20 Most Recent ViewSonic VA903B Monitor Questions & Answers


Go to the viewsonic.com website to check for a driver. You may try another driver or the unsigned one. If that does not work, please contact ViewSonic technical support for assistance.

ViewSonic VA903B... • Answered on Feb 08, 2015


Sounds like the inverter circuit for the backlight is going bad,most likely culprit is bad capacitors located on the power supply module.Look for bulging tops on any of the caps or ones that look like they are going to explode.Change them with a cap of the same value,microfarads and voltage,you can order caps on the internet for pretty cheap,less than a dollar a piece,you will have at least 4 that will have to be changed under normal situations.if you cant solder or dont want to you will have to get it serviced b y someone qualified.Hope this helps,good Luck

ViewSonic VA903B... • Answered on Dec 18, 2014


Restore the factory settings.....

ViewSonic VA903B... • Answered on Jun 08, 2011


Please check your VGA cable, try to use an alternative port available. If all this does not work for you, replace the VGA cable. Thanks

ViewSonic VA903B... • Answered on Jun 08, 2011


One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they are probably old and faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error

hope this will help don

ViewSonic VA903B... • Answered on Feb 19, 2011


Yes, it is telling you that it is not getting the video signal from you PC. Try another monitor with this PC since the VA903 works fine with another PC. The video cable is seated properly?

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. Please leave rating if it helps.

ViewSonic VA903B... • Answered on Jan 17, 2011


Just to be sure I owuld try it with another PC first.
It can also be in the monitor due to bad caps as shown in my pictures here:
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20VA903B/

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. Please leave rating if it helps.

ViewSonic VA903B... • Answered on Jan 05, 2011


More likely to be bad capacitors (bulging/leaking) in the power supply/inverter board just like these Viewsonic here: http://s807.photobucket.com/home/budm/allalbums
Please post back what you find so we can guide you furher and will also help other poeple.

ViewSonic VA903B... • Answered on Apr 06, 2010


The "no signal" message is telling you there is no output from the computer. The output signal switches on the monitor, so if not there, check your cables and connections. If you have another monitor, try connecting it instead, and see if it works.This is an unusual problem, so keep trying. Connect the monitor to another computer, such as a laptop, and see if it works. If the monitor on another computer works, obviously it the first computer. If the first computer works with the second monitor, it's the first monitor.

ViewSonic VA903B... • Answered on Mar 31, 2010

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