Why won’t my new tv not turn on. Power outlets are all ok null

Question

Accepted Answer

I had the same issue. There appears to be an early failure problem with the power supply on the S90D 77-inch TVs. Failure typically occurs after 1 or 2 months use. TV won't turn on and the red standby light does not come on. Repair is pretty simple - replace power supply. But no guarantee that power supply won't fail as well. I chose to return my TV and go with a different model. Too bad because the picture was excellent while the TV worked.

Answered by Anonymous 1 year ago

Answer

I purchased a new one for Costco and just over three months later it made a pop and quit. After dealing with Samsung back and forth with e-mails for over two months they said they could not get anyone out to repair it and sent me a refund. I went back to Costco and bought another thinking it was a fluke but one month later here I am this morning and it happened to this TV as well. I am in the no questions asked return policy from Costco this time but is a hassle taking it down off the wall to return, getting a different TV and installing and programming it. 
DONT BUY THIS TV !

Westy · Answer

Same issue here. TV is only 3 months old and powered off while watching. Can't power on despite all troubleshooting steps. So disappointed in the quality of this expensive TV - it had a great picture. Now must wait a week for service technician and have no television in the mean time. Had a Sony for 10 years without an issue and only replaced it because we wanted OLED.

Answered by Westy 1 year ago

Verified Purchase

David · Answer

same happened to me, purchased oct 2024 and died march 2025, ultra frustrating!

JocelynD · Answer

This television has a chronic malfunction issue . Mine died in first two weeks. 
Samsung has made garbage with this model. Get a refund asap

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Yes, absolute garbage TV. Same issue two months after buying it, then failed again two weeks later. Buy an LG C4 instead. It's a shame because it does have a great picture.

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This is a new "feature" i'm afraid to say it but we all wastes 2 grand here.

I am on my second S90D Best Buy replaced one in first 60 days and samsung tech have been to my house 2 times to repair the replacement... Honestly what Bravia is offering is better for similar money. Like their refrigerators Samsung has cheapened the brand and their quality of product. Let's be clear this isn't some black friday 200$ walmart job here...its a 2400$ high end TV

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Same issue. On my second TV and it failed as well. My first one was two months after purchase.  The second one I got failed a month after purchase.

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Same issue.   Three months after purchase

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Garbage tv. Power supply burns out after a month. Samsung zero help. New psb is a band aid not a solution...fails again

77s90downer · Answer

Samsung is well aware of the problems with this model.  Why is Best Buy still selling them.

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This issue is still happening.  I've gone through TWO of these TVs in under 10 months due to it.  As prior commentators noted, one day the TV works fine.  The next it won't even turn on.  No red light.  Nothing.  It's as if the TV just shuts down for no reason and nothing can turn it on again.  The first TV I purchased lasted just at 3 months, and the second not even 6 months.  This is clearly a defect in the TV itself that Samsung needs to address.  I would never purchase another one.

Burnout · Answer

It is the power supply.  This leads to another question.  Does the newer S90F model have the same problem or has Samsung provided that model (for more money) with a stronger power supply?

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77" S95D failed after 3 months. Service tech coming later this week.

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I fixed my 65 inch s90d, no power and no standby red light.   It was the mainboard, NOT the power board.   Order one for tvpartstoday, BN94-18405Y.  Less than $100 fix.   Hope this helps other.

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Me Too. The power supply in mine quit the other night. It tripped the circuit breaker overnight while turned off. 77" OLED model QN77S90DDAAFXZA. I submitted a repair request. Waiting for a response from the repair company. Case 4183237804

Under warranty. Got the TV the end of Jan. 2025. It was in use until April, then off all summer until Nov. 2025. It's a winter home, so the TV had maybe 3 months of use.

I'm wondering if they corrected the power supply issue so it doesn't happen again. I'm seeing posts saying this is a common problem with this TV. Perhaps a bad batch of power supplies.

Answer

The power supply in mine quit the other night. It tripped the circuit breaker overnight while turned off. 77" OLED model QN77S90DDAAFXZA. I submitted a repair request. Waiting for a response from the repair company. Case 4183237804

Under warranty. Got the TV the end of Jan. 2025. It was in use until April, then off all summer until Nov. 2025. It's a winter home, so the TV had maybe 3 months of use.

I'm wondering if they corrected the power supply issue so it doesn't happen again. I'm seeing posts saying this is a common problem with this TV. Perhaps a bad batch of power supplies.

Answer

My 77” failed and they just replaced the power board. Works now but let’s see if it’ll hold…

Samsung · Answer

So that we can provide troubleshooting tailored to your specific setup & usage scenario, please reach Samsung Support at 1-800-SAMSUNG, 8AM - 12AM EST, 7 days a week, or Chat with Us on Samsung.com: https://www.samsung.com/us/support/contact/ 
~ Samsung Specialist

“Why won’t my new tv not turn on. Power outlets are all ok”

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