Question about LG RZ-17LZ40 17 in. LCD Television

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Lcd tv backlight prob

When the tv is turned on the picture dissapears after half a second of appearing, the picture and sound is there its the backlight that goes off

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  • Anonymous Mar 22, 2014

    Have tried connecting other devices to see if the problem is localized just to the TV, cable is good and strong. Have tried different source options with the TV control but to no avail. Nothing seems to be working.



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  • 106 Answers

You need to replace the inverter board if you can find the spare part. Otherwise you need to replace the whole lcd panel.

Posted on Jan 01, 2008


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1 Answer

Why does the screen go black but yet still sound?

Moat likely it is because your power supply is defective and it is not producing tv sufficient voltage to power the backlight. I would replace the power supply.

Jun 29, 2014 | Samsung LN-S4041D 40 in. LCD HDTV

1 Answer

Sounds from tv when titles appear

U mean the tv have pictures flashes only a few sec. than dies have the tv pragram sound left only?Yes? Mean ur tv have a tv LCD Screen Panel have no tv LCD screen backlight to produce tv pictures tv now are having backlight problems.The tv have 1 or 2 long boards that are called LCD inverter boards problems and the causes.These 1 or 2 long Lcd inverter boards only job are to produced backlight for the tv LCD screen panel to hold on to give the tv screen panel to have pictures only.Tries websites like,EBAY.COM to those refurbishes 1 or 2 long LCD inverter boards for the replacement.

Oct 03, 2011 | Philips Televison & Video

2 Answers


have youtryehave you tried going to menu options and turning off the power save you might try changing the scart cable any interferance will cause the tv to turn of. my little boy often knocks the scart lead on my set an the tv turns itself off when he does this ,. hope this helps good luck

Dec 11, 2010 | LG 42LG30 42 in. LCD HDTV

2 Answers

The picture appears for a second or two then goes out. You can still hear the sound. If you turn the TV off then back on the picture appears again then goes out.

You need a new backlight inverter board. Do a search online using the part number on the board to find one. Should be less than $100

Apr 26, 2010 | Westinghouse LTV-27w7 7 in. LCD HDTV

1 Answer

I have a problem with a gift from my sister, she gave me a viewsonic n2750w that she gave up on once it started to turn on and shut off on its own, i took it to my place, turned it on, the screen turns on...

Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board will solved this problems.Tries Websites, to buy a refurbish LCD inverter backlight board for the replacement.The board is a long in shape.

Mar 22, 2010 | ViewSonic N2750w 27 in. HD-Ready LCD...

1 Answer

There is a picture for about 5-10 seconds then the

Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board,will get picture back.Tries these websites, to buy a refurbish LCD inverter backlight board for the replacement.It a long board in shape.

Mar 16, 2010 | JVC LT-37X688 37 in. LCD HDTV

2 Answers

Picture loss

Hi Joe
has the problem been resolved, I am experiencing the same thing, guarantee is 3 weeks out of date -typical!!

Jan 16, 2010 | Goodmans GTVL32W27HDF 32 in. LCD TV

1 Answer

My HyVision LCD TV Picture disappears after a few seconds

It seems that the "backlight" has gone bad. "Backlight" is the device that allows to see the picture in an LCD TV, when they are about to go bad the symptom that you describe is very usual. It depends on the tv manufacturers and model to expect how long the "backlight" is going to last in a tv.You can shop around for a replacement part and try to do it yourself or take it to an especialized technician. Good luck..

Jan 03, 2010 | MegaVision Hyvision Megavision 191 19"...

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