87
Intermec EasyCoder 501 – Service Manual Ed. 7
Chapter 10 Ribbon Save Device
10.9
Connection
Board, cont.
Connection Board 1-040702-28; Circuit Diagram
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
R15
R16
R14
V24
C8
C11
R18
IC5
CIN
5
TC
3
GND 4
CL+
6
R17
MC34063
CL-
7
SWE 2
DRC
SWC
8
1
DR1
BYV27
C10
C6
C1
R2
R1
+5V
+5V
C2
C3
C4
IC4C
9
V40
=1
10
74HC86
C7
IC4D
12
=1
13
74HC86
V40
D1
C12
C9
R19
GND
11
8
GND
ST1
ST2
ST3
ST4
ST5
ST6
GND
EN_ENG2
74HC573
11 CLK
1
OE
2
19 ST6_ENG2
D
3
18 ST5_ENG2
D
4
17 ST4_ENG2
D
5
16 ST3_ENG2
D
6
15 ST2_ENG2
D
7
14 ST1_ENG2
D
8
13
D
9
12
D
IC1
+5V
R4
P4
2
4
LIFT_HEAD
1
POSITION
3
R3
74HC86
+5V
2
NOT_RUN
3
=1
1
IC4A
IC4B
4
=1
6
5
R5
74HC86
Q1
R7
Q3
Q2
R6
V40
DC MOTOR
P3
2
1
R9
C14
+5V
ST4_ENG2
ST5_ENG2
ST6_ENG2
R8
C13
+5V
ST1_ENG2
ST2_ENG2
ST3_ENG2
PBL3717
15
AOUT
8
PHASE
1
BOUT
9
I1
16
EMITTER
7
I0
14 V40
VM
11 VR
3 V40
VM
13
GND
2
TIMING
12
GND
10 CURRENT
5
GND
4
GND
IC2
C15
PBL3717
15
AOUT
8
PHASE
1
BOUT
9
I1
16
EMITTER
7
I0
14 V40
VM
11 VR
3 V40
VM
13
GND
2
TIMING
12
GND
10 CURRENT
5
GND
4
GND
IC3
C16
R13
R11
R12
R10
STEPPER MOTOR
P2
1
2
3
4
5
6
7
8