Re: LG W2442PA backlight blinks out for a few seconds
Today I noticed the upper left corner of the problem monitor (the one that now has the "good" power supply in it) is looking a bit bluish. It doesn't show in a photo, but my eyes notice it. I'm guessing this means I've got a lamp that is going bad and was probably the cause of my original problem?
Since I was placing an unrelated order at mouser, I ordered some new Panasonic caps for fun. I'll probably swap them as a precautionary measure the next time I have it open.
Any advice on the...
Freydnot
Member
Last Activity: 10-11-2014, 08:56 PM
Joined: 08-17-2014
Location: Washington
-
Re: LG W2442PA backlight blinks out for a few seconds
Well, two days of use and they are still both going strong. I notice the "problem" monitor that I swapped the "good" power supply board into seems brighter. I had to crank the brightness way down to get a good match with the other monitor.Leave a comment:
-
Re: LG W2442PA backlight blinks out for a few seconds
Well. I swapped the power supply board and now the problem seems to have gone away. Both monitors are working properly.
Maybe the wires inside were just lonely and needed some attention.
Now the waiting game to see if the problem comes back.Leave a comment:
-
Re: LG W2442PA backlight blinks out for a few seconds
Good idea. As soon as I get time I'll take the second one apart and swap power supply boards. That should tell me where the problem is (and I won't have to dig into the LCD assembly).Leave a comment:
-
Re: LG W2442PA backlight blinks out for a few seconds
I could do that. What would I be looking for in the CFLs? A crack or something?
It seems to me if one of the CFLs were going out, the display would only dim (since 1 of 4 lamps is out). In my case, it goes totally black.Leave a comment:
-
Re: LG W2442PA backlight blinks out for a few seconds
A few pics of the logic board......Leave a comment:
-
Re: LG W2442PA backlight blinks out for a few seconds
Various pics of the power supply board....Leave a comment:
-
LG W2442PA backlight blinks out for a few seconds
I have a LG Flatron W2442PA (actually I have two but only one is acting up) that has been in use for a few years. Recently the backlight cuts out and then comes back after a few seconds. A few weeks ago when it started, it did it every day or two. Now it is doing it every minute or so (randomly). Occasionally the picture will have a bunch of lines for a split second but that isn't very often.
This unit has two boards; a power supply board and a logic board.
I'm guessing since the backlight wires connect to the power supply board, that's where the problem is.
...Last edited by Freydnot; 08-18-2014, 01:15 AM. -
Re: New Members - please post your introductions here
Hi everyone. I'm trying to get a LG W2442PA to stop blinking off randomly. Just making a post so I can unlock posting a new topic. Wish me luck...Leave a comment:
No activity results to display
Leave a comment: