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I have a VA712b monitor. Outta the blue,little green light showing power on, display stayed dark (black). It wouldn't come on. Shut off main power to computer and retried, several times. It came on and looked/worked fine. Next day, same thing. Tried pulling cord out of monitor power supply. Same deal. Many times, finally came on. I'm using it now. Could it be the power supply? Monitor DOES work, when you finally get it to light on. Anyone?

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More likely you have dying power supply due to bad caps as hsown in all the failed VIEWSONIC MONITORS albums. It is almost the same as the bigger 19" version VA912.

http://s807.photobucket.com/albums/yy352/budm/

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 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.

Posted on Apr 10, 2011

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