Motorola DR 3000 service manual Transceiver Board Removal

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Disassembly/Reassembly Procedures: Transmit and Receive Radio Disassembly — Detailed

5-13

 

 

5.Remove the transceiver board by sliding a finger into the opening provided at the front of the radio and gently press up on the 30-pin connector, lifting up the front of the board, as shown in Figure 5-10. Then, slide the transceiver board towards the front of the radio to allow the RF/DC connectors to clear the chassis. Handle the transceiver board by the edges only and store it in an antistatic bag.

NOTE: If the RF/DC connector gaskets remain in the chassis, remove them and place them back on the connectors.

!The thermal pads can act as an adhesive and cause stress to critical components on the transceiver board if the transceiver board is lifted too

C a u t i o n

quickly.

Figure 5-10. Transceiver Board Removal

6866576D03-A

February 21, 2007

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Contents Mototrbo Repeater UHF Range 1 Mototrbo Repeater Foreword Product Safety and RF Exposure ComplianceDocument History February 21 Table of Contents Appendix a Emea Regional Warranty, Service and Support Chapter Basic TroubleshootingGlossary Glossary-1 List of Figures List of Tables Related Publications Notations Used in This Manual IntroductionRepeater Description AA M Mototrbo Repeater Model Numbering SchemeMDM27QPR9JA7AN Model DescriptionUHF1 SpecificationsTransmitter Introduction Specifications Recommended Test Equipment Test Equipment and Service AidsProgramming Cables Service AidsWire Diagram Test Equipment and Service Aids Programming Cables Setup Transceiver Performance TestingGeneral AM, CW, FM FMSinad Customer Programming Software Setup Repeater Tuning and ProgrammingACC USB Repeater Tuning SetupPreventive Maintenance Disassembly/Reassembly ProceduresCleaning Procedures InspectionU t i o n Safe Handling of Cmos and Ldmos DevicesLead Free Solder Paste Part Number List Repair Procedures and Techniques GeneralDisassembly of Cover Disassembly Procedures DetailedDisassembling and Reassembling the Repeater General Disassembly of Repeater Indicator Board Repeater Indicator Board Disassembly Disassembly of FanRemoving Transmit Radio Tx Radio DisassemblyRemoving Thermal Pad and Heatsink Receive Radio Removal Disassembly of Connector Board Assembly Disassembly of Receive Radio Disassembly of Power Supply Transceiver Board and Receiver Board Removal Transmit and Receive Radio Disassembly DetailedRF/DC Retention Clips Removal 10. Transceiver Board Removal 12. Transceiver Board with Thermal Pads Transmit and Receive Radio Reassembly DetailedOccur Transceiver Board and Receiver Board ReassemblyRetention Clips RF/DC17. Assembling of PA Pad and O-ring 18. Assembling Die Cast Cover onto Chassis 19. Screw Sequence to Tighten Die Cast Cover Thermal Pad Replacement Procedure22. Placing Thermal Pads on PA and Transistor Components Reassembly of Receive Radio Reassembly of Power SupplyReassembly of Connector Board Assembly Reassembly of the Receive Bracket Assembly to the EnclosureReplacing the Thermal Pad and Heatsink Reassembly of Transmit RadioReassembly of Repeater Indicator Board Reassembly of FanReassembly of Cover 24. Repeater Assembly Exploded View Repeater Exploded Mechanical Views and Parts Lists25. Receive Bracket and Radio Assembly Exploded View 6866576D03-A Torque Chart Disassembly/Reassembly Procedures Torque Chart Replacement Service Kit Procedures Basic TroubleshootingHigh Power RF Precaution LED LED Indicator DescriptionsWarranty Period and Return Instructions Warranty and Service SupportAfter Warranty Period Piece Parts European Radio Support Centre ErscFurther Assistance From Motorola Technical SupportEmea Regional Warranty, Service and Technical Support Glossary TPL TOTUHF VIP@6866576D03@