Question about Sony Bravia Kdl-55ex720 55" 3d 1080p Led Lcd Hdtv
Hi I have a 55 inch TV that turns on for only 2 seconds and then turns off again, then will show the four blinking red lights. I replaced the main board and still has the same problem. Reading this I see it may be the power supply board but I don't really understand the terms used to check if that's it. Please help Im desperate! Thank you
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: When first attempting to turn
Thanks for your support with my situation. I read many people's complaining about having a red light blinking 4 times in the Pwr. display. It was recommended I blow out the fan for the bulb. I did just that and it did solve the problem, at least for now.
The fan kicked on which allowed the Tv to power up.
I am guessing this is a common issue and made sense that the fan was stuck with dust.
I can't thank your site enough for this valuable information. Spending 4k and already having one unit replaced with what was a factory inherent problem and then going down so quickly was very upsetting.
I am hopeful it will work for now on.
Posted on Jul 21, 2008
SOURCE: Four blinking red lights.
you can have the inverter board replaced...instead of the entire panel.
KDL 40S2010: inverter part # 178950032, you will also need 2 spacers..part # 289765511
you're looking @ 200-300$ for the inverter and 5-10$ a piece for the spacers.
KDL-46V2500: inverter part # A1251295B
you're looking @ around 500-600 $ for the part
Posted on Sep 09, 2008
2 things you can try. first is to use another headphone to see if the problem still happens. If it does then either the Jack is bad or the Jack needs to be resoldered. Sony is famous for having cold solder connections especially with User type controls or plugs.
Posted on Dec 20, 2008
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