Question about Computers & Internet
Viewsonic Optiquest Q91b 19'' LCD monitor goes blank. Power light goes off. I unplug 120VAC from monitor. I plug it back in and display is ok again. Sometimes I can get it back by just jiggling the plug at the monitor. I have tried a new 120VAC power cord and get the same negative results. The power cord plug is a female D connector.Will a defective internal power supply act this way or is it truly a connector mating problem?
It is the capacitor on the power to the monitor. I have replaced about 5 so for. The capacitor is like 69 cents. Open it up and look at the circuit board where the power plugs into and see if any capacitor are bubbled up. If so then its a bad capacitor.
Posted on Jul 10, 2009
My SunRay 2 keeps freezing
can someone help with one solution
Posted on Apr 07, 2011
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Posted on Jan 02, 2017
Tips for a great answer:
Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures: 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.
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