Epson Stylus PHOTO 890 Service Manual page 168

EPSON Stylus PHOTO 890/1280/1290
Table 7-5. Connector Pin Assignment - CN9
Pin Signal Name
1 SI6
2 SI5
3 SI4
4 GND
5 SCK
6 GND
7 CH
8 COC
9 RXD
10 COB
11 TXD
12 VDD3.3
13 GND
14 COM
15 GND
16 COM
17 GND
Table 7-6. Connector Pin Assignment - CN11
Pin Signal Name
1 SW2
2 LED0
3 GND
4 VCC
5 LED3
APPENDIX
I/O Function
O Head data
O Head data
O Head data
- Ground
O
- Head NCHG
O Ground
I Clock
O Ground
I SP signal
I Head data
- Head data
- Head data
- Head data
- Head data
- Head data
- Ground
I/O Function
I Switch signal input
O LED output
- Ground
- +5V
O LED output
Connector Summary
Table 7-6. Connector Pin Assignment - CN11
Pin Signal Name I/O
6 SW1 I
7 PSC I
8 SW0 I
9 SW2 I
Table 7-7. Connector Pin Assignment - CN12
Pin Signal Name I/O
1 GND -
2 ENB I
3 VCC -
4 ENA I
5 GND -
Table 7-8. Connector Pin Assignment - CN13
Pin Signal Name I/O
1 PF-A O
2 PF-B O
Table 7-9. Connector Pin Assignment - CN14
Pin Signal Name I/O
1 CR-A O
2 CR-B O
Revision C
Function
Switch input
Power switch
Switch input
Switch input
Function
Ground
Rotary encoder Phase B output
+5V
Rotary encoder Phase A output
Ground
Function
PF motor Phase A
PF motor Phase B
Function
CR motor Phase A
CR motor Phase B
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