Murphys Law
Why is it – do you think, that the last thing you want to go wrong at any time frequently does? I don’t know either, but thats exactly what happened when I was in the middle of a massive web devlopment project recently when one of my monitors just died.
Symptoms were straight forward. Power light on, no back light and nothing visible on the screen.
Those of you who know me well, will being saying ‘So What?’ right about now. As I have a bit of a monitor fetish, and can’t get enough of screen real-estate generally, so I had at least a couple of monitors on my PC that were working anyway.
The issue though was that once you’re used to a workflow with three monitors, going back to two is like reverting to windows 98 for the day – it’ll do the job, but it slows you down.
Anyway – long story short, after whipping the case of of the monitor and having a poke about I spotted four capacitors that had gone bad (you can tell by the domed tops). A quick dig through my stores and I had some replacements and swapped them out. Job done.
Guest Submitted Photos
Big thanks to Bill Carins for the following additional photos he took when repairing his W2442PA Monitor
I have one of these as well that I need to fix. I wasn’t able to find a service manual online. How does this thing open? I assume it open at the seam where the screen’s front and back meet. Is there some sort of release, or a specific point to pry at?
It pops open at the seams. I was a little brutal and stabbed a flat head screwdriver in and twisted – working my way all round the case. You can buy a set of plastic pry tools for this which wouldn’t leave a mark. Good luck!
Thanks Martin, I’ll give ‘er a go!
https://www.manualslib.com/manual/783774/Lg-Flatron-W2442pa.html
Good afternoon, Martin
A couple of years ago, I repaired my Panasonic monitor with this problem. I bought a kit from Corporate Computer and things went well. Now, my LG W2442PA has gone MIA and it looks like the same problem you described. However, no one seems to be selling kits for the 2442 and I don’t have a schematic for the power supply. Would it be possible for you to tell me the specs and the C-numbers on the capacitors you replaced so I can go and buy them somewhere? I know I could take the thing apart and read them but I have no room for a couple of days of dis-assembled monitor in my apt. If you have that info it would help greatly. Please don’t go to any trouble – if you have the numbers, great, but if you don’t, that’s okay, too. Many thanks, Bill
Hi Bill,
I think there were four capacitors that I replaced in total. I’ve dug through my spares box as a memory aide and I’m pretty sure it was a pair of 470pf/35V and a pair of 1000pf/16v Radial electrolytic capacitors (although looking at my photos, it might have been 4 x 470pf and 1 x 1000pf). I got high temp versions of both (105°C) since heat was evident on the PCB.
Hope that helps (and I’m right), Good Luck!
Martin
Hi, Martin
I finally took the monitor apart and eyeballed the caps. (Luckily no one but me will ever know the damage done to the bezel when it’s taken apart without the proper tools.) There are three 1000uF @ 16V and two 470uF @ 35V. All of these were bulged. There’s another one off to the side which looked good, so I didn’t worry about it. I procured replacements locally and installed them yesterday and we’re back in business. I appreciate your taking the trouble to look for that info I asked you for. I can send you pics of the board if you think that would be useful to you or others.
Thanks, again.
Bill
Awesome work Bill!
Glad it all came right, Do send me any photos you have and I’ll add them here. I expect others would find them useful.
Kindest,
Martin
Although not the same model – Andrews similar repair video of another LG Flatron is really helpful and shows how to get the case off. https://www.youtube.com/watch?v=s3Y9ZH26Hw0
Hi guys!
thanks for this repair tutorial. I found the manual here:
http://www.manualslib.com/manual/783774/Lg-Flatron-W2442pa.html#manual
You can see how to disassemble and also all schemes are inside. Hope it will be helpfull.
BR
Marek
Hey thanks Marek!
Page 9 shows the right way to pull the bezel off by pulling the housing up from the screen side without tools (so no damage).
Really useful,
Martin
Hello,
it completly helped for – LG W2442PE-BF !!
thank you very much for your blog
Matt