Screen turned brighter all of a sudden

[BanjoBanana]

I am using my XOSVP for quiet a while now and i am enjoying it very much so far. After a few weeks of usage my screen turned brighter all of a sudden without any reason.

At the beginning i was able to get rid of the problem by bending the video cable a bit or by touching, which doesn‘t make any sense for me. But that worked only for a few seconds. The screen did not get any darker ever since.

I double checked every connection from AV-connector to the board. Everything seems fine. There are no solder bridges or anything. I am using an OSSC and a mClassic to get a crisper image. I haven‘t got any issues whatsoever.

What could cause this problem so that at least i know where to search? Have you ever encountered an issue like this? I would appreciate your help very much and keep up the good work!

Best regards