teac model t22dvdb19a hd ready tv power goes off?

Monitor the PSU output voltages from power-up to establish if a rail is going down. A series low value resistor should guide you as to whether it's the PSU or a load problem like a 'lytic on the main board.
My supply is awaiting parts and I don't have a schematic, so I can't be more specific.

If it turns out to be a hard-to-get component, this PSU is also used on the following models:
BUSH BTVD31217S2
ELECTROTEC 586/431
RED 586/341
RED 6972049 22IN
RED X32/29C-GB-TCD-UK
SENS S2201DVD

eBay may well have one of the above with a broken screen that you could get for peanuts. Also the Bush and SENS models *seem* to be identical, so could be a source of a main board if that's the problem.

If the worst comes to the worst, sell it (or just the screen) on eBay and recoup a good chunk of what you paid.

HTH

Dave Barron
January 2012