Kenwood NX-820 Service Manual

Also see for NEXEDGE NX-820: Instruction manual Technical details Instruction manual Instruction manual Quick start guide

Contents

NX-82090Display unit (X54-3830-10)Pin No. Name I/O FunctionCN1 (to TX-RX unit CN514)1 SB I Battery voltage DC supply2 SB I Battery voltage DC supply3 SP– I Speaker input –4 SP– I Speaker input –5 SP+ I Speaker input +6 SP+ I Speaker input +7 BLC I LCD backlight control signal input8 MBL I MIC backlight control signal input9 RLED I Red LED control signal input10 GLED I Green LED control signal input11 BLED I Blue LED control signal input12 GND - Ground13 GND - Ground14 GND - Ground15 EMG O Emergency key detection16 GND - Ground17 NC - No connection18 50C I 5V DC power supply19 LCDDI I LCD data input20 LCDCE I LCD enable input21 LCDCL I LCD clock input22 LCDDO O LCD data output23 GND - Ground24 GND - Ground25 MIC O MIC signal output26 ME - MIC ground27 HOOK/RXD O HOOK/PC serial data28 PTT/TXD I/O PTT/PC serial data29 MKEY I/O MIC data detection30 POWER O Detection output of power switchJ1 (MIC jack)1 MBL O MIC backlight control2 SB O Battery voltage DC supply3 GND - Ground4 PTT I/O PTT/ PC serial data from radio5 ME - MIC ground6 MIC I MIC signal input7 HOOK I HOOK/ PC serial data to radio8 DM I/O MIC data detectionTERMINAL FUNCTION / 端子功能显示单元 (X54-3830-10)管脚号码名称输入 / 输出功能CN1 ( 至收发单元 CN514)1 SB 输入电池电压 DC 电源2 SB 输入电池电压 DC 电源3 SP– 输入扬声器 -4 SP– 输入扬声器 -5 SP+ 输入扬声器 +6 SP+ 输入扬声器 +7 BLC 输入 LCD 背光控制信号8 MBL 输入 MIC 背光控制信号9 RLED 输入红色 LED 控制信号10 GLED 输入绿色 LED 控制信号11 BLED 输入蓝色 LED 控制信号12 GND - 接地13 GND - 接地14 GND - 接地15 EMG 输出 EMG 键16 GND - 接地17 NC - 未连接18 50C 输入 5V DC 电源19 LCDDI 输入 LCD 数据20 LCDCE 输入 LCD 启用21 LCDCL 输入 LCD 时钟22 LCDDO 输出 LCD 数据23 GND - 接地24 GND - 接地25 MIC 输出 MIC 信号26 ME - MIC 接地27 HOOK/RXD 输出 HOOK/PC 串行数据28 PTT/TXD 输入 / 输出 PTT/PC 串行数据29 MKEY 输入 / 输出 MIC 数据检测30 POWER 输出电源开关的检测J1 (MIC 插孔 )1 MBL 输出 MIC 背光控制2 SB 输出电池电压 DC 电源3 GND - 接地4 PTT 输入 / 输出来自通信机的 PTT/PC 串行数据5 ME - MIC 接地6 MIC 输入 MIC 信号7 HOOK 输入送到通信机的 HOOK/PC 串行数据8 DM 输入 / 输出 MIC 数据检测