Canon Pixma MP530 Service Manual page 84

CN904 (for PictBridge)
No. Signal name
1 +3.3V
2 UH1DP
3 UH1DM
4 PPON
5 OCI
CN907 (Scanner Open Switch)
No. Signal name
1 SCAN_OPEN
2 GND
CN908 (for Speaker control)
No. Signal name
1 RX
2 SPSEL2
3 SPSEL1
4 SPSEL0
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<Part 3: 3. CONNECTOR LOCATION AND PIN LAYOUT; 3-3. NCU Sub Board>
VCC 3.3V
PictBridge D+ signal
PictBridge D- signal
PictBridge VBUS power supply
Over current detect signal
Scanner open signal
Ground
Line monitor signal
Volume control signal 2
Volume control signal 1
Sound source select signal (Keypad/Alarm or Line monitor)
3-11
Function
Function
Function
Input / Output
IN
BUS
BUS
IN
OUT
Input / Output
IN
-
Input / Output
IN
IN
IN
IN
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