Epson EPL-N1200 Service Manual page 137

Appendix A
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
A-6
Table A-3. CN2 Pin Assignments
Signal Name I/O
SWINT I
GND —
LCDWRX O
LCDCLK O
SWRDX O
LEDWRX O
DB0 I/O
A0 O
DB2 I/O
DB1 I/O
+5 V —
DB3 I/O
DB4 I/O
GND —
DB6
DB5
DOTCLK
DB7 I/O
GND —
RESETX O
GND —
NC —
GND —
HSYNCX I
EPRDYX I
PRDYX I
TODX I
ETBSYX I
STSX I
CMDX O
CTBSYX O
PRINITX O
SRCLKX O
CPRDYX O
GND —
VIDEO O
+5 V —
NC —
GND —
+5 V —
+5 V —
+5 V —
GND —
+5 V —
GND —
+5 V —
GND —
+5 V —
GND —
+5 V —
EPL-N1200 Service Manual
Description
Switch interrupt
Ground
Write strobe to LCD
Clock to LCD
Read strobe to switch
Write enable to LED
Data bus bit 0
Address bus bit 0
Data bus bit 2
Data bus bit 1
+5 VDC
Data bus bit 3
Data bus bit 4
Ground
Data bus bit 6
Data bus bit 5
Clock to LCD
Data bus bit 7
Ground
Reset signal
Ground
Not connected
Ground
HSYNC for Main I/F
Engine controller ready
Print ready
Main request
Engine controller busy
Status transfer
Command transfer
Main controller busy
Print signal
Serial transfer clock
Main controller ready
Ground
Video signal
+5 VDC
Not connected
Ground
+5 VDC
+5 VDC
+5 VDC
Ground
+5 VDC
Ground
+5 VDC
Ground
+5 VDC
Ground
+5 VDC
Rev. A