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Red standby light blinks once, TV won't turn on, Samsung LED TV

Hi there,

I have a Samsung 55" LED Smart TV, model number UN55H6350AF. The TV when plugged in, will have the standby red light on solid. When I try to turn the power on, the red light will flash once, then stay solid again. The TV will do nothing, I hear no sound like the TV is even trying to power on, nothing.

My friend took the TV to a local repair shop, and the guy figures the issue is with the LED strips and quoted a insane price to repair the TV. This TV is just two years old! I was hoping someone may have some insight to this issue so I can look for parts to repair the issue.

Thanks for your time and knowledge!

Ryan

Update (08/03/2016)

Block Image

I added to your diagram to show as to what I measured, hopefully this will help you :)

Thanks,

Ryan

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Try pressing remote then immediately block the remote signal with you hand. Tv should come on. Worked for me.

의 답변

@revelation since your backlight comes on when you disconnect the connector, you know that it is not the LED strips. From the voltages you list (great idea to mark how you did it) it looks like a bad main board.

Rep: 1

의 답변

Thanks :) I have ordered a main board off of ebay, it should be in next week. I will let you know how I make out. Thanks again for all of your help and knowledge!

의 답변

Good news!!! The part finally arrived and I installed it and that was the issue! The TV turned right on and seems to work perfectly! Thanks again for all of your help, without your knowledge and help this TV would still be broken and possibly being recycled! Thanks oldturkey03!!!

의 답변

What was the cost of the board?

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선택된 해법

@revelation I am not saying the repair shop is wrong or right, I'd check a few things first. Treat this like you would a "No Power" situation.

Block Image

Block Image

Use a multimeter and check those points. Let us know what you find.

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I used a multimeter and measured the following:

IC202 - 3.29

L204 - 0.00

L201 - 0.00

L203 - 0.00

L306 - 0.00

L305 - 0.00

Let me know what you think oldturkey03, I sent you a email to your gmail account with a bit more detail.

Thanks,

Ryan

의 답변

@revelation got your email. From your voltages it looks like you have a failed main board. That's the one in the picture. Can you check pin 4 on connector CN201? It should show 5V. Pin 4 is positive lead and connect other lead from multimeter to ground. Pin 11,12,13 should show 13V. Measure those as well

의 답변

This was exactly the problem I was experiencing; I ordered a replacement main board from the refurbished part website, installed it and was back in business for less than $40. That's much better than scraping the TV or paying for an expensive repair at a repair shop as I was initially thinking I would have to do. Thanks a lot for this solution!

의 답변

I am experiencing the same issue. Can you please provide me website name where you ordered the refurbished part (main board replacement)? I am planning to buy one. Thank you in advance.

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Website I used was gopartserv.com

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Hello, I am having the same issue with a 40 in, I hear a noise once I plug it in and the red light become steady after flashing .

What refurbish site did you use ?

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Can you check pin 4 on connector CN201? It should show 5V. Pin 4 is positive lead and link other lead from the multimeter to ground. Pin 11,12,13 should show 13V.

Block Image

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I purchased a refurbished main board and switched it out and I have the same issue. The red light flashes when holding down the on button but the tv does not turn on. what else can I try?

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Ryan 가/이 대단히 고마워 할 것입니다.
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