency simplex or two-frequency simplex (half-duplex). Modulation Frequency modulation (phase) F3E and F1E. Operational Temperature Range -30°C to +60°C Storage Temperature Range -40°C to +80°C Supply Voltage Requirements 10.8V to 16.32V DC negative earth (13.8V nom.
SRM9000X8 800MHz SERVICE MANUAL Regulatory Approvals FCC ID: STZSRM9000X8 IC: 7068A-M9000X8 1.7.2 Transmitter Power Output Any two levels are programmable: High Power: Low Power: 25W 1W Adjustable down to 1W Adjustable up to 25W Carrier Attack Time Less than 50 ms Duty Cycle 1 minute transmit: 4 minutes receive Spurious Emissions < -20dBm FM Hum & Noise 25kHz Channel Spacing: >40dB Audio Frequency Distortion < 5%.
SRM9000X8 800MHz SERVICE MANUAL 1.7.3 Receiver Sensitivity Analog C4FM < -117.
SRM9000X8 800MHz SERVICE MANUAL 1.7.4 Signalling 1.7.4.1 CTCSS 38 standard CTCSS Tones and 13 non-standard tones are supported as per the table below: Standard Standard Standard Non-Standard Frequencies Frequencies Frequencies Frequencies 67.0 107.2 167.9 69.3 71.9 110.9 173.8 150.0 74.4 114.8 179.9 159.8 77.0 118.8 186.2 165.5 79.7 123.0 192.8 171.3 82.5 127.3 203.5 177.3 85.4 131.8 210.7 183.5 88.5 136.5 218.1 189.9 91.5 141.3 225.7 196.6 94.8 146.2 233.
SRM9000X8 800MHz SERVICE MANUAL CTCSS Decoder Bandwidth Complies with TIA-603 part 3.4.6 Deviation Sensitivity Less than 6.0% of system deviation (for decode with full RF quieting) Noise Immunity Less than 500ms dropout per minute at 10dB SINAD (CTCSS tone deviation 10% of system deviation. RF deviation 60% at 1000Hz). False Decode Rate Less than 1 false decode per 30 minutes (no carrier input).
SRM9000X8 800MHz SERVICE MANUAL Selcall Tone Frequency Table Tone CML ST500 SIGTEC SIGTEC SEPAC CML ST500 SIGTEC CCIR CCIR CCIR CCIRH CCIR EEA EEA EEA 0 1981 1981 1981 1981 1981 1981 1981 1981 1 1124 1124 1124 1124 1124 1124 1124 1124 2 1197 1197 1197 1197 1197 1197 1197 1197 3 1275 1275 1275 1275 1275 1275 1275 1275 4 1358 1358 1358 1358 1358 1358 1358 1358 5 1446 1446 1446 1446 1446 1446 1446 1446 6 1540 1540 1540 1540 1540 1540 1
SRM9000X8 800MHz SERVICE MANUAL Tone SEPAC ST500/CML ST500 SIGTEC SIGTEC SEPAC ST500 ZVEI-3 ZVEI-3 DZVEI DZVEI NATEL EIA EIA EIA 0 2200 2400 2200 2200 1633 600 600 600 1 970 1060 970 970 631 741 741 741 2 1060 1160 1060 1060 697 882 882 882 3 1160 1270 1160 1160 770 1023 1023 1023 4 1270 1400 1270 1270 852 1164 1164 1164 5 1400 1530 1400 1400 941 1305 1305 1305 6 1530 1670 1530 1530 1040 1446 1446 1446 7 1670 1830 1670 1670 12
SRM9000X8 800MHz SERVICE MANUAL 1.7.4.4 DCS Data rate 134 bits per second, frequency modulated 7.46ms/bit 171.
