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Kdl55hx820 red light flashes 4 times - Televison & Video

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It sounds to be a power supply regulator fault. You have to check all the output voltages comes out from the main power supply board for any missing voltage. You must be somewhat sound in electronics to troubleshoot this porblem. If you are, check the site linked here. It ahs details about blinking codes and troubleshooting to many brand and model TVs, incuding Sony. http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by type in the Brand name to your set in its search box, or view it in Mosaic / Timeslide / Flipcard option.

Posted on Jul 25, 2013

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Posted on Jan 02, 2017

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I have 4x blinking red light, the lights indicate the LD driver has gone bad. I also have a few bad LED back lights. How difficult is it to access the LED back lights for replacement on this board?


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/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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The red standby light flashes in the code of 4 times then pauses then 4 times then pauses


Five times blinks to Sony Bravia is related with an IRK error. It is related to its main digital board. In most cases, the main board might need replacement. It will be best to contact the authorized service center for Sony. If you're sound in electronics, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by type in the model name to your set in its search box, or view it in Mosaic /Timeslide option.

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The red standby light flashes in the code of 4 times then pauses then 4 times then pauses.


Over voltage protection function is turned ON. Just unplug the TV from AC mains wall socket, and re-plug it back after 10 minutes or so and check. If it do not help you, the main power regulator board should be checked and replaced. If you wish to get more details about blinking codes to Sony brand TVs, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by type in the model name to your set in its search box, or view it in Mosaic /Timeslide option.

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1 Answer

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I would take note of the message you are getting and buy a new battery. I believe the red flashing lights mean that one or more of the cells in the battery are dying, and it's best not to turn off alarm lights like these. Did the battery hold charge for a longer period than one hour before you started to see the flashing light warning?

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The power button has a blinking red light, what does this mean?


4 flashing red light = av cable not connected. double check id av cable is connected properly. try using different av cable.

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Never a good sign when you have red flashing codes

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Please rate my help++++Thanks for using FIXYA

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Red light flashes four times


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