Kenwood_TK-931_HD_维修维护电器原理图手册_1990

900MHz FM TRUNKED TRANSCEIVERTK-931/931(HD)KENWOODSERVICE MANUAL1990-8 PRINTED IN JAPANB51-8086-00(0)1103CasePanel assy(A01-2003-12)(A62-0014-03)KENWOODRectangular receptacleKey topDressing plate(E08-0673-05)(K29-4566-03)(A62-0017-04)CONTENTSGENERAL.......PC BOARD VIEWS TK-931SYSTEM SET-UP…4TX-RX UNIT(X57-3570-11)-72OPERATION FEATURES.....................5.LCD ASS'Y(B38-0333-05)…74INSTALLATION.11SCHEMATIC DIAGRAM TK-931......DISASSEMBLY FOR REPAIR16SCHEMATIC DIAGRAM TK-931(HD).79LEVEL DIAGRAM.18PC BOARD VIEWS TK-931(HD)BLOCK DIAGRAM.19TX-RX UNIT(X57-3560-11)..83CIRCUIT DESCRIPTION...21LCD ASS'Y(B38-0322-05)…85SEMICONDUCTOR DATA..........28KSP-1A (EXTERNAL SPEAKER).......86DESCRIPTION OF COMPONENTS38KSP-2A (AMPLIFIED EXTERNAL SPEAKER).......90PARTS LST42KPS-10A (DC POWER SUPPLY).96EXPLODED VIEW.....62KCT-10A/10B (CONTROL CABLE)103PACKING.63KPG-4 (PROGRAMMING INTERFACE)......103ADJUSTMENT.............KRK-1 (REMOTE KIT).103TERMINAL FUNCTIONS.71SPECIFICATIONSBACK COVER