SRM9000X8 800MHz SERVICE MANUAL Environmental 1.7.5 Note: Operation of the equipment is possible beyond the limits stated but is not guaranteed. Operational Temperature -30°C to +60°C MIL-STD-810F Methods 501.4 and 502.4, Proc II Storage Temperature -40°C to +80°C MIL-STD-810F Methods 501.4 and 502.4 Proc I Vibration Stability MIL-STD-810F Method 514.5C-1, Proc I, Cat 4 and USFS Vibration Standard Cold MIL-STD-810F Method 502.4, Proc II High Temperature MIL-STD-810F Method 501.
SRM9000X8 800MHz SERVICE MANUAL 2. SERVICE PHILOSOPHY 2.1 SERVICE CONCEPT The SRM9000 series has been designed to provide low cost analog and digital speech mobile transceivers, using common core electronics, software and interfacing. It is a requirement that once the customer has purchased equipment, TMC Radio can follow this by providing an ongoing, high level of customer support together with a competitive and professional servicing activity.
SRM9000X8 800MHz SERVICE MANUAL The customer undertakes not to disclose any part of the software to third parties without the Company's written consent, nor to copy or modify any software. The Company may, at its discretion, carry out minor modifications to software. Major modifications may be undertaken under a separate agreement, and will be charged separately.
SRM9000X8 800MHz SERVICE MANUAL 3. 3.1 TECHNICAL DESCRIPTION RECEIVER Refer to Figure 3-1. 3.1.1 Front End Filters and RF Amplifier The receiver input signal from the antenna passes through the harmonic filter and antenna T/R switch. With the mobile in receive mode, diodes D580, D582 and D583 in the antenna switch are reverse biased allowing the receiver input signal to be coupled through to the receiver front-end with minimal loss.
© TMC Radio 2008 page 22 SPKR_OUT 2 SPKR_OUT 1 AUDIO_OUT 3 (Option Audio) AUDIO_OUT 1 (Option Audio) AUDIO_OUT 2 ( H/S Audio) Antenna Filter L592,L593 & L594 From PLA Speaker Amp U805 EN 3 Rx Audio Mode3 U806B EN 1 Rx Audio Mode1 U806C Antenna Switch D581/ 582/D583 To TX PA . CPP SPKR_ON Deemphasis Network AF Amp U802A EN 2 RF Amp Q404 TUNE_1 & 2 RX VCO Q623 Rx Audio Mode 2 U302C Speaker Switch Q810/ 811/Q813 .
SRM9000X8 800MHz SERVICE MANUAL 3.1.4 Receiver Audio Processing The baseband audio from the IQ Demodulator is applied to a differential amplifier (U941A/ U941B) that converts the balanced demodulator I and Q output signals to unbalanced inputs for the CODEC (U800). All receiver audio processing and filtering functions are performed by the CODEC under the control of the DSP.
SRM9000X8 800MHz SERVICE MANUAL 3.2.2 Power Control The final output power is stabilised by a power control feedback loop. A printed circuit transmission line, L561, resistor R560, diodes D561A and D561B, and other associated components, form the power detector. Comparator U551A and associated components provide the power setting and power control functions. Forward and reverse power is sampled by the power detector and applied as a DC voltage to the inverting input of the comparator.
© TMC Radio 2008 page 25 DATA_EN Audio Gate U801B TX_MOD ADC/DAC/ CODEC U800 I Q TX_MODE RX/TX AF Switch U801C TX/RX Switch D641/ Q642 TX/RX AF Control From PLA VCO Buffer Q631/ Q632 From PLA/DSP RX VCO Q623 To RX Mixer LO1_RX TX_LO2 TX Mixer Switch U801A MOD_SW Internal MIC/ External Audio Control From PLA RX_LO TX Buffer Amp Q670 Switch D683/ D684 TX Buffer Amp Q521 External Accessory Audio Standard Microphone 851 - 870 MHz Switch D681/ D682 806 - 825 MHz TX Driver Q531a Curre
SRM9000X8 800MHz SERVICE MANUAL 3.3 FREQUENCY SYNTHESISER 3.3.1 General Refer to Figure 3-3. The frequency synthesiser consists of the RX VCO, the second local oscillator VCO (90MHz), loop filters, varactor positive bias generator, reference oscillator, external divider and an integrated fractional N phase locked loop IC (U721). 3.3.2 PLL The PLL is a high performance delta-sigma fractional-N device with an auxiliary integer-N PLL (U721).
