Nikon CM200 service manual Radio Assembly, Chassis Assembly for Low Power Models

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MAINTENANCE

 

 

7.0Radio Assembly

7.1Chassis Assembly (for Low Power Models)

1.Ensure that the Fuji Poly Thermal Pad is on the small pedestal located on the PA compartment of the chassis.

2.Verify that the potentiometer is soldered properly.

3.Take the main PCB and smear thermal paste on LDMOS Power Amplifier, TO220, and Audio Power Amplifier.

4.Slide the main board diagonally into the chassis.

5.Tighten all eight screws (Torx T10).

6.Assemble the O-ring on the RF connector and tighten it using Torque 22 lb.in.

7.Tighten the RF connector security screw M2 using Torque 1.5 lb. (through the opening in the PCB).

8.Take the Power Amplifier Clip and insert the leg-shape side into the opening groove located on the PCB. Tighten the screw using Torque 13 lb.in

9.Take the PA Shield and place it on the PA compartment. Tighten the three screws using Torque 13 lb.in. Tighten the middle screw first, then the screw located on the left side, and lastly the screw located on the right side.

10.Insert the DC cable into the slot. Ensure that it is seated correctly on the chassis hook located below the DC cable. Attach it to the chassis and PCB by tightening the two screws using Torque 13 lb.in (Torx T10).

11.Take the main shield and place it on the chassis. Check that the corners of the main shield are seated properly on the corner supports.

12.Take the main seal and place it inside the top cover. Verify that the main seal is seated prop- erly on its placement ribs and all around the groove.

13.Take the upper cover, place it properly on the chassis, and push it down. Three click sounds are heard from both sides and back.

7.2Chassis Assembly (for High Power Models)

1.Verify that the potentiometer is soldered properly.

2.Take the main PCB and smear thermal paste on T0220 and Audio Power Amplifier.

3.Slide the main board diagonally into the chassis.

4.Tighten all eight screws (Torx T10).

5.Assemble the O-ring on the RF connector and tighten it using Torque 22 lb.in.

6.Tighten the RF connector security screw M2 using Torque 1.5 lb. (through the opening in the PCB).

7.Take two PA Screws and place in screw holes over PA. Tighten the screws using Torque 13 lb.in.

8.Take the PA Shield and place it on the PA compartment. Tighten the three screws using Torque 13 lb.in. Tighten the middle screw first, then the screw located on the left side, and lastly the screw located on the right side.

9.Insert the DC cable into the slot. Ensure that it is seated correctly on the chassis hook located below the DC cable. Attach it to the chassis and PCB by tightening the two screws using Torque 13 lb.in. (Torx T10).

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Contents Commercial Series Page CM200/CM300/PM400 Radios Foreword Table of Contents Transceiver Performance Testing Glossary This page Intentionally Left Blank Safety Information Product Safety and RF Exposure ComplianceThis page is Intentionally Blank Introduction Replacement Parts Ordering Radio Model Information This page Intentionally Left Blank Chapter Preventive MaintenanceCleaning Procedures IntroductionCleaning Internal Circuit Boards and Components Safe Handling of Cmos and Ldmos DevicesDisassembling and Reassembling the Radio General Repair Procedures and Techniques GeneralParts Replacement and Substitution Rigid Circuit BoardsControl Head Removal Radio Disassembly DetailedVolume Knob Removal 3Flat Cable Removal Top Cover Removal 5Top Cover Removal Chassis HorizontalMain Shield Removal PA Shield and DC Cable RemovalPA Clip and Main PCB Removal for Low Power Models 8PA Shield and DC Cable Removal for High Power ModelsMain PCB Removal for High Power Models 10PA Clip and Main PCB Removal for High Power ModelsDisassembly of Control Head CM200 PCBDisassembly of Control Heads CM300/PM400 12Control Head Housing Removal CM300/PM400Chassis Assembly for High Power Models Radio AssemblyChassis Assembly for Low Power Models Control Heads Assembly Control Head FittingOption Board Installation Item No Description Part Number Radio Exploded Mechanical Views and Parts ListsRadio Assembly 1-25 W Models Radio Assembly 25-40 W/25-45 W Models Control Head CM200 Item no DescriptionControl Head CM300/PM400 Service Aids Motorola Part Description ApplicationTest Equipment Programming/Test Cable RKN4083 FLO830308-020Pin Configuration of FKN8113 Adapter Cable FKN8113General SetupService Monitor Test Set Power Supply Table Number TitleHSS RF Test ModeTo enter test mode display radios CMPTest Mode Test Name Communications Analyzer Radio Test Set CommentTPL DtmfPL/DPL DPLSinad This page Intentionally Left Blank CPS CPS Programming/Flashing Setup with RIBDescription Kit Number CPS Programming/Flashing Setup Ribless CPS Programming Setup with RIB with Telco ConnectorCPS Programming Setup with RIB Accessory Connector CPS Programming Setup with RIBService Monitor Test Set Power Supply Radio Tuning SetupInitial Test Equipment Control Settings Power UP SELF-TEST Error CodesPower UP SELF-TEST VHF AccessoriesAntennas UHFAlarms and Accessories AudioCables Control StationPublic Address MountingData CES Wireless Technologies PeripheralsAccessory Connector Pin Function SCIMicrophone Connector Pin Function SCI/DTMFVHF2, 1-25 W, 146-174 MHz Low Power Radios146-174 MHz CM200/CM300/PM400 Model Chart Model DescriptionAAM50RNC9AA1A 438-370 MHz CM200/CM300/PM400 Model ChartUHF2, 1-25 W, 438-470 MHz AAM50RNF9AA1ANGeneral SpecificationsSpecification ESDTransmitter ReceiverVHF1, 25-45 W, 136-162 MHz High Power Radios136-162 MHz CM300 Model Chart VHF2, 25-45 W, 146-174 MHzAAM50RPC9AA1A 438-470 MHz CM200/CM300/PM400 Model ChartUHF2, 25-40 W, 438-470 MHz AAM50RPF9AA1ANAAM50SPF9AA3AN 465-495 MHz PM400 Model ChartUHF3, 25-40 W 465-495 MHz VHF1 VHF2 UHF2 UHF3 35 ∝V @ 12.5 kHz ∝V @ 25 kHz MIL Standards MIL-STDGlossary of Terms Term DefinitionPLL ResetOSW PTTVswr VCOVcobic This page Intentionally Left Blank Page 6802966C15