TH-75维修电器原理图手册

144/440(430)MHz FM DUAL BANDERTH-75A/EKENWOODSERVICE MANUAL1989-7 PRINTED IN JAPANB51-8012-0010)1349CONTENTSDISASSEMBLY FOR REAPIR.......AntennaCIRCUIT DESCRIPTION ............7(T90-0388-05SEMICONDUCTOR DATA............16DESCRIPTION OF COMPONENTS21PARTS LIST….24DISASSEMBLY................PACKING44Knob (VOL)ADJUSTMENT..45(K29-3096-14)×2PC BOARD VIEWS CIRCUIT DIAGRAMSUHF VC0X58-3590-00(U》Knob (SQL]Knob (ENCODER).50K29-3097-14)×2(K29-3098-04)VHF VC00X58-3590-000).511FX58-3610-XX……52MIC AMP(0X58-3620-XX.53CONTROL UNIT (X53-3200-XX).......54Knob (PTT)TX-RX UNIT (X57-3370-XX)(A/3)(C/3).........55(K29-3163-031TX-RX UNIT (X57-3370-XX)(B/3)..........57SCHEMATIC DIAGRAM.9BLOCK DIAGRAM.......6Case ass'y*LEVEL DIAGRAM......65{A02TERMINAL FUNCTIONS66Knob (RELEASE)(K29-3100-041BC-9(BATTERY CHARGER).,67BT-6(AAA MANGANESE/ALKALINE BATTERY CASE).67BC-10 (COMPACT CHARGER).........4…68Battery ass'yBC-11 (RAPID CHARGER)69W09-0507-05)HMC-2 (HEAD SET WITH VOX PTT)...............79PB-5/6/7/8/9 (Ni-Cd BATTERY).........81SC-22/23 (SOFT CASE)..........MB-5(MOBILE BRACKET).....83Photo is TH-75A.*Refer to parts list on page 25.WR-1(WATERPROOF CASE)83SMC-31/32(SPEAKER MICROPHONE).........8DangerTSU-6 (CTCSS UNIT)...........85Never attempt to disassemble the final module.SPECIFICATIONS..BACK COVERIt contains Berylium oxide.