Intermec EasyCoder 501 Service Manual page 88

10.9 Connection
Board, cont.
+5V
P1
1 GND
2 +5V
3 LIFT_HEAD
4 NOT_RUN
5 EN_ENG2
6 RS_IDENT
7 ST1
8 ST2
9 ST3
10 ST4
11 ST5
12 ST6
13 GND
14 GND
15 V24
16 V24
C5
+5V
P4
2
4
1
3
R15 C10
R16
8
DRC SWC
7
CL-
MC34063
V24 6
CL+
3
TC
C8 C11
Intermec EasyCoder 501 – Service Manual Ed. 7
+5V
C1 C2 C3
V40
C6 C7
IC4A
LIFT_HEAD 1
=1
3 NOT_RUN
POSITION 2
+5V
74HC86
1
C12 C9
SWE 2
GND 4
CIN 5
IC5
GND
Connection Board 1-040702-28; Circuit Diagram
EN_ENG2 11 CLK
C4
GND 1
ST6 2
ST5 3
ST4 4
IC4C
9
=1
ST3 5
8
10
ST2 6
ST1 7
74HC86
GND 8
IC4D
12
=1 9
11
13
74HC86
R6
IC4B
4
=1
6
5
R5 Q3
74HC86
ST3_ENG2 8
PHASE
ST2_ENG2 9
I1
V40
ST1_ENG2 7
I0
+5V 11 VR
2
TIMING
10 CURRENT
C13
ST6_ENG2 8
PHASE
ST5_ENG2 9
I1
ST4_ENG2 7
I0
+5V 11 VR
2
TIMING
10 CURRENT
C14
Chapter 10 Ribbon Save Device
74HC573
OE
19 ST6_ENG2
D
18 ST5_ENG2
D
17 ST4_ENG2
D
16 ST3_ENG2
D
15 ST2_ENG2
D
14 ST1_ENG2
D
13
D
12
D
IC1
V40
Q2
DC MOTOR
P3
2
1
Q1
PBL3717
15
AOUT
1
BOUT
16
EMITTER
14 V40
VM
3 V40
VM
13
GND
12
GND
5
GND
4
GND
IC2
C15
PBL3717
15
AOUT
1
BOUT
16
EMITTER
14 V40
VM
3 V40
VM
13
GND
12
GND
5
GND
4
GND
IC3
C16
STEPPER MOTOR
P2
1
2
3
4
5
6
7
8
87