蛟河电务段管内机车信号地面设备均采用微电子交流计数电码技术。由于部分元器件受气候、环境影响 ,特别是在主、副机交替发送电码时 ,机车接收的电码不规则 ,常出现掉码现象。经分析发现 ,在主、副机倒换电路中 ,电码为高电位 ,C6、C7充电至一定容量时 ,BG5导通 ,FZJ1吸起。但 Jiaohe Electrical Services section of the tube signal ground equipment are used micro-electronic exchange count code technology. As part of the components affected by climate and environment, especially in the main and auxiliary aircraft alternately send the code, the locomotive received irregular code, often appear out of code phenomenon. The analysis found that in the main and auxiliary machine switching circuit, the code is high potential, C6, C7 charge to a certain capacity, BG5 conduction, FZJ1 suction. but