SRM9000X8 800MHz SERVICE MANUAL The divided reference signal is differentiated and discharges C778 via Q771, after which Q771 is turned off allowing C778 to recharge via constant current source Q772. The Schmitt Trigger comprising Q774, Q775 and Q776, converts the modulation combined with the sawtooth ramp, to a square wave output, the duty cycle of which is controlled by the ramp slope and modulation.
RX LO To © TMC Radio 2008 page 28 MOD_BAL AFC Synth Q632 Q623 TX_MOD 2 VCAP_BIAS Q773 Q771- Generator U710 Divider Divide 32 DSP_CLK Q776 TCXO U712 PLL U711 TCXO U701 Q751 AFC_SW Select Reference Switch From PLA REF_SHIFT From PLA D642 D641/ Switch Q631/ RX VCO TX/RX VCO 5V_RX Buffer Q640 Buffer SYNTH Q783 Q780- Supply VCO Bias Filter PLL Loop Q774- REF U721 Synthesiser CPRF U761A Prog.
SRM9000X8 800MHz SERVICE MANUAL 3.4 CONTROL Refer to Figure 3-4. DSP and PLA 3.4.1 The SRM9000 transceiver operates under the control of a DSP (U201) and PLA (U300) combination that, together with a number of other dedicated devices, perform all the operational and processing functions required by the radio. The PLA is configured by the DSP under software control to provide the following functions: 3.4.
SRM9000X8 800MHz SERVICE MANUAL Analog voltages to be monitored such as PLL Loop Voltage (LOOP_VOLTS), battery voltage (BAT_SENSE), transmitter current (CURRENT_SENSE) and external sense (EXT_SENSE) are connected to the inverting inputs. The analog voltages are compared with the ramp voltage as they increase, and the comparator switches at the point where the input voltage exceeds the ramp. The PLA compares the time at which this occurs with the PWM signal and converts it to a binary value. 3.
© TMC Radio 2008 BAT_SENSE DSP_CLK Reset U200 Rx Audio page 31 CODEC U800 DSP U201 Tx Audio Synthesiser U721 Flash Memory U202 LOCK PLA U300 AFC_SW AFC TX_Power MOD BAL IF_GAIN Tune 2 Tune 1 VCAP_ADJ ALC_SET TX_DATA RX_DATA Bit Inputs Bit Outputs Serial port Serial port 1. PTT_IN1 2. PTT_IN2 3. GAIN 4. DC PWR_STATUS 5. PWR_SENSE 1. SPKR_ON 2. PA_ON 3. TX_MODE 4. OPTION ON/OFF 5. PWR_OFF 6. ANALOG GATE CONTROLS 7.
SRM9000X8 800MHz SERVICE MANUAL 3.6 POWER SUPPLIES 3.6.1 Power On Function The unregulated 13.8V DC input (13V8_UNSW_F) is routed directly to all high current devices and is then switched via FET (Q900) to provide BAT_SW supply for all other circuits. The output from Q900 feeds three low dropout series regulators and switched battery voltage. These regulated supplies power auxiliary supplies as well as the negative and positive voltage generators.
SRM9000X8 800MHz SERVICE MANUAL • PLA U300 • DSP U201 • Flash U202 • Digital supply for CODEC U800 Regulated 3.3V supply (3C3) • Analog supply for CODEC U800 Regulated 3.3V supply (3Q3) • I/Q demodulator U481 Regulated 3.3V supply (3P3) • Digital supply for PLL U701 Unregulated 13.8V (13V8_UNSW) • Tx PA module U500 • Antenna changeover switch Q571/572/573 3.6.2.4 2.5V Regulator U903 Regulated 2.5V supply (2V5) • DSP core U201 • PLA core U300 3.6.2.
