Geoff Body wrote:
Matt I had a look at the pictures at that site.http://www.applefritter.com/ node/24372 The motherboard appears to include the function of a Z80 card & 64KB ram. The fact that the computer doesn't appear to turn on without the drive controller card installed makes me think that there is an issue with the power supply. The disk controller card is missing 2 parts 74LS174 & 74LS259 (9334) and should not be installed until the issue with being turned on is resolved.
The original Apple II didn't reset at power on--it had to be reset manually unless a Disk ][ Controller was installed--which did an auto-reset. So, first, try manually resetting the computer: Reset or Ctl-Reset. -michael NadaNet and AppleCrate II: parallel computing for Apple II computers! Home page: http://home.comcast.net/~mjmahon "The wastebasket is our most important design tool--and it's seriously underused."