I have RCA P61927 61 in. Rear Projection Television. the picture is fine but there is no audio and just a static sound.

Hi,

My friend had a similar problem & was able to fix it by unplugging the set for a minute then plugging it back in. The sound was restored. I would suggest Keep it unplugged for a night.
Only thing that might cause this can be the circuit board for coax input or the coax cable connection in the TV may be faulty. So if you add a 1uf cap 50volt to IC U13101 pin 15 and ground this will solve the problem.

You might try the "do this when all else fails" fix: Wack the TV on the side to see what happens..

Let me know more to guide you further ...

Fame !