Epson Perfection 3200 Photo Service Manual page 67

EPSON Perfection 3200 Photo
Table 7-5. Main Board CN7
Pin No.
1
2
3
4
Table 7-6. Main Board CN8
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Appendix
Signal I/O
A O
B O
AX O
BX O
Signal I/O
GND –
OP-LED I
ERR-LED I
PM-SW I
PWA-SW I
PWA-CTAL O
+5 I
+5 I
GND I
GND –
+24 I
+24 I
GND –
+12V I
Pin No.
1
2
3
4
5
6
7
8
01
02
03
Table 7-8. Power Supply Board CN1
Pin No.
1
2
Table 7-9. Power Supply Board CN102
Pin No.
1
2
3
4
5
6
Connector Layout
Table 7-7. Main Board CN9
Signal
GND
GND
+24
LOD
GND
RXD
TXD
SCK
01
02
03
Signal
AC (H)
AC (L)
Signal
OP-LED
ERR-LED
PUSH-SW
SW-SENS
PSC
GND
Revision A
I/O
–
–
O
O
–
I
O
O
–
–
–
I/O
I
I
I/O
O
O
I
I
O
–
62