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Samsung UN46EH5300F



Techbox
New User

Dec 28, 2017, 4:23 PM


Views: 654
Samsung UN46EH5300F

I have the TV model I posted above and here is what it is doing and what I have done I can get no image on the screen unless a flashlight is shined upon it, then I can see a scrambled image. There is no evidence of backlights illuminated from the back at all. I replaced the power board out of blind hope to no avail which leaves the main the TCON and the backlight strips. Rather than just purchase another incorrect solution I would like to get help on figuring out which component is bad if possible. I can post pictures if necessary. Thanks in advance



jts1957
Veteran


Dec 28, 2017, 8:34 PM


Views: 644
Re: [Techbox] Samsung UN46EH5300F

http://www.shopjimmy.com/...supply-led-board.htm
In case you did NOT order from here or chose not to read the Note or Message:
PLEASE NOTE: The LED strips (part number sj-BN96-28769A/BN96-28768A) in the models listed are prone to failure. If this board does not fix the problem with your TV, it is likely that you have defective LED strips. Power supply and LED strips failures cause similar symptoms in these models.


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Location: Far, Far Away


jgtime
New User

Dec 28, 2017, 10:09 PM


Views: 633
Re: [Techbox] Samsung UN46EH5300F

All signs are pointing to bad led strips...

I suggest investing in a LED strip tester, found at Shop Jimmy or Ebay.

Pull apart the tv down to the strips, taking photos as you go.
With a tester, you will find which strips are bad and can replace from there.

Note - Only order the strips by the model number shown on the strip. Do not order strips based on the "tv" model number as shown on the back of the tv.

Good Luck


Techbox
New User

Jan 3, 2018, 5:10 PM


Views: 609
Re: [jts1957] Samsung UN46EH5300F

The power board was not ordered from Shop Jimmy because they were out and still are out. I did order one from Ebay and put it in to no avail.


jts1957
Veteran


Jan 3, 2018, 8:06 PM


Views: 606
Re: [Techbox] Samsung UN46EH5300F

Cannot be said any simpler ...

If this board does not fix the problem with your TV, it is likely that you have defective LED strips.

Work towards proving or disproving LED strips. Try Unplugging the cable between the Main & Power/LED Drive board and see if LEDs come on AND STAY on.


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Location: Far, Far Away

(This post was edited by jts1957 on Jan 3, 2018, 8:09 PM)


Mattchall22
New User

Jan 4, 2018, 6:17 PM


Views: 596
Re: [jts1957] Samsung UN46EH5300F

So if you take the steps you mentioned previously and you get a faint flicker of a few LED's and eventually nothing is that indicating all LED's should be replaced? I get the same behavior with the two power boards I have. Thanks for the help by the way.


Techbox
New User

Feb 12, 2018, 5:58 PM


Views: 480
Re: [jts1957] Samsung UN46EH5300F

This is finally finished. It actually ended up being the mainboard. I now have a new project I will post. Thanks!