Snogpitch wrote:
> I've had reading problems with my 1541-II over the years. Every time it was
> because the pressure of the read head was not getting adequate contact on
> the surface of the disk. Lightly bending the lever mechanism to allow
> greater pressure restores reading functionality unit it is needed to be
> done again in a few years.
nice tip! Thanks, I'll try tomorrow. I spent the last two days fixing two
SX-64 drives, both with only mechanical issues. One had a lazy belt and needed
real cleaning and one needed only cleaning but I forgot to check the spindle
speed before burying again into the worst SX-64 version that you can encounter
in your life :(
One SX-64 version has 4 screws to remove the whole FD+box stack without
touching almost anything else (well you need to unscrew the cartdrige
connector too).
Another version requires you to almost remove everything to unscrew the 4
drive screws and this includes: monitor, bottom cover, all cables from
motherboard plus VIAs board, motherboard and VIAs board (of course),
power supply, cartdrige connector. Oh, and once you finally remove the screws,
you understand that you need to remove the whole front panel too.
I'm not going to do it again, it will be a marginal FD for ever.
> An easy way to check if this is your problem is to try to read the directory
> with your finger lightly pressing on the drive head. If it reads, the that's
> your problem.
Great, thanks again. I was suspecting the power supply since I see some line
frequency noise on the spindle waveform, but I hadn't the correct connector
to make a compatible (and serious) power supply, so I left it alone.
I hope it's really this mechanical tip as it was reading fine for one day
however.
Best of everything
Frank IZ8DWF
--- SoupGate-Win32 v1.05
* Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3)
|
