Ericsson LBI-39175A manual Table of Contents

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LBI-39175A

SERVICE SECTION

ORION™

136-174 MHz Dual Bandwidth

SYNTHESIZED TWO-WAY FM RADIO

TABLE OF CONTENTS
	Page
DESCRIPTION	2
INITIAL MEASUREMENTS	2
TRANSMITTER	2
RECEIVER	2
MAINTENANCE	3
PREVENTIVE MAINTENANCE	3
DISASSEMBLY PROCEDURE	4
ALIGNMENT PROCEDURES	7
INTRODUCTION	7
TRACKING DATA	9
TEST FREQUENCIES	9
SETTING TRACKING DATA	10
TRANSMITTER ALIGNMENT	11
PA TRANSISTOR REPLACEMENT	11
RECEIVER ALIGNMENT	12
TEST EQUIPMENT REQUIRED	12
ADJUSTMENT PROCEDURES	12
SQUELCH ADJUSTMENT	13
TROUBLESHOOTING GUIDE	13
INTRODUCTION	13
MICROPHONICS	13
SERVICEABLE PARTS	14
DIAGNOSTIC PROCEDURES	15
ADDITIONAL TOOLS REQUIRED	16
ERROR CODES	19

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Contents LBI-39175A Table of ContentsTransmitter DescriptionReceiver 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 SinadTransmitter Alignment PA Transistor ReplacementTo Replace the PA RF Transistors Receiver Alignment Adjustment ProceduresTest Equipment Required Squelch Adjustment Troubleshooting GuideMicrophonics Serviceable Parts Typical Orion Test Configuration Diagnostic ProceduresTransmitter Additional Tools RequiredPA PWB PWB ReceiverEGE Control UnitAll System Groups Orion System Errors Error CodesGeneral NON-FATAL Errors Fatal ErrorsError Message Description Operational Software Non-Fatal System Errors ROM Fatal Systems ErrorsDacsnolock No Lock Operational Software Fatal System ErrorsMessage Code Radio Programming ErrorsEricsson Inc