Canon PIXUS 50i Service Manual page 35

J203 (USB/DC board I/F)
No. Signal name
1 GND GND
2 Vbus Cable power supply
3 D- Data signal line
4 D+ Data signal line
J205 (Coin battery unit I/F)
No. Signal name
1 Vdd Real Time Clock (RTC) drive power supply
2 GND GND
J301 (LF motor I/F)
No. Signal name
1 LFB- LF motor phase B-
2 LFA- LF motor phase A -
3 LFB LF motor phase B
4 LFA LF motor phase A
J302 (ASF/PG motor I/F)
No. Signal name
1 APB- ASF/PG motor phase B-
2 APA - ASF/PG motor phase A -
3 APB ASF/PG motor phase B
4 APA ASF/PG motor phase A
J303 (CR motor I/F)
No. Signal name
1 CRA Carriage motor phase A
2 CRB Carriage motor phase B
J304 (Door sensor board I/F)
No. Signal name
1 PWC_SENS PG sensor drive power supply
2 GND GND
3 DOOR Door sensor detection signal
4 SENS_PG PG sensor detection signal
Function
Function
Function
Function
Function
Function
3 - 4
Input/Output
IN
I/O
I/O
Input/Output
IN
Input/Output
OUT
OUT
OUT
OUT
Input/Output
OUT
OUT
OUT
OUT
Input/Output
OUT
OUT
Input/Output
OUT
IN
IN