Question about Sony KDS-55A2020 55" Television

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My tv does not power on. Blinks green, then red. I replaced the bulb recently, it was blown, but now it still does not power on. Any other problems with this tv that could be the cause?

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Did you ever find a solution to this problem? The same thing happened to my tv today.

Posted on Dec 31, 2010

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I have the same problem. Can a bad lamp affect the sound?

Posted on Oct 12, 2010

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2 Answers

Power button blinks green about 1 minute then goes red


There is an additional problem,

if the bulb had been replaced by a technician, call them back and ask for additional support, since they did not fix the problem.

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It is quite involved to replace, if not technical get professional help.

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Ballast failure is more that likley the problem. Is the lamp light blinking,...once every 5 seconds? Discontinued part and can only be purchased used or rebuilt. Rebuilt units are available, check Ebay. Have a service type person confirm problem before throwing good money after bad!

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Turns on and off then back on then off


Discovered bulb had blown out.
At power on button, red light and green light flashed and no picture was present. I opened side panel after unplugging tv and let the bulb housing cool, then removed the bulb and discovered it had blown. Luckily I had a replacement bulb from the purchase, replaced it and it worked again.

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3 blinks means the lamp cover door is nit properly attached. Remove the lamp door and reinstall it

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Hi,
Symptom shows Lamp is weak in result and causing restart of TV again and again. Your TV requires new lamp as per following part number...
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It is available in Sony Accessories Store for $200 and replacement procedure is written in instruction manual of TV.

Always buy Sony original lamp for TV and avoid aftermarket / cheap lamp for TV safety.

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I replaced the bulb recently on my tv and did not push the bulb all the way in. I had the same issue you are having now, and I was able to get it to work when I realized it had not been installed properly. Make sure you push the bulb in all the way then push down on it so it sets in nice and snug. Sounds like someone replaced the bulb and installed it wrong like I did the first time. Good luck.

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1 Answer

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Had same problem after only 3 months, tech looked at it said had a power circuit problem causing it to keep cycling, they exchanged my TV. No problem since.

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1 Answer

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mine did the same thing, call panasonic its the buld blown. just had mine replaced under warranty for 18 months after that bulb is 284.00 they've had a lot of problems with the bulbs in these tv's you can search gooogle for them

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