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42 in flat screen has sound picture is white and u can see images is this a control board problem

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(BE MINDFUL OF THE PROPER ELECTRICAL SAFETY CONCERNS IN FOLLOWING THIS POST. REFER TO http://www.electricalsafety.org/.)

You could try to reseat (disconnect & reconnect) cable that connects the system board to the LCD panel because most likely, it is probably not getting a good signal. Otherwise the logic circuit is probably overpowered & getting more than 12 volts; meaning having to search for the culprit-which could be the board.

Posted on Nov 29, 2014

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6ya6ya
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Posted on Jan 02, 2017

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freetek
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SOURCE: LG 42'' TV has no sound but great picture. How do I get the sound?

You shouldn't need anything plugged into the accessory jacks to get local sound from your set. Go through the main setup menu and check audio settings; they may be set to turn off the internal speakers to send the sound to a home theatre that you apparently don't have. Most sets have that as a selection and supply L-R audio for an external system and mute the internal speakers.
FYI: The three connectors you mention are coded as follows:
Red - right channel audio White - left channel audio Yellow - composite video (contains synchronization signals and video)
These may be input connectors (for external VCR/DVD decks) so check your owner's guide to verify. 

Posted on Nov 23, 2008

  • 2318 Answers

SOURCE: 42 inches samsung plasma screen with sound and without image

Check this link to find the LJ41-02759A board for your TV. These boards fails quite often and the TV will power ON but with the same symptoms as yours.

Posted on Jul 15, 2009

Sparko1
  • 167 Answers

SOURCE: The picture on my Vizio 42

This is the fix for the Main board repair :
Locate IC 32 small 8 pin surface mount near top of Main Board and remove. Short pin 2 to pin 5. (pin 5 through 8 are together and pin 2 and 4 are together)
You will need a good TV Tech to do this for you.

Posted on Aug 04, 2009

  • 8457 Answers

SOURCE: i have a lg 42 in flat screen. the sound works but

Now,tv on,u have a flash of picture few sec.dies have sound left only?Yes,than those 2 long boards call the LCD inverter boards is dead.These 2 long LCD inverter boards provide a backlight to the LCD screen to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those 2 refurbishes long LCD inverter boards for the replacement.

Posted on Sep 15, 2010

SOURCE: sharp Lc-26sb24u white screen with sound

You will get a white screen when you unplug the t-con from the main board. Doing so removes power to the LCD panel. Verify that all of your voltages from the power supply are correct. If they are, I'd look at the t-con board. It sounds like there is a problem with the t-con that is pulling down the main board.

Posted on May 11, 2012

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Hi I have teviono 42" lcd4203id model and tv is white picture nothing on there the TV powers up light comes on but it doesn't bring picture what the fault would be?thanks


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1 Answer

Philips 47PFL5609D/30 White screen displays on 3/4 of screen


It sounds that the connection between t'Con board to panel have some problems; loose contact etc. Check it. Re-seat them once, and check. If you wish to get more details about faults to Philips PFL series flat panel TVs, check this link.

Feb 05, 2013 | Philips 47 in. LCD HDTV

1 Answer

We will get a black screen but still have sound.


Sounds like a main board that controls everything on the screen and then some.

Since a LCD do the flashlight test (what I call it) : darken the room as much as possible and with a flashlight and the set on look closely at the screen, see a very very faint image of the picture or not?

Dec 22, 2012 | Vizio 42 in. LCD TV

1 Answer

TV has white picture only


Hi,

If your TV have sounds but no picture or image only white screen..

The possible problem is T-CON board..T-con board is the responsible for picture on LCD TV..

Please try to replaced it to get your TV back to normal operation...
For specific parts and easy find the it online kindly get the part # of the said board (part # is located on the board itself printed with sticker)..

search it online using that part #..

Hope it helps..

Feb 10, 2012 | LG 42LC2D 42 in. LCD HDTV

1 Answer

No picture but sound on LG 42


Your back light inverter is bad. The backlight inverter is the board that turns on the lights on teh back of your screen so that you can see the image.


You can get get parts for this tv at www.interliquidparts.com

Nov 16, 2011 | LG 42LC2D 42 in. LCD HDTV

2 Answers

Samsung plasma 42 inchs with sound no picture


Most likely your Y Sustain panel has gone bad. I would have a qualified service center evaluate it to be sure.

Nov 07, 2009 | Samsung PS42P2S 42 in. Plasma Television

1 Answer

I have a toshiba Regza 42", was whatching, then all of a sudden the screen whent black, can still hear the sound, when I switch it on/Off it does every thing normal, theres the start sound, the screen...


Ur controller board it dead the one between the main video backlight and the power supply board.It going to cost u about $300-$400 to replaced the board by the tech.+ 1 year warenty.

Oct 22, 2009 | Panasonic TH-42PWD6UY 42 in. HD-Ready...

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