We hava a viewsonic 1912w-4, model VSS10866 and

Look for bad caps with bulging top, worst case will be bad lamp assembly.
See my pictures here: http://s807.photobucket.com/albums/yy352/budm/VIEWSONIC/Viewsonic%20VX1962W/

Please read my guide 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
Parts: www.shopjimmy.com
Parts: http://interliquidparts.com/

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.

ben7295, Internal power supply failure. Watch some DIY repair videos at YOUTUBE. You may be lucky and find one just like your"s being repaired there. Then you will need to make big decision! Attempt a DIY repair or just trade in for new unit??? After doing your research, return here and rate this response if it helped you make correct decision.
12fixlouie
p.s. "white screen, black screen, = POWER SUPPLY PROBLEM

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

http://www.12vadapters.com/adapter/power-supply/12v/for-lcd-screens/sampo-p702m-p707m-p704m-2.html

http://cgi.ebay.com/AC-DC-power-adapter-supply-4-viewsonic-VP181-VP181B-LCD_W0QQitemZ120543491973QQcmdZViewItemQQimsxZ20100316?IMSfp=TL100316141006r17343

You need to find out if you the 12vdc is reaching the inverter circuits, if you can take good pictures then we can guide you further, there are fuses for the inverter circuits, This is where I post my pictures: http://s807.photobucket.com/home/budm/allalbums

We got the part in today and the hubby fixed the tv. It is as good as new. We are very happy with our $62 purchase.

Go to http://store.ramplus.com/fsfspopfrpos.html

FSP228-3F01, FSP Open Frame Power Supply Replacement for Viewsonic N3260W - 32" LCD TV

It worked like a charm and took about 10 minutes to put in new part and put tv back together.

I recognize the model number as a Viewsonic model.

Check the digital input using another computer to make sure it's the monitor.

If you're brave enough, do this:

Open the unit and check to see if any of the capacitors in the power supply or other boards look domed or vented on the top.

Replace any capacitors accordingly. Use the same value capacitors. Most often, 1000uF 16V or 25V, 470uF at 16 or 25V, 220uF at 16V or 25V.

Capacitors are used to remove ripple from the switching power supply. This ripple, or noise could cause digital circuits to act up. Usually it's easy to spot the bad ones. Good ones look like a perfect cylinder. If they look swollen on the top they are likely bad.

If you do this and it does not solve the problem, the main board could be going bad and require replacement, You should be able to order one from your local Viewsonic service shop. By the way, that model is fairly new. Remember that Viewsonic monitors carry a three year warranty.

i have the same model and same problem. i found a listing for a control board at the viewsonic online store. here is the link:
http://store.viewsonic.com/html/ibeCCtpItmDspRte.jsp?a=b&item=122065
i also called viewsonic parts at 1-888-881-8781, and they said they still make parts for this model.

Try visiting the part store the following link, make sure you have the correct serial number. http://www.PartStore.com
Also to buy universal remotes try visiting http://www.ilektroniks.com
Thanks