Question about Hitachi 42V715 Rear Projection Television

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Buzzing and glowing on circuit board

My lamp went out and then there was a loud buzzing sound from the back. I took off the back panel and on the right is a small circuit board. There is a small (maybe 1/4" in diam. and height) white cylinder that buzzes really loud and glows like a light bulb. could this be just because the lamp went out? I dont want to spend $150 for a new lamp and still have a broken TV.

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That white cylinder is a capacitor and is very dangerous, you need to discharge it and replace it. Does the top seem to be bulging on it? If so, it is bad for sure and it is cheap for a new one. If it continues to buzz after replacing it, then your board has a problem. Replace capacitor before replacing lamp. The lamp still may be good

Posted on Jun 06, 2008

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Posted on Jan 02, 2017

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If the set is under warranty, call for warranty service. Out of warranty service is expensive for these TV sets.

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That is correct that canister is the lamp, seems its trying to light, If you have not replaced the lamp since you purchased the unit then this is the perfect time to do so. This buzzing from the ballast is normal just means it has received signal to light the lamp. Just start by replacing the LAMP>>>

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1 Answer

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