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1问题的产生在京广线宜沟站一次对LWJ98A型6502电气集中微机监测设备日常维护中,电务值班人员在“天窗”点内,拔出“接通道岔表示按钮”,发现控制台道岔表示灯全部熄灭,而微机监测显示器没有任何变化。2问题分析原微机监测道岔表示灯电路如图1所示,道岔采集机使用了6502电气集?
1 problem occurred in Beijing Guangguang Yigou Station once LWJ98A type 6502 electrical centralized computer monitoring equipment routine maintenance, the electrical on duty staff in the “skylight” point, pull out the “Turn on switch indication button” and found that the console switch Said the lights are all off, but the computer monitor without any change. 2 Problem Analysis The original computer monitoring turnout lamp circuit shown in Figure 1, the switch collector 6502 using a set of electrical?