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故障现象 开机后黑屏,电源指示灯也不亮。查保险丝完好,测电源开关管V101D极300V正常。分析检修 故障多为s极串接的一只电阻器R120开路所致。
After the boot failure phenomenon black screen, power indicator light is not bright. Check the fuse intact, measure the power switch tube V101D very 300V normal. Analysis and troubleshooting for the most serious series of s120 resistor R120 open circuit due.