Question about Sharp Aquos LC-20B2U 20 in. LCD Television

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Fuse F3701 is blow-up after few munites turns on. If replace a fuse F3701 again, it work, but the set turns of any time, check the set: Fuse F3701 is blow again?

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Look at the power board " the one with the fuse" for capacitors that look puffed at the top or leaking at the bottom. If these are leaky the voltage drop will cause the current to rise and pop the fuse. After a time the caps will get bad enough that the set will stop working and may cause more problems.

Posted on Jul 10, 2008

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