uhm.. just read your post again... So you have a functioning C64c with no sound? Check the fuse in the machine! Check the fuses in the powersupply, if it's the old model powersupply with fuses in them. Alternatively, try a different powersupply.
Oh, and the two remaining breadbins "power up" as they use to say in ebay ads, but the TV screen is just black.
http://www.lemon64.com/forum/viewtopic.php?t=27552&postdays=0&p.. There's a business to do.
Quoting Cresh http://www.lemon64.com/forum/viewtopic.php?t=27552&postdays=0&p.. There's a business to do. ..there's definately a lot of bullshit in that thread.