External Floppydisk "Problem" / Question

[McBierle]

Hello,

I have an external Floppydrive for an Amiga 500. It is working; the mainparts are in the pictures.
Now i wanted to connect another drive to it instead of the drive seen in the pics. I modified three different drives as described on the net (The usual changing to RDY, getting DC on pin 2 and setting to DS0). Non are working.

Am i missing something?

IMG_20210123_115820.jpg

IMG_20210123_115801.jpg

IMG_20210123_115756.jpg

[McBierle]

If anyone might be interested, i posted this question also in another forum, and ther conclusion was this:

"Thanks for the answers. Fresh day and i tried some stuff.
I tried all drives as internal and as external. While doing that i found that one drive was dead and i forgot a jumperbridge on another (mitsumi D359T5)


Results:
Chinon FB-354, the "original" internal drive: only internal
Matsushita JU-255, the original external one: internal and external
Mitsumi D359T5: internal and external (the one with the forgotten solderbridge )
Chinon FZ-357: only internal
Mitsumi D359T3: defective


So i have what i want, two working as external. But i wonder why the other only work as internal...


Greetings... "