Kenwood TK-3140 Service Manual

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TK-314012SEMICONDUCTOR DATAMicroprocesser : 30620M8A-XXXGP (TX-RX UNIT : IC309)n Pin function1 LSDO O Low speed data output. (QT/DQT/LTR)2 HSDO O High speed data output. (DTMF)3 HSDI I High speed data input. (2Tone)4 DSTB O D/A converter data strobe output.5 5RC O RX power control. H: TX L: RX6 BYTE - +5V.7 CNV SS - GND.8 AFDAT O MODEM MSK encode data output.9 AFRDT I MODEM MSK decode data input.10 RESET - CPU reset.11 XOUT - CPU clock.12 VSS - GND.13 XIN - CPU clock.14 VCC - +5V15 - - NC16 DTSTD I DTMF decoder data detect input.17 AFTRD I MODEM MSK encode data output timingPulse input.18 AFRTM I MODEM MSK decode data Input timingpulse input.19 EEPDAT I/O EEPROM data input/output.20 BEEP O Beep output.21 SKEY I [S] Key input.22 AKEY I [A] Key input.23 BKEY I [B] Key input.24 CKEY I [C] Key input.25 AUX I [AUX] Key input.26 PTT I [PTT] Key input.27 MONI I [MON] Key input.28 LAMP I [LAMP] Key input.29 AUXTXD O External serial interface (COM1) TDX1.30 AUXRXD I External serial interface (COM1) RXD1.31 DTMDAT I DTMF decoder data input.32 DTCLK O DTMF decoder clock output.33 TXD O Serial interface (COM0) TXD0 (to MICconnector).34 RXD I Serial interface (COM0) RXD0 (to MICconnector).35 DAT O Common data output.36 CLK O Common clock output.37 RDY - Can not used.38 ALE - Can not used.39 HOLD - Can not used.40 HLDA - Can not used.41 BLCK - Can not used.42 RD O Flash memory RD bus.43 BHE - Can not used.44 WR O Flash memory WR bus.45 SAVE O Battery save output.46 SELF I Self programming mode enable input.47 CS/MODE O LCD driver chip select output.48 CS0 O Flash memory chip enable.49 A19 - Can not used.50~59 A18~A9 - Flash memory address bus.Pin Port I/O FunctionNo. Name60 VCC - +5V61 A8 O Flash memory address bus.62 VSS - GND.63~70 A7~A0 O Flash memory address bus.71 UL I PLL unlock detect input.72 EP O PLL IC Data Strobe output.73 DP O PLL IC Data output.74 CP O PLL IC Clock output.75~78 EN4~1 I Rotary SW input 4~1.79~86 D7~D0 I Flash memory data bus.87 PF I SP-Mic PF switch input.88 VOL I Volume level input.89 BATT2 I Battery distinction input.90 BATT1 I Battery voltage91 ASQL I Squelch level input.92 TEMP I Thermistor input.93 RSSI I Received signal strength indicator input(RSSI).94 AVSS - GND.95 LSDI I Low speed data input (QT/DQT/LTR).96 VREF - +5V97 AVCC - +5V98 SFTSTB1 O Shift register data strobe output.99 OE O Shift register output enable output.100 AFSTB O MODEM data strobe output.Pin Port I/O FunctionNo. Name