After being on for several hours sound disappears . Turn off for five minutes sound returns for five minutes before going again

1) set time: hold down "time set" button for five seconds, then use up and down arrows to change, and press "time set" button once to toggle between month/day/year/hour/minute. If it goes to the alarm setting instead of time setting, try again.
2) set alarm: hold down "alarm set" button for 5 seconds, use up and down arrows to change, press "alarm set" button once to toggle between hour/minute. press "time set" button to return to clock
3) turn on/off alarm: press "alarm set" button once, press "up" to turn alarm on and press "up" again to turn alarm off. press "time set" button to return to clock
4) to project the images: push the buttons that read "time" or "image". to focus the image, rotate the cylinder around the lens that projects the image. use the dial near the lens-cylinders to select a different image
5) military time: press the "up" button when the time is displayed (not when you're setting the time)
Good Luck!

Cooling fan might be the problem. Anyhow, the TV needs servicing.

Please take the car for a scan as this could result to a more severe problem.

It is a malfunction report.

You might try removing the battery connectors for five minutes and replacing back.

If the codes do not disappear, please you might have to get a scanner to do that.

Cheers.

http://en.allexperts.com/q/TV-VCR-Stereo-1749/2009/9/SP50L2HX.htm

Hi,
Symptom shows its weak Lamp problem in TV and you need to replace lamp. Replacement procedure is easy and written in instruction manual of TV.

Always buy Sony Original Lamp from Sony Accessories for longer life of TV.

this would be the pre amp. transistor , audio second pre amp volume control chip or audio amplifier , they will need to be tested to determine which one or ones should be replaced

I'm not sure which stopwatch you have, but if it's a 3 button one with Split on the left, Mode in the middle and Start/Stop on the right, try pressing the left and right button at the same time. Hopefully, this will turn it off. The little 'sound waves' should disappear. Good luck.

Dave.
Jer. 29:11

All symptoms in your TV shows that you need to replace its Lamp as it has been consumed its life hours and TV requires new lamp. Lamp can be obtained from Sony Website. Price is $200, Hope this info will help you to enjoy your Sony TV in coming days.

hi there, yes it can be fixed, hitting the unit means that you have a cold solder on the board. the sound is in the amplifier section, check some connection at the speakers and amplifier, a cleanning and a reheat of cold solder to the baord is required. ty

There could be bad solder connections on C809 and C810. There was a technical bulliten on this problem a while back agao. good luck