Question about Projection Televisions

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Was watching TV yesterday and all of a sudden it went out. When I turn the TV on, I hear a squeaking noise for about 10 seconds, then, nothing. No picture appears or anything. The power light just flashes. I called customer service and they had me to unplug the set, wait 30 seconds and plug it back in while pushing the power button. Said this was a reset for this TV but still nothing.

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This sounds like a bad convergence board.
You didn't mention the model but I bet its a samsung rear projection HDTV.
If the convergence board fails, you can diagnose by pulling the power leads to the 3 convergence circuits, then power on the tv, if it lights (picture will have very bad convergence) then that is most likely the cause.
You can usually buy a new convergence board for about $80-$100. Look on eBay by the make and model of the TV.
And its real easy to replace.

Posted on Jun 28, 2010

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No Picture/No Sound

This is very possibly a power surge, can you tell me how many times the light blinks, you probably have a bad power board now if you had a power surge.

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I have a rear projection Mitsubishi VS-70803 and fixed it with the help of eagle338 it was working fine for a year and a half. So new issue is I was watching TV and all the sudden i hear a faint spark

The set MAY have the self check feature.

If the set is plugged in and you turn it on and a few seconds later the power light goes off:

On front of set press and hold both the menu and input (device on some) buttons at same time for at least 5 seconds and release both.

Power light should then blink a two digit error code like 2 blinks, 2 blinks a pause and repeat the error for a total of 5 times.

If you get an error code let me know what it is.

May 22, 2012 | Projection Televisions

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While we were watching Sony KF60WE610 TV suddenly a loud noise came from the back of the TV,. Sound and picture were gone, and the red light started blinking. We waited 2 minutes and turn on the TV . Sound...

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TV screen turned on for only 10-15 secs then self turn off, followed soon after by the tv power another 10-15 seconds later. if i try this a few times screen wont light up at all.Is it the TV Lamp?

1) Can be dust do a good clean
2)Check for the fuse and change it if needed.
3) Capacitor needs to be changed, you'll have to findout which one.

Hope it helps, good luck

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No picture, hear sound, television will shut off after a few seconds.

Lamp life is only a few thousand hours. Hopefully its only the lamp that made to noise. Don't turn on again until lamp is replaced.

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Turning on problem with Panasonic Viva PT-43LC14

Sounds as you have a bad ballest. The ballest is the power supply that turns your lamp on. You can check your lamp by removing it and it should be clear and no broken pieces of glass. With the lamp removed install the cover and turn it on you should hear no noise and when the power light turns red you should see a LAMP red led blink every 5 seconds. If no noise then the lamp is bad. If you do hear noise you have a bad ballist. Hope this helps. Frank

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TV will not turn on

Probably needs a new HV Splitter block, they are very difficult to replace and can usually be accessed thru the front behind the speaker grill and behind convergence board.

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