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海尔洗衣机主板换CPU

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Post time: 2026-3-14 11:00:10
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本帖最后由 老徐维修 于 2026-3-14 11:12 编辑

海尔匀动力洗衣机开机没有反应。(主要是拆机板也太贵)主板和显示板检查有5伏。显示板5伏是主板供电,证明主板电源正常。用示波器检查显示板有发出通讯信号,主板没有发出通讯信号。(这种板两块板通讯才能开机工作)。主板坏,进一步发现晶振没有波形。果断换。还是没有波形。测晶振两脚电压没有压差。(CPU型号R5F212A7,非常特殊 没有外部时钟能读出写入程序)从空调板上拆了块R5F212A7装洗衣机主板上。把读出的程序写入。上电测晶振有波形了,测向显示板通讯,有波形了。上机按开机。灯亮了。心里那个舒服。测试洗衣机正常工作。

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Post time: 2026-3-14 17:26:03
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洗衣机的板子带胶,修起来太费事!
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Post time: 2026-9-30 16:55:28
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师傅用的什么编程器读写的程序啊,能分享不
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 Author| Post time: 2026-9-30 19:43:22
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j126i 2026-9-30 16:55
师傅用的什么编程器读写的程序啊,能分享不

R8C 4线读写
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