Epson Photo750 Service Manual page 104

EPSON Stylus Photo 750
Table 7-8. Connector CN9
Pin Signal Name
15 GND
16 NCHG
17 GND
18 VDD
19 GND2
20 GND2
21 GND2
22 GND2
23 COM
24 COM
25 COM
26 COM
27 VHV
Appendix
I/O Function
-- Ground
Out All Head On Pulse Output
-- Ground
--- Logic power supply (+5V)
-- Ground
--- Ground
--- Ground
--- Ground
--- Head Drive Power Supply
--- Head Drive Power Supply
--- Head Drive Power Supply
--- Head Drive Power Supply
--- Head Drive Voltage Control Signal
Pin Signal Name
1
2
3
4
5
6
7
8
Pin Signal Name
1
2
3
4
5
6
7
8
9
10
11
12
Connector Summary
Table 7-9. Connector CN10
I/O
+42V --- Mechanism Drive Power Supply
+42V --- Mechanism Drive Power Supply
GND --- Ground
GND --- Ground
Power Supply Switch Output
PSC Out
Signal
GND --- Ground
GND --- Ground
+5V --- Logic Power Supply
Table 7-10. Connector CN11
I/O
SW2 In Panel Switch on/off (2)
SWO In Panel Switch on/off (0)
PSC In Power on/off switch
SW1 In Panel switch input (1)
LED3 Out LED drive signal (3)
+5V --- Logic power supply
+5V --- Logic power supply
LED2 Out LED drive signal (2)
GND --- Ground
LED1 Out LED drive signal (1)
GND -- Ground
LE0 Out LED drive signal( 0)
Revision B
Function
Function
99