Motorola 6816101H01-A service manual Disassembling and Reassembling the Radio General

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2-4	Disassembling and Reassembling the Radio — General

•To replace a chip component using a soldering iron, select the appropriate micro-tipped soldering iron and apply fresh solder to one of the solder pads. Using a pair of tweezers, position the new chip component in place while heating the fresh solder. Once solder wicks onto the new component, remove the heat from the solder. Heat the remaining pad with the soldering iron and apply solder until it wicks to the component. If necessary, touch up the first side. All solder joints should be smooth and shiny.

•To replace a chip component using hot air, select the hot-air hand piece and reflow the solder on the solder pads to smooth it. Apply a drop of solder paste flux to each pad. using a pair of tweezers, position the new component in place. Position the hot-air hand piece approximately 1/8” above the component and begin applying heat. Once the solder wicks to the component, remove the heat and inspect the repair. All joints should be smooth and shiny.

5.0Disassembling and Reassembling the Radio — General

For disassembly or reassembly of the radio, it is important to pay particular attention to all the snaps and tabs, and how parts align with each other.

The following tools are required for disassembling the radio:

•Phillips screwdriver

•Flat head screwdriver

•Chassis Opener

•Crab Eye Nut Opener

•Tweezers

If a unit requires more complete testing or service than is customarily performed at the basic level, send this unit to a Motorola Authorized Service Center.

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Contents Mag One by Motorola Radio Series Computer Software Copyrights Document History Page Safety Information Federal Communication Commission FCC RegulationsCompliance with RF Exposure Standards GuidelinesElectromagnetic Interference/Compatibility Operational Warnings Hearing AidsOther Medical Devices Use of communication devices while drivingOperational Cautions for Intrinsic Safe Equipment Operational CautionsIntrinsically Safe Radio Information Do Not Substitute Options or Accessories RepairTable of Contents Radio Programming Glossary of TermsWarranty and Service Support Warranty Period and Return InstructionsIntroduction Scope of ManualAfter Warranty Period Piece PartsTechnical Support Further Assistance From MotorolaRadio Model Information Unit LevelRadio Features CPSMaintenance Preventive MaintenanceCleaning Procedures IntroductionSafe Handling of Cmos and Ldmos Devices Repair Procedures and Techniques General Disassembling and Reassembling the Radio General Front Cover from Chassis Disassembly Radio Disassembly DetailedRadio Disassembly Detailed Speaker Wire Radio Disassembly Detailed PC Board Reassembly Radio Reassembly DetailedPC Board Disassembly Chassis and Front Cover Reassembly Radio Reassembly Detailed Speaker Connector Mechanical View and Parts List Exploded View and Parts ListReference Part Name QtyReference Part Name Qty Reference Part Name Qty PMNN4071RC PMUD2221ADescription Application Service AidsMotorola Part Programming Cable PMDN4043R Motorola Description Characteristics ApplicationTest Equipment Cloning Cable PMDN4060R otes Test Box PMDN4040RRadio Tuning Hardware Tuning Setup and Procedure Tuning FrequencyGround Contact Finger R425 R426 R216 FL701 R215 TP1 Subtone Level 42 ± 0.02kHz 96 ± 0.02kHz R425 R426 C722 Page Radio Programming Programming Your RadioCPS Programming Kit NumberFactory Reset CPS Programming SetupFactory Reset Accessories Publications Audio AccessoriesService Kits Model Chart and Test Specification VHF Band 1 Information 136-150 MHz A8 136-150 MHz VHFModel Description LAH84JDC8AA4ANSpecifications GeneralTransmitter ReceiverVHF Band 2 Information 150 174 MHz A8 150-174 MHz VHF LAH84KDC8AA4ANSpecifications UHF Band 1 Information 403-425MHz A8 403-425 MHz UHF LAH84QCC8AA4ANUHF UHF Band 2 Information 450 470MHz A8 450-470 MHz UHF Specifications PMAE4028A UHF Band 4 Information 490 512 MHz A8 490-512 MHz UHFLAH84TCC8AA4AN Specifications Reset Glossary of TermsTerm Definition PLLROM TPLUHF VHF