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[求助]三洋32CE530ALED电源板LK-PL320214A-2电路图

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Post time: 6 day(s) ago
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此机用户说是好好在看坏的,当初故障是指示灯不亮,经查是BD4A、BD4B(BMR5200)其中一只24V二极管击穿(这应该是此机的通病,以前碰到很多只要更换此二个二极管就OK),这次更换后指示灯红灯闪5V供电只有3.2V,不接负载5V、12V、24V输出都正常,接上假负载电压就跳动,断开24V输出管也一样,更换 初级电源芯片73D31还是一样,因没有参照图纸不好分析,希望有的师傅能提供此电路图!谢谢!

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 Author| Post time: 6 day(s) ago
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故障源找到了,经排查是电源初级芯片供电电路的R65/2R00开路。

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Post time: 6 day(s) ago
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Thank you very much for experience sharing.
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Post time: 6 day(s) ago
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谢谢楼主的有图有真相经验分享
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