If you have a LG L226WTQ-BF monitor that either has a blinking power light, very dark picture or no power then this should help get you back running. The power board is A1P-0156 and is also used in the LG L206WTQ, L222WTQ and the L225WT monitors. Below you will find a full walk through on repairing your LCD monitor. To do the repair you will need the following tools: Soldering iron, de-solder braid, Phillips screwdriver, flat blade screwdriver. You will also need the following electronic parts: qty(3) 1000uf 25v capacitors, qty(2) 1000uf 16v capacitors. We sell a repair kit with all of the parts for $12.00

If you don’t want to do the repair yourself, use the service request link above. Most monitor repairs run $30-35 plus return shipping.

Here we have a non functional LG L226WTQ-BF flat panel monitor that has a flashing power button light and no picture.

First you need to remove the power cable, signal cable and the stand. Next remove the screws holding the back of the case on.

Now after the screws are removed you will need to use the flat blade screwdriver to separate the 2 case halves. Insert the screwdriver between the plastic case halves and gently pry the 2 apart. The case has plastic latches around the outside that will release as you pry.Remove the LCD panel from the case and set them to the side.

You will need to remove the metal shield from the backlight plugs as shown in the picture.

Next you will need to unplug the 4 backlight power plugs as seen circled in yellow to the right. When re-assembling the monitor you can plug the plugs back into any the the sockets, there is not any polarity or voltage differences.

Gently lift up the metal shield as shown to the right. The board we need to get to is the one on the left.

Remove the 4 screws as circled below and remove the board from the shield. The 5 capacitors that need to be replaced are circled in the picture.

The part numbers on the board are as follows: C300, C203 and C206 are 1000uf 25volt and C208 and C209 are 1000uf 16volt. Be sure to install the new ones with the polarity stripe on the side going the same direction as the old ones come out.

After the parts are replaced just reverse the procedure to reassemble the case. Now apply power and you should have a fully functional monitor again.

4 Comments on LG L226WTQ-BF Monitor Repair

Fixing power problems with your LG Flatron Monitor (LG1753S) | Just Another Dang Blog on Mon, 19th Jul 2010 1:44 am


[...] I found out it’s easy to fix. Thanks to this website for the amazing archive of fixing LCDs. http://www.ccl-la.com/blog/index.php/lg-l226wtq-bf-monitor-repair/. Just several capacitors failing me, being the jack of all trade that I am I decided I’ll fix [...]

Felipe on Sun, 20th Feb 2011 9:42 pm


I have to give this guide a VERY HUGE THANKS! It solved my problem on my LG L226WTQ-BFQ monitor. After a week of blank screens when turning it on, the monitor just stopped working (the power LED wouldn’t lit up). There was a barely audible noise coming from within the monitor, probably the sound a damaged capacitor makes. Upon disassembling, the power board had a different layout than the one on this guide. There was only 1 1000uF 25V capacitor, not 3 as displayed here, and there were 2 1000uF 16V capacitors. I replaced the 3 capacitors and may monitor came back to life when i plugged it in. This is the best budget repair! Thank you Corporate Computer for saving us from having to buy a new monitor.

Benjamin Ehlers on Sat, 19th Nov 2011 7:39 pm


I have a LG L226WTX monitor, and it was suffering from the same kind of problem. After it finally died, I took it apart figuring I wasn’t out anything, and found the same bulging caps pictured above.

I took the board to a local guy, and had him swap out the caps, and when I put everything back together it worked like a champ.

thanks for the good write up!

CCL_TECH on Sun, 20th Nov 2011 9:16 am


Great!

The only thing is to be sure the parts are low ESR and high temp or the will fail very quick and could damage the power supply board when they fail.

Tell me what you're thinking...

Name (required)

Email Address (required)

Website

Speak your mind

Notify me of follow-up comments by email.

Notify me of new posts by email.