I am looking for the part number of a power adapter for a viewsonic vg710s monitor

First I would make sure the video out on your PC is working correctly. The best way to do this is by hooking your PC up to a different monitor to see if the second monitor operates correctly. If it does not then possibly you may have an issue with your video card. If you are interfacing to a laptop, make certain that you have the video out configured to output to an external monitor. This can be achieved through your computers control panel.
I also had a similar issue with one of my ViewSonic monitors and resolved it by completely unplugging the monitor from my PC and also for the electrical outlet. I let it sit for 5 or 10 minutes, hooked everything back up, restarted the computer and it corrected itself.
Hope this helps
Codebynite

The power cord can be found at, a computer store, tv repair shop, or Radio Shack

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

>> 715L1075-1-V1 PC MONITOR - POWER SUPPLY FOR VIEWSONIC N/A TV

Once you have the _correct_ part-number, you can buy it online:

http://www.discount-merchant.com/We-provide-factory-original-parts-worldwide-p/1049626-viewsonic.htm

Replacement Part Number: 1267-0526
Specs:

• 40 Watt, 12 Volt AC Adapter
• 4.8 mm Barrel Connector with Positive inside
• Condition: New
• Warranty: 12 Months
• 100% OEM compatible, Guaranteed to meet or exceed OEM specifications

Compatible Models:

• Hewlett Packard Jornada 680 Series
• Hewlett Packard Jornada 720 Series
• Hewlett Packard Jornada 728 Series
• HP Jornada 680 Series
• HP Jornada 720 Series
• HP Jornada 728 Series
• Planer LP150-BK
• Viewsonic VG150
• Viewsonic VG-150B Model
• Viewsonic VG151
• Viewsonic VP140
• Viewsonic VP150M

ACALCD12V5A1.8

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

I'm assuming turns black and blue then turns off? First make sure your connectors to your monitor and back of pc are secure. But it sounds like your video card needs to be reseated.

Are you still using the same computer that was set to 200Hz? If so, start Windoze in safe mode and reset the display properties to 1024 x 768 60Hz. Reboot the computer and everything should be OK.

Does this model use an external ac adapter or an internal power supply? Twice I have seen a white screen caused by bad capacitors in the power supply. They may look good, but you should replace them anyway. Look in the 2ndary circuit of the power supply, you should see some capacitors that are (for example) 220uF 16 to 25V, 470uF 16 to 25V, 1000 uF 16 to 25V (all those capacitors could be 16V or 25V). Replace them and try the monitor again.
If it uses an ac adapter, try a different 12V adapter. Make sure it has the same or higher amperage rating. If you can't find one, you will have to measure the power going onto the board inside the unit while the adapter is plugged in and the monitor turned on. If it is less than 12V you need a new adapter.
If none of this helps, the panel or main board may be damaged. In most cases these two parts cannot be repaired.

yes. it is a 5mm center hole

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.