After discovering my old Commodore 64 in the garage, I wanted to test if it still works. The power light comes on but the video connection to a modern TV is obviously an issue, as mentioned here. Well I bought this cable from ebay, and although it is red and white, it is sold as an audio/video cable, and not just audio. But I'm not picking up a signal, so either the item was misleading in its description of video, or my commodore 64 isn't working. Does anybody have experience with this cable?
(source: ebayimg.com)
Thanks for everyone's contribution on this. So based on the C-64 AV jack pinout as provided by Janka, each pin was tested using a multimeter to see which pin may be connected to which colour lead, and it seems red is video and white is audio. I think this confirms Brian's suspicion that the cable is OK, and I remember basing my purchase on similar ideas. Hence it does seem most likely that there is an issue with my C64 video. I can actually hear a faint sound when I turn it on, so the audio may be OK. Of course it's difficult to say definitively without having a working C64, but currently I'm going through some options, including all those suggested by Brian.