NOGIS NGSR65UHD turns itself off when to much red in image

[xcc]

Hi,

I have a NOGIS NGSR65UHD (Probably some kind of rebranded TV?) which goes to standby when there's too much red displayed.

I've tried different image settings, but the only thing, that lets it operate stable is when I turn "color" to 20%.
Different Brightness or Contrast, don't change this behavior, as far as I can tell.

Does the panel draw more power when it displays a red image?
Maybe theres a fault in the PSU, which prevents it to supply enough power in this scenario?

I'm new to TV repair and wanted to hear your thoughts about that.
Any ideas what could cause this or where i should start to troubleshoot?

Boards inside the TV:

PSU: Zwatt ER5565 REV 1.0 from 18-10-2018
Panel: HV650QUB-N90
TCON: HV650QUB
Mainboard: T.MS3458.U801

I've attached images of the Boards.

Thank you in advance for any Input!

[dskall]

Re: NOGIS NGSR65UHD turns itself off when to much red in image

I doubt it's power supply issue. I would try firmware update first.

[CapLeaker]

Re: NOGIS NGSR65UHD turns itself off when to much red in image

Sounds like a main board issue to me.

[Korbov]

Hello, please help me, my power supply chip has burned out