SRM9000X8 800MHz SERVICE MANUAL 4. ALIGNMENT (LEVEL 3 SERVICE ONLY) 4.1 GENERAL Caution Preparing the radio for alignment will erase from the radio all customer PMR and Trunking configuration data (channel, signalling information etc). The only data retained by the Alignment Tool is the factory alignment data for the radio (DAC settings for Tx power, front-end tuning, etc).
SRM9000X8 800MHz SERVICE MANUAL Calibration sequence On a set that has not previously been calibrated or in which the calibration has been corrupted, preset parameters should be initially loaded into the radio for optimum alignment, after which the calibration steps must be carried out in the following order. These preset parameters may be obtained by reading a previously aligned radio or by loading predetermined default values.
SRM9000X8 800MHz SERVICE MANUAL 4.1.3 Preset Parameters The table below defines the preset alignment settings for the radio DAC’s. These will be programmed into the radio prior to performing an initial alignment. The Fixed values are not altered by the alignment adjustments whereas the Adjustable values are used as starting points for alignment where the radio has not been calibrated previously, or where the calibration has been corrupted.
SRM9000X8 800MHz SERVICE MANUAL Variable Name DAC Value Alignment Adjustable VCO_Mod_Limit_Low_RP 14000 VCO_Mod_Limit_High_RP 16500 VCO_Mod_Limit_Low_TA 18300 VCO_Mod_Limit_High_TA 19000 Modulation_Bal_Low_RP 40 Modulation_Bal_High_RP 80 Modulation_Bal_Low_TA 105 Modulation_Bal_High_TA 125 VCO_ALC_Low_RP 75 VCO_ALC_High_RP 80 VCO_ALC_Low_TA 95 VCO_ALC_High_TA 100 Sq_Upper_Threshold 2600 Sq_Lower_Threshold 1000 TCXO Alternate TCXO Alignment Fixed 14800 6000 CGF_Current 15 C
SRM9000X8 800MHz SERVICE MANUAL Variable Name DAC Value Alignment Adjustable Power_Ramp_High_Power_Up_8 Alignment Fixed 215 Power_Ramp_High_Power_Up_9 215 Power_Ramp_High_Power_Down_0 215 Power_Ramp_High_Power_Down_1 158 Power_Ramp_High_Power_Down_2 96 Power_Ramp_High_Power_Down_3 46(abs) Power_Ramp_High_Power_Down_4 0 Power_Ramp_High_Power_Down_5 0 Power_Ramp_High_Power_Down_6 0 Power_Ramp_High_Power_Down_7 0 Power_Ramp_High_Power_Down_8 0 Power_Ramp_High_Power_Down_9 0 10(abs) Po
SRM9000X8 800MHz SERVICE MANUAL Alignment Limits 4.1.4 TEST NAME HIGH LIMIT +50 -50 Hz TX POWER 1.0W 1.06 0.94 W TX POWER 5W 5.20 4.80 W TX POWER 27.5W 28.0 27.0 W VCO MOD LIMIT (Max peak) 2300 2250 Hz MOD BALANCE +5% -5% Flatness RX FILTER 1,2 Auto aligned Auto aligned Preset Preset RSSI CAL @ -90dBm 2000 500 SQUELCH OPEN 11.5 8.5 dBS SQUELCH CLOSED 7.0 3.0 dBS Band specific frequency limits TEST NAME 4.1.6 UNIT TCXO Alignment TX FILTER 1,2,3,4 4.1.
