Sent from my iPhone
> On Nov 19, 2019, at 17:07, Chris Zach via cctalk <cctalk@classiccmp.org>
> wrote:
>
> So while trying to figure out this XXDP format error (the FCT Write protect
> enabled one that's stopping me from formatting an RD54) I spent a bit of time
> copying the floppy to a backup disk. My RX50 was *very* flakey, throwing
> errors so I pulled it to see what was up.
>
> Opened the unit and sure enough: The disk head could use a cleaning, and more
> important the little pad on the other side came off when I touched it.
> Apparently the glue holding it in has decayed in the past 30 years. Drat.
>
> Used isopropyl and q tips to clean the heads, then broke a Q tip in half and
> put a bit of cyanacryllic glue on the tip, then transferred it to the pad
> holder, then put the pad back on. Pressed down and breathed on it to give the
> glue some moisture and waited an hour. Did same to other head.
>
> RX50 now works perfectly, and I was able to make and boot a backup. So if
> your RX50 is flakey check to see if the pads are still on the head assembly,
> it's possible it is loose or fell off (if fell off look around in the RX50
> for it, probably in there somewhere)
>
> Never dull. Now to figure out this write protection issue: I have set the
> drive to unit 4 (well 3 in the 0-3 world), set the RQDX3 to pins 1 and 2 on
> the write precomp jumper, and it still comes up but thinks the drive is write
> protected.
>
> Drat.
