TH-25维修电器原理图手册

2-m FM HANDHELD TRANSCEIVERTH-25A/AT/EKENWOODSERVICE MANUALC1987-12PRINTED IN JAPANB51-3253-00(01573CONTENTSDISASSEMBLY FOR REPA1R,,,·,,,······2CIRCUIT DESCRIPTION,,·······gSEMICONDUCTOR DATA,,,,,,,,.,,,,,,.,··.····.·0DESCRIPTION OF COMPONENTS,.····.·.···:·:.,.,·,,,,PARTS LISTD1 SASSEBLY,,··始PACKING..29ADJUSTMENT .....................................30PC BOARD VIEWS/CIRCUIT DIAGRAMAVR UN1T{X58.3200-10l31FUN1T(X583210-11…3APC UN1T(X58-3220-10)...·....·.·..·.·.,...,,,,,PLL UN1TX58-3230-10),,,,,,,,,,,,,,,,·,·····MIC AMP UNIT [X59-3300-XX1.........................AFA4PUN1T(X59-331010)......·.····.·.·..··..,,3FR0NT-END UN1T{X59-3320-10).,.···.··.·.·.·..·.·..DRIVE UN1T{X59-3330-10)..,....·................,41SIGNALING UNIT (X52-3090-10)CONTROL UNIT (X53-3080-XX)........................TX-RXUN1T{X573160-XX).,.,·...·....·.·........,,4SCHEMATIC DIAGRAM,·.······.····:···,,,·7BLOCK DIAGRAMLEVEL DIAGRAM50TERMINAL FUNCTIONS,,,··-········。·········BC-9(BATTERY CHARGER)1BC-10(COMPACT CHARGER)BC-11 (RAPID CHARGER)..BT-6 (AAA MANGANESE/ALKALINE BATTERY CASE)........DC.1 DC ADAPTER).,,,,,,,,,,,,,,,,,,,63HMC-2 (HEAD SET WITH VOX PTT)PB-5/6/7/8/9(Ni-Cd BATTERY).····.·.·.·.·...·SC14/15/16s0 FT CASE).·..··..·.·.·.·..:·....:..,6SMC31 SPEAKER MICROPHONE).··.···········.··,·,·TSU6(CTCSS UNIT.·.·········MB-5 (MOBILE BRACKET)..............................WR.1 WATERPROOF CASE).·...,,.,.,,.,,,,,,,,,,,,,,,71SPECIFICATIONS............................BACK COVERPhoto is TH-25AT.方