SRM9000X8 800MHz SERVICE MANUAL . To SRM9000 P2 Pins 6 & 13 T1 R 600R 1:1 Line Matching Transformer . . R = Audio power Load (set as appropriate) or Resistor 4R 4W for ½ Bridge Speaker option Resistor 8R 12W for full Bridge Speaker option 4.1.7 To Noise & Distortion Meter & Oscilloscope 9000_49/3b Test Setup Noise & Distortion Meter SRM9000 CRO PC 8 15 SRM9000 Speaker O/P Breakout Box 7 14 6 13 5 P2 (DB15M) 12 4 11 3 10 2 9 1 S1 RJ45 + - 13.
SRM9000X8 800MHz SERVICE MANUAL 4.1.8 1 COMMS Setup Copy the SRM9000 Alignment Tool Computer Software file to the PC hard drive and run the program The Alignment Tool Opening Menu is displayed. 2 Go to the Options menu and choose Comms Setup. 3 The Comms Setup dialogue box is displayed. Select the Comms Port setting appropriate to the configuration of your PC and choose 9OK.
SRM9000X8 800MHz SERVICE MANUAL Band Preparation 4.1.9 1 Go to the Options menu and choose Band. Select appropriate band and choose 9OK. 4.1.10 1 Hardware Options Select Options menu choose Hardware Mods. Press Read Radio. Tick 9 the box according to the revision as desired as in the table below. Press Write Radio. (Press Read Radio again make sure the selected options are still ticked ). 4.1.11 Radio Preparation Radio parameters are to be aligned sequentially as detailed in this procedure.
SRM9000X8 800MHz SERVICE MANUAL 2 The WARNING is displayed. Choose No if you want to save the configuration and use the FPP software to read and save the data to a file. Choose Yes if you want to proceed and go to step 3. 3 The radio alignment data is read (indicated by percentage bar) and stored. The test alignment data is downloaded into the radio. Note: In test alignment mode the radio is configured only for 12.5 kHz channel spacing. Therefore all alignment is carried out at 12.5 kHz levels.
SRM9000X8 800MHz SERVICE MANUAL Calibration procedure 1 Select the VCO DAC page. 2 Select PTT with no modulation. 3 Select Auto Align. The Synth DAC Tx slider will automatically adjust its value for each transmitter alignment frequency to set the VCO loop filter value between 87 and 93. 4 The Synth DAC Rx slider must be set to the same Tx value for Channels 0 and 1 only. This is automatically set when Auto Align is selected.
SRM9000X8 800MHz SERVICE MANUAL 4.1.14 TCXO DAC Alignment General The optimum radio case temperature for TCXO alignment is around 25°C although a temperature between 20°C and 30°C is permissible. If the radio has been allowed to exceed this range during previous transmit cycles, it should be allowed to cool until it is within the permissible range. Calibration procedure 1 Select the Mute/TCXO page. 2 Select PTT.
SRM9000X8 800MHz SERVICE MANUAL 4.1.15 Rx Front End DAC Alignment Calibration procedure 1 Ensure that the TCX0 Alignment has been done before proceeding with this section. 2 Select the Rx/Tx Filter page. 3 Select Open Mute. 4 Set the Volume slider to 15. Speaker audio should now be visible on the Scope. If required readjust the Volume slider to a suitable level.
SRM9000X8 800MHz SERVICE MANUAL Tx Filter DAC Alignment 4.1.16 General This filter should be set so that the Tx spurious emission at 180MHz above the carrier frequency is adequately notched. Calibration procedure Note. This step is only required if Tx Filter DAC values have been corrupted. 1 Select the Rx/Tx Filter Page 2 Select Channel 0 3 Set DAC to preset value as per Section 2.13. 4 Repeat for the next three channels 1, 2 and 3.
SRM9000X8 800MHz SERVICE MANUAL 4.1.17 RSSI Calibration Calibration procedure 1 Select the RSSI Cal page. 2 Set the Signal Generator for a RF output level of -90dBm and 3kHz deviation at the specified frequency. 3 Activate the Store RSSI button. The receiver RSSI threshold setting is calibrated.
SRM9000X8 800MHz SERVICE MANUAL 4.1.18 Mute DAC Adjustment Note. This adjustment has default setting of 1000/2600 and should not need changing except for specific requirements. Calibration procedure 1 Select the Mute/TCXO page and select Open Mute. 2 Set the RF signal generator to the receiver alignment frequency, and adjust the RF level such that the desired mute opening SINAD (typically 10dB SINAD) is achieved. 3 Select Close Mute and remove the RF input from the radio.
SRM9000X8 800MHz SERVICE MANUAL Tx Power DAC Alignment 4.1.19 General The transmitter output power can be programmed to three power ranges: 1W, 5W and 27.5W by the appropriate setting. Note 1: Care should be taken not to set the output power and hence supply current to excessive levels, ie. above 30W or 7.5A, since the higher heat dissipation involved may effect component reliability. Note 2: Also, the antenna connector should be terminated directly into the Comms.
SRM9000X8 800MHz SERVICE MANUAL 7 Select the 5W power level. 8 Adjust the Tx Final Value slider for a power output of 5W. 9 Repeat step 8 for the remaining 3 Channels (2, 1& 0). 10 Select the 27.5W power level. 11 Adjust the Tx Final Value slider for a power output of 27.5W. Note that the supply current is less than 7.5A. 12 Repeat step 11 for the remaining 3 Channels (1, 2, & 3). 13 Press Calibrate TX PA Current button and follow the prompt to automatically set the maximum current limit.
SRM9000X8 800MHz SERVICE MANUAL Calibration procedure 1 Select Tx Power/Mod page. 2 Select Channel 0. 3 Select the 1W power level. 4 Set the microphone input signal from the Audio Generator to 1000Hz at 400 mV RMS. 5 Select PTT and adjust the VCO Modulation Limit DAC to give a maximum peak deviation of 2.30kHz. Reduce the microphone input level to 40mV RMS and check that the deviation is within the range ±1.25 kHz to ±1.75 kHz.
SRM9000X8 800MHz SERVICE MANUAL 4.1.20 PROGRAMMING ALIGNMENT DATA When all channels have been aligned the radio is programmed with the new alignment data: 1 2 3 Select Align and choose Write Alignment. A warning message is displayed. Choose Yes. New alignment data is written to the radio. 4.1.21 CUSTOMER RADIO PERSONALITY DATA If the Customer Radio Personality Data was saved as a separate file, use the FPP Programmer to write this data to the radio.
SRM9000X8 800MHz SERVICE MANUAL 5. REPLACEABLE PARTS 7 5 11 4 6 13 14 11 8 17 11 3 9 18 2 12 4 1 19 15 11 10 16 Figure 5-1 Replaceable Parts 5.
