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例1:夏普25N42-E2彩电故障现象:接通电源后电源指示灯D1101亮(红色),按面板上“二次开机”键S1101,工作状态指示灯D1102瞬间发出红光,随即熄灭。同时,机内继电器发
Example 1: Sharp 25N42-E2 Color TV Fault phenomenon: Turn on the power after the power indicator light D1101 (red), press the “secondary boot ” button on the panel S1101, working status indicator light D1102 instantly red, then goes out. At the same time, the machine relay