Kenwood TK-7180 Service Manual

Also see for TK-7180: Modification Information Function reference Brochure & specs Specification Instruction manual

TK-718020Pin No. Port Name I/O Function1 VREF - +5V2 AVCC - +5V3 SBC O Switched B control4 RXC O RX control5 TXC O TX control6 PC O TX APC adjust7 HSDO O High speed data output8 STSW O Side tone switch9 RTCL/EEPCL O RTC/EEPROM clock10 HSDIN I High speed data input11 NC - Non-connection12 RTDT/EEPDAT I/O RTC/EEPROM data13 BYTE - +5V14 CNVSS - DGND (Vss)15 DMUTE O Det mute16 AM2 O Audio mute 217 RST I Reset18 Xout O 11.0592MHz clock output19 DGND - DGND (Vss)20 Xin I 11.0592MHz clock input21 VCC1 - +5V22 NMI - +5V23 PSW I Power switch input24 INT I BATT voltage INT25 INTRA I RTC INT26 SHIFT/MODEL I/O Beat shift/Model select27 BEEP O Beep output28 SPSTB O Shift register strobe29 SOE O Shift register output enable30 AIO5 I/O AUX I/O 531 AIO9 I/O AUX I/O 932 DSTB O D/A converter LD33 LSDO O Low speed data output34 RXD2 I RXD235 TXD2 O TXD236 TXD1 O TXD1/PTT (Scrambler board)37 Vcc1 - +5V38 RXD1 I RXD139 DGND - DGND (Vss)40 MM1 O MIC mute 141 PSENS I Panel sense42 TXD O TXD43 RXD I RXD44 AFDAT O BB TDATA and DTRCLK45 AFDIO I/O BB DI/O46 AFDIR O BB DIR47 DTRLOAD O BB DTMF enable48 AFSTD I BB STDPin No. Port Name I/O Function49 LSW O BB LIM switch50 RDY - +5V51 NC - Non-connection52 HOLD - +5V53 NC - Non-connection54~57 AIO4~AIO1 I/O AUX I/O 4~158 NC - Non-connection59 RD O Read (RD)60 NC - Non-connection61 WR O Write (WR)62~64 AIO8~AIO6 I/O AUX I/O 8~665,66 NC - Non-connection67 RST2 O Display μ-com reset68 CS0 O Chip select 069 NC - Non-connection70~79 A18~A9 O Address bus 18~980 UL I PLL unlock81 PLE O PLL enable82 PCK O PLL clock83 NC - Non-connection84 OPT6 I/O Option boad I/F 685 VCC2 - +5V86 A8 O Address bus 887 DGND - DGND (Vss)88~95 A7~A0 O Address bus 7~096 IGN I Ignition sense97 AFRTM I BB RDF/FD98 TCLK/DTRDO I BB TCLK and DTRDO99 MM2 O MIC mute2100 T/R O TX/RX switch101 AM1 O Audio mute 1102 EMTON O EM tone switch103 NC - Non-connection104~111 D7~D0 I/O Data bus 7~0112 DT O Serial data113 CK O Serial clock114 W/N O Wide/Narrow switch115~117 OPT 1~OPT 3 I/O Option boad I/F 1~3118,119 OPT 4, OPT 5 O Option boad I/F 4, 5120 H/L O High/Low power switch121 THP I TX thermal input122,123 NC - Non-connection124 ASQ I RX analog SQ. input125 RSSI I RX RSSI input126 NC - Non-connection127 AGND - AGND (Vss)128 LSDIN I Low speed data inputSEMICONDUCTOR DATAMicroprocesser : 30625MGP-169GP (TX-RX unit IC404)