| 测整机高压供电电路C2对地电压为+305V，正常：测低压供电电路C13对地电压为+18V，正常：测C5对地+5V电压，正常：测比较器IC1各脚对地电压均正常。用R×100挡电路板按钮开关SW301发现漏电，更换SW301后整机恢复正常。 |
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