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. . . . . . . . . . . . . . . LBI- 38849 SYSTEM BOARD . . . . . . . . . . . . . LBI- 38842 AUDIO/LOGIC BOARD . . . . . . . . . . LBI- 38843 AUDIO AMPLIFIER BOARD . . . . . . . LBI- 38844 FRONT CAP ASSEMBLY . . . . . . . . . LBI- 38850 LBI- 38974 PA BOARD . . . . . . . . . . . . . . . . . LBI- 38302 SERVICE SECTION . . . . . . . . . . . . LBI- 38851 DUAL FORMAT MDXO RADIO ASSEMBLY ISSUE 1 SYMBOL PART NUMBER DESCRIPTION APPLICATION ASSEMBLY 19D904183 — — — — ASSEMBLIES — — — A1 19D902123G22 RF BOARD A3 19D901891G2 SYSTEM BOARD A4 19D904025G2 AUDIO AMPLIFIER BOARD A5 19D903963G1 AUDIO/LOGIC BOARD 19C851822G1 PA BOARD — — — — — KITS — — — — — 344A4253G1 Hardware Kit (No. 1) 344A4255G7 Hardware Kit (No. 2) — — — — — CABLES — — — — 19A705301P6 Cable, Antenna 19B801467P1 Cable, J705 to J151 19B801467P2 Cable, J5 to J105 19B801454P36 Cable, RX to J104 19A705235P3 Cable, Ribbon, J901 on Audio Amplifier to J902 on System Board 19B801454P38 Cable, Antenna to J7 19B801454P37 Cable, TX to J101 19B802397P1 Cable, Handset — — — MISCELLANEOUS — — 19D904027P1 Casting 19C337683G2 Bracket 19D904185G1 Cover, Bottom 19D904186G1 Cover, Top 19D904187G1 Panel, Front 19B801358P18 Cable, 9 Foot, Power 19B235310P10 Nameplate, Combination * * COMPONENTS, ADDED, DELETED OR CHANGED BY PRODUCTION CHANGES Ericsson Inc. Private Radio Systems Mountain View Road Lynchburg, Virginia 24502 ericsson . 1- 800- 528- 7711 ( Outside USA, 804- 528- 7711) Printed in U.S.A. LBI- 38848D NOTICE! This manual covers Ericsson and General Electric products manufactured and sold by Ericsson Inc. NOTICE! Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier. Any repairs, alterations or substitution of recommended parts made by the user to this equipment not approved by the manufacturer could void the user’s authority to operate the equipment in addition to the manufacturer’s warranty. NOTICE! The software contained in this device is copyrighted by the Ericsson Inc. Unpublished rights are reserved under the copyright laws of the United States. TABLE OF CONTENTS Page SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 RF BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Synthesizer Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Transmit Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ReceiverCircuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 POWERAMPLIFIERBOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 AUDIO/ LOGIC BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 SYSTEMBOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 FRONTCAPASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ACCESSORIES AND OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 PC PROGRAMMER OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 PC PROGRAMMEDOPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Carrier Control Timer (CCT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Channel Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Squelch Tail Elimination (STE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Retry Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 HARDWARE AND HARDWARE OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 OPTIONCABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 NOISESUPPRESSIONKIT OPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 POWER CABLE OPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 EXTERNAL SPEAKER OPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 EXTERNALALARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SYSTEMDESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 EDACS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 CONVENTIONAL MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...