20 Most Recent ViewSonic VA712B 17" Flat Panel LCD Monitor Questions & Answers


Did you physically drop your unit? What is wrong with the display? Please clarify and maybe I can answer your question.

ViewSonic VA712B... • Answered on Aug 31, 2014


cold solder on micro panel fixed mytv

ViewSonic VA712B... • Answered on May 01, 2012


Look for bad caps in the power supply first:
http://s807.photobucket.com/albums/yy352/budm/VIEWSONIC/

Very common in ALL monitors as you cand see.

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 monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/ 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 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.

ViewSonic VA712B... • Answered on Jun 01, 2011


You can download user manual for your monitor here:
http://tom.viewsonic.com/pdf/userguides/va712b-2_ug_eng.pdf

You should try this monitor with another PC to find out if it is your PC problem or your monitor problem.

ViewSonic VA712B... • Answered on May 20, 2011


You are not geting the image may be due to bad backlights inverter circuits, check the fuse in the inverter circuits.
Are you hearing the noise from the AC adapter or from inside the monitor?

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 VA712B... • Answered on Jan 10, 2011


It does the same on another PC?
More likely to be caps failure in the power supply section just like the VA912 (19" version) and the rest of Viewsonic as hswon in my albums.

If you are going to DIY and already try the monitor with another PC, 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 SAMSUNG monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/ 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 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 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.

ViewSonic VA712B... • Answered on Dec 24, 2010


I dont know the answer but i also got the same problem.. When i start my pc suddenly one flash will come in monitor and go. then i've to reboot my pc through switching off power and then on(Cause nothing in monitor i cant see anything for turn off or restart) then may be on 2nd or third reboot screen will come..

ViewSonic VA712B... • Answered on Dec 23, 2010


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.

ViewSonic VA712B... • Answered on Oct 24, 2010


More likely to be caps problem in the power supply just like failed VIEWSONIC as shown here:

Basic LCD monitor troubleshooting guide:

http://www.fixya.com/support/r6147800-basic_guide_applied_most_lcd_monitors

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

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

Please post back what you find.

ViewSonic VA712B... • Answered on Sep 25, 2010


The monitor have a power supply problem, take it to a approved technician for check.

ViewSonic VA712B... • Answered on Jul 28, 2010


Only resetting to factory default not resetting he EPROM. What is the problem with the monitor?
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

ViewSonic VA712B... • Answered on Jun 21, 2010


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, poor solder jopints, 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.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

ViewSonic VA712B... • Answered on Jun 07, 2010


wmtc348, If monitor screen is black, then most likely the problem is internal to the unit's "switchmode-power-supply/ cold-cahtode-fluorescent-lamp inverter power supply. You didn't state the "date of manufacture" from the rear of unit which is very important to give good better diagnosis. Do some reading in my (louie12fix) and (12fixlouie) Fixya profile and those of "budmrtn" and "buddymc" for more info on doing possible DIY or contracting out the repair work if unit is less than 4 years old. See if Viewsonic has a cash+old unit "swappout" program for your model. Also view some of the many DIY lcd monitor video clips that you will find on YOUTUBE to help you make "fix or trade for new" decision! DIY is $10 to $60 Contract repair is $40 to $90 depending on age and total hours of use unit has on it! Do some reading and view some videos first, before you do anything else!!! 12fixlouie

ViewSonic VA712B... • Answered on May 25, 2010


Did you check the Volume control panel of the PC to see if it is set to low setting. Try feeding the monitor with MP3 player or sound source to see if you get the sound OK. Post back what you ifnd.
http://s807.photobucket.com/home/budm/allalbums

ViewSonic VA712B... • Answered on May 22, 2010

Not finding what you are looking for?
ViewSonic VA712B 17" Flat Panel LCD Monitor Logo

49 questions posted

Ask a Question

Usually answered in minutes!

Top ViewSonic Computers & Internet Experts

Cindy Wells

Level 3 Expert

6255 Answers

Michael Thomas
Michael Thomas

Level 3 Expert

3056 Answers

efs_perpends
efs_perpends

Level 3 Expert

1997 Answers

Are you a ViewSonic Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

ViewSonic Computers & Internet

  • ViewSonic Computers & Internet

Most Popular Question

monitor keeps going black

  • Computers & Internet
Loading...