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No power to my 51inch vivitek. heard a popping noise and everything whent dead

Heard a snapping noise and everything whent black. now i have no power at all

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I had the same problem with my Pioneer PDP-4300

It was caused by a bad Powerboard. I called Pioneer 4 times to get them to fix it (website described problem as their fault and said they would replace). Finally I contacted the BBB and filed a complaint, 2 days later, I had paperwork authorizing my TV to get fixed and within a week someone was out replacing the power board.

Posted on Dec 23, 2008

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Toshiba 50hpx95 made popping noise then went black, now power light is blinking red. wont turn on


Hi, It sounds like you have an electrolytic capacitor that blew up( can be a bit noisy ) it'll more than likely be in the power supply section somewhere-it's not totally dead hence the blinking light ( which is a fault indication ) The bad component should be visible by possible signs of swelling on the top,( silver colored) a rubber seal on bottom being pushed down around the two metal leads near the circuit board , or even some brown discoloration around the faulty component/s,( it does not have to be a capacitor) I have heard integrated circuits pop before ( they will almost always leave a smoke stain near where it occurred ) also there may actually be a small hole in the faulty part. I hope this helps, Make sure unit is unplugged before servicing, good luck, Prodzilla

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1 Answer

Watching program, heard a pop snap and unit lost all power. Even the vizio logo on front panel is dead.


Seems like a filter capacitor has arced and blown a fuse or a couple of fuses. Open the back cover and check the main fuses. If you replace with new fuses and the TV keeps blowing the fuses then replace the bridge rectifier and main filter capacitor. A local repair shop could take care of this very quickly for you. Its not an expensive repair...
http://www.shopjimmy.com/

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1 Answer

Set is about 2 years old. Powered up and heard a loud snap/pop noise and unit went out. Will not come on Can you help?


U have a soldering iron,desoldering pump or desoldering braids,solders.U understand basic electronic and can u do basic soldering?Yes,take the tv aparts,take out the power supply board,that the board,where the power a/c cord plug into it.That the power supply board,most of the times those parts call capacitors are dead,these capacitors are alway bulges up on it tops or puffing up on it tops.These capacitors are dead,must be replaced.These capacitors are dying or already dead capacitors,that why they are bulging up on it tops or puffing up on it tops,after u replaced these capacitors ur tv will power up again and work.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

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TV red "on" light not coming on. Cannot get power to TV


The power supply board is dead.That the board where the power a/c plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power suply board for the replacement.

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Ur tv power supply board is dead.Replaced the power supply board,ur tv power will return,and the tv will work again.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

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1 Answer

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Two things in your TV can make that popping sound. One is the bulb of course and the other is a capacitor. Have you pulled out the bulb to inspect it? My guess is that you have broken glass in the cooling fan, which is why there is a grinding sound. Most bulbs tend to contain the glass from getting everywhere as it's only the filament inside that pops creating little diamond looking pieces inside the lens. If a surge was strong enough or if the bulb was poorly manufactured, the whole unit can explode inside spraying glass everywhere.

If the bulb looks fine, the pop must've been a capacitor on one of your circuit boards resulting in no display. Since the TV still powers on, your power supply and it's fuse appear to be fine. Check the bulb first and go from there.

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1 Answer

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chek your power module.check your electrolytic capacitors both in the input & output side of the power module.

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