Question about Sony KDF-50E2000 50" HDTV

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Kdf-50e2000: Shuts off by itself, lamp blinks 4

Kdf-50e2000: Shuts off by itself, lamp blinks 4 times, pause, repeats, etc. After a rest turns on normally, but does it again. The shorter the rest interval, the quicker it happens after turning on again. Overheating problem? If so, what are some of the causes?

I have taken the back cover off, blown it out, and verified the fan is running. Fan doesn't seem to be moving much air. Is there a filter somewhere?

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  • temp4jtjones Jun 20, 2009

    Thanks. Any idea where I can find what voltage it should be getting, before I break out the fluke?

  • temp4jtjones Jun 20, 2009

    Does anyone happen to know what voltage is supposed to go to the fan? (Or where I can find that info?)



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I just had this issue. I think this solution worked for me. (We'll see after watching for a few more hours.) The TV was intermittently cutting off and then turning back on every 90 seconds or so. It was as though the power was barely breaking contact every once in a while. Kind of frustrating considering that it is a $1000 TV.

The fix I used is in this thread at the URL below. There is a photo of the problem source. I do not think you need a new $160 lamp. The problem is a little "switch" that makes contact between the lamp and the ballast (power regulator).

The "switch" is not so much of a switch as much as a thin piece of metal that makes contact with the lamp. See the photo in the discussion thread. I bent it out about a quarter of an inch and then reinstalled the lamp. So far so good.

I will post again if the problem crops up again.

Posted on Jul 07, 2009

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Four blinks is a fan error, I don't think that set has a filter but may have more than one fan. If the fan blades have a lot of dust on them that can cause slow rotation, can just be a bad fan or improper voltage going to the fan.

Posted on Jun 19, 2009


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