拨掉排线(功率板到控制板),测量R16:1W-330K±1%;R17、R18:1W-240K±1%是否正常,更换不正常电阻。 如无法测,则直接更换R16:1W-330K±1%,不正常再更换R17、R18:1W-240K±1%。(单片机 1202) |
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