Kenwood NXR-710 Service Manual

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

NXR-71057Pin No. Name I/O Function6 NC - No connection7 RXASSIST I Assist voltage inputCN351 (To X57-794 CN203)1 VO O VCO output2 GND - GroundTX VCO/PLL Unit (X58-5080-10)Pin No. Name I/O FunctionCN303 (To X57-794 CN609)1 FIN I VCO input2 SPSCLK0 I PLL clock input3 /TXPCS I PLL chip select input4 SPSD0 I PLL data input5 33C I 3.3V power supply6 50C I 5V power supply7 LDT O PLL lock detect output8 REF I 16.8MHz reference clock inputCN350 (To X57-794 CN605)1 GND - Ground2 TXVCOB I VCOB select3 80C_1 I 8V power supply4 TXVCOA I VCOA select5 TX_CV O Control voltage output6 MO I Modulation input7 TXASSIST I Assist voltage inputCN351 (To X57-794 CN608)1 VO O VCO output2 GND - GroundTERMINAL FUNCTIONCONTROL I/O 25 pin D-sub ConnectorPinNo.PinName I/O SignalTypeModifi -cation Description/ Port Type1 NC - - Land short -2 RXD2 I Digital No Asynchronous ReceiveData3 TXD2 O Digital No Asynchronous Send Data4 AI1 I Digital No Programmable FunctionInput 1/ CMOS5 AI2 I Digital No Programmable FunctionInput 2/ CMOS6 AI3 I Digital No Programmable FunctionInput 3/ CMOS7 DG - GND No Digital GND8 TD I Analog No TX Data Input (signaling)9 TA I Analog No TX Audio Input (voice)10 RD O Analog No RX Data Output (signaling)Not Squelched11 RA O Analog No RX Audio Output (voice)SquelchedTEST/SPKR 15 pin ConnectorPinNo.PinName I/O SignalTypeModifi-cation Description/ Port Type1 SB - Power No Power Supply2 SB - Power No Power Supply3 NC - - No -4 GND - GND No Digital GND5 GND - GND No Digital GND6 SPG - GND No Speaker GND7 RD O Analog No RX Data Output (signaling)Not Squelched8 RSSI O Analog No RSSI Output9 SPI I Analog No Internal Speaker Input10 AO1 O DigitalDefault Auxiliary Output 1Open collector$R203=47kD23=deleteAuxiliary Output 1Open collector with PU11 AO2 O DigitalDefault Auxiliary Output 2Open collector$R202=47kD29=deleteAuxiliary Output 2Open collector with PU12 SPO O Analog No External Speaker Output13 AO3 O DigitalDefault Auxiliary Output 3Open collector$R201=47kD31=deleteAuxiliary Output 3Open collector with PU14 AO4 O DigitalDefault Auxiliary Output 4Open collector$R200=47kD35=deleteAuxiliary Output 4Open collector with PU15 AO5 O DigitalDefault Auxiliary Output 5Open collector$R198=47kD12=deleteAuxiliary Output 5Open collector with PUPinNo.PinName I/O SignalTypeModifi-cation Description/ Port Type12 RXG - GND No RX Signal GND13 SPM I Digital No Speaker Mute/ CMOS14 BER_CLK O Digital No for Bit Error Rate Clock15 EMON I Digital No External Monitor Switch16 EPTT I Digital No External PTT Switch17 SC O Digital No Squelch Control18 BER_DAT O Digital No for Bit Error Rate Data19 TXG - GND No TX Siganl GND20 IO1 I/O Digital No Programmable Function I/O 121 IO2 I/O Digital No Programmable Function I/O 222 IO3 I/O Digital No Programmable Function I/O 323 IO4 I/O Digital No Programmable Function I/O 424 IO5 I/O Digital No Programmable Function I/O 525 IO6 I/O Digital No Programmable Function I/O 6