LASER EXPOSURE
2-48
A229 SM
2.4.6 LD SAFETY SWITCHES
To ensure technician and user safety and to prevent the laser beam from
inadvertently switching on during servicing, there are two safety switches located at
the front cover. These two switches are installed in series on the LD5 V line coming
from the power supply unit (PSU) through the SBICU board.
When the front cover is opened, the power supply to the laser diode is interrupted.
CN403-1
CN403-3
CN402-3
CN402-4
CN307-2
CN124-3 CN301-8
+5V
PSU
SBICU
LDDR
+5V
LD5V
LD1
LD2
Front Cover
Safety Sw
-1
A229D500.WMF
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