IBM System/34 Maintenance Manual page 308

""..-
.
(',
~'
c
Stepper Motor Logic
Driver Board
(J2)
P · k M BOB
- IC
er otor
~
(M11-D11) >-----..........-1
N
B09
+
Auto Step 0
--7 >-----eH-~
(M05-D05)
B10
+
Auto Step 1 ~
:>-_ _
~""""__I
(M06-D06)
Bll
+
Auto Step 2
-7
'>-___
~~_4__I
(M07-D07)
B12
+
Auto Step
3--7 ~~---~---~
(MOB-DOB)
B07
- Bed Motor
~ ~-+---f--+-
____
~
(M12-D12)
N
A
N
Stepper Motor
Operating
Voltage
+24 V
(J1-1 )
Stepper Motor
Detent
Voltage
+5 V
(J1-3)
(J3)
2
r---'"
DR
f-----~___4~~
Blue/White
I
DR
DR
White
Blue
1 Red
~----~---~~
t--___________
~5
Red/White
+5V
(J1-3)
(J4)
1- _ _ _ ...1
t--__________
---lf---f~~2
Blue IWh ite
r -----,
Picker/Cam
Motor
Carriage
Bed
Motor
27·275
72MD Diskette Magazine Drive 23
•