Hey all, I've just recently started collecting some of the computers that were around in the early to mid 80's, in particular those that my young, closed mind (I was an Atari computer fanatic back then) sadly kept me away from.
I have a fairly pristine 64K model 4 ( some shots here: https://www.instagram.com/p/CSfThbNBZil/ ) with dual drives. First, I am a software engineer, not a hardware engineer. I do my best, but lack some of the foundations that might make me more adept at repairing these wonderful machines.
I recapped the power supply, and did a thorough cleaning of all inside and outside surfaces. Drive 0 lights up and spins, but never seemed to recognize a disk. Then for some reason I decided to put some downward pressure on the upper spindle (the whole mechanism actually), and amazingly it started recognizing and reading disks. But only when I put this pressure on the closing mechanism that the top spindle is attached to. I can only do this of course when the case is off.
Looking at the mechanism it is not clear to me if there is a mechanical adjustment I can make to help with this? I've tried reading through any relevant service bulletins I could find, etc.
Has anyone had this issue, and if so found a way to remedy it?
Thanks,
Ron
I have a fairly pristine 64K model 4 ( some shots here: https://www.instagram.com/p/CSfThbNBZil/ ) with dual drives. First, I am a software engineer, not a hardware engineer. I do my best, but lack some of the foundations that might make me more adept at repairing these wonderful machines.
I recapped the power supply, and did a thorough cleaning of all inside and outside surfaces. Drive 0 lights up and spins, but never seemed to recognize a disk. Then for some reason I decided to put some downward pressure on the upper spindle (the whole mechanism actually), and amazingly it started recognizing and reading disks. But only when I put this pressure on the closing mechanism that the top spindle is attached to. I can only do this of course when the case is off.
Looking at the mechanism it is not clear to me if there is a mechanical adjustment I can make to help with this? I've tried reading through any relevant service bulletins I could find, etc.
Has anyone had this issue, and if so found a way to remedy it?
Thanks,
Ron