Motorola Gp68 Part1 6881086c09 O Manual
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GP68 Portable Radios Service Manual # UHF 6881086C09-O March, 1997
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Motorola 8000 W. Sunrise Blvd. Ft. Lauderdale, FL 33322 6881086C09-O *6881086C09*
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Computer Software Copyrights The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motor- ola computer programs contained in the Motorola products described...
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Ó Motorola. All Rights Reserved Printed In U. S. A. March, 1997 6881086C09-O i Table of Contents Foreword Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v How to Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v Safety Information . . . . . . . . . . . . . ....
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ii 6881086C09-OMarch, 1997 Table of ContentsGP68 Portable Radios Service Manual Pre-emphasis Amp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 Limiter (Audio Filter IC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 Post-Limiter Filter (Audio Filter IC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
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March, 19976881086C09-O iii GP68 Portable Radios Service ManualTable of Contents Option Board Enable Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 DTMF Decode Option Kit numbers: PMLN 4063 Ñ Decode Board PMLN 4064 Ñ Decode Board (10-pack). . . . . . . . . . . . . 3-4 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
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iv 6881086C09-OMarch, 1997 Table of ContentsGP68 Portable Radios Service Manual Schematic Diagrams and Circuit Board Details Circuit Board Details for PMLD4036A/PMLD4037A VHF RF Board, 20/25/12.5 KHz . . . . . . . . . . . . . . . . . . . 1 Parts List for PMLD4036A/PMLD4037A VHF RF Board, 20/25/12.5 KHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Schematic Diagram for PMLD4036A/PMLD4037A VHF RF Board, 20/25/12.5 KHz. . . . . . . . . . . . . . . . . . . . . 3 Circuit Board Details...
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March, 1997 6881086C09-O v GP68 Portable Radios Service ManualForeword Scope of Manual Scope of Manual This manual is intended for use by experienced techni- cians familiar with similar types of equipment. It con- tains all service information required for the equipment described and is current as of the printing date. Changes which occur after the printing date are incor- porated by instruction manual revision. These revisions are added to the manuals as the engineering changes are...
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vi 6881086C09-OMarch, 1997 ForewordGP68 Portable Radios Service Manual Other Documentation Other Documentation Table 1 lists other documentation for the GP60 Series Portable Radios. Technical Support To obtain technical support, you may call Motorola’s Regional Support Centre. When you call, we ask that you have ready the model and serial numbers of the respective radio or its parts. Ordering Replacement Parts You can order additional components and some piece parts directly through your...
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March, 19976881086C09-O vii GP68 Portable Radios Service ManualForeword Model Chart Model Chart Description 20-channels, 1-5W, 12.5 kHz (keypad) 20-channels, 1-5W, 20/25 kHz (keypad) Model P93VNB00H2AA P93VNB20H2AA ItemDescription XPMLD4036GP68 VHF RF Board, 20/25 khz XPMLD4037GP68 VHF RF Board, 12.5 khz XXPMLN4059GP68 Controller Board XXPMLN4061GP68 Display Board XXPMAD4015VHF 14cm Antenna (155 — 174 MHz) XX6881086C10GP68 User Manual XXPMLN4049Front Cover (keypad) GP68 VHF 136 - 174 MHz X...