More updates. Now that I have a sample to work on, (the Samsung UN65JS8500F TV), I would like to debug other issues. I have 2 sets of boards,Main and T-Con (Power Supply still original). they both behave the same way. The StandBy LED flashes 5 times indicating some sort of issue. Is this issue related to the main board or because is it read on the power supply board?
I have unplugged the T-Con from the Main board. Also the Blue-Tooth and WiFi modules are disconnected. Only main board and PS are connected. They both behave the same way. The StandBy LED flashes 5 times indicating some sort...

An update. It seems that I found a short on the panel boards and it seems that it runs across the panel , left and right. It is a dead short between the 2 points marked in the images. [ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3516021}[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"small","data-attachmentid":3516022}[/ATTACH] Not sure what differential signals they are. it seems that they have a pulldown resistor on the line. Not sure what else it can be done....

Hi Lotas

what you saw in the image is bare copper text. No components there.

OK. Lotas

I will check on that. Thank you

Lotas

it makes sense. I saw this video and thought that would work as well.
[url]https://www.youtube.com/watch?v=9v4Tt5y4XuI&pp=ygUbU2Ftc3VuZyBUViBubyBzY3JlZW4gcmVwYWly[/url].https://Lotas<br /> <br /> it makes ...mVwYWly[/url].Lotas

it makes sense. I saw this video and thought that would work as well.
[url]https://www.youtube.com/watch?v=9v4Tt5y4XuI&pp=ygUbU2Ftc3VuZyBUViBubyBzY3JlZW4gcmVwYWly[/url].

EazyBone

I will reset the cable.

Lotas

thank you for the reply. The cable was disconnected to test EazyBone solution. I have seen a couple of video where the 2 panel cables were disconnected from T-Con and the leds turned ON. Is every Samsung LED TV looking for a feedback from the panel? With the panel cables connected and power off I have checked for shorts on the buffer boards to GND. Could not find any. Any places I should check?

Thank you

EazyBone

I wanted to let you know that I have purchased suction cups specifically for this kind of work. See attached images.Let me know if need more images.

Thank you...

Hi EazyBone
Thank you for your reply. Assuming that the panel is damaged, and everything else stayed the same , with the 2 T-con cables going to the panel, shouldn't the T-Con board LEDs be turned on, no load on the T-Con? I tried your test and the result is the same. Actually the 2nd T-Con led , this time it did not blink.

The grounding tape was reapplied and checked continuity between the buffer boards and chassis.

Hi, I am new here. I am an electronic technician and trying to fix an issue with my Samsung UN65JS8500F led TV.

Re: Dell W2600 - no picture unless I wiggle

Hi I am new here but I have the same TV in my basement that I am trying to fix. Anyway, I think you should watch this video ( [url]http://www.youtube.com/watch?v=znJAR88sOG4[/url] ) I found while researching the problem and fixed my TV, but not 100%. Now my TV only turns on by remote control but only if plug the power in the back of the TV, remove the cord and then plug the power back in and turn it on by remote control. It will stay on as long as I want. If I shut it off, I will have to wait maybe 3-4 minutes and apply the same procedure....