KUBO K1249VTSTUHD (49" ultra 4K Smart TV): Screen Problem

[F_Morgado]

Hello,

I need help to dispel some doubts and try to reach the correct solution (if there is any...) to the malfunction.

the screen has red blinking shadows/outlines, duplicates images, characters. this anomaly crosses all image sources: HDMI, SCART, VGA, channel tuning...

I can't find technical information about it. This is a white brand, I think it is produced by Vestel (Turkey).

I can perform multimeter measurements (to dispel some doubts), but I don't have an oscilloscope, and I don't have technical skills to perform component exchange/soldering. There is also no store to perform this kind of service nearby.

SO, which PCB do i need to change? (if it's worth it).

where can i find the replacement parts in Europe?

Here are the references found inside:

PSU:
VESTEL 17IPS72
Part Number (SKU) 23332051
PCB corner 190216R3A

Main:
VESTEL 17MB120
Part Number (SKU) 23411071
PCB corner 040316R2A

LCD Panel:
Part Number (SKU): VES490QNDS-2D-U11
other info in white label: 23342328, 23333030

COF IC & PCB:
Part Number (SKU): LSC490FN02-L01
16Y-49XSR2LV0.2 (screen PCB RIGHT SIDE)
16Y-49GU11APHTA6XSLVO.3 (screen PCB LEFT SIDE)
NOTE: THIS IS THE T-CON? PCB IS BONDED/INTEGRATED IN THE GLASS

info in metal Back Panel chassis
MB 120 IPS72 SAM UHD
49400 DLED BMS

1- TV reboots fine
2- TV response to remote control
3- TV has sound

note: photos/video/labels attached

Many thanks

[dskall]

Re: KUBO K1249VTSTUHD (49" ultra 4K Smart TV): Screen Problem

Pictures of the problem would help.

[F_Morgado]

Re: KUBO K1249VTSTUHD (49" ultra 4K Smart TV): Screen Problem

Hi,

I have already added two winrar files with the problem videos. can't you open it?

anyway i have now added a picture of the problem "tunning menu". however, the picture does not elucidate the real problem, as it is not a static problem.

thanks

[dskall]

Re: KUBO K1249VTSTUHD (49" ultra 4K Smart TV): Screen Problem

Looks like timing problem. You've cleaned and reseated lvds cable?