HJK-120型(z型)主控板CPU集成块电压 型号 D12 7407 管脚 1 2 3 4 5 6 7 8 9 10 11 12 13 14 电压 4.85 11.75 0.1 0.2 4.85 11.75 0 11.7 4.3 1.3 0.6 1.0 0.45 5 备注 P13提机0.2v 挂机0.5v
故障：P3=0.47 P4=1.47 P13=0.7提机0.45 型号 D13 7407 管脚 1 2 3
| HJK-120型(z型)主控板CPU集成块电压 | 型号 | D12 7407 | | 管脚 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | | 电压 | 4.85 | 11.75 | 0.1 | 0.2 | 4.85 | 11.75 | 0 | 11.7 | 4.3 | 1.3 | 0.6 | 1.0 | 0.45 | 5 | | 备注 | P13提机0.2v 挂机0.5v 故障：P3=0.47 P4=1.47 P13=0.7提机0.45 | | 型号 | D13 7407 | | 管脚 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | | 电压 | 2.8 | 6.5 | 4.9 | 11.8 | 4.9 | 11 | 0 | 11 | 4.9 | 11 | 4.9 | 0 | 0 | 5 | | 备注 | 或P1=3.6 P2=8.1正常 | | 型号 | D14 7407 | | 管脚 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | | 电压 | 4.5 | 11 | 3.7 | 9.1 | 1.45 | 3.3 | 0 | 0.3 | 0.1 | 1.4 | 0.6 | 11 | 4.5 | 5 | | 备注 | 故障：P10=11.7v (p12=0.27v) 注：P12=5.9V P13=2.5V表明245坏 | | 型号 | D15 7407 | | 管脚 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | | 电压 | 5 | 5 | 0.1 | 0.1 | 0.1 | 0.1 | 0 | 0 | 0 | 0.1 | 0.1 | 5 | 5 | 5 | | 备注 | | | 型号 | D16 245 | | 管脚 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 故障： p2=0.5 p18>3.0同时引起D14P12=5.9V P13=2.5V | | 电压 | 5 | 1.5 | 0 | 5 | 2.2 | 2.0 | 2.0 | 2.0 | 2.0 | 0 | | 管脚 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | | 电压 | 2.0 | 2.5 | 2.5 | 2.5 | 1.3 | 1.3 | 2.9 | 2.4 | 4.8 | 5 | | 型号 | D16 138 | | 7400 | | 管脚 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 4 | 11 | | | | | 电压 | 4.7 | 4.7 | 3.6 | 0 | 0 | 0 | 5 | 0 | 0-5 | 0 | | | | | 管脚 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 备注 | P4 0-5V变化（静态） | | 电压 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | P11拨号后0-5V变化 | | 备注 | P9-11:3.5V-5v | | | 型号 | 123 | | | 管脚 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | | | | | | | 电压 | 0 | 0-5 | 5 | 0 | 0 | 0 | 5 | 0 | | | | | | | 管脚 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | | | | | | | 电压 | 5 | 5 | 5 | 5 | 5 | 0 | 1.2 | 5 | | | | | | | 备注 | | | 申瓯HJK-120集团电话维修资料 申瓯HJKK-120电话交换机维修资料 申瓯120型程控电话交换机主板维修资料 |
