Epson Stylus Color 980 Service Manual page 168

EPSON Stylus Color 980
Table 7-8. Connector Pin Assignment - CN12
Pin Signal Name I/O
1 ASF A I/O Phase A Input/Output data
When inputting, connects a current from the
Phase -A to the ground via the coil.
2 ASF B I/O Phase B Input/Output data
When inputting, connects a current from the
Phase -B to the ground via the coil.
3 ASF -A I/O Phase -A Input/Output data
When inputting, connects a current from the
Phase A to the ground via the coil.
4 ASF -B I/O Phase -B Input/Output data
When inputting, connects a current from the
Phase B to the ground via the coil.
Table 7-9. Connector Pin Assignment - CN13
Pin Signal Name I/O
1 +35V O Power supply for driving the fan
2 GND --- Ground
Table 7-10. Connector Pin Assignment - CN14
Pin Signal Name I/O
1 THM1 I Analog signal for the temperature detection of
the heat sink surface on the main board.
2 THM2 --- Ground
Appendix
Function
Function
Function
Connector Summary
Table 7-11. Connector Pin Assignment - CN15
Pin Signal Name I/O
1 GND --- Ground
2 GND --- Ground
3 SW0 I Detects the power SW condition.
4 PSC O Charging voltage to the electrolysis condenser
for the delay control
5 SW1 I Detects the Load/Eject SW condition
6 SW2 I Detects Cleaning SW condition
7 LED0 O Power LED drive signal
8 LED1 O Color ink Near Empty or perfect out LED drive
signal
9 LED2 O Paper Out Error LED drive signal
10 LED3 O Black Ink Near Empty or perfect out LED drive
signal
11 +5V O Power supply for the LED/PE sensor
12 +5V O Power supply for the LED/PE sensor
13 GND --- Ground
14 ASF I ASF sensor condition detection signal
15 PE I PE sensor condition detection signal
16 HP I HP sensor condition detection signal
17 PEVCC O Power supply for the PE sensor drive
18 HPVCC O Power supply for the HP sensor drive
Table 7-12. Connector Pin Assignment - CN16
Pin Signal Name I/O
1 VBB O Power supply voltage for the solenoid
excitation (42V)
2 GND --- Ground
Revision A
Function
Function
164