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Wd55ub4530, turn on with chalkie white screen with various colors on screen,wondering if i should replace t-con or main board

Wondering if screen is defective or not,

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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innocent asia

  • 131 Answers

SOURCE: Viewsonic N2635W. Did not turned on. I replaced

You should also replace the cable that connects the main board with the control button.
Also replace the control button main board(a motherboard with all the buttons)
For example look here. It should look like this http://www.interliquidparts.com/wp-content/uploads/wpsc/product_images/IMG_6420.JPG

finally replace the ribbon that connects it to the main =board since these are the only important things that could still cause the problem you have.


Please rate if this helped you.

Posted on Apr 19, 2011

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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

chapelure09

Anoni Muss

  • 1 Answer

SOURCE: Hannspree 28 Inch Lcd Tv Model Number HSG1075

Stop buying hot TVs folks. If you bought it legit, you can take it back.

Posted on Oct 23, 2013

jorge888

Its Me Charlie

  • 14 Answers

SOURCE: Polaroid 3211-TLXB solarized / negative image

Just replace the T-Con board and you dont need any soldering at all. JUst be careful for the flex connector.

Posted on Jan 20, 2015

Testimonial: "Will do. Thank you, Jorge!"

drivealot

  • 61 Answers

SOURCE: Why did it work before installation, now flashes numerous different colors?

Before installing replacement parts???

I can assume that the t-con board or the video board had terminal connectors or ribbon connectors. What is often overlooked is a misaligned connector or worse, a broken or bent pin. Try examining these connection points. You may have to use a magnifying glass. A defective screen usually goes black or produces broken images and/or color points.
I hope this helps.

Posted on May 30, 2015

Testimonial: "No I meant I had the tv lying on the ground and it was working, but when I hung it on the wall the picture went and the sound started crackling. I don't know why the moderation team changed my title."

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1 Answer

White screen on


The T con board or the LCD panel is faulty . You have to replace the TCON Board to confirm whether it was tcon or the LCD panel.
If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

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Hi!,

I would replace the main board but check the power board before to see if it is ok. Good luck,


Serge.

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Why did it work before installation, now flashes numerous different colors?


Before installing replacement parts???

I can assume that the t-con board or the video board had terminal connectors or ribbon connectors. What is often overlooked is a misaligned connector or worse, a broken or bent pin. Try examining these connection points. You may have to use a magnifying glass. A defective screen usually goes black or produces broken images and/or color points.
I hope this helps.

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Why does my sanyo dp46848 screen go dark but whites are too bright?


First try to gently push the cable between the main board and the LCD controller (T-CON) board and if that doesn't affect the image then replace the T-con board.

Jun 30, 2014 | Sanyo DP46848 LCD TV

1 Answer

Lg 47lv355u tv


Ok t-con board is connected to main board which is giving signal and logic supply.. If the main board failed or giving a over voltage to the t-con it possibly your T-con gone out (new) again.

To isolate the problem try to replace the main board.

Dec 05, 2012 | Televison & Video

1 Answer

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.

May 11, 2012 | Sharp LC Televison & Video

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I have a Proview LCD TV model # PA-32JK1A. When I plug in the TV, the orange standby light comes on like usual. When I turn on the TV (with the remote or the front panel) the blue power light will come...


Hi, I just read what you have posted on my LCD TV troubleshooting guide, it does not sound like bad T-CON board because you do not get the sound, you disconnected the main T-CON connector from the main board and get the glowing screen but you still do not hae sound.
In the LCD TV, you can discoonect the backlights inverter board power cables (cables from power supply to the backlights inverter board), and the T-CON board cables from the the main board to the T-CON, you should still get the sound since there are no feedback singals from the T-CON or from the backlights inverter boards to tell the main board that they are bad or not.
If you are 100% sure that you do not have sound on all the input modes then I would suspect the main board problem.
At least the backlights ineverter is good.
Do you get the 12v at the T-CON board surface mounted fuse?

Dec 20, 2010 | Televison & Video

1 Answer

JVC LCD TV Model LT-47EM59 -- White Screen only


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Oct 30, 2017 | JVC 47 in. LCD TV

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