What voltage do i need for my ViewSonic VA720

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.

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

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

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.

Higher current is OK and better than not having enough and it does not do any damage, voltage cannot be higher.
Just think of it like a AAA and AA batteries, both have the same voltage but AAA has less current capacity.
The power supply must be regulated 12vdc though, which will be switch power supply type and also observe the DC plug' polarity (center positive).
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague

There are more than one version of your monitor. Check and see.

http://insidecomputer.stores.yahoo.net/viewsonic-va720-60w-4pin-lcd-ac-power-supply-1599-1ye72060415991.html

http://www.lcdpayless.com/productpage.php?productId=4664

you need 12V, 4A.. below link may help..

http://cgi.ebay.com.my/ws/eBayISAPI.dll?ViewItem&item=250056242010

cheers!

i hope this is what your looking for , go to this link:

http://insidecomputer.stores.yahoo.net/viewsonic-va720-60w-4pin-lcd-ac-power-supply-1599-1ye72060415991.html

his step-by-step guide describers how to obtain and install ViewSonic VA720 drivers for Mac.
1. Define your ViewSonic Monitor device model.

2. Define your operating system to install your ViewSonic Monitor device. Note: Update Drivers in Mac

3. Browse Monitor Drivers.

4. Find ViewSonic Monitor Drivers.

5. Select ViewSonic VA720.

6. Download ViewSonic VA720. Note: you can update all Drivers automatically with RadarSync (Freeware) or Driver Detective (Shareware).

7. Install ViewSonic VA720.

8. Restart or reboot your computer to finish your driver installation. Note: you can backup your computer drivers before updating.

Hi, You would need an adapter that puts out 12 Volt DC, Output Current: 3.3 Amp and the Center Positive Power Tip (Output Power: 40W). The original ViewSonic adapter is M/N: UP06031120A Hope this be of some help/idea/ Post back how things turn up or should you need further information. Good luck and kind regards.