> Van: Philip A. Bernard, MD <philb@gte.net>
> Aan: PICLIST@MITVMA.MIT.EDU
> Onderwerp: stepper motor
> Datum: donderdag 25 juni 1998 16:50
>
> I've gotten a hold on some Sanyo-Denki step-syn stepper motors from an
> old dot-matrix printer.  ANY information on the schematic for the
> 103G770-2513 would be appreciated (6 wires). I've tried the web site and
> couldn't find anything useful.  Also, are these motors worth anything?
> I can get a lot of them.
>
> Thanks in advance,
>
> Phil Bernard

Hello Phil,

I think you have got a 4-coil stepper motor.  At least if those 6 wires are
coming outof the stepper-motor.  Coil #1 is connected to coil #2 and Coil
#3 is connected to coil #4.  So, you have got two pairs of three wires
coming from two pairs of coils.  Connect the middle wires (comming from the
junctions between coils 1 & 2, 3 & 4) to VCC.  Now put the wire comming
from coil #1 to GND. Disconnect it and put  the wire comming from coil #3
to GND.  Disconnect and repeat for coils 2 & 4.  Repeat with coil 1 & 3 and
so on.  The stepper motor should rotate.  If not, switch wires 1 & 2 _or_ 3
& 4.

Greetz,
  Rudy Wieser