500 and color

[Kolvir]

I have a Amiga 500 that I am trying to get cleaned up to sell.

I am only getting monochrome on the Magnavox Color display it came with. Is there some setting somewhere that I need to change, something simple I could be missing? I have it hooked up to the RGB out, but were there any monochrome only video cables that used the same port and looked similar to the color ones?

Thank you.

[Kolvir]

How can I tell? Wouldn't the video not work at all if that were the case?

[Kolvir]

Yes it is a 23 to 9 pin cable, but I'm thinking now that there is something wrong with it. On the 23 pin side there are screws to open it up and once opened I counted 9 wires plus the ground, but only 5 are connected.

brown to 13
orange to 3
yellow to 4
green to 5
purple to 10

white, blue, red and black are not connected, and are much shorter, there are no solder points on any other pins. Do I have something besides a Amiga video cable here? Is it possible to solder the unconnected wires to get a working cable? Thanks for the help so far, I'm pretty Amiga ignorant, though I remember that I would have given my left arm to have a 500 when I was a kid, stuck on a C64 up into the early 90s.

[Kolvir]

I'd bet I'd be better off by getting a new video cable, but seeing as I am interested in getting this computer to work only to sell, I don't want to invest much. Where can I get one on the cheap?