TERMINAL FUNCTIONNX-80063Pin No. Name Description7 SHIFT Control signal output of Beat-shift function8~11 GND Ground12 /PRST Display CPU reset signal output13 AFO RX filtered AF signal output14 GND Ground15 ME MIC ground16 MIC MIC signal input17,18 GND Ground19 /PSW Detection signal input of power switch20 NC Non-connection21,22 SB Power output of switched power supply23 80C 8V output24 GND Ground25~30 SPO Speaker outputCN600 (to TX-RX unit B/2 CN901)1 NC Non-connection.2~7 SB Power output of switched power supply.8 AFO RX filtered AF signal output.9 DI Data signal input.10 50C 5V output.11 GND Ground.12 DEO RX Detected signal output.13 MI2 External MIC signal input.14 ME MIC ground.15 GND Ground.16 RXD0 Serial data input 0.17 AUXO2 AUX output 2.18 TXD0 Serial data output 0.19 AUXO1 AUX output 1.20 AUXIO9 AUX input/output 9.21 AUXIO5 AUX input/output 5.22 AUXIO8 AUX input/output 8.23 AUXIO4 AUX input/output 4.24 TXD2 Serial data output 2.25 AUXIO3 AUX input/output 3.26 RXD2 Serial data input 2.27 AUXIO2 AUX input/output 2.28 AUXIO1 AUX input/output 1.29 AUXIO7 AUX input/output 7.30 AUXIO6 AUX input/output 6.Pin No. Name DescriptionCN7051 SB Power output of switched power supply.2 SPI Speaker output.3 SPO Speaker input.4 PA Control signal output of PA function.5 HOR Control signal output of Horn alert function.6 GND Ground.CN4031 IGN Ignition sense input.2 GND Ground.TX-RX unit (X57-7390-10) (B/2)Pin No. Name DescriptionCN901 (to TX-RX unit A/2 CN600)1 AUXIO6 AUX input/output 6.2 AUXIO7 AUX input/output 7.3 AUXIO1 AUX input/output 1.4 AUXIO2 AUX input/output 2.5 RXD2 Serial data output 2.6 AUXIO3 AUX input/output 3.7 TXD2 Serial data input 2.8 AUXIO4 AUX input/output 4.9 AUXIO8 AUX input/output 8.10 AUXIO5 AUX input/output 5.11 AUXIO9 AUX input/output 9.12 AUXO1 AUX input 1.13 TXD0 Serial data input 0.14 AUXO2 AUX input 2.15 RXD0 Serial data output 0.16 GND Ground.17 ME MIC ground.18 MI2 External MIC signal output.19 DEO RX Detected signal input.20 GND Ground.21 50C 5V input.22 DI Data signal output.23 AFO RX filtered AF signal input.24 SB Power input of switched power supply.25 SB Power input of switched power supply.26 SB Power input of switched power supply.27 SB Power input of switched power supply.28 SB Power input of switched power supply.29 SB Power input of switched power supply.30 NC Non-connection.