Need power supply board for H21 LCD monitor

Can you tell me where I can find a company that sells the power supply circuit board for a H21 LCD Monitor. Model VT21F79.
The board has several numbers on it.
Ver 0.06
VH31400 12.17 2004

I am hoping this is the problem. There is no power to the board, no light comes on for the power. I am using a known working outlet, power cord and video cable.

Thank you so much for your time.

H-21 scan port Dark Screen, If you unplug the green light flashes 2 or 3 times ending any activity until completely unpluged and plugged in again. My other scan port works fine using 1st monitor cables. I've used both ports on the graphics card. It's definately the monitor power supply or other componant.

Any ideas?