Question about Symphonic SC309D 9 in. TV/VCR Combo

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Ac power Symphonic sc309D blows fuse- Dc power ok

The fuse blows instantly on the ac line, dc power works but seems to pull high current. Checked all bridge dioes and caps, none shorted. any ideas?

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The most likely problem is a shorted diode, I suggest replacing them even if they do not test shorted while not under load. If it is not the diode rectifiers, there is probably a resister in the power supply that is shorted, remember also that it can also be both. Lastly, it can be a capacitor within the power supply.
I Wish You Well

Posted on May 01, 2009

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