Medion MD32190 small vertical lines

Dieke — Tue, 18 Feb 2025 14:08:36 GMT

I have a 65"md32190 which had a broken back-light.

I replaced the backlight and that works great again exept i got very thin (grey)smal horizontal lines in my screen now ....

does anyone know what i didt wrong or what can cause this problem ...ribboncables , wrong placement of the polarizing screens ??? pls help

Re: Medion MD32190 small vertical lines

Igor28 — Fri, 21 Feb 2025 16:47:26 GMT

Hi @Dieke ,

This issue could be caused by several factors, and I can guide you through some potential causes and solutions:

Possible Causes for Horizontal Lines:

Loose Ribbon Cables: Ensure all ribbon cables are securely connected.
Damaged Ribbon Cables: Check if any ribbon cables are damaged from the backlight replacement.
Misaligned Polarizing Film: Make sure the polarizing screens are aligned correctly.
Backlight Diffuser Issues: Verify the backlight diffuser and LED panel are aligned properly.
Faulty T-Con Board: If the T-Con board is not working, it could cause lines.

Quick Fixes:

Recheck Connections: Double-check all connections and ensure they are secure.
Align Components: Ensure the polarizing film and backlight are aligned correctly.
Adjust Settings: Try adjusting the brightness and backlight settings.

If none of these solutions resolves the issue, there might be an underlying issue with the display panel itself, or the repair process may have inadvertently caused some damage.

Kind regards

topic Re: Medion MD32190 small vertical lines in Video

Medion MD32190 small vertical lines

Re: Medion MD32190 small vertical lines

Possible Causes for Horizontal Lines:

Quick Fixes: