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Appendix
SNLUS
800 Service Manual
Table A-1. Connector Summary
Board
Location
Pin
Description
Cl 06 MAIN
CN1
36 pins
Centronics
parallel l/F
CN2
12
HEAD-1 (to
printhead
unit)
CN3
12
HEAD-2 (to
printhead
unit)
CN4
2
PE sensor
CN5
6
PF motor
CN6
5
CR motor
CN7
4
PS line (to
C106
PSB/PSE)
CN8
18
Panel control (to Cl 06
PNL)
Cl 06 PSB/PSE
CN1
2
AC Input
(UN)
CN2
4
DC output (to Cl 06 MAIN/Printer mechanism)
C106
PNL
CN1
18
(to Cl 06 MAIN)
Table A-2. Connector
Pin Assignment -
CN1
Pin
I/o
Name
Description
1
I
STB STROBE signal
2-9
I
DO-D7
Parallel data
(DATA1
-
DATA8)
10
0
ACK
ACK
signal
11
0
BUSY
BUSY signal
12
0
PE PAPER-END signal
13
0
SLCT
Printer SELECT signal
14
I
AFXT
AUTO LINE-FEED signal
15
.
NC
No connection
16
GND
Ground
17
.
GND
Ground
18 NC
No connection
19
.
GND
Ground
20-30
-
GND
Ground
31
I
INIT
Printer INITIALIZE signal
32
0
ERR ERROR signal
33
- -
Not
USed
34
. .
Not
Used
35
.
Not used
36
I
SLIN
Printer SELECT signal
Table A-3. Connector Pin Assignment -
CN2
I
Pin
I
I/o
I
Name
I
Description
{-’-”
1-6
-
VH
Printhead
drive voltage (VH)
7-12
-
GND
Ground
4
1
.,
A-2
Rev.
A
I