Teac FD-55B Floppy Oddity

From: Stan Barr <stanb_at_dial.pipex.com>
Date: Wed Feb 27 03:28:52 2002

Hi,

ard_at_p850ug1.demon.co.uk (Tony Duell) said:
> >
> >
> > My Otronas have FD-55B-01-U drives in them. I thought the drives were
> > fried, since they wouldn't work on the Otrona nor on the PC, but in dinking
> > around, I determined that on at least one drive (and probably the other),
> > the head load solenoid is not pulling in. I see power being applied, but it
> > only looks like +5V.
> >
> > I don't have schematics, and I'm not ready to risk wrecking the drives
> > determining the following question: Should the solenoids pull in on +5 or
> > +12? If I'm seeing +5, I suspect the solenoid driver transistor could be
>
>
> I am not sure quite which version my schematic applies to (it says
> 'FD55(L)' on it), but it appears the head load solenoid pulls in on 12V
> and holds on 5V.

According to the data I have, that's true for FD55A to F also.

Typically 200mA at 12V then 85mA at 5V if that's any help.


-- 
Cheers,
Stan Barr  stanb_at_dial.pipex.com
The future was never like this!
Received on Wed Feb 27 2002 - 03:28:52 GMT

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