Motorola DR 3000 service manual Transmit and Receive Radio Disassembly Detailed

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Disassembly/Reassembly Procedures: Transmit and Receive Radio Disassembly — Detailed	5-11

5.7Transmit and Receive Radio Disassembly — Detailed

To remove Transmit and Receive radios from the repeater, refer to Sections 5.6.4 and 5.6.5 accordingly.

5.7.1Transceiver Board and Receiver Board Removal

1.Remove the seven screws from the die cast cover using the T20 TORX™ driver as shown in Figure 5-7.

NOTE: Do not remove the O-rings from the screws.

2. Lift the die cast cover from the chassis.

Screws (7)

Die Cast

Cover

Radio

Chassis

Figure 5-7. Die Cast Cover 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 Glossary Glossary-1 Chapter Basic TroubleshootingAppendix a Emea Regional Warranty, Service and Support List of Figures List of Tables Related Publications Repeater Description IntroductionNotations Used in This Manual 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 AM, CW, FM FM Transceiver Performance TestingSetup GeneralSinad Customer Programming Software Setup Repeater Tuning and ProgrammingACC USB Repeater Tuning SetupInspection Disassembly/Reassembly ProceduresPreventive Maintenance Cleaning ProceduresU t i o n Safe Handling of Cmos and Ldmos DevicesLead Free Solder Paste Part Number List Repair Procedures and Techniques GeneralDisassembling and Reassembling the Repeater General Disassembly Procedures DetailedDisassembly of Cover Disassembly of Repeater Indicator Board Repeater Indicator Board Disassembly Disassembly of FanRemoving Transmit Radio Tx Radio Disassembly Removing Thermal Pad and Heatsink Receive Radio Removal Disassembly of Power Supply Disassembly of Receive RadioDisassembly of Connector Board Assembly 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 the Receive Bracket Assembly to the Enclosure Reassembly of Power SupplyReassembly of Receive Radio Reassembly of Connector Board AssemblyReplacing the Thermal Pad and Heatsink Reassembly of Transmit RadioReassembly of Cover Reassembly of FanReassembly of Repeater Indicator Board 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 High Power RF Precaution Basic TroubleshootingReplacement Service Kit Procedures LED LED Indicator DescriptionsAfter Warranty Period Warranty and Service SupportWarranty Period and Return Instructions Piece Parts European Radio Support Centre ErscFurther Assistance From Motorola Technical SupportEmea Regional Warranty, Service and Technical Support Glossary VIP TOTTPL UHF@6866576D03@