Question about Sony Grand WEGA KF50WE610 50" Rear Projection HDTV-Ready Television

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My sony kds50a2000 failed lastnight. Bulb only?

My sony kds50a2000 failed lastnight. I turned the set on and the green power light blinked for a while. I then unplugged the power, waited a few minutes and powered it back on. Eventually the red lamp indicator light blinked. After removing the bulb I noticed a conductor attached to the filament is broken. The set has 6-8k hours on it. I ordered a replacement bulb but am wondering if there may be anyhting else that could cause the bulb to blow out this way. I definitly heard arching when the set is powered on. Obvously its because the bulbs circuit is not complete but could somethign else have caused the bulb to blow? Is it normal for a bulb well withing its life expectancy to blow ot this way?

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There could be something else that caused the lamp to fail but if it has 6 to 8 thousand hours on it that is the expected life and it is not uncommon for a lamp to fail this way.

Posted on Mar 17, 2009

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I have a sony kds50a2000 and it wont turn on at all. When i do try to turn on the green light blinks many times then its followed by the red lamp light blinking continuously and wont stop blinking unless i...


You should Google the model number with "problems" as there are several sites with good information on this set.

I would suspect this model does not have a color wheel but if it does it would be suspect number one.

Sets that use a wheel that turns at 12,000 rpm will fail. I would (if I was working on the set ) take rear cover off and try to localize where the sound is coming from) Likely: the ballast that powers the lamp will buzz sometimes when bad or lamp is bad.

Remove lamp and inspect to see it is not shattered.

A fan (one on the lamp) could cause this but rarely.

Look, listen, and do some research with Google.

last resort Call Sony with model number (expect them to tell you take it to shop--usual response)

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The blinking green light signals that the inverter board is charging the bulb. If the blinking goes to red it means that this process has failed because either the inverter board is not full operational or the bulb itself has failed.
Most likely you will have to replace the bulb - here it is
http://www.partstore.com/Part/Sony/Sony/KDSR60XBR1/Royal+Philips+Electronics/Philips+Lighting/F93087600RL/New.aspx
If this doesn't fix it then you will have to check the inverter and power boards and replace the failing one.
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http://www.partstore.com/Part/Sony/Sony/KDSR60XBR1/Sony/Sony/146893613/New.aspx
Here is the power board
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1 Answer

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You tv used lamp XL-2400 or also known as F93087500. It is very common for this bulb to fail and have the exact symptom you are experiencing. I cant count how many times I have seen it.. Replace the lamp with either the exact Sony or an OEM and you will be back in business..
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I tried this solution last night. had a similar issue. opened up the back panel and cleaned the fan. just for the fun of it, i tried to turn the tv on and presto. it works fine now and i probably saved a bundle. thanks!!!

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1 Answer

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