Transceiver Board, Interconnections | Motorola SSETM 5000 guide

Theory of Operation: Transceiver Board	2-7

2.4Transceiver Board

The transceiver (XCVR) board performs the transmitter and receiver functions necessary to translate between voice and data from the VOCON board and the modulated radio-frequency (RF) carrier at the antenna. The transceiver board contains all the radio’s RF circuits for the following major components:

•Receiver

•Transmitter

•Frequency Generation Unit (FGU)

2.4.1Interconnections

This section describes the various interconnections for the transceiver board.

2.4.1.1 Battery Connector J3

Battery connector J3 consists of three gold-plated contacts on the printed circuit board that mate with a B-plus connector assembly. Signal descriptions are in Table 2-5.

Table 2-5. Battery Connector J3

Pin No.	Signal	Description


1	BATT	Battery positive terminal, nominally 7.5 Vdc

2	BSTAT	Battery status, from battery to VOCON

3	BAT_RTN	Battery negative terminal, tied to PCB ground

2.4.1.2 VOCON Connector P1

VOCON connector P1 (located on the XCVR board) consists of 26 gold-plated pads for the 26-pin compression connector, and one plated tool hole (pin 27) used for connector alignment. This is a digital interface carrying DC power, control, and data between the XCVR and VOCON boards. P1 connects through the compression connector to P201 on the VOCON board.

Table 2-6lists the connector pins, their signals, and functions. SPI refers to the serial peripheral interface, which is the control bus from the microprocessor. SSI is the serial synchronous interface bus for data to and from the DSP. There is a RX SSI bus for demodulated data from the receiver and a TX SSI bus for modulation data to the transmitter.

Table 2-6. VOCON Connector P1

	Pin No.	VOCON Signal	XCVR	XCVR	Type	Description
	Pin No.	VOCON Signal	Signal	I/O	Type	Description
			Signal	I/O


	1	UNSW_B+	FUB+	O	dc	Fused B+ to VOCON

	2	UNSW_B+	FUB+	O	dc	Fused B+ to VOCON

	3	LOCK_DET*	LOCK	O	status	FGU lock detect

	4	TX_SSI_DATA	TXTD	O	ssi	TX SSI data

	5	SSI_CLK	RXCK	O	ssi	RX SSI clock

6881094C12-A

November 11, 2004

Image 29

Motorola SSETM 5000 service manual Transceiver Board, Interconnections, Battery Connector J3, Vocon Connector P1

