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I need a mainboard for Sony kdl 55hx755. Where can I find it?

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Ebay.com
http://m.ebay.com/sch/Sony-TV-Main-Boards/163768/i.html?_fsrp=1&Brand=Sony&Type=Main%2520Board&_pgn=2

Posted on May 08, 2017

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6ya6ya
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Posted on Jan 02, 2017

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Sony TV KDL-40EX720 is faulty!


From your video, it looks like a mainboard, Tcon or cable issue.

You can try to contact 40 diag LED EX720 Series Internet TV Sony to see if they have spare parts for this. Those three items above I would target as the main problems.

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this is a fault of your digital tuner on the mainboard on some models they can be replaced alone others you may need to replace the whole board

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Sound turns off after tv is started sound only one


Hi my name is Roety,
I can help you with your issue ,
Without a model number, I do work on sony LCDs.
The audio is on the mainboard. You need the mainboard replaced.
Reboot every device by unplugging the AC power , if the sound still cuts off replace the mainboard
 
 
 
If I have helped you with your issue please click accept.
If you have more questions you can still respond
I will reply asap
Thanks
Eric

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1 Answer

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mainboard damaged and need to be replaced

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I have a sony bravia model # kdl-40s4100 40 in that wont power up what are the problems that could cause this?


If you have the led light on, then you need to replace the mainboard.

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