LG Flatron W2242P-BF Monitor Whitescreen.

[redrooster]

My LG monitor has been recapped about 2 or 3 years ago with ordinary caps (not low ESR) But they seem OK from what I can gather measuring them in circuit? I have been getting horizontal colors at startup (Rarely) and sometimes flickering black and white vertical stripes about 4 to 5 inches across at startup. This time though after installing AMD Catalyst drivers the day before it started up and went to a whitescreen with no signal. I thought it was the AMD Catalyst drivers but I tried another monitor and it worked OK. Ive taken the LG apart but cant find anything wrong yet except for 2 transistors that dont measure up on the diode test,( KJE W9 ) Im assuming theyre transistors? The ribbon cable to the T-Con is OK. I cant find a service manual or schematic for this model. Any ideas/suggestions appreciated. Sorry about there being no photos, Ive lost the battery charger for my camera and have it on order.

[redrooster]

Re: LG Flatron W2242P-BF Monitor Whitescreen.

Ive found those ""transistors"" on the T-Con board (KJE W9) were actually diodes so they are OK,I cant find anything obviously wrong with the T-Con board so Im starting to think its maybe the electrolytic caps I installed about 3 years ago because they werent low ESR types. Would bad electro caps cause T-Con type faults like flickering 5 inch wide black and white vertical stripes. Like a test pattern?

[redrooster]

Re: LG Flatron W2242P-BF Monitor Whitescreen.

Bump, Yoo Hoo! Anyone home? Ive cleaned the ribbon cable display plug on both ends with DeoXit. Now, without it being connected to the computer the monitor goes to white screen at start, then goes to black screen, it does this a few times then stays off? Will bad capacitors cause whitescreen?

[dskall]

Re: LG Flatron W2242P-BF Monitor Whitescreen.

You have voltages on t-con? Disconnect one ribbon cable at a time to panel and see if you get good half of screen

[Andrew F. Ali]

Re: LG Flatron W2242P-BF Monitor Whitescreen.

Are you sure you re-connected the ribbon cables you cleaned properly/correctly??