Contents

SSE Page UHF Range 2 450-488 MHz Portable Radio SSE For safe usage contained in the Product Safety and RF Before using this product, read the operating instructionsForeword Exposure booklet enclosed with your radio Table of Contents Chapter Performance Checks Chapter Chapter Encryption Chapter Radio Alignment Procedures Chapter Troubleshooting Charts Chapter TroubleshootingChapter Troubleshooting Tables Chapter Troubleshooting Waveforms Appendix B Replacement Parts Ordering Appendix a AccessoriesRelated Publications Glossary Viii November 11 MHz Clock Waveform List of Figures List of Tables Special Note on Nypd Warranty Agreement Commercial WarrantyLimited Warranty What This Warranty Covers And For How Long What This Warranty Does Not Cover IV. How To Get Warranty ServiceII. General Provisions III. State Law Rights VII. Governing Law VI. Patent And Software Provisions Xiv FLASHport Physical Features of the RadioRadio Description Position Portable Radio Model Numbering System Item Number Description SSE 5000 UHF Range 2 450-488 MHz Model Chart General Receiver Transmitter Specifications for UHF Range 2 450-488 MHz Radios Injury Notations Used in This Manual Radio Description Notations Used in This Manual Major Assemblies Theory of Operation Receiving Mode of Operation RX LNA Transmitting Part Number Description Power DistributionV5A V3A V3D DC Power Routing-VOCON Board DC Power Routing-Transceiver BoardOutput Description Name V3A Voltage Output Voltage Supply Output Supply Type Unprogrammed Circuits Supplied Vocon Connector P1 Battery Connector J3Transceiver Board Interconnections Serial Eeprom Antenna Ports Receiver Power Conditioning ComponentsReceiver Front-End UHF Range Receiver Back-End Transmitter Abacus III AD9874 Functional Block Diagram Driver Amplifier Power DistributionPower Amplifier Transistor Q107 Harmonic Filter Antenna SwitchDirectional Coupler Pin Name Description Power-Control IC Pcic U104RF Detector D101 Vlim VAR2VAR1 VAR3 Fractional-N Frequency Synthesizer FracN IC U202 Frequency Generation Unit FGUReference Oscillator Y200 VCO Buffer IC Vcobic Vocon BoardLoop Filter Universal Flex Connector J102 Transceiver Board Connector P201 Functional Blocks External Interface Module EIM Microcontroller Unit MCU Baseband Interface Port BBP Digital Signal Processor DSP System Clocks General-Purpose Input/Output Gpio Module Gcap II IC U501 Audio and Power MCU Interface Voltage Regulation Audio Circuitry Interface Support Audio PA Status Mode Voltage USB Transceiver One-Wire Support MHz Reference Generation for Gcap II IC Watchdog TimerKHz Oscillator and Cmos Output Universal Side Connector Universal Connector and Option Selects Pin Number Description Function Option Select Voltage Display ModuleControls and Control Top Flex Transmit Audio Path Vocon Audio Paths Gcap II IC U501 Receive Audio Path Theory of Operation Vocon Board Radio Power-Up/Power-Down Sequence Test Equipment Test Equipment and Service AidsLevels of Service 2Test Equipment and Service Aids Test Equipment Motorola Service AidsPart Description Application Number ChipMaster Options Motorola Service Part Description Application SOIC-14/SOL-16J Service LevelMotorola Part Description Application Number Field Programming Performance Checks Test Equipment Setup System Analyzer Test Set Power Supply Radio Test ModeAccess the Test Mode ESN Display Description Appears Test Channel RF Test ModeNo. Display Description Function Tones Astro Control Top Test Mode Receiver Performance Checks Test Mode CSQTest Name System Analyzer Radio Test Set Comments Sinad Transmitter Performance Checks Performance Checks Transmitter Performance Checks Radio Alignment Test Setup Radio Alignment Procedures Radio Information Reading the RadioTuner Menu Reference Oscillator Alignment Transmitter AlignmentsSoftpot Band Target Transmit Power Alignment Watts Transmit Power Transmit Power Alignment Screen High Power Transmit Deviation Balance Alignment Screen Transmit Deviation Balance Alignment Transmit Deviation Limit Alignment Screen Transmit Deviation Limit Alignment Transmitter Test Pattern Performance TestingBattery Reading Calibration 11. Battery Reading Calibration Screen Load an Encryption Key Multikey FeatureEncryption Encryption Multikey Feature General Maintenance Disassembly/Reassembly ProceduresCleaning Inspection Handling Precautions SSE 5000 Exploded View SSE 5000 Exploded View NNTN4825 KIT, Back Chassis includes items NNTN4826 KIT, Front Chassis includes items Battery Disassembly/Reassembly Procedures for AccessoriesAntenna Attach the Antenna Remove the Battery Attach the BatteryBelt Clip Attach the Belt Clip Attaching the Belt Clip Remove the Belt Clip Assembling the Carry Case Carry Case Universal Connector Dust Cover Disassembly/Reassembly Procedures for Radio KnobsRemove the Universal Connector Dust Cover Attach the Universal Connector Dust Cover Volume Knob Install the Channel Select KnobRemove the Volume Knob Channel Select Knob Install the Volume Knob Disassembly Procedures for SSE 