Question about Sony BRAVIA KDL-55NX720 55" 3D LED-LCD TV - 16:9 - KDL-55NX720

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Sony Bravia KDL-55nx720 My tv is stuck in standby mode. Blinking twice.. Would replacing the power supply possibly fix this problem? Please help.

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Normally yes. Blinking twice is power protection trip. Look first for open resistor, broken fuses (and short circuits or broken transistors / ICS if thats the case).

Posted on Oct 12, 2013

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6ya6ya

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Posted on Jan 02, 2017

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ABRsvcs

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SOURCE: Sony Bravia KDL-40W4500 turns off

This can indicate a problem with the high voltage circuits. Since this is a new set, it should still be under warranty. DO NOT open up the unit as that will void the warranty. Return the set or request warranty service. Note the 8 blinks when you request service as that should allow them to bring the correct replacement parts.

Keep us posted.
Dan

Posted on Jan 05, 2009

Anonymous

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SOURCE: help my sony bravia just today got stuck in

When I power my Sony lcd 42 inch the red light blinks then I push the power button the green standbye light just continues to blink, any suggestions

Posted on Mar 05, 2010

tvhelp-Dave

Shukai Fung

  • 178 Answers

SOURCE: My Sony KDL-26S3000 won't turn on it well get stuck in standby

Please see the troubleshooting chart, BU1 board part # A-1268-869-A, cost approx $230.7685cfa.jpg

Posted on May 23, 2010

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These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
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Problem is related with Power board. Check and confirm the secondary supply of 5V & 12 V are normal. Replace the power board

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Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

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