Question about LG Computer Monitors
My one year old LG L1900E 19" LCD monitor, after 10 months of perfect working, started to flicker after a cold start.
It flickers all the screen as a stroboscopic light for a couple of minutes after I switch it on, or after coming out of sleep mode. I said "cold" start because this only happens when the monitor has been sleeping or switched off for a while (I didn't measure this "while").
After stop flickering, it works fine. If then I switch it off and on, there's no problem, because it is "warm".
It's not a video card nor drivers problem, because it flickers with my desktop and laptop. Neither an interface problem, because it flickers using the VGA and the DVI conectors.
This is probably due to a bad solder joint somewhere. Bad solder joints can effect a unit in the reverse also. IE works at first and then dies after it gets warm. Think about how metal expands when it is heated. And contracts as it gets cold. If there is a hairline fracture on one or more component joints, this would cause it to not have such a great or solid connection when it is cool, or contracted. As it gets warmer, the solder expands therefore filling the void and giving it a good connection.
Regardless, it will likely only get worse over time. If you're handy with a soldering iron, pop it open and reflow all the joints. Especially the ones on the transformers and copper coils. Best to hit them all, excluding the tiny surface mount devices.
If you need further help or if you'd like to have this, or any other LCD monitor repaired for a flat rate fee of $40, please visit my web site http://BoiseLCD.webs.com, or email me at firstname.lastname@example.org.
BOISE LCD - LCD Monitor Repair
Posted on Jan 03, 2009
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