Question about LG W1934S-BN 19" Monitor

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Hello, I have a LG Flatron W1934S screen. When I switch on my computer the screen comes up blue light at switch but then turns yellow and with "digital power saving mode" screen goes blank. The PC stays on, but black monitor. If I press space bar or any other key nothing happens. If I keep restarting my computer a number of times eventually windows appears and can work. PC runs Windows 7

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Try it with another PC first just to be sure it is not video card problem.
More likely that it has dying power supply due to bad caps with leaking/bulging tops a shown in my pictures here:
http://s807.photobucket.com/albums/yy352/budm/LG%20W1934S/

You should replace them in a set.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Posted on Dec 30, 2010

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Posted on Jan 02, 2017

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1 Answer

My LG FLATRON W1934S was working fine last night. went to turn it on this morning and nothing happened. no orange or blue lights and it wasnt left in sleep mode either. what could be wrong with it?


I would suspect a problem in the monitor power supply, either a fuse or possible bad filter caps especially if you had to turn it on several times to get it on just before it failed.

If you are able to open it here is what bad caps look like:



12_17_2012_6_44_04_pm.jpg12_17_2012_6_44_31_pm.jpg12_17_2012_6_45_01_pm.jpg

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LG FLATRON W1934S


hi,

check first if the connector has no connector pins wha are broken or shifted. if not chack cable for hard nobs or turns maybe cable is interrupted.
take other schreen to check VGA output of PC.
if all this not helps mail me back
greetings cis


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