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Visco LCD TV 37" screen. Power light comes on but won't go backoff. Screen has gone blank

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Backlight may have gone as it doed in computer monitors
if you cab bring it yourself to a repaire and the one will give you an estimate free
if you need to buy a new one get one with the guarantee as the tecknology is yet to be improved and the life span of these monitors is no longer than two years
samsun usually offer a three year guarantee free but if you get another make or a better one akways invest in a purchase up a guarantee

Posted on Sep 27, 2009

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Posted on Jan 02, 2017

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I have a philips 37" flat screen TV, when I switch


hi,
There is problem with the back light of your tv. In LCD tvs CCFL are used as back light to give light to independant pixels. CCLF lamps required high voltage to light. This high voltage is provided by the inverter board inside ths tv. If any one of the chopper transformer (high voltage transformer) have some problem then the inverter will shuts off itself preventing damges to the power supply.

You have to check the 24V from the power supply. If its ok the you have to check the inverter board.if avilabe replace the same. if you are not able to do the same i will prefer to consult some one experienced in it. Back light inverter board will look like one in the picture.
ajin_g_25.jpg

ok

Aug 03, 2011 | Philips 37PF5321 37 in. HD-Ready LCD...

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I recently fixed the blinking green light problem following advice here. Now, about a week later, when I turn on the tv, I get image for a few seconds and then the screen goes blank/dark. Green light...


i have the same problem. i just replace the power board because of the "green blinking" light. now, light stays green, picture comes on for a few seconds, then blank....

did you fix your problem.

Aug 31, 2010 | Sharp Aquos LC-37G4U 37 in. HD-Ready LCD...

1 Answer

My 32LG70 won't turn on and the screen remains blank.


Try resoldering everything back onto the power board.They become brittle sometimes.

That doesn't do it then buy a cheap cap meter off ebay for around a tenner and firstly pull off every single electrolytic then ceramic capacitor and test.

Very easy to test,look on YouTube for videos.

Replace faulty&marginal caps and your problem should be gone.Remember m8,take your time,don't rush these things.

Jun 05, 2010 | LG 37LG30 37 in. LCD HDTV

2 Answers

Philips Magnavox 37" LCD Flat Screen 37MF331D Have replaced power board,main board,hit power a faint light on whole screen for about 2 seconds the nothing.


Disconnect the LVDS Cable that runs from the small signal board to the display panel and apply power,if the screen comes on,the Small signal board (aka Scaler Bd ) is the faulty board. other than that,all that's really left that has gone bad for me is the logic board.

Feb 19, 2009 | Toymax Magnavox 37MF331D 37 in. LCD TV

1 Answer

JVC LCD TV Screen is Blank but TV Still turned on


if you are getting sound, then chances are its the back light.

Replaceing the back light will cost about $400 but who knows i may be wrong, you need to explain your situation a little more vividly :)

Jan 01, 2009 | JVC LT-37X776 37 in. LCD HDTV

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