Kenwood TK-885 Service Manual

Also see for TK-885: Instruction manual Service manual

29TK-885SEMICONDUCTOR DATA /Microprocessor : 30620M8-394GP(TX-RX Unit IC511) Terminal functionPin No. Name I/O Function1 LSDOUT O Low speed data output.2 HSDOUT O High speed data output.3 HSDIN I High speed data input.4 DTMSTD I DTMF decode IC data detect input.5 SELF I No function.6 BYTE I +5V.7 CNVSS I GND.8 SFTOE O Shift register output enable.9 LCDCS O LCD driver chip select output.10 RESET I Microcomputer reset input.11 XOUT - 9.8304MHz (System clock).12 VSS - GND.13 XIN - 9.8304MHz (System clock).14 VCC - +5V.15 IGN I Ignition sense input.16 AFTRD I FFSK modulation data output timingpulse input.17 AFRTM I FFSK demodulation data input tim-ing pulse input.18 MICDAT O MIC key data output.19 CP O PLL IC clock output.20 BEEP O Beep data output.21 AFRDT I FFSK demodulation data input.22 AFREG1 O AF IC register switching data output 1.23 AFREG2 O AF IC register switching data output 2.24 EEPDAT O EEPROM data output.25 EN O D/A converter IC data strobe output.26 AFCLR O FFSK flame reset output.27 RXCOM2 I External hook input / External serialinterface input.28 TXCOM2 I/O External PTT input / External serialinterface output.29 TXCOM1 O External serial interface output.30 RXCOM1 I External serial interface input.31 LD I PLL unlock detect input.32 AFMSKE O FFSK modulation enable.(Enable active “H”)33 TXD O Serial interface output.34 HOOK I Hook input / Serial interface input.35 AFDAT O FFSK data output.