Can't write to any floppy disk.

[PulsatingQuasar]

I have a strange problem here. I can't write to any floppy disk on an Amiga 1200 here.

Whether I use df0:, df1: or df2: try to format or delete a file. In the end nothing happens. The format on all drives says cilinder 0 can't be formatted.

Copying files or deleting files appears to have worked until you remove the disk and reinsert it. Then nothing has changed.

Am I looking at a defect CIA chip or some other damage?

[PulsatingQuasar]

I don't believe that because that would mean the df1: drive and df2: drive are also broken. That would mean 3 drives having the same problem.

[PulsatingQuasar]

I have fixed the problem.

Not so long ago I already replaced some electrolytic capacitors on the motherboard because they had either started leaking or did not have the black writing on it. I already figured out that the electrolytic capacitors with black writing on it were quite good but the greens and the blue ones are not.

After some measuring I figured out one of the via's had a corroded trace because of this capacitor leakage. I just repaired this trace and now I can write to the diskdrives again.

Another score for me. :-)