LG OLED 55EC930V Horizontal flashing lines problems

[nomoresonys]

Re: LG OLED 55EC930V Horizontal flashing lines problems

There's an adjustment that can be made from the service menu but the service menu can be tricky to access.

[nomoresonys]

Re: LG OLED 55EC930V Horizontal flashing lines problems

Ok, when you are trying to get the menu are all accessories hdmi rca etc unplugged so just the tv power cord is only thing hooked to tv?

[maxino]

Re: LG OLED 55EC930V Horizontal flashing lines problems

Unfortunately, even if the flashing lines are currently part of the full image, is not possible to glimpse the menues options. But I'm almost certain I already disabled the dynamic contrast years ago. The lower part of the screen is ok for about 5cm, the rest is black with random noise lines, but them never appears in the same place.

https://youtu.be/vgF_kTjzEe8

[nomoresonys]

Re: LG OLED 55EC930V Horizontal flashing lines problems

Can you get the menu up?? If you can, turn off the Dynamic Contrast- Picture- Picture Mode Settings -Expert Control- Dynamic Contrast.

[maxino]

Re: LG OLED 55EC930V Horizontal flashing lines problems

done, thank you!

[SMDFlea]

Re: LG OLED 55EC930V Horizontal flashing lines problems

Can you please post your images here .Click on the "Go Advanced" button, then "Manage Attachments" .

[maxino]

Thank you for your gorgeous forum.

I have a LG OLED 55EC930V, that worked perfectly hanged on the wall for more than 5 years, now, after a initial screen dim for 30 seconds, I cycled power it, and now I have this strange problem that was filmed on this short youtube video.

https://youtu.be/vgF_kTjzEe8

Since the TV in background works, it respond to the remote normally, audio works, and after reading similar posts on this forum I understand it can be the TCON board (please help me to understand if it is a defective panel instead) I found two part numbers for this TV, one, the oldest version (6/2014) have a FPGA chip, the second one (11/2014) seems to have a custom chip instead.

Original part number: 6870C-0555A
Possible improved (?) compatible part number: 6870C-0477C

With your kind help, I just want to understand:
- If behavior in the video is a panel issue
- If the problem caused, can be addressed by replacing the TCON, and if the "improved" TCON can be a better solution if compatible. (less heat)

Thank you very much for your time and your help!
1. "improved" replacement found on ebay
2. same model replacement fount on ebay
3. original part
4. back sticker