Lately we're seeing lots of Sony model KD60X690E with an intermittent 6 blink code.
They seem to act out more when it's cold.
This is a common problem that can be repaired.
"I dropped off my 46" RCA LCD TV with no sound. Had a call back in 30 minutes saying TV was ready at no charge! My kids must have turned off the speakers in the menu. Could not be happier with their honesty. Yes!"