20 Most Recent ViewSonic VA720 17" LCD Flat Panel Monitor Questions & Answers


Good Day Tricia,

I had to pull up you owner's manual to get the spec's on your cord, so if you need the manual follow this link:

http://h10032.www1.hp.com/ctg/Manual/bph08231.pdf

Anyway after reading the spec's you need an AC-DC power supply that outputs 12volts at 3.3amps. What makes this difficult to find is the 3.3amps, most aftermarket power supply only go up to 2amps. So what's next? Well you can order directly through HP at this link:

http://partsurfer.hp.com/cgi-bin/spi/main?sel_flg=partlist&model=P4824A&HP_model=&modname=HP+vf51+15-inch+LCD+flat+panel+display&template=main&plist_sval=Power+Cord&plist_styp=subcat&dealer_id=&callingsite=&strsrch=&keysel=Power+Cord&catsel=%3F
If you do this make sure get part 8121-0740 if you live in the states, or part 8121-0731 if you live in europe.

The only other suggestion I can give is to bring the monitor into a radioshack and see if they have a 12VDC 3.3AMP (you can get a universal with higher amperage if needed, the monitor will only draw the 3.3 it needs even if it is supplied more) and the reason I say bring it in is so they can match the size of the plug that goes into the monitor, as there are about 20 diffrent diameters's. Again the problem you may have is finding one with a high enouge amperage.

I hope this helps

Good Luck

ViewSonic VA720... | Answered on Apr 21, 2019


it looks like the Inverter's gone in your screen, it works like a starter in a florescent tube, it 'kick starts' your screen to come on. Turning it on/off many times eventually 'kick starts' your screen and makes it come on eventually.

ViewSonic VA720... | Answered on Jan 15, 2018


Call ViewSonic technical support for assistance.

ViewSonic VA720... | Answered on Feb 08, 2015


Check to make sure that closing the panel down does not cause the laptop to go into standby or suspend mode. In other words, are you sure that the video signals are not halted by the action of closing the panel down?

ViewSonic VA720... | Answered on Feb 08, 2015


The wire may be shot. Try purchasing a new connector wire.

ViewSonic VA720... | Answered on Dec 08, 2013


you could try mean green or totally awesome gotta love dollar tree. but be careful if you press too hard you could crack the screen or cause a pooling effect that may or may not go away. Oh or rubbing alc. last resort use liquid lighter fluid on a cloth.

ViewSonic VA720... | Answered on May 19, 2013


You say black display. Not sure what you mean. Either the monitor is working or it is not. If you see nothing on the monitor and the power light is yellow, then it is not getting a signal.
If the power light is green and you see nothing, look really closely. You might even shine a flashlight at the monitor to see if there is actually a dim display. If so, the backlight has gone out and needs to be replaced.
I'm assuming that you have tried to brighten the display with the monitor controls.

ViewSonic VA720... | Answered on Jan 15, 2012


It is built the same way as the 17" version:
See pictures here: http://s807.photobucket.com/albums/yy352/budm/VIEWSONIC/Viewsonic%20VE710B/

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 VA720... | Answered on Jul 16, 2011


More likely to have dying power supply due to bad DC filter caps as shown here: http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20VA721/
Mkae sure to replace them in a set with good caps iwth low ESR type and 105c rating.

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 VA720... | Answered on Mar 22, 2011


Only $7 at AMAZON .

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 VA720... | Answered on Mar 08, 2011


If it says DC input and there are no other socket which has three prongs(this is for the AC input), all you need is an adapter, which you will plug to a wall socket and the other end would be plugged to the flat panel, it works like a transformer, just like any power supply, like for laptops, just try to find the correct voltage, 12v,16v or whatever is needed by the panel. Often you can find the voltage require on the panel itself, reading as POWER INPUT, xx volts or Power requirement.
Thank you for using Fixya.com

ViewSonic VA720... | Answered on Oct 27, 2010


Your PC video resoliton is set too high for the monitor to display, it shoulde be set to the native resoltion of this monitor: 1280 x 1024 @60Hz.
http://www.fixya.com/support/r4873371-fixing_out_range_format_not_supported

http://www.viewsonic.com.au/product_pdfs/lcd/17/E-VA720-10142003.pdf


Unless the monitor has the problem inside:
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20VA721/

ViewSonic VA720... | Answered on Oct 10, 2010


Best is to approach the Viewsonic dealer and get the recommended adapter than to get one which is universal or matching.

ViewSonic VA720... | Answered on Sep 26, 2010


Look for bad DC filter caps first as hsown here:
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20VA721/

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 VA720... | Answered on Aug 31, 2010


Failed caps just like all the Viesonic as shown in my albums here:<br /> <a href="http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20VA721/">http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20VA721/</a><br /> <br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"><a href="http://s807.photobucket.com/home/budm/allalbums">http://s807.photobucket.com/home/budm/allalbums</a></span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"><a href="http://en.wikipedia.org/wiki/Capacitor_plague">http://en.wikipedia.org/wiki/Capacitor_plague</a></span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Capacitors kit: <a href="http://lcdalternatives.auctivacommerce.com/Viewsonic-C196320.aspx"><span style="mso-spacerun: yes"> </span>http://lcdalternatives.auctivacommerce.com/</a><span style="mso-spacerun: yes"> </span>he can make you a set of caps for you.</span><br />

ViewSonic VA720... | Answered on Aug 25, 2010


Please check all the pins at both ends of the VGA cable, also try it on another PC.
http://s807.photobucket.com/home/budm/allalbums

ViewSonic VA720... | Answered on Aug 21, 2010

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