Kenwood NXR-710 Service Manual

Also see for NEXEDGE NXR-710: Instruction manual Instruction manual Instruction manual Instruction manual Instruction manual

NXR-71054Pin No. Name I/O Function26 AGC O Auto gain control voltage27 33A O 3.3V voltage28 /EWP O EEPROM write control signal29 HWV1 I Hardware version signal30 I2CCK O Serial clock31 SPSCLK1 O Serial clock32 I2CDA I/O Serial data33 SPSD1 O Serial data34 /IOCS I IO expander chip select signal35 /EVCS O DA converter chip select signal36 NC - No connectionCN39IN IF_SIG I 450kHz IF signalOUT GND - GroundCN40 (To X54-358 CN502)1 SB O Power supply input2 SB O Power supply input3 GND - Ground4 NC - No connection5 DAT O Serial data6 PSW I Power switch signal7 STB1 O Data latch signal8 CLK O Serial clock9 SOE O Output enable signal10 TXD1 I/O MIC PTT, UART TX data11 K1 I Key scan input12 RXD1 I Hook detect signal, UART TX data13 K2 I Key scan input14 K3 I Key scan input15 K4 O Key scan output16 K5 O Key scan output17 VLI I Speaker audio level control voltage18 5C O 5V voltage19 MIG - MIC ground20 MIC I MIC signalCN41 (To TEST/SPKR 15pin Connector)1 SB O Power supply output2 SB O Power supply input3 GND - Ground4 GND - GroundCN42 (To TEST/SPKR 15pin Connector)1 AO5 O Auxiliary output 52 AO4 O Auxiliary output 43 AO3 O Auxiliary output 34 SPO O Speaker AF output5 SPO O Speaker AF outputPin No. Name I/O Function6 AO2 O Auxiliary output 27 AO1 O Auxiliary output 18 SPI I Internal speaker AF input9 RSI O RSSI voltage10 RD O RX data output11 SPG - Speaker ground12 SPG - Speaker groundCN43 (To INT SPKR )1 SPO O Internal speaker AF output2 SPG - Speaker groundCN44 (To Control I/O 25pin D-sub Connector)1 NC - No connection2 NC - No connection3 SPM_D25 I Speaker mute signal input4 IO6_D25 I/O Programmable function input/output 65 RXG - RX signal ground for RA,RD6 IO5_D25 I/O Programmable function input/output 57 RA_D25 O RX-Audio output (voice)8 IO4_D25 I/O Programmable function input/output 49 RD_D25 O RX-DATA output (data or signaling)10 IO3_D25 I/O Programmable function input/output 311 TA_D25 I TX audio input (voice)12 IO2_D25 I/O Programmable function input/output 213 TD_D25 I TX-DATA input (data or signaling)14 IO1_D25 I/O Programmable function input/output 115 DG - Control line ground16 TXG - TX signal ground for TA,TD17 AI3_D25 I Programmable function input 318 BER_DATA_D25 O Bit error rate data19 AI2_D25 I Programmable function input 220 SC_D25 O Squelch control output21 AI1_D25 I Programmable function input 122 /EPTT_D25 I External PTT23 TXD0_D25 O UART TX data24 EXT_MON_D25 I External monitor signal25 RXD0_D25 I UART RX data26 BER_CLK_D25 O Bit error rate clock27 NC (RSSI) No connection (RSSI)28 NC - No connection29 NC - No connection30 NC - No connectionCN301 (To X57-794 CN700)1 GND - Ground2 +B I Power supply input3 SB I Power supply inputTERMINAL FUNCTION