Commodore 128 has no color.

[GoodNoodle]

Hey, guys!
I've bought 2 commodore 128 on an auction a couple of years ago, but after buying them I got depressed and stacked them away in the basement. Now I've found them again and brought one of them up. It is in very good condition, but it won't give off any color. I've heard it can have something to do with the connections to the motherboard, but I've no Idea.
Does anyone know, how I can fix it?

[famifan]

https://www.youtube.com/watch?v=lXlblGvNtOs i can only suggest this video

[Arkanix38]

Need more information, what kind of display and cable are you using?

[GoodNoodle]

It's a newer Monitor from Denver. I'm using AV to connect it.

[Great Hierophant]

If your C128 is a PAL/50Hz unit, I wouldn't expect any color from a Monitor from Denver, Co., which is a NTSC/60Hz country.