Hi everybody.
I have been trying to adapt a Chinon FZ-357 (PC drive) to my miggy, but it apparently was one of the non-compatible ones. The DC seemed to be not working. Well I refused to believe that the conversion was impossible as widely said, and started to study the drive :inquisitive: . When "jumped" and attached to the Amiga, it didn't even emmited the charming click. What came to my mind was that the DC was not connected. Then I made a kludge: I cut the tracks of the density selection switch and shorted them (always DD), and connected the switch to the GND and DC pins on the connector. Voila - the drive now works :-D . But it is still behaving strange - when the Amiga is turned on, the drive seeks for a disk for some time (as if DC indicates disk in), and gives up, without clicking. If I insert a pen inside the drive and make a single push in the button, the drive starts clicking. What have I done wrong? Yes, I haven't used a latch for switch debouncing, could be this the problem or not? The switch seems to be open when the disk is in, is that correct? :headwall: I wasn't able to find info about the convention used for the drive signals, like timings and levels of DC and Ready for instance. If anybody here knows a pointer, I would be enourmosly thankful!
Nibble
