Epson PH890 Service Manual page 170

EPSON Stylus PHOTO 890/1290
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
Table 7-6. Connector Pin Assignment - CN11
Pin
6
7
8
9
Table 7-7. Connector Pin Assignment - CN12
Pin
1
2
3
4
5
Table 7-8. Connector Pin Assignment - CN13
Pin
1
2
Table 7-9. Connector Pin Assignment - CN14
Pin
1
2
Connector Summary
Signal Name I/O
SW1 I Switch input
PSC I Power switch
SW0 I Switch input
SW2 I Switch input
Signal Name I/O
GND -
Ground
ENB I
Rotary encoder Phase B output
VCC - +5V
ENA I
Rotary encoder Phase A output
GND -
Ground
Signal Name I/O
PF-A O PF motor Phase A
PF-B O PF motor Phase B
Signal Name I/O
CR-A O
CR motor Phase A
CR-B O
CR motor Phase B
Revision B
Function
Function
Function
Function
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