Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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Power supply block/lamp issues

I bought a Sony KDF-42WE655 in November 2004. Recently it started to have problems. First, I changed the lamp in July 2007. I had bought 2 spare lamps in early 2006 after I learned that there is a limited lifetime for these parts. Then the blue dot problem started in October which Sony took care of 100% in December 2007. About 3-4 weeks later, the tv stopped turning on. The power/standby indicator was blinking 5 consecutive times. After doing some online research, I learned that the problem was most likely with the lamp power supply block (part 146879816) and perhaps a lamp replacement was also necessary. Since I already had 1 more spare lamp, I ordered just the power supply block. Last night, I took the old power supply out and replaced it with the new one. The tv still didn't turn on, but the diagnostic lights changed. It was the lamp indicator that started to blink. So thinking that my spare lamp would come in handy, I changed the bulb too. But the tv still doesn't turn on. And the problem is still the lamp indicator.

I guess I'm at a loss here. Is it really the lamp that's broken or could there be something else going wrong here? Should I invest more money in this tv and buy another lamp (~$200) or just throw it away. Also, I don't know if there is a second hand market that buys used/broken tvs or used tv parts. Depending on the response I'll get from you experts, I might want to sell the power lamp supply since I didn't get even 1 days use out of it and spent about $140 on it.

Is there any recommendation you have for me? I appreciate your responses. Thanks.

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  • Burak Ozdaryal Feb 02, 2008

    Thanks for the response. Where is the air filter?

  • dumbfixer Feb 03, 2008

    I have the same problem. Where did you go to by the parts?

  • Burak Ozdaryal Feb 04, 2008

    I bought the power supply block from the address below:



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Try cleaning the air filter I have seen the same symptons as your describing, and cleaning the air filter corrected the problem.

Posted on Feb 02, 2008

  • Sonny Berry
    Sonny Berry Feb 02, 2008

    it should be on the side of the set. Some models have them inside but most are on the outside of the cabinet.



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2003-2004 Model Year Grand WEGA Televisions:

Models: KF-42WE610, KF-50WE610, KF-60WE610, KDF-70XBR950, KDF-60XBR950, KDF-42WE655, KDF-50WE655, KDF-55WF655, KDF-60WF655, KDF-55XS955, KDF-60XS955, KF-42WE620, and KF-50WE620.

As technology evolves, Sony continually looks to stand behind the reliability of its televisions. It has come to our attention that a very limited number of televisions manufactured between 2003-2005, after a period of time exhibit a stationary scribble / random line pattern on the screen. Click here to see photos of this symptom.

As part of our commitment to quality, Sony is announcing that for any owner of this model television who paid out-of pocket expenses on or before May 26, 2006 for an estimate or repair service to replace the optical block for this specific issue, Sony will reimburse the customer by mail for his/her parts and labor expenses. To receive reimbursement, please follow completely the directions and terms on the claim form for reimbursement; all claims must be postmarked by May 31, 2007.

In addition, for any customer who later experiences this issue on one of the affected models, Sony will cover the cost of the optical block repair at no charge through September 30, 2007. All other terms of the Sony limited warranty continue to apply.

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