Ron Novini wrote:

Have a Zenith Model SY3288DT 32" TV that doesn't turn on.

I assume you have confirmed that the micro is getting +5v and that the
osc crystal is running? If the micro is getting power, then it's
probably a micro problem, not a power supply problem. In cases like
this I sometimes manually supply the turn on signal that should be
coming from the micro so I can see what's happening. I've also seen a
few TVs with a shorted, or leaky buttion that cuases it to ignore any
other button presses, including power.
--
Andy Cuffe