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Controlling the Laser Activation Timing
Laser ON/OFF Control
Laser ON/OFF control is dependent on the combination of the laser control signal (A/B laser: CNT1-0/1-1/1-2, C/D laser: CNT0-0/0-1/0-2) from the image PCB.
NOTE:
Because iR4025 is a 2 beam, the CD laser becomes the same control as an A B laser.
<A laser/B laser>
Laser control signal
Laser status
CNT1-2
CNT1-1
CNT1-0
A Laser
B Laser
0
1
0
ON (For APC control)
OFF
0
1
1
OFF
OFF
0
0
1
OFF
ON (For APC control)
0
1
1
OFF
OFF
1
1
1
Video signal entry arrowed
Video signal entry arrowed
0
1
1
OFF
OFF
0
0
1
OFF
ON (For APC control)
0
1
1
OFF
OFF
<C laser/D laser>
Laser control signal
Laser status
CNT1-2
CNT1-1
CNT1-0
C Laser
D Laser
0
0
1
ON (For APC control)
OFF
0
1
1
OFF
OFF
0
1
0
OFF
ON (For APC control)
0
1
1
OFF
OFF
1
1
1
Video signal entry arrowed
Video signal entry arrowed
0
1
1
OFF
OFF
0
0
1
OFF
ON (For APC control)
0
1
0
OFF
OFF