Screen looks normal for about one second on startup then goes black
SOURCE: AOC LM729 17" LCD Monitor Screen goes black
YOU HAVE A DRY SOLDER PROBLEM, You have to open the monitor and check the solders in the PC BOARD , mainly where theres A SMALL transformer resolder it , and try again ,that should fix it . hope it helps
SOURCE: aoc lm725 display off after few seconds
I've had a very similar issue on many Dell Monitors. Mine have been under warranty and they usually send me a new monitor, but I believe the issue lies with the power supply within the monitor.
SOURCE: AOC LM729 17" LCD Monitor
Well I just resoldered both coils, and it Worked!!! I was about to throw away the monitor, but luckily found this page!
Thank You!
SOURCE: Same problem--AOC monitor "goes to sleep" after an hour online
Hello,
It sounds like you have a monitor with a common problem. After a few years some LCD monitors
will blow a power supply. The problem is caused by parts called
capacitors overheating in the confined space of the monitor. If you are
good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work
fine. The capacitors do need to be installed with the correct + and -
connections, note the stripe on the old one and insert the new one the
same way. If you can't do the repair we offer a repair service, contact us for more details.
I hope this helps, if so please rate my solution.
Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair
Testimonial: "Buddymc gave a swift and detailed reply to my first inquiry, very much appreciated."
SOURCE: AOC LM725 LCD Monitor
try looking for bloated caps, check all diodes... see if its not shorted/leaking and finally check the power regulator ic if its not shorted! note: some capacitors and diodes are very tiny, you should use a lens with good amount of light...
if it does not help..... well, what the hell? try pouring some gas, then light it up! that should solve the problem, at least it turned on right? hehehehe!
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