Chapter 17 CPU Board
17.6:6 Stepper Motor Drives
138
IC400
ST3–ENG1
8
AOUT
PHASE
ST1–ENG1
9
BOUT
I1
ST2–ENG1
7
EMITTER
I0
+5V
11
VM
VR
VM
GND
2
GND
TIMING
10
GND
CURRENT
GND
C400
PBL3770
GND
IC401
ST6–ENG1
8
AOUT
PHASE
ST4–ENG1
9
BOUT
I1
ST5–ENG1
7
EMITTER
I0
+5V
11
VM
VR
VM
GND
2
GND
TIMING
10
GND
CURRENT
GND
C404
PBL3770
GND
IC403
ST3–ENG1
8
AOUT
PHASE
ST1–ENG1
9
BOUT
I1
ST2–ENG1
7
EMITTER
I0
+5V
11
VM
VR
VM
GND
2
GND
TIMING
10
GND
CURRENT
GND
C406
PBL3770
GND
IC405
ST6–ENG1
8
AOUT
PHASE
ST4–ENG1
9
BOUT
I1
ST5–ENG1
7
EMITTER
I0
+5V
11
VM
VR
VM
GND
2
GND
TIMING
10
GND
CURRENT
GND
C408
PBL3770
GND
Intermec EasyCoder 501 – Service Manual Ed. 7
15
1
16
14 V40
3 V40
13
12
5
4
GND
C401
15
1
16
14 V40
3 V40
13
12
5
4
GND
C405
15
1
16
14 V40
3 V40
13
12
5
4
GND
C407
15
1
16
14 V40
3 V40
13
12
5
4
GND
C409
P400
1
2
3
4
5
6
7
8
P401
1
2
3
4
5
6
7
8
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