Question about Sony KDF-E50A12U 50" LCD HDTV

1 Answer

Kdf-e50a12u. just replaced bulb and tv was working for 5 mins then turned off and I have flashing red, green, red, each for 1 second then a 3 second green, then repeat.

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  • Master
  • 643 Answers

Your fan or balast is bad. Try replacing the fan first. Sounds like a thermal sensor is tripping. Hope this helps.

Posted on May 28, 2011

  • 1 more comment 
  • ray7540 Jul 09, 2011

    Where can i find the thermal sensor ? I have the exact same problem, aslo after changing the lamp. the door mechanism works fine, but i get 2 red blinks when the tv goes off after 2 mins, now i can't even turn it on again at all.

  • Mando Mojica
    Mando Mojica Jul 12, 2011

    Try going to esupport.sony.com

  • Dave Bond May 20, 2012

    With the rear cover off the heat sensor is 1/2-3/3" in size in an oval case with 2 connections just to right of the fan unit, same as used on tumble driers, was a Year ago you left query so you may have got rid of it by now.

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Posted on Jan 02, 2017

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If its Sony KDF-E50A12U TV then its problem of weak lamp in TV that will be replaced and problem will be fixed. Lamp light on TV front will lit in case lamp is dead or broken but current symptom shows Lamp is not either dead or broken yet it got weak in result and causing problem.
Lamp replacement is easy and would be written in user manual.
Please but Sony original lamp for TV safety.
Let me know if you have additional question.
Thanks.

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