jmellidg
Experienced Member
Hi folks,
I have an issue with a computer that I'm revising. It's a Kaypro 2X, with a ROM version 81-478A and motherboard ASSY 81-581. It comes with two DSDD floppys OKI GM3305 HU. I couldn't find anything about these disk drives in the Internet, by the way.
After change a exploded RIFA capacitor, the computer boot, but it can't read the cpm 2.2UL that is the version of cpm for this computer. After a couple of days testing a lot of things and doing a lot of system disks from different images , I manage to boot changing the floppy disk drives ( no one of the two okis work) for a good known toshiba.
As soon as change the drive, it starts at first try.
Well, I'm really surprised, because it seems to me normal that one drive fail, but two?? I've tested the oki drives in a clonic XT but don't work. Do you have any idea about what's going on or do you have any information about the oki drives??
I cleaned the head and try to lubricate the rails, but it's not easy, as you can see in the photo, the rails are inside a cilinder so I can't lubricate without dismount all the mechanism. In 2016 I had the same issue with this computer, but after select the correct version of cpm the computer works.
Thanks for your help
I have an issue with a computer that I'm revising. It's a Kaypro 2X, with a ROM version 81-478A and motherboard ASSY 81-581. It comes with two DSDD floppys OKI GM3305 HU. I couldn't find anything about these disk drives in the Internet, by the way.
After change a exploded RIFA capacitor, the computer boot, but it can't read the cpm 2.2UL that is the version of cpm for this computer. After a couple of days testing a lot of things and doing a lot of system disks from different images , I manage to boot changing the floppy disk drives ( no one of the two okis work) for a good known toshiba.
As soon as change the drive, it starts at first try.
Well, I'm really surprised, because it seems to me normal that one drive fail, but two?? I've tested the oki drives in a clonic XT but don't work. Do you have any idea about what's going on or do you have any information about the oki drives??
I cleaned the head and try to lubricate the rails, but it's not easy, as you can see in the photo, the rails are inside a cilinder so I can't lubricate without dismount all the mechanism. In 2016 I had the same issue with this computer, but after select the correct version of cpm the computer works.
Thanks for your help