Philips 9890 010 83921 Service Manual page 26

ADJUSTMENTS
1.4. Laser alignment
Note
Check the alignment of the laser light with the collimator
light field. If the laser light is not centered to the
collimator light, proceed with the following steps:
S Position the control handle on α = 0˚ position, the
LED (1) = ON.
S Remove the control handle grip (2) on the rearside
by loosening screws and nuts
1.4.1. Center laser alignment
S Press button (1)
-- The center laser and the diaphragm light are ON.
S Raise the table top up and down.
S Observe the center laser light on the table top.
-- If the beam wanders (2), rotate the control
handle by loosening four screws (3) on the
rear side
S Tighten screws, then repeat procedure.
Fine Adjustment:
S Loosen the two fixing screws (4) of the center laser.
S Adjust the laser.
S Tighten the two fixing screws (4).
6--2
2
(04.0)
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6_Adjustments