26 Feb
2002
26 Feb
'02
7:28 p.m.
Hi,
ard(a)p850ug1.demon.co.uk (Tony Duell) said:
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(a)dial.pipex.com
The future was never like this!
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.