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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
Samsung UN50EH5000F no picture

 

 


Mattchall22
New User

Dec 31, 2017, 1:13 AM

Post #1 of 7 (334 views)
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Samsung UN50EH5000F no picture Can't Post

Hi All,

Looking for some help with getting my picture back on my Samsung. I was watching it the other night and the screen went black, sound remained. Flashlight test shows a menu, no backlights. I replaced the power board and that didnít help. Wondering if I should replace the other board that has the hdmi inputs amongst other things. The power board looked ok visually, Iíll see if I can post a pic of the other board, nothing looks fried but it looks a little corroded on the back. Any suggestions would be appreciated!



jts1957
Veteran


Dec 31, 2017, 2:57 AM

Post #2 of 7 (329 views)
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Re: [Mattchall22] Samsung UN50EH5000F no picture [In reply to] Can't Post

You will be replacing something like these due to somebody at Samsung deciding to ship out ALL sets with the Backlight Intensity set at 100% because it made the picture so 'Great,'

http://www.shopjimmy.com/...-strips-8-strips.htm


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Location: Far, Far Away

(This post was edited by jts1957 on Dec 31, 2017, 2:59 AM)


Mattchall22
New User

Jan 3, 2018, 3:17 AM

Post #3 of 7 (306 views)
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Re: [jts1957] Samsung UN50EH5000F no picture [In reply to] Can't Post

Thanks for the information! So is it common for all of the leds to go out at once? Or would that indicate some other issue?


jts1957
Veteran


Jan 3, 2018, 3:31 AM

Post #4 of 7 (304 views)
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Re: [Mattchall22] Samsung UN50EH5000F no picture [In reply to] Can't Post

Do you replace only one cell (battery) in a multi cell flashlight when one fails?

In theory:
ALL LEDs experience the same voltage drop...
ALL LEDs experience the same current... &
ALL LEDs have the same number of hours of running on them.

If you do replace them be sure to reduce BL intensity.


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Location: Far, Far Away


Mattchall22
New User

Jan 4, 2018, 3:52 PM

Post #5 of 7 (293 views)
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Re: [jts1957] Samsung UN50EH5000F no picture [In reply to] Can't Post

That seems like a little different scenario but I get your point I think. It just seems odd that all LED's would go out at the same exact moment.


jts1957
Veteran


Jan 4, 2018, 8:16 PM

Post #6 of 7 (291 views)
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Re: [Mattchall22] Samsung UN50EH5000F no picture [In reply to] Can't Post

Old tyme Xmas tree lights.

Go ahead and just replace the defective LED(s) or strip(s) that has the bad LED(s). Be SURE to mark which one(s), so that when you're back inside the panel once again after a fairly short period of time, you'll be able to tell if the same LED/Strip has failed, or if it is one or more of the originals.


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Location: Far, Far Away

(This post was edited by jts1957 on Jan 4, 2018, 8:30 PM)


chochy
New User

Jan 7, 2018, 11:40 PM

Post #7 of 7 (252 views)
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Re: [Mattchall22] Samsung UN50EH5000F no picture [In reply to] Can't Post

I'm working on the same TV, and almost half of the LED's were out. I just replaced each LED that was out. I didn't think it was worth $70 for the full strip kit for a 5 year old TV.

 
 
 


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