Kenwood_TK-431_维修维护电器原理图手册_1992

900MHz FM TRANSCEIVERKENWOODTK-431SERVICE MANUAL1992-11 PRINTED IN JAPANB51-8203-000)1102CONTENTS:1..0Antenna.(T90-0459-05SYSTEMSET-UP..3OPERATING FEATURES..NSTALLATION.....13DISASSEMBLY FOR REPAIR..15BLOCK DIAGRAM.17CIRCUIT DESCRIPTION9SEMICONDUCTOR DATA.25DESCRIPTION OF COMPONENTS30Key topEXPLODED VIEW..44{K29-4798-021PACKING..45ADJUSTMENT...........46TERMINAL FUNCTIONS .......y…53PanelPC BOARD VIEWS(A62-0194-04)TX-RX UNIT(X57-4200-111(A/4.55TX-RX UNIT(X57-4200-111(B/4).63Case assyTX-RX UNIT (X57-4200-11C/4)..71A02-1682-14)TX-RX UNIT (X57-4200-111D/4)…75Knob (PTT)(K29-4799-13)VC0UNT(0X58-4000-11).77SCHEMATIC DIAGRAM.79KDM-6(DTMF KEY PANEL)........87KMC-17 (SPEAKER MICROPHONE).........91Knob (Release)KNB-9A (Ni-Cd BATTERY)91(K29-4800-04】KPG-8(PC PROGRAM INTERFACE)................9.1KSC-7 (RAPJD CHARGER)92KSC-76 (MULTIPLE RAPID CHARGER)..............103KSC-8 (COMPACT CHARGER).......................1.06KSC-86 (MULTIPLE CHARGER)...............107SPECIFICATIONS…BACK COVER