Canon imageRUNNER 2270 Service Manual page 216

Chapter 6
iR3570/iR4570
[1]DC controller PCB
[2]Laser driver PCB
[3]Scanner motor PCB
[4]BD PCB
Single
VDO1
CNT0
6-4
[1]
FG PULSE DETECT
Description
Image data single input
Laser driver control signal
VDO1
GND
/VDO1
CNT0
CNT1
CNT2
/VDO2
GND
VDO2
GND
+5V
PWCHG
STAND BY
POLYGON FG
+24V
P ACC
P DEC
GND
+3.3V
BD
GND
F-6-3
T-6-6
[2]
[3]
[4]