CX20185 Data sheet

[Bruno]

Trying to repair (!) an old 5 inch floppy drive, I need the data sheet of the R/W IC CX20185 from Sony.
Can anyone help me?
Tnx
Bruno

[vtech]

That is a real old one.
If I remember correctly, Sanyo & Motorola semiconductor had a substitute that was used on many of the drives. Perhaps you may be able to get more help on any of the commodore 64 forums? Not sure if the datasheet is still available but search for LA8200 (Sanyo) or (Motorola) MC28719.

[Bruno]

Tnx vtech,
in fact I just found the LA8200 Sheet, but it was like an old photocopy!
Many companies SELL CX20185, nobody seems to have ds.
As you suggest, I will look at Commodore

Cheers
Bruno