Hi my kdf 55 inch grand wega will shut off after a while of being on. Picture and sound. When turned back on the red light flashes 5 times but comes back on . There is no popping sound, just goes off

sounds like your power supply is going out, depending on where you live it will cost 200$ - 400$

sounds like your lamp is getting weak, you need to replace it.

This usually means the Lamp is failing. Replacing the Lamp usually fixes it. I would only use a Sony Replacement.
You can order one from Sony at 1800-222-SONY or you may be able to pick one up from a local Sony Retailer.
Skyassoc

helloFive blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.

shaun

5 times Red LED blinks means Lamp Driver Error. (KDF-55WF655)
2 possible reasons, either Lamp is gone or Ballast Supply got bad.
Replace lamp first, in most cases it solved the problem.
How old is this TV and did you replaced lamp recently?
Thanks.

Green light flashes 5 and then red light flashes 6

My Sony Wega KDF-55XS955 55" was going on for 1-2 minutes then going black with no sound and after a few minutes would come back on. After reading all the posts and talking with a repair guy I replaced the bulb and that fixed the problem.

souns like an over heating isue
try cleaning out the unit
take it to the local mechanic have him give your tv a ******* (with compressed air )
heck hes been screwing you so his kids can go to coledge for years whynot get a freebe?

maybe you should change the light bulb

Try cleaning your air filter sounds like its a thermal problem, often its due to an obstruction in the air filter.