还已为是电源板坏,拆下电源板单独测试12V待机正常/24V屏电要开机才有输出
这电源板正常啊
再测主板RSAG7.820.4801/ROH 的 12V输入对地短路肯定有什么东西坏了,苦于没有图纸不知电路走向还望各位高手指点....手机版|家电维修技术论坛 ( 鄂ICP备09003585号-2 )
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海信液晶电视机4801主板电路原理图_E.pdf
