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

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Samsung Television

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Ryan @revelation

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发帖于: 2016年8月1日

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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

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.

由 Gina Radway 完成的 2017年3月27日

@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

由 oldturkey03 完成的 2016年8月3日

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!

由 Ryan 完成的 2016年8月4日

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!!!

由 Ryan 完成的 2016年8月19日

What was the cost of the board?

由 jeffdharlan 完成的 2017年1月3日

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oldturkey03 @oldturkey03

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@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.

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

由 Ryan 完成的 2016年8月2日

@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

由 oldturkey03 完成的 2016年8月2日

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!

由 Mufundisi 完成的 2018年1月5日

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.

由 Gaurav 完成的 2018年5月29日

Website I used was gopartserv.com

由 Mufundisi 完成的 2018年5月31日

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Try pressing remote then immediately block the remote signal with you hand. Tv should come on. Worked for me. — Gina Radway
@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 — oldturkey03
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! — Ryan
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!!! — Ryan
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 — Ryan
@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 — oldturkey03
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! — Mufundisi
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. — Gaurav

gagan snadhu @gagansnadhu 声誉积分: 26 3 · Answer 1 · 2017-04-25T22:34:01-07:00

gagan snadhu @gagansnadhu

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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.

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It blinks 3 times, powered on for 1 sec then went black. I don't have a remote control.

由 Melissa Moreno 完成的 2019年9月2日

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GEORGE @george72 声誉积分: 23 2 · Answer 2 · 2021-03-19T06:18:12-07:00

GEORGE @george72

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Hello,

My Samsung UE40D5000PWXBT, won’t power on , stand by light blink 3 times when pressing power on the remote, someone told me that means the main board is faulty.Is that true?Is there anything else I could check?

If I’m replacing the main board , is it enough to search for it by the tv model , in this case UE40D5000PW ,or does it have to be exact serial number/code as the faulty mother board?

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Brian fields @bjfields 声誉积分: 1 · Answer 3 · 2019-08-19T12:36:08-07:00

Brian fields @bjfields

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发帖于: 2019年8月19日

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I struggle to remember the details back to 2016 when I repaired mine- Is the board you replaced opposite where the power cable plugs in. On my TV, reconnecting (pushing in) the power cable (after disconnecting every time we had a storm) fractured one of the tiny tracks on the board opposite. A dab of solder fixed it.

Regards

Brian F

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How do you repair a stand by switch on a plasma tv model number ps43D450a2wxxu it comes on but wont change over to watch tv

由 splatrik 完成的 2019年8月25日

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kwalkowski @kwalkowski 声誉积分: 1 · Answer 4 · 2023-10-27T13:25:52-07:00

kwalkowski @kwalkowski

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发帖于: 2023年10月27日

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Hi there,

I have a Samsung 65" LED Smart TV, model number UN65AU8000F. 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 already did all necessary reboots or checks.

Plz let me know what would that be (PS, backlight or mainboard). The tv is not even 2 years old. Thanks for your time and knowledge!

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did you ever fix it , i have same issue..

由 Coy Snow 完成的 2024年1月24日

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Samsung Television

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

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