Sony tv keeps shutting itself off

On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.

Eight blinks points to an audio output problem. The unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.

Hope that helps.

The Blue CRT has shorted and shutting the set down. You can verify this by simply sliding the Blue CRT drive board off the neck without unplugging any of its wires, Just let it hang suspended and then try powering up the set. If the set stays on you will know the Blue CRT needs replacement.

Not Lamp, it is problem of convergence output ICs failure. KP-51WS500 is rear projection tv that has 3 color tubes to make picture, this tv does not have Lamp as light source in DLP tv.
Replace convergence output ICs to fix the issue. Local tv repair shop will help you if you have no experience in electronics stuff fix.
Thanks.

You can get a replacement D board from www.tvrepairworld.com and they will assist you in getting the correct board for your model.

The green picture tube has an internal short. Happened a lot with that model. The tubes are no longer availible. But a reputable company called Video Display will rebuild the tube completely. But the tube must be pulled and shipped to them. Most repair shops would charge around $400 to $500 for the complete job.

If the screen looks like the one in the link I posted, then you might want to try fixing it with what is suggested on the site. Keep in mind that this is a band aid fix which compensates for weakening components, however it "should" buy you some time. Don't do these adjustments if this is not the same problem you are having. If the TV shuts itself down, check to see if the blinking code is the same as the one in the web site.

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

Hope this helps.

There is only a few reasons for this problem and it is a bad video IC on RED CRT board or Defective RED TUBE disconnect CRT board at end of neck on red tube Look at IC on That board while disconnected from tube turn TV on if it keeps playing without shutting off Tube is defective.

youre losing your signal and it sends the tv into stanby mode and cauuuses the power supply to shut down

Sony
Model # KP-53HS10
Serial # 9718217
MFG 2000

Plugged in TV. Timer Standby Light just flashes continusly. No Picture and No Sound.