Intermec EasyCoder 501 - Interfaces to Printer Devices

135Intermec EasyCoder 501 – Service Manual Ed. 7
Chapter 17 CPU Board
17.6:3 Interfaces to Printer Devices
1
2
Q2
3
CUT–IN
R17
CUT–OUT
R19
8910
D1
R12
P24
Q1
R20
Q3
LIFT–HEAD
EN–ENG2
RS–IDENT
RN4 1
76543
+5V
+5V
GND
JUM4
GND
JUM3
GND
JUM2
GND
JUM1
OUT4
OUT3
OUT2
OUT1
V24
V24
GND
GND
ST6
ST5
ST4
ST3
ST2
ST1
RS–OK
+5V
GND
RIBBONSAVE
CUTTER
14
13
12
11
10
9
8
7
6
5
4
3
2
1
P9
2
+5V
14
13
12
11
10
9
8
7
6
5
4
3
2
1
P8
16
15
5
4
3
2
1
P6
GND
1
2
3
2
1
3
GND
GND
&
11
12
13
14
15
16
17
18
CSX1
CSX0
CSPANEL
CSDI
IC02C
9
8
10
74HC08M
IC14
9
8
7A1
6A3
5A2
4A4
3RD
2WR
19
1CSBUS
74HC541M
IC11
119AD0
128AD7
137AD1
146AD6
155AD2
164AD5
173AD3
1
182AD4
19CSBUS
1RD
74HC245M
IC06A
128RD
146WR
164A6
182A5
EN
1CSPANEL
74HC241M
IC05
AD8
AD9
AD10
AD11
AD12
AD13
AD14
18
AD15
RD
PANEL INTERFACE
+5V
WR1
1
2
3
AD4*
AD3*
AD5*
AD2*
AD6*
AD1*
AD7*
AD0*
CSX0
CSX1
XINT
WR*
RD*
X0
X1
NMIHPC
+5.3V
GND
/RESET
A4*
A2*
A3*
A1*
GND 26
25
24
23
22
21
I/O INTERFACE
+5V
DI–IDENT
VDISP
ECLK
RESET
BRD
BWR
CSPANEL
GND
GND
*A6
*A5
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
GND
20
19
18
17
14
13
12
11
10
9
8
7
6
5
4
3
2
1
P4
16
15
EN
&
GND
G3
3EN2
3EN1
2
20
19
18
17
14
13
12
11
10
9
8
7
6
5
4
3
2
1
P2
16
15
119
128
137
146
155
164
173
2
19
1
74HC245M
G3
3EN2
3EN1
2
1
&
IC02B
4
6
5
74HC08M
P1
GND
+5.3V +5.3V
3 2 1 4 5 6 7 8 9
10 11 12 13
CSMEM
/RESET
HOLDA
DDIN NADS
GND HBE
RD WR
GND NMI
A17' A18' A19' A20' A21' A22' A23'
CTTL'
23 22 21 20 19 18 17 16 15 14 24 25 26 27 28 29 30 31 32 33
A16' AD15 AD14 AD13 AD12 AD11 AD10
AD9 AD8 AD7 AD5 AD6
35 34
AD0 AD1 AD2 AD3 AD4
40 39 38 37 36
NEXTHOLD
AD0-A15,A1-A20
MEMORY EXPANSION
5
+5V
4322345
11
RN1 RN2