三星LA46C530F1R液晶电源板BN44-00341A 检查主板输出控制电源板:PS-ON/0V(低电平开机正常),PFC:390V电压正常,启动屏高压:BLU-ON(高电平开机正常),下图为此电源板各个故障点图解标注。 三星BN44-00341B液晶电源板正面图 |
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