Would it be hard to find a replacement power supply for an LCD monitor?

The company, AST is out of business. A computer repair person told me I should be able to find a replacement power supply on ebay. He said center positive. I only have the info on the back of the monitor DC 12v, a diagram of three identicle circles connected by a line:

(-)-(o)-(+)

and the plug recepticle, a hollow cylinder with a pin inside.

Would it be hard to find a replacement power supply for an LCD monitor?liveupdate

If its a 12v power supply you need then i think Radio shack should have a suiteable replacement and they have power supplies with changeable polarity. Ebay has them but a lot of looking to find one .

Would it be hard to find a replacement power supply for an LCD monitor?nortin

i got one power supply for your lcd monitor, because i broke down my kcd monitor and it is not under warranty if you want i could sell it to for $50