No power. I have a 1997 Sony KV-32V35 tv. Tv turned itself off while we were watching it. Now it won't turn on at all. Do I really have to spend $300 on a power supply?

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Usually, in those Sony sets, a crack developes on a small transformer in the horizontal drive circuit, which causes the horizontal output transistor to short. This immediately shorts out the switching transistors in the power supply and blows the Sony 0.1 ohm resistor fuse. A shorted flyback (high voltage) transformer will also have the same result. The power supply does NOT need to be replaced. The parts should be replaced, the flyback checked and the board resoldered by a qualified tech familiar with Sony sets.

Posted on Aug 23, 2007

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