I had purchased a NTSC A1200 quite a few years ago, and it came with no floppies soi I installed a Gotek as one of the first modifications and then went on from there. It came with a Chinon FZ-354 drive, and I want to get it functional. I had picked up an electonica4u external floppy interface board, and it works with an external Gotek, but the Chinon won't work on there. I decided to put the Chinon back inside the A1200 and it works fine there (reads disks, boots, etc), but when running the Amiga Test Kit read test it tells me that there is no READY signal. I wonder if this is why the Chinon doesn't work on the external adapter board... ?
How to troubleshoot why the Chinon may not be providing a READY signal when mounted internally, or why the computer may not be detecting it? This is badged as "Commodore A1200" so I don't think it is an Escom unit, and the FZ-354 is an Amiga drive, not a PC drive from what I can tell. I did not take the A1200 logic board out to see if there were jumper wires on the floppy port.
Jumpers are on DS0, MM, RDY and TTL pins, everything looks the same as all information I can find online.