Question about Zenith P42W24B 42 in. Plasma Television

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SCREEN NOT LIGHTING

GREEN POWER LIGHT IS COMING ON BUT SCREEN NOT LIGHTING

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Plug tv out when turned on plug back in and turn on with remote

Posted on Jan 28, 2009

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Open internal fuse or power supply failure

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JVC LT40A320 turns on but no picture. Replaced Power Supply & Backlight Inverter (TV was hit by a lightning surge, would not do anything at first) now the green light comes on but no picture or sound.


Since your TV was struck by lighting, the power supply is the first board that gets affected by the sudden change in AC power.. The main board is the next board due to the fragile components and the excess of voltage that is supplied to it when the lighting happened. Since you have replaced the power supply already.. I would suggest to replace the main board and that should restore the functionality on your TV.

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Klv32s310A sony bravia gets start on with green light and after a second turns to stand by mode blinking the red light 6 times after each 2 second interval


Hello Sagar,
green led means tv powered on and status ok.
Red blinking light almost always means defect, overcurrent or overload.
6 blinks for Sony lcd flat tv means trouble in backlight circuit, or backlight inverter (backlight illumination or lighting makes your tv screen visible).
common problems in the inverter circuit, which drives the backlight, or shorted drivers, or short-circuit transformers or open circuits.
You should find the problem in the inverter circuit, or in the power supply board or in the main board.
Also look for bad capacitors (electrolytic caps) which are bulged and swollen on top.
Decoupling plugs from printed circuit boards can help you in finding the problem board by elimination method.
If you power up the set after unplugging certain plugs on f.e. the inverter board , this could result in getting a green power led and concluding that this board is faulty.

succes,
Walter from Antwerp, Belgium.

Dec 30, 2014 | Sony Flat Panel Televisions

1 Answer

No sound and no picture


The green indicator merely lets you know that power is getting to your TV. The absence of picture and sound could be due to power supply failure

May 18, 2013 | LG Flat Panel Televisions

1 Answer

Power light is coming on but there is nothing coming out on the screen


Check your lamp in the screen if is lighting and may the inverter that supply the lamp wont work. Is the sound working so if is working, then the problem is in the lamp section

Sep 22, 2011 | Flat Panel Televisions

1 Answer

My Magnavox TV give sound but no picture. When I turn it on the light in the bottom right hand screen goes green, then flashes to yellow and goes back to green. The screen does not change it is constantly...


You need to replace your backlight inverter.

Check that all voltages are coming from the power supply as they should. The power supply will be stamped with the correct amounts, and you just read with the multimeter to confirm.

After those check out ok, you will need to replace the inverter to "light" your screen again.


You can hear sound because the tv is ON, but the inverter isn't lighting the screen!


Hope this helps, please rate!

May 11, 2011 | Flat Panel Televisions

1 Answer

Our 42" lg tv is


no. there's some problem on its display circuits that it need to be corrected, picture becoming dark has some problem with the inverter power supply circuits that responsible for lighting the small lcd flourescent light. maybe some loose connection in the components cause that to happen

Feb 06, 2011 | LG 42LC2D 42 in. LCD HDTV

1 Answer

Hey Axle, I have run into an issue that has stumped me. I have a 50" Vizio Plasma made in 2006 the model is P50HDTV10A. I am confident that how the problem occurred is lighting ran in on the TV. What...


TRY TO UNPLUG THE POWER CABLE GINIG TO THE Y BOARD THE ONE COMING FROM THE POWER SUPPLY SOMTIMES BLUE AND WHITE IF CLICKING STOPS Y IS SHORT IF NOT UNPLUG POWER CABLE FROM POWER SUPPLY TO X BOARD CLIKING SHOULD STOP IS YES ITS THE X BOARD THATS SHORT TAKE TIME TO UNPLUG YOUR TV BEFORE DISCONNECTING ALSO BEFORE RECONNECTING Y AND X WAITE ATLEASE 5 MIN FOR CAP TO DISCHARGE

Jun 08, 2010 | Flat Panel Televisions

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