OmniSistem Q Beam - Manual (Page 10)

Q-Beam Operations Manual – 22-100002-01 – Rev 1 – 12-17-1999
Page 10
Cleaning the Q-Beam
Before beginning any service to the unit, be sure that AC power has been turned off and
power cords removed. Hazardous voltages may be present inside the enclosure, even
with the power off!
Laser diodes are VERY sensitive to Electrostatic Discharge (ESD). During any cleaning
operations, take extra care not to contact with any of the electronics, lasers, or connectors
in the system. You can easily store over 3000 volts on your body, and transfer it to innocent
components without your knowledge!
To clean the optical components, use a cotton swab with a wood or paper stem (not
plastic) and reagent grade acetone. Do NOT use acetone from the hardware store, this is
NOT the same! Take an eyedropper and put 3 drops of acetone onto a swab, then shake
the swab to remove excess acetone. Draw the swab across the optical component being
cleaned. Do not use too much pressure. As the swab moves from the left to the right side
of the optical component, twist the swab with a clockwise rotation. A