Question about Toshiba 42HP66 42 in. LCD Television

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Toshiba 42 inch plasma TV: small pop and then no picture. sound is good.

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U R F*cked

Posted on Aug 06, 2010

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My tv image goes off while watching tv,I do have audio but no image.


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Toshiba Plasma TV HP 42 Inch pop no picture


Most common issue is power supply board fails--Plasma sets do not sell single parts--only a complete board---may need a tech or shop to look and determine what is wrong.

I can suggest things but need to know your skill levels--this is not for everyone....

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Some components have failed inside the board. Kindly do not use the TV until serviced by a qualified technician.

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1 Answer

42 inch Toshiba Plasma TV has sound but no picture, wife heard a small pop when the picture went off. It is about 4 years old. What could be the problem and is it cost effective to fix or replace it.


That popping sound is usually a capacitor or "cap". Depending on what board it was on, would depend on what needs to be replaced. Usually its the main "power" board. I would say it probably would be worth replacing as these boards are generally not that expensive. If you take the back of the TV off, you can look at the boards. Caps are cylindrical and are various heights and widths. However they should have a flat top and bottom. Look for one that has a round top or bottom. Do NOT touch the boards though. Caps can store energy long after the TV has been unplugged and static electricity can damage sensitive chips.

Please rate if this was helpful

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I have 42 inch plazma no picture


Ur backlight video inverter board is dead.Buy parts like capacitors for replacement with soldering or buy the whole board.Tries these websites.Shopjimmy.com,Partstore.com or Ebay.com.

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Most likely what happened is one of the capacitors went bad. When a capacitors goes bad it produces a popping sound. This could be an easy and cheap fix if you find the bad capacitor or capacitors. The bad capacitor will have a bulging top most likely on the power board but could be anywhere.

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42" Toshiba Plasma TV no picture or sound


My experience with 42" plasma tv's with no picture or sound was a missing power supply voltage. On the power supply board check voltages on the plug. The voltages should be marked on the board,

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1 Answer

Toshiba 42 inch plasma tv


sound no picture. well not entirely bad this idicate your signal getting through and you have partial power. however this could mean that the actuall panel is faulty. if so new set time. What is the model and make of set.

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Our LG 50" plasma tv screen went black after a popping noise but still had sound, after great diliberations decided to take the back off and have a peek!
We unplugged the tv and tested the fuses (there were three we could see) one had blown, the one on the left as you look at the back of the tv it also has one above it. We wrote the code/seriel number down and took the fuse to the electrical wholesalers Maplin and bought a pack of 10 fuses for £1.29 replaced the fuse in the tv and everything now fine!!!!!!
Hope this might be of use to anyone whose lost the picture after a loud popping/snacking noise but still has sound.

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ysus pcb that supplies voltage to the panel is faulty

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