Epson Stylus Photo 720, Service Manual

Page: 123 / 154

EPSON Stylus Photo 720 / EPSON Stylus Photo EX3 Revision A
Appendix Connector Summary 123
Table 7-4. Connector CN6
Pin Signal Name I/O Function
1 ASF In Sensor detect signal
2 GND --- Ground
3 ASFV --- Sensor power supply
Table 7-5. Connector CN7
Pin Signal Name I/O Function
1 PFA Out Phase drive signal (A)
2 PF-A Out Phase drive signal (-A)
3 PFB Out Phase drive signal (B)
4 PF-B Out Phase drive signal (-B)
Table 7-6. Connector CN8
Pin Signal Name I/O Function
1 GND --- Ground
2 GND --- Ground
3 GND --- Ground
4 LAT Out Serial data latch signal
5 GND --- Ground
6 CH Out MS/VS trapezoid waveform select signal
7 GND --- Ground
8 VDD Out + Nozzle selector 5V power supply
9 GND --- Ground
10 VHV Out + Nozzle se42V power supply
11 GND2 --- Ground
12 GND2 --- Ground
13 GND2 --- Ground
14 COM Out PZT drive signal
15 COM Out PZT drive signal
16 COM Out PZT drive signal
Table 7-7. Connector CN9
Pin Signal Name I/O Function
1 NCHG Out All nozzle drive signal
2 GND --- Ground
3 SCK Out Serial data clock signal
4 GND --- Ground
5 SP Out CH signal select signal
6 SI6 Out Serial data
7 SI5 Out Serial data
8 SI4 Out Serial data
9 SI3 Out Serial data
10 SI2 Out Serial data
11 SI1 Out Serial data
12 GND --- Ground
13 GND --- Ground
14 THM In Head temperature signal
15 COC In Color ink cartridge sensor signal
16 COB In Black ink cartridge sensor signal
Table 7-6. Connector CN8
Pin Signal Name I/O Function