L32hd31yx16 tv has no sound or picture. it was working fine last night. The power light comes on then turns red.

A friend Maurice gave me a L32HD31YX16 with the same problem, no picture no sound, after four hours of research and trouble shooting, no schematics.

I had no +12 and no +24 volts on the power supply board. I did have the +5V.

The repair is an 85 cent fuse under the blue transformer, There is a 200mA fuse, green with a "C" on it, at location RB8 (1206 package).

I went to the shack bought a 250mA glass fuse and holder for 5 dollars just to get it done. So far the unit has run for an hour.
IRB

Tries the tv and cable box unplug,replug it back an hour later.Let the tv reset it self back to factory setting.The cable box upgrade it software.The tv should,work now.Not,than the tv power supply board have problems.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.