Kenwood NXR-710 Service Manual

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

NXR-71055Display Unit (X54-3580-20) (A/2)Pin No. Name I/O FunctionCN501 (To X54-358 B/2 CN601)1 HK I Hook detection input/ RXD input2 MIC I MIC signal input3 MIG - MIC ground4 PTT I/O PTT input/ TDX output5 GND - Ground6 NC - No connection7 SB O Power supply output after power switch8 NC - No connection9 GND - Ground10 5M O Common 5V output11 VLI I Volume control input for AF signalCN502 (To X53-449 CN40)1 MIG - MIC ground2 MIC O MIC signal output3 VLI O Volume control output for AF signal4 5C I Common 5V output5 K4 I KEY input 46 K5 I KEY input 57 K2 O KEY input 28 K3 O KEY input 39 K1 O KEY input 110 HK/RXD O Hook detection output/ RXD input11 SOE I Output enable for shift register12 PTT/TXD I/O PTT output/ TDX input13 STB1 I Strobe data for shift register14 CLK I Clock data input15 DAT I Serial data input16 PSW O Power switch output17 GND - Ground18 NC - No connection19 SB I Power supply output after power switch20 SB I Power supply output after power switchDisplay Unit (X54-3580-20) (B/2)Pin No. Name I/O FunctionCN601 (To X54-358 A/2 CN501)1 VLI O Volume control output for AF signal2 5M I Common 5V input3 GND - Ground4 NC - No connection5 SB I Power supply output after power switch6 NC - No connection7 GND - Ground8 PTT I/O PTT output/ TDX inputPin No. Name I/O Function9 MIG - MIC ground10 MIC O MIC signal output11 HK O Hook detection output/ RXD outputJ601 (MIC jack)1 NC - No connection2 SB O Power supply output after power switch3 GND - Ground4 PTT/TXD I/O PTT input/ TDX output5 MIG - MIC ground6 MIC I MIC signal input7 HOOK/RXD I Hook detection input/ RXD input8 NC - No connectionTX-RX Unit (X57-7940-10)Pin No. Name I/O FunctionCN101 (To RX ANT)1 RX_SIGNAL I Receive signal input (Coaxial)CN202 (To X58-507 CN350)1 GND - Ground2 NC - No connection3 80C_2 O 8V power supply4 RXVCOA/B O VCO select5 RX_CV I Control voltage input6 NC - No connection7 RXASSIST O Assist voltage outputCN203 (To X58-507 CN351)1 VO I VCO input2 GND - GroundCN204 (To X58-507 CN303)1 FIN O VCO output2 SPSCLK0 O PLL clock output3 /RXPCS_TR O PLL chip select output4 SPSD0 O PLL data output5 33C O 3.3V power supply6 50C O 5V power supply7 LDR I PLL lock detect input8 REF O 19.2MHz reference clock outputCN500 (To Ext IN)1 REF IN I External reference input (Coaxial)CN605 (To X58-508 CN350)1 GND - Ground2 TXVCOB O VCOB select3 80C_1 O 8V power supply4 TXVCOA O VCOA select5 TX_CV I Control voltage input6 MO O Modulation outputTERMINAL FUNCTION