Re: LG Flatron W2243S-PF monitor shuts off after 3 seconds with high pitch noise

Took a while and I recently stumbled upon this repair again. Unfortunately I don't have the time currently, and besides that the screen is rather old, and relatively dangerous with the old ccfl backlighting. I am desoldering my new caps now and I'm going to hand in the screen to be scrap metal. If you want it you can take it. The screen itself is okay. I sometimes even get newer screens that take less of a hassle to get them fixed again Samsung SA300 series for example work again as new after only applying...

Re: LG Flatron W2243S-PF monitor shuts off after 3 seconds with high pitch noise

I think it must be something with the transformer, because I discovered that the initial issue it has is not that the display turns off, no only the backlight is turning off.

Is it likely that the big cap has degraded and not able to supply the voltage anymore? And I also forgot to replace the tiny cap you see just above the big heatsink.

I ordered a component tester so I can actually test caps instead of randomly replacing things. I'm a bit precautious because of the high...

Hello,

I finally decided to register here as I wanted to improve my knowledge of electronics repair.

Someone gave me a LG Flatron W2243S-PF monitor which turns off after a few seconds and while it is on it makes a high frequency noise.

I already opened the thing and replaced some of the caps, but unfortunately still the same issue. I tried something else, and plugged out the upper CCFL connectors (one with red color wire and one with blue color wire).

With those two disabled the high pitch noise was gone, however the thing still turns off after...

Re: New Members - please post your introductions here

Hi, I'm from The Netherlands and I'm getting more and more into electronics repair, and wanted to signup here to have some external thoughts on my monitor repair.