Question about Toshiba 55TL515U 3D LCD TV

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White screen on

Hi There, When I turn on my Toshiba 55TL515U , I get white/grayish blank screen, wondering what cause the problem ? bad main-board or T-Con board ? Power supply is working.

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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/

Posted on Apr 15, 2016

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6ya6ya

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Posted on Jan 02, 2017

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1 Answer

What to do when your Toshiba 55TL515U powers on, works fine for a few hours, then suddenly turns off, and then continues to click as if it is turning on and off again?


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.

Jan 11, 2017 | Toshiba 55TL515U 3D LCD TV

1 Answer

My screen on my lg phone stopped working and only turned white but then goes back off and then doesnt work what should i do?


Hi,

When a phone screen is blank, has a white screen, etc, there are three things that could be the cause;

  1. Bad/defective screen and the solution is screen replacement
  2. Software/Virus problem and solution is to flash the phone
  3. Flex problem and solution is to change the flex. In some cases the flex might have shifted or not in it's right position, in this case, just fix the flex back properly and all will be well.
Bad/defective screen:



If your phone is having a white screen, first thing to do is dismantle the phone carefully, check if the screen is properly fixed to the phone board, also check if screen flex is intact. Once you've confirmed that all these are okay and screen is not still coming up, then it means your screen is bad. You can go ahead and replace the screen.



Make sure you confirm the screen is bad before you do any replacement.



Software/Virus:



Sometimes software/virus problem on phones are mistaken to screen problem. When a screen is white or blank, sometimes it's a virus problem. To further confirm, turn on the phone, wait for about 2 minutes when you know the phone must have booted fully, then use another phone to call the phone with white or blank screen. If the phone rings, it means it's not a virus problem, but if it doesn't ring, it means it's a software/virus problem.



If you discover your phone has a virus problem, you will have to flash the phone for it to display again,



Flex problem



When your phone screen is blank, white, has horizontal/vertical lines, turn images up-side-down, etc, be calm, there is nothing wrong with your screen, the problem is from the flex that connects your screen to the phone's main board. This flex must have worn out, that's why your screen is acting like any of the mentioned problem.



This is usually common with flip and slide phones. The flex worn out as a result of constant opening and close of the flip or slide phone. Samsung and Motorola phones mostly have this kind of problems.



Replacing the flex is the only solution to this problem. If you cannot change the flex yourself, maybe you should take the phone to a local repairer within your vicinity, so that the flex can be replaced.

I hope this helps.

Good luck.

Apr 23, 2011 | Cell Phones

2 Answers

My Sharp LC-45GX6U gives only a white screen when I turn it on.


Can you guys please elaborate on what the work-around was for this issue?

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1 Answer

I went to move my Toshiba p205 notebook from the desk to my bed and the screen turns white I've tried restarting it and window Vista makes the start-up sound but nothing comes up on the screen except a...


HI:
Try taking out the battery and leaving the unit unpluged and free of power for at least ten minutes. Then try restarting the unit normally, if the screen is still white then this means it is not receiving data from the graphics processor, if so then this is a indication of a faulty video processor or graphics chip, you may of gathered static electricty while walking across carpet that may of shorted the chip. In which case the only thing that can be done is to either replace the mother board in the unit or send it to toshiba for repair and replacement of the main board, you may want to contact Toshiba first before going futher as they may have a solution for you.

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1 Answer

N95 black creen


Hi,

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When a phone screen is blank, has a white screen, etc, there are three things that could be the cause;


  1. Bad/defective screen and the solution is screen replacement
  2. Software/Virus problem and solution is to flash the phone
  3. Flex problem and solution is to change the flex. In some cases the flex might have shifted or not in it's right position, in this case, just fix the flex back properly and all will be well.


Bad/defective screen:


If your phone is having a white screen, first thing to do is dismantle the phone carefully, check if the screen is properly fixed to the phone board, also check if screen flex is intact. Once you've confirmed that all these are okay and screen is not still coming up, then it means your screen is bad. You can go ahead and replace the screen.


Make sure you confirm the screen is bad before you do any replacement.


Software/Virus:


Sometimes software/virus problem on phones are mistaken to screen problem. When a screen is white or blank, sometimes it's a virus problem. To further confirm, turn on the phone, wait for about 2 minutes when you know the phone must have booted fully, then use another phone to call the phone with white or blank screen. If the phone rings, it means it's not a virus problem, but if it doesn't ring, it means it's a software/virus problem.


If you discover your phone has a virus problem, you will have to flash the phone for it to display again,


Flex problem


When your phone screen is blank, white, has horizontal/vertical lines, turn images up-side-down, etc, be calm, there is nothing wrong with your screen, the problem is from the flex that connects your screen to the phone's main board. This flex must have worn out, that's why your screen is acting like any of the mentioned problem.


This is usually common with flip and slide phones. The flex worn out as a result of constant opening and close of the flip or slide phone. Samsung and Motorola phones mostly have this kind of problems.


Replacing the flex is the only solution to this problem. If you cannot change the flex yourself, maybe you should take the phone to a local repairer within your vicinity, so that the flex can be replaced.


Good luck.

Aug 27, 2010 | Nokia N95 Cellular Phone

1 Answer

There is a white blank screen when i turn on


A white blank screen usually means that there is no data reaching the LCD. This can be caused by a bad video card, bad cable, or bad LCD. Rarely, the cable is just unplugged on either the back of the LCD or on the system board (or video card if separate).

Apr 25, 2010 | Computers & Internet

1 Answer

Screen gets distorted and turns white


Hi,

The part that is bad is the Ribbon flex cable that geos from the main board to the LCD board. Over time the cable becomes chaffed and will lose continuity between the traces. It can be fixed with

Tessco Part #: GH97-07715A

It does need to be soldered on the LCD side.

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My brothers i-mate sp5


ask this problem to nearest costomer care pls

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