Question about Sony KDF46E2000 46" Projection HDTV

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KDF46E2000 shuts off - 3 red flashes

Hi Ron....You posted a solution to my problem earlier but if the switches seem to be working (according to the techs), could there be something else on the circuit that could be causing it to shut down intermittently. It's been doing this for about a month now but for a stretch last week it worked the whole week until the tech came and opened up the tv to check the switches and right after he left it shut down on me within a half hour and now I can only get it to stay on for about five minutes at a time. I have to unlock and lock the lamp door to get it to come on again. The tech is calling me tomorrow to find out how it was over the weekend but he said he'd order the two boards that the switches (lamp/lamp cover) are connected to if it was still acting up. Hopefully that's where the problem lies. Any other suggestions? Thanks,

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  • gdjfg Nov 12, 2008

    Hi Ron...I am forwarding your two comments on to them tomorrow to see what they think. I had the optical block replaced due to fuzziness on the left side of the screen and this problem has stemmed from the replacement. I did not have this problem before I had the work done. The tech doesn't think it's a warped cover because Sony seemed to have fixed the heat problem on their later models like mine. I did look at the cover and the tabs appear to be in good condition with no warpage in the cover. He wants to order the boards and go from there. I will let you know what comes out of this. The service provider is Northern Electronics. Thanks again.

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My first question is did you have this problem before your set was repaired the first time or did it occur after a tech took it apart?

The switch could be flakey evidenced by it working after the door is removed and reinstalled, but I would think you would have seen that symptom before the TV was repaired. BTW- what problem did you call them out for service on?

The door switches are very delicate and Sony warns techs in their training videos to watch for this when they do an optical block swap.

If I was repairing the set, I would meter the switch for voltage at the time it fails and if I saw voltage the switch is defective or the position of the switch board or optics is changing. If no voltage was measured at the time the set shuts off and the red light still blinks 3 times, then the board the switch goes to could be bad.

Who is your servicer if you don't mind me asking?

Posted on Nov 11, 2008

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The root of my problems was the T1 mount. Replaced that and my problem seems to be fixed. Make any sense? Thanks for your advice though...

Posted on Dec 06, 2008

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