Kenwood TH-K4AT Service Manual

Also see for TH-K4AT: Instruction manual Instruction manual Service manual

430MHz FM TRANSCEIVERTH-K4AT/K4E© 2003-9 PRINTED IN JAPANB51-8660-00 (S) 497SERVICE MANUALDISASSEMBLY FOR REPAIR ................................... 2CIRCUIT DESCRIPTION ............................................ 6SEMICONDUCTOR DATA ...................................... 14COMPONENTS DESCRIPTION .............................. 15PARTS LIST ............................................................. 17EXPLODED VIEW .................................................... 23PACKING ................................................................. 25ADJUSTMENT ........................................................ 27TERMINAL FUNCTION ........................................... 43PC BOARDTX-RX UNIT (X57-675X-XX) (A/3) ................... 44TX-RX UNIT (X57-675X-XX) (B/3),(C/3) .......... 48CONTENTSSCHEMATIC DIAGRAM .......................................... 50LEVEL DIAGRAM .................................................... 55BLOCK DIAGRAM ................................................... 56BC-21 (WALL CHARGER) ....................................... 58PB-43N (Ni-MH BATTERY PACK) .......................... 58BT-14 (BATTERY CASE) ......................................... 59PG-4Y (PROGRAMMING INTERFACE CABLE) ..... 59MCP-1A (MEMORY CONTROL PROGRAM) ......... 59SPECIFICATIONS ................................. BACK COVERKnob (ENC)(K29-5159-03)Knob (VOL)(K29-5150-03)Cabinet assy(16key)(A02-3822-23)Helical Antenna(T90-1019-25)Key top (16key)(K29-9272-02)Front glass(B10-2746-03)Knob(PTT/LAMP/MON)(K29-9274-03)Knob (ENC)(K29-5159-03)Knob (VOL)(K29-5150-03)Cabinet assy(4key)(A02-3823-23)Helical Antenna(T90-1019-25)Key top (4key)(K29-9276-02)Front glass(B10-2746-03)Knob(PTT/LAMP/MON)(K29-9274-03)TH-K4AT TH-K4ECap(SP/MIC/DC IN)(B09-0675-03)Cap(SP/MIC/DC IN)(B09-0675-03)