Ericsson LBI-39175A manual To Re-Assemble Unit after Servicing

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LBI-39175A

3.Disengage the four captive screws on the rear half (also known as the Remote Interface Adapter, or RIA) of the Control Head. Slide the two halves apart, using care to avoid damaging the black "O- Ring" moisture gasket attached to the RIA.

4.Disconnect Flex Circuit PC2 from Connector J2, by carefully disengaging the locking tab from each side of the connector with a jeweler's screwdriver or tweezers. Use extreme care to avoid damaging plating runs or surface-mounted components in the PWB during this procedure.

To Re-Assemble Unit after Servicing

Essentially follow the reverse of the preceding instructions. However, in order to preserve moisture seals, be sure to follow the EXACT torque and sequencing specifications for screw engagement during re- assembly. These specifications are given in LBI-38909.

NOTE

For re-assembly of the Control Units (Front and Remote Mounting) Revision "A" or later, be sure the black "O-Ring" is lubricated properly with "HIVAC-G" silicone grease. (See Figures 1A and 1B for intructions.)

Steps:

1.Remove dust and dirt from the black O-Ring gasket.

2Apply proper amount of the silicone grease to cloth.

3.Put the silicone grease on throughout the surface of the black O-Ring gasket evenly. (see Figures 1A and 1B)

CAUTION

No fibers of the cloth must remain on the gasket after silicone is applied.

4.Wipe out protruded silicone grease from the Rear/RIA Cover.

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Contents LBI-39175A Table of Contents Receiver Description Transmitter Preventive Maintenance MaintenanceMaintenance Checks Maintenance Checks IntervalTo Remove the Unit from the Mounting Bracket Disassembly ProcedureTransceiver Txrx Module Control Unit Front MountedTo Re-Assemble Unit after Servicing Front Mount Control Unit O-Ring Lubrication Introduction Alignment ProceduresLBI-39175A Test Frequencies Tracking DataSituation NEW Tracking Data Setting Tracking DataParameter Limit SinadTo Replace the PA RF Transistors PA Transistor ReplacementTransmitter Alignment Test Equipment Required Adjustment ProceduresReceiver Alignment Microphonics Troubleshooting GuideSquelch Adjustment Serviceable Parts Typical Orion Test Configuration Diagnostic ProceduresPA PWB Additional Tools RequiredTransmitter PWB ReceiverEGE Control UnitGeneral Error CodesAll System Groups Orion System Errors Error Message Description Fatal ErrorsNON-FATAL Errors Operational Software Non-Fatal System Errors ROM Fatal Systems ErrorsDacsnolock No Lock Operational Software Fatal System ErrorsMessage Code Radio Programming ErrorsEricsson Inc
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