Question about ViewSonic VA902b 19" Monitor

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When the display is turn on show for a few seconf the imagin after that back to blak display

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  • Kandi Cook Sep 27, 2010

    After the picture comes on the screen, does it say "no video" or "no video connection" before going black? Or does it just go black while going through the normal start up functions? Please clarify and I will help you solve this problem now.

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Look for bad caps.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed VIEWSONIC monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Posted on Sep 28, 2010

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Posted on Jan 02, 2017

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