Re: Samsung UN65EH6000 - Vertical Lines sometimes, other visual artifacts
I haven't had a chance to check the cable for chips yet but I noticed there's an inductor on the Tcon board that got hot. I don't know if that's a symptom or a cause of the issue.
If it's anything that you mentioned, is there any way to fix it or am I SOL?...
MonkeySlug
Member
Last Activity: 01-15-2022, 06:36 PM
Joined: 11-09-2019
Location: East Coast
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Re: Samsung UN65EH6000 - Vertical Lines sometimes, other visual artifacts
I'm not sure what that means. Is that something I can diagnose or fix?Leave a comment:
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Re: Samsung UN65EH6000 - Vertical Lines sometimes, other visual artifacts
What about the vertical stripes I sometimes get, and the slow refreshing and ghosting at the right side?...Leave a comment:
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Re: Samsung UN65EH6000 - Vertical Lines sometimes, other visual artifacts
I have some videos of the problem.
[B]SEIZURE WARNING - FLASHING COLORS AND LIGHTS:[/B]
[url]https://www.youtube.com/watch?v=hu_1OaVoU1g[/url]
In this video, I ran a "pixel unsticking" video on YouTube that cycles RGB very quickly. As you can see, the left side behaves normally. The middle is darkened. The right side is kind of blended, kind of white. I zoom in on each corner so you can see the behavior better.
[B]SAFE: VIDEO 2:[/B]
...Leave a comment:
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Samsung UN65EH6000 - Vertical Lines sometimes, other visual artifacts
Background:
I found this TV by the side of the road saying it needed a new backlight. Thanks to the help of this forum, I was able to repair the backlights and the power board.
When I put the TV together, I noticed visual artifacts on the right side and a darkening of the center area, mostly on the right. Specifically, on the far right, the screen is very slow to refresh and has a smearing effect. I've taken video and will link that below. The photos show some of the afterimages that persist for a few seconds to a few minutes, again, on the right side mostly.
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Re: Samsung UN65EH6000F - Half LED Strip Working
I swapped the cables and the problem still exists on the right side. I'm going to make a new thread since the backlight problem has been resolved.Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
I spoke too soon!
The backlight is fine but now there is another problem. When I turned it on this morning I saw this screen with colored bars again.
This happened the other day but I reseated the two ribbon cables to the Tcon board and then it worked.
When it was working, I also noticed some ghosting (afterimage of a news logo remaining on screen after I changed stations) on the right side, and if the scene changed rapidly, it would look like it smeared.
...Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
It works! I can't thank you enough for all your help. I really couldn't have done this without you.
Thanks again man....Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
Oh gotcha. So I can attach a 1 ohm 1/2 Watt through hole resistor on top of that and it should be good as a permanent fix?
I'll dig around and see if I have any. If not I'll get it ordered right away and will update once it's in....Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
I don't have any resistors on hand for testing. Do you know exactly which resistors I should order? I don't know anything about surface mount components....Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
Very nice! I think you've found the problem.
L2 bank is 1.2 ohms.
L1 bank is open circuit.
Upon closer inspection, all four L1 resistors are fried.
I'm including photos of both sets of resistors.
The resistors for L2 are the following:
- 1 each: 4R3
- 3 each: 3R90...Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
I've taken a couple. If you need anything else let me know.
Thank you for all of this....Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
The component in pointing to?
It looks like Z1948A and below that, B03Z1...Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
D1+ had no voltage. D2+ is working.
Both diodes resistance test identically:
.445 M ohm one way
.435 M ohm the other way...Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
One pair of outputs shows no voltage, and the other behaves normally. When the string is plugged in, the LEDs supplied by this side illuminate....Leave a comment:
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Re: Samsung UN65EH6000F - Half LED Strip Working
If you need any other pictures let me know....Leave a comment:
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Samsung UN65EH6000F - Half LED Strip Working
To summarize, I found this TV by the side of the road with a sign saying it needs a backlight.
I opened it up and saw four diodes had burned, and a bunch more scattered around tested as bad.
This TV has six rows, each consisting of two strips that link together.
I replaced all the LED strips.
Now only one half (the lower half) light up. The upper half do not.
I tested voltage output from the board. Sure enough, the lower half shows 300 V DC when the LEDs are disconnected, and the upper half output shows nothing.
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Re: New Members - please post your introductions here
Hello. I'm posting here so I can make a thread about my TV. Only half the LEDs turn on. Something's gone wrong with the power board and I'm not sure what.Leave a comment:
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