LG Flatron L226WTQ-BF white screen problem

Q&A about LG LCD monitors

LG Flatron L226WTQ-BF white screen problem

Postby cporantes » Sun Sep 12, 2010 4:41 pm

I have an LG Flatron L226WTQ-BF that only displays a white screen. The screen is white when turned on no matter if I use VGA, DVI or no computer plugged in at all. What could be the cause of this? And, how can I fix it?

I opened the monitor and here is a photo of the caps:
Image

Thanks for your help.
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Re: LG Flatron L226WTQ-BF white screen problem

Postby jackroche » Sat Sep 25, 2010 10:02 pm

I have the same monitor and that symptom started a couple of months ago. Now when the monitored is powered on all that appears is a white screen. A quick search on the Net brought me to the Corporate Computer website and a solution that made complete sense. I ordered the capacitor kit ($12) that was listed for the LG L226WTQ-BF but it turns out the capacitors listed and sent with the kit are not an exact match for the ones I removed from the board. after further inspection I see the picture of the power board as shown http://www.ccl-la.com/blog/index.php/lg ... or-repair/ is not an exact match for the one I removed from my monitor but the board shown in this post is identical to mine (as well as the symtoms).
The two smaller capacitors I removed are 680uf 25v (c202 and c206), two of the larger (longer) ones are 1000uf 16v along with a 1000uf 25v. Unfortunatly for me I did pay real close attention to which location the 1000uf 25v was removed from as I assumed the three larger capacitors were the same (c203, c204, c205).

The kit comes with: qty(3) 1000uf 25v capacitors, qty(2) 1000uf 16v capacitors. Is the a kit for the board identified in the picture posted here?

Regards,

Jack
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Re: LG Flatron L226WTQ-BF white screen problem

Postby trondyne » Tue Jul 12, 2011 12:14 am

Is there any confirmation on the fix for this problem?

Thanks,

Jim
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Re: LG Flatron L226WTQ-BF white screen problem

Postby CCL_Tech » Tue Jul 12, 2011 8:41 am

Hello,

The white screen issue is usually caused by a failure of the power supply board. The back lights are getting some power but the driver board is not. This model does have 2 versions of power board. Please post a picture of the power supply board in your unit and we will get you the correct information for that board.
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Re: LG Flatron L226WTQ-BF white screen problem

Postby david » Wed Nov 16, 2011 4:26 am

CCL_Tech wrote:Hello,

The white screen issue is usually caused by a failure of the power supply board. The back lights are getting some power but the driver board is not. This model does have 2 versions of power board. Please post a picture of the power supply board in your unit and we will get you the correct information for that board.



I'm having the same issue so here's a photo of my monitor's power board:

LG-L226WTQ-power-board.jpg
LG Flatron L226WTQ power board
LG-L226WTQ-power-board.jpg (77.46 KiB) Viewed 1735 times

Thanks,

David
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Re: LG Flatron L226WTQ-BF white screen problem

Postby david » Thu Dec 29, 2011 3:20 pm

bump
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Re: LG Flatron L226WTQ-BF white screen problem

Postby jaymax » Wed Feb 22, 2012 1:18 pm

Did ccl_tech ever replied to this as promised, I have the same problem.
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