Kenwood TH-F6A Service Manual

Also see for TH-F6A: Instruction manual Instruction manual Supplemental service manual Service manual Quick reference

Contents

TH-F6A/F7E17Pin I/O Pin name Active level FunctionNo.Pin I/O Pin name Active level FunctionNo.SEMICONDUCTOR DATA38 O LAPS H Key, LCD ilumination powersupply H:ON39 O AFC H Audio amp power supply SW,key,LCD ilumination, powersupply SW H:ON40 I RxD1 L UART data input from PC pin41 O TxD1 L UART data output to PC pin42 O AFV L AF mute switchL:DCS,CTCSS ON43 O RESLCD H LCD driver reset L:Reset44 O R0LCD --- LCD driver data type bitL:Control H:Display45 O ELCD LCD driver enableH:Enable46 O RWLCD --- LCD driver read/writeL:write47 O MIC MUTE H Micmute switch H:MUTE48-55 I/O D0-7 --- LCD driver data line56-60 I KEYI1-5 L Key matrix input 1-561 I TYPE L Destination, channel displaymode diode input62 O 96H H 9600BPSH:ON63 O ABS TONE band switchH:B band L:A band64-68 O KEYO1-5 L Key matrix output 1-569 O LCK Shift register enableH:ON70 I PTT2 L External [PTT] key inputL:pressed71 O M4SS H M4SSW H:ON72 - --- --- Ground73 O BVCOS H B Band VCO select switchH:VCO274 O WFMS L W-FM switch L:WFM75 O BAMS L B Band FM detector switchL:FM,WFM mode76 O DACEN --- D/A enable77 O SPM H Receiving on mute SWL:MUTE78 O BMS H Band matching SW79 O BUSY L 9600bps BUSY outputH:BUSY80 O BSHIFT L Beet shift SW H:ON81 - --- --- Positive power supply82 O VVOXS L VOX power supplyVOX ON, at TX:L83 O VSSBS L SSB power supplyL:SSB,CW84 O APC/BPFA --- APC & A BPF tuning PWMoutput 144,220MHz bandrecive85 O BPFB --- B band BPF PWM outputinput with the bar antenna86 O VRAS L A Band receiver power supplyReceiving:L87 O BEEP Beep output88 I SI EEPROM data input line(EEPROM SO pin)89 O CLK Common clock line90 O DATA Common data line91 O CS EEPROM chip selectL:Enable92 O VTXS L Transmission power supplyL:Transmission93 O VCVS L B band VCO, PLL power supplyswitch L:B band ON94 I VPP/TEST Flash write 10V application pinNormally:L95 O RLEDA L A band busy LED L:ON96 O TLEDA L A band transmission LEDL:ON97 O RLEDB L B band busy LED L:ON98 O TLEDB L B band transmission LEDL:ON99 I PTT1 L PTT SW(main)L:Transmisson100 O TXL H Transmission VCO1 shiftH:Shift ON