| 引脚 | 功能 | 待机电压V | TV静态电压V | 在线正向阻值KΩ | 在线反向阻值KΩ |
| 1 | FM\TV开关 | 5 | 5 | 8 | 16上升 |
| 2 | SCL时钟 | 3 | 3 | 7.5 | 18.5 |
| 3 | SDA时钟 | 3.2 | 2.6 | 7 | 18.5 |
| 4 | 调谐电压控制 | 3.3 | 3 | 8.5 | 15.5 |
| 5 | 键盘及指示灯控制 | 3.2 | 0.1 | 8 | 16.5 |
| 6 | 键盘控制 | 3.3 | 3.4 | 8 | 17 |
| 7 | 波段1\复位控制 | 2.7 | 4.4 | 8 | 15 |
| 8 | 波段2控制 | 2.7 | 4.4 | 8.5 | 15 |
| 9 | 数字电路接地GND | 0 | 0 | 0 | 0 |
| 10 | 低音开关 | 0 | 0 | 7.5 | 13 |
| 11 | DK\M制伴音控制 | 5 | 5 | 7.7 | 18 |
| 12 | GND接地 | 0 | 0 | 0 | 0 |
| 13 | 锁相环滤波 | 0 | 2.3 | 11.2 | 15.5 |
| 14 | +8V电源 | 0.2 | 8 | 1.5上升 | 1.5上升 |
| 15 | TV部分去耦外接端 | 0 | 5.1 | 8 | 16 |
| 16 | 行AFC2 | 0 | 2.8 | 11 | 17 |
| 17 | 行AFC1 | 0 | 2.7 | 11 | 17.5 |
| 18 | GND地 | 0 | 0 | 0 | 0 |
| 19 | DECBG去耦 | 0 | 4 | 10 | 14.5 |
| 20 | 枕形校正输出 | 0 | 2.8 | 11.3 | 16 |
| 21 | 负锯齿波输出 | 0 | 2.4 | 11 | 17 |
| 22 | 正锯齿波输出 | 0 | 2.4 | 11 | 17 |
| 23 | 中频输入1 | 0 | 2 | 11.5 | 16 |
| 24 | 中频输入2 | 0 | 2 | 11.5 | 15.4 |
| 25 | 场基准电流设置 | 0.01 | 4 | 12 | 15.8 |
| 26 | 场锯齿波 | 0 | 2.7 | 11.5 | 16.5 |
| 27 | 射频AGC输出 | 0.8 | 4 | 10.5 | 14.2 |
| 28 | 音频输出及去加重 | 0 | 3.2 | 11.1 | 13.5 |
| 29 | 音频解调去耦 | 0.2 | 2.4 | 12 | 16.5 |
| 30 | GND地 | 0 | 0 | 0 | 0 |
| 31 | 伴音PLL滤波 | 0 | 2.2 | 12 | 16.5 |
| 32 | 伴音中频输入 | 0 | 0.8 | 11 | 16.2 |
| 33 | 行激励输出 | 0 | 0.4 | 8 | 10.5上升 |
| 34 | 行逆程脉冲输入 | 0 | 0.6 | 11 | 15 |
| 35 | 外音频输入 | 0 | 3.4 | 12 | 16.5 |
| 36 | 高压保护 | 0 | 1.6 | 10.5 | 15.2 |
| 37 | 中频锁相环滤波 | 0 | 2.2 | 11.5 | 17 |
| 38 | 全电视信号输出 | 0 | 4 | 11.5 | 14 |
| 39 | +8V电源 | 0.1 | 8 | 1.5上升 | 1.5上升 |
| 40 | TV视频信号输入 | 0 | 3.8 | 11.5 | 18.5下降 |
| 41 | GND地 | 0 | 0 | 0 | 0 |
| 42 | S-Y信号输入 | 0 | 3.3 | 11 | 16 |
| 43 | S-C信号输入 | 0.1 | 0 | 12 | 16.5 |
| 44 | 音频输出 | 0 | 3.2 | 9.6 | 16 |
| 45 | RGB\YUV切换开关 | 0.8 | 1.6 | 11 | 14.5 |
| 46 | R2-Y信号输入 | 0.1 | 2.4 | 11.5 | 17.8 |
| 47 | G2-Y信号输入 | 0.1 | 2.4 | 11.5 | 17 |
| 48 | B2-U信号输入 | 0.1 | 2.4 | 11.6 | 17.5 |
| 49 | ABL | 0.1 | 2.8 | 11 | 9.8 |
| 50 | 黑电流检测输入 | 0 | 6 | 11.5 | 10.1 |
| 51 | R输出 | 0 | 2.2 | 2.1 | 2.1 |
| 52 | G输出 | 0 | 2 | 2.1 | 2.1 |
| 53 | B输出 | 0 | 2.9 | 2.1 | 2.1 |
| 54 | +3.3供电 | 3.3 | 3.2 | 6 | 10 |
| 55 | GND地 | 0 | 0 | 0 | 0 |
| 56 | +3.3供电 | 3.3 | 3.5 | 5.8 | 10 |
| 57 | GND地 | 0 | 0 | 0 | 0 |
| 58 | 12MHZ输入 | 1 | 1.2 | 8 | 32 |
| 59 | 12MHZ输出 | 1.6 | 测会关机 | 8 | 28 |
| 60 | 复位 | 0 | 0 | 0 | 0 |
| 61 | +3.3供电 | 3.3 | 3.4 | 5.6 | 10 |
| 62 | 音频开关控制 | 0 | 0 | 8.5 | 15 |
| 63 | 行推动级关闭控制 | 2.4 | 0 | 8.5 | 11 |
| 64 | 遥控信号输入 | 4.5 | 4.6 | 9 | 32 |
手机版|家电维修技术论坛 ( 鄂ICP备09003585号-2 )
GMT+8, 2025-11-28 15:33 , Processed in 0.758856 second(s), 8 queries , Gzip On, MemCache On.
Powered by Discuz! X3.4
Copyright © 2001-2020, Tencent Cloud.
集成电路OM8370、TDA9370引脚功能与电压资料: OM8370.rar