SRM9000X8 800MHz SERVICE MANUAL Ident Description Quantity per Assembly Part Number 13 Gasket D Connector 1 3513 902 1082A 14 Gasket Antenna Connector 1 3513 902 10651 15 MAB-2 Option Board- Programmed 1 6102 359 6213 16 Screw Option Board M3 x 6 3 6102 700 00071 17 Dust Cap P25 Option Connector 1 6102 310 01222 18 Gasket P25 1 6102 310 00812 19 Tx PA Shield cover 1 6102 310 01201 DC Power Cable Macom 1 6102 350 13591 6. 6.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 1: Transceiver Block Diagram 5V_TX 8V_RF 13V8_UNSW CURRENT_CAL CURRENT_SENSE 6102_349_6232X8062.Sch 5V_TX 5V_TX 8V_RF 5V_RF 5V_TX 5V_RX 44dBm 6102_349_6232X8062.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 2: DSP/ Flash /RESET U201 30.72MHz DSP_CLK 2V5 2V5 C210 100n N.F. N.F.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 3: PLA TP306 5V_D TP307 RF_GAIN R307 TP301 5 3V3 R327 R321 CURRENT_SENSE 1k0 C353 10n 10n C349 0VA 8 10n TP320 5V_D R344 N.F.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 4: Receiver RF AMP (FIXED GAIN) Q403 BC859CW C417 100n 5V_RX R406 R405 12k 0VA TP408 0VA Q402 2k2 R407 47R MIXER BC859CW C410 C418 R408 100p 1u0 0VA 0VA 100n N.F. 0VA C422 TUNED FILTER 1 6 0VA R421 10p 0R C430 Q404 22p 0VA BFR380F N.F. 4 3p3 0VA 0VA 47p C405 0VA 0VA D431 0VA 1SV229 N.F. 12p 12p 0VA 4 0VA 0VA 0VA D432 0VA IF GND C441 N.F.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 5: Transmitter TX DRIVER AMPLIFIER TX PRE-DRIVER AMPLIFIER 5V_TX 8V_RF R534 5V_TX 8V_RF 10R R514 TX BUFFER R521 10R R528 10R 10R R504 C513 10R C503 100p 0VA 1u0 1k0 R503 C507 6 TX_RF (1dBm) (CH0: 0.8dBm) (CH1: 0.6dBm) (CH2: 1.9dBm) (CH3: 1.6dBm) C502 4p7 R512 (15dBm) N.F.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 6: VCO 7 2 TX_MOD2 5V_RFF R625 Q621 PLL_STB R621 6 C632 BC859CW 100K R625a 100n 0VA R624 N.F. 1k0 16V R604 100R LOOP FILTER R605a 47u 0VA 8 7 0VA 16 Vdd Sb Zb Y1b 100VA 1n0 1 C604 0VA 1n0 R606 2 Y0b 0VA 14 Sa 11 Za Y1a 13 L621 L622 100n 100n C621a 680R R612 C606 R611 N.F. N.F. 1k0 3 1n0 0VAC601 9 100p Y1c 4 Zc 0VA 0VA C638 10n N.F. R623 D623 U620B 100p N.F.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 7: Synthesiser FIN_RF 0VA 3P3 PLL_DATA R700 3P3 R701 100n VCC C708 2 GND 3 VDDRF1 0VA 100R 14 SIGin 5V P-P 15.36MHz C722 5 10n C702 L701 DSP_CLK 2 3V P-P 15.36MHz 6p8 COMPin 4 VCOout 5 INH 10u PC2out 13 R2 12 11 R1 C1a C707 470R 0VA 6 0VA R706b R706c 10 DEMout 21 FINRF- REFIN 20 0VA Q731 BC849CW 5V_RFF LE 100n N.F.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 8: TX/ RX Audio U800 UDA1344TS 3V3 R807 10 1u0 2 3 3 3 3 3 10 10 10 ADCref+ 10R C813 N.F. 100n 0VA 0VA 7 C853 C814 100n CDI 100p 0VA CDO CLRC CSC_0 16 SCLK L3C CDI 19 RXD CDO 18 TXD CLRC 17 LRC L3D L3M_A C833 C0FL R812 CLRC R866 L3C 100K 0VA L3C L3D 13V8_UNSW_F R852 L3DAT VddDAC 23 13 L3MODE VddAMP 25 5V_D Q813 Q810 R815 R816 10k 10k 10k 0VA VrefDAC 8 TEST1 21 TEST2 20 TEST3 N.F.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 9: Power Supply Q903 BC849CW R941 1k0 3 2 AMP 10 13V8_UNSW (160mA Note 1) L900 N.F. C906 C915 N.F. 0VA 1k2 2 0VA ON/OFF ADJ 1u0 220K 1u0 GND 0VA 0VA N.F. C947 4n7 6 0VA 10 100n 1u0 100K Q902 BC859CW 10k 3V3 C901 R916 2 3 3 100n Q907 4k7 4 IN OUT 4k7 2 ADJ 1 GND 6 ON/OFF 0VA GND 1 0VA R908 R909 Q917 BSN20 R935 2 3 3 OUT UREG C941 R937 10u N.F.
SRM9000X8 800MHz SERVICE MANUAL TNM-M-E-0001 Sheet 10: I/O Connections OPTIONS PTT FC0 20 R1 18 100R CONF2 6 TXD 12 13 PF6 24 PF4 4 14 RFS 10 SCLK R3 TXD R5 100R R6 100R R7 RXD AUX 1 PF6 P3 PF4 R8 100R R9 100R R10 100R 8 TFS 1 R27 RFS 2 N.F.
SRM9000X8 800MHz SERVICE MANUAL Top Overlay CF9 R557 L561 D561 C568 R407 R406 TP561 C557 C569 R569 R408 C410 TP408 Q403 R565 R566 R409 C418 Q402 R405 C417 C579a C579c C579b C550 L572 L571 C556 C572 TP531 R572 C578a C578c C578b C551 D900 R558 R571 C574 C571c C571b TP521 D551 C576 C575 Q551 C571a R360 R556 TP441 C486 C491 R483 C617 C663 R658 C662 R662 C665 R610 R661 C642 C642a L650 C615 C610a C609a R602 TP680 R74 C79 R72 C70 CF8 R940 C921 C930 R80 C917
SRM9000X8 800MHz SERVICE MANUAL Bottom Overlay MF4 CF6 E501 E502 C592b C592c C598a C592a R592 C598 C593 C595a L592 C590 R593 C599 S501 L593 L594 U561 R594 C592 C589 C588 R591 C596 C595 C585 C595b L591 C586 D581 D583 D582 D580 L573 C562 Q532 R26 R531 C531 C532 C530 L522 C527 R521 C521 R527 R526 C949 C434 D431 C436 L431 C441 C443 C437 C563 C560 C573 R549 U551 C552 R559 R554 U441 C542 L449 R548 C445 C541 R546 R542 R543 R551 R545 R552 R547 R544 R540 L448 R426 R424 R428
SRM9000X8 800MHz SERVICE MANUAL APPENDIX A - GLOSSARY OF TERMS A summary of common radio terms and some other terms used in this document, and their meanings, are given below. ADC Analog to Digital Converter. AFC Automatic Frequency Control. AGC Automatic Gain Control. Alarm A Selcall sequence sent from subscriber equipment to indicate an Emergency situation. When activated the radio will enter a repeating sequence consisting of an Alarm Live Transmit Time and an Alarm Dead Receive Time.
SRM9000X8 800MHz SERVICE MANUAL Community Repeater A communications set-up whereby different groups of radios can operate by using only one base station. This is achieved by the use of CTCSS tone signalling such that each group has a different CTCSS tone (encode and decode) and radios can only communicate with other radios in their group. Only one group of radios can use the base station at any one time. CRU Central Repair Unit CTCSS CTCSS stands for Continuous Tone Controlled Signalling System.
SRM9000X8 800MHz SERVICE MANUAL FFSK Fast Frequency Shift Keying. This is a signalling system for the transfer of digital information. It works by using one of two audio tones to represent transmit data.. Fleet A group of units formed such that only a shortened form of dialling (2 or 3 digits) is required between them. These groups are normally assigned contiguous ident's. PLA Programmable Logic Array. FPP Field Personality Programmer.
SRM9000X8 800MHz SERVICE MANUAL Reference Frequency Normally this is generated from a high stability crystal oscillator reference and is divided digitally in a frequency synthesiser for comparison with other frequency sources, e.g. a VCO. Repeat Tone A selcall tone that is used to replace repeated tones. Fixed at tone E. Example: An identity entered as '12333' would be sent by the radio as '123E3'.
SRM9000X8 800MHz SERVICE MANUAL through status digits in Selcall identities. Either in Encode Identities or Decode Identities as follows: Encode Identities: Status digits within the identity are used to transmit the current situation of the radio's user (e.g. "Out To Lunch"). Decode Identities: Status digits are looked up in a table (Status Menu) for possible messages to display. SW Software. TCXO Temperature Compensated Crystal Oscillator.
