Rep: 1
1
I have a Samsung un58j5190,, power supply went out a couple years ago and I replaced it it went out ahold this year, I replaced it (twice) but I have patterned dark spots
All of the LEDs are working just some not as bright as others
Any ideas what else I can do
Already spent almost what I paid for the tv
Thanks
Ortega
Cette question est-elle utile ?
Rep: 448,9k
11
366
1,4k
Hi,
It may be that the LEDs themselves might be failing or have a faulty connection to the strip.
Try the following to see if they are the cause of the dark spots.
Turn off the TV if on and then disconnect the power from the TV.
Remove the back cover from the TV and then disconnect the cable that is between the power board and the mainboard.
Reconnect the power to the TV.
The LED backlights should turn on full and stay on and they should all be of the same intensity. There will be no picture because the mainboard is disconnected.
If they’re not all the same brightness the LED strips(s) might need to be replaced. Replacing individual LEDs is more difficult as you have to get LEDs with the same specifications etc. otherwise there may be a noticeable difference which you may already have anyway.
Search online for Samsung un58j5190 LED strips to find suppliers that suit you.
There are videos on YouTube that show how to change the LED strips in TVs.
@Ortega Hobson
OK.
What has happened is that some diffusers have come loose.
The diffusers spread the light from the LEDs to give an even glow.
You can see the bright spots in the first image where the diffusers have moved and the pin points are the LEDs themselves.
Here's a video that may help. At 32:18 into the video, you can see the plastic diffusers (little cone like cups) on the LEDs on the strip.
The loose ones need to be glued back into position
Cette réponse est-elle utile ?
sorry its taken me so long to get back to this things have been pretty crazy as of late
i disconnected the main board and all the led strips are full bright i have plugged in 3 other main boards to see if it made any difference, as soon as i plug a main board in they smaller led group go dim
what is the next step ,,
thanks
I have no idea how to use this thing, HELP
Ortega
@Ortega Hobson
Post some images of the problem so that it can be seen.
Here's how Ajout d'images à une question existante
I put new pics of the led pattern that is dim, small group of 6 towards the middle
look at question
Dernières 24 heures : 0
7 derniers jours : 0
30 derniers jours : 9
Total : 440
