TM-631A_serv维修手册含电器原理图

144/220MHz FM DUAL BANDERTM-631AKENWOODSERVICE MANUALC1989-8 PRINTED IN JAPANB51-8016-00T)633KnobK29-3111-04×3Microphone(T91-0380-25)Panel ass'y(A20-701402Knob (SQ)(K29-3116-04)Knob (AF月(K293115-041Metallic cabinet (Top)Panel{A01-1048-02)(A20-7021-02)KENWOODKnob (MAIN)K29-3060-041y6.9704980Knob (SCAN,MUTE)(K29-3112-041×5Knob (Up/Down)K29-3114-04)×2Knob (F)Knob (Sub-Encoder)Knob (DUAL)(K29-3145-04)K29-3143-04)K29-3113-04)×3Knob (Button)(K27-3026-04)×2Knob (Low)Knob (Button)K29-3144041K27-3028-04Metallic cabinet (Bottom)(A01-1076-021CONTENTSCIRCUIT DESCRIPTION............2C0 NTROL UNIT(X53-3250-12)..61DESCRIPTION OF ELEMENTS..............17144 MHz TX-RX UNIT (X57-3400-12)63PARTS LIST.....25220 MHz TX-RX UNIT (X57-3410-10).........65EXPL0 DED VIEW…6FINAL UNIT (220 MHz)(X45-3350-10)..................67PACKING48FINAL UNIT (144 MHz)(X45-3350-10)..................68ADJUSTMENT..49SCHEMATIC DIAGRAM............69TERMINAL FUNCTIONS........56LEVEL DIAGRAM..73PC BOARD VIEW/SCHEMATIC DIAGRAMBLOCK DIAGRAM....5144 MHz PLL UNIT(X58-3670-10)..59TSU-6 (CTCSS UNIT).............................76220 MHz PLL UNIT(X58-3690-10)..60SPECIFICATIONS......................Back cover