Prima LC-32R25

Morning guys:

I just picked up a Prima LC-32R25 LCD TV (garage sale). The past owner
said
the unit had no picture or sound. After pluggin it in, I notice that
the back-light
comes on, but no video or sound.

I've disassembled the unit and have checked the SMPS and all of the
secondary
regulators on all the boards.They are all where they should be, with
little or no
ripple.The only control that works is the "power" button.

Anyone have a schematic, or insight on what to check now? I've been a
tech
for 25 years but this is my first look at an LCD display!

Thanks,

Tedd, ve3tjd
.