5000 RadioSeparate the Chassis and Housing Assemblies Disassemble the Chassis Assembly Disassemble the Control Top Disassemble the Housing Baseplate Reassemble the Control Top Reassembly Procedures for SSE 5000 Radio Join the Chassis and Housing Assemblies Reassemble the Chassis Assembly Reassemble the Housing Baseplate November 11 Voltage Measurement and Signal Tracing TroubleshootingSignal Name Nominal Value Tolerance Vocon Board Source Standard Bias Table Error Description Error Type Corrective Action Code Power-Up Error Codes Error Code Description Corrective Action Operational Error CodesReceiver Troubleshooting Encryption Troubleshooting Transmitter TroubleshootingSymptom Possible Cause Corrective Action PL, DPL, MDC List of Troubleshooting Charts Troubleshooting Charts Vocon Main Troubleshooting Flowchart Power-Up Failure-Page OK? DC Supply Failure-Page Host C VHF U1 Display Failure-Page Regsel Check Active Low Status on both Reset and CS Control top/PTT Volume Set Error RTA3 RTA2 RTA1 RTA0 Channel Select Error PTT Button Test Top/Side Button Test VCO TX/RX VCO TX/RX Unlock OK? Vocon TX Audio-Page TX RF RX SAP Vocon RX Audio-Page Check Preamp Output Signal At C530 Rxlo RX RF-Page Vocon RX LNA RX RF-Page UHF TX RF-Page Measure RF levels at C723 Temp Vocon Keyload Failure Synopsis Secure Hardware Failure Troubleshooting Charts Secure Hardware Failure List of Board and IC Signals Troubleshooting Tables J707 Description To/From Pin No J102 Side Description Probe Point Connector Pin No Number J701 Description J701 Description To/From Pin No ADV ResetAddress Ground Data Enoe VPPCS1 CS2 Address Ground Not Used Data Eepotinc Hostwake BatteryidExtspkrsel Audiopaen Boot EncresetKPROW2 KPROW3 URTS1XRXD URXD1USBVMIAdtrig URXD2 Spimisoa Misoa Not Used BtdisableSpimisob Misob Not Used Eepromsel Unisel AbacuscsFlprcs Gcapce UTXD1USBVPO UCTS1USBSPEEDUsbvmo Usbtxen Khzint Kvlusbdet OnewireenNot Used Batbusen Usbvpi CKO EB1N OeenEbon Wait TXDOBDI5V RXDINENC3VRXDIN5V RTS Onewireopt Flprcs Uartint GcapresetxSpimosib Mosib Spimisob Misoa TXDOBDIENC3V RTSFILLSEN3V CTSFILLREQ3VTXDOBDIUP3V AD4BDID XTAL1 Battery Auxbat AuxfetXTAL2 PRSC2 LX2 Pasense PGM0 PadrvLS3RX Dgnd AGND3 Simio AD5VOLUMEDwnout Dwnin Cmpout Dscinn Micinneg 10-24 List of Waveforms Troubleshooting Waveforms MHz Clock Waveform 11.2 13 MHz Clock Trace 1 Buffer input at R452 Trace 2 Buffer output at C452 11.3 16.8 MHz Buffer Input and Output 768 kHz Clock Outputs Waveforms 11.4 32.768 kHz Clock Outputs SPI B Data Waveforms SPI B Data Receive Serial Audio Port SAP Waveforms Receive Serial Audio Port SAP Receive Baseband Interface Port RX BBP Waveforms Receive Baseband Interface Port RX BBP Transmit Baseband Interface Port TX BBP Waveforms Transmit Baseband Interface Port TX BBP List of Vocon Schematics, Board Layouts and Parts Lists Schematics, Board Layouts, and Parts Lists Txalc Transceiver RF Board NUE7337 Receiver Front-End Circuit NUE7337 Receiver Back-End Circuit NUE7337 Transmitter and Automatic Level Control Circuits NUE7337 Frequency Generation Unit Synthesizer Circuit-1 NUE7337 Frequency Generation Unit Synthesizer Circuit-2 NUE7337 DC Power NUE7337 Antenna Switch and Harmonic Filter NUE7337 Transceiver RF Board Layout-Side 10. NUE7337 Transceiver RF Board Layout-Side NUE7337 Transceiver RF Board Parts List CAP Chip 7.0PF 16V .5PF CAP Chip 8.0PF 16V .5PFCAP Chip 12.0 PF 5% COG CAP CER Chip 4.7UF Battery Connector ContactContact RF Connector COIL, 6.8 UH Power Notplaced 64AM Dummy Part Number PCB MA,.58OHM,SMHDI Layers Tstr P-CH Hdtmos IC VHF/UHF/800 MHZ Ldmos Driver Module Direct CouplerIC Temperture Sensor IC PWR Ctrl in MOS20 Schematics, Board Layouts, and Parts Lists Vocon Board 12. NCN6186 Vocon Board Overall Circuit Schematic-Sheet 2 13. NCN6186 Vocon Universal Connector Circuit 14. NCN6186 Vocon Flipper Circuit 15. NCN6186 Vocon Controller and Memory Circuits-Sheet 1 16. NCN6186 Vocon Controller and Memory Circuits-Sheet 2 17. NCN6186 Vocon Audio and DC Circuits 18. NCN6186 Vocon DC Clocks 19. NCN6186 Vocon Display-RF Interface 20. NCN6186 Vocon Spark Gaps 21. NCN6186 Vocon Board Layout-Side 22. NCN6186 Vocon Board Layout-Side NCN6186 Vocon Board Parts List Coil 47UH SMT Power ConnectorIC Single FET BUS Switch LED Stanley Bicolor RED Ohms IC Cmos Bilateral Switch Power ManagementIC Spdt Switch Shield SUB Patriot Control Flex 23. Control Flex Overall Circuit Schematic 24. Control Flex Board Layout-Side Universal Flex 26. Universal Flex Overall Circuit Schematic 27. Universal Flex Board Layout-Side 12.5 UCM 29. UCM Flex Overall Circuit Schematic 30. UCM Board Layout-Side Appendix a Accessories Microphones and Microphone Accessories Keyload AccessoriesSurveillance Accessories Programming Cables Appendix B Replacement Parts Ordering Parts Identification Product Customer ServiceFax Orders ALC Glossary Term Definition Codeplug Epot KVL MCU OSW Reset Sram Tsop Glossary-10 November 11 Vocon Index Specifications Index-3 Index-4 Page Motorola, Inc West Sunrise Boulevard Ft. Lauderdale, FL 6881094C12-A