Question about Hitachi 50VF820 Projection TV

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TV doesn't come on right away it cycles for as much as 10 minutes before it finally comes on.

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  • churchbebo Oct 12, 2010

    Where are the capicators located, how many are there, can I remove and replace them myself? Can you supply a diagram? I have the back of the tv off and have access to the components.

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  • Hitachi Master
  • 11,800 Answers

The electrolytic capacitors have aged and there is a much bigger current passing thru them , overstressing the power source an triggering the protection system which shuts the tv off , which cuts the current thru the capacitors, which makes the protection system inactive, which allows the power source to start again a new power - shutdown cycle.
Only when the capacitors heat up from all that current that has passed thru then their internal resistance approaches the normal level so the current drops to tolerable levels allowing the power source to remain on.
Replace all capacitors immediately , or one will fail for good and fry a lot more.

Posted on Oct 12, 2010

  • Azrael SRL Oct 12, 2010

    The capacitors are all over your tv, they are soldered in and they must be replaced with identical ones. If you don't even know what a capacitor is then definitely you can't fix it - take the tv to a repair shop and let them do it. To replace them it will cost you $50 for all the capacitors and the price for 3 hours of labor so go to the cheapest one you can find.

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