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LASER EXPOSURE
LD Safety Switches
C N 5
-5, 11
Switch
PSU
The front door switch ensures that the laser beam does not accidentally switch on
during servicing, while the front door is open. These switches are installed in series
on the LD 5V line coming from the power supply board (PSU).
When the front cover is opened, the power supply to the laser diode is interrupted.
C N 2 0 9
C N 2 1 3 - 2
-5, 11
C N 2 1 0
-6
C N 2 1 0 - 7
Front
Door
I/O
Control
Board
CN1-23, 25, 27, 29
C N 6 0 3 - 5
C N 6 0 5
-2, 4, 6, 8
Current
Control
IC
LD Main
Control
LD Drive Board
Board
2-64
24 February, 1999
L D
P D
A259D500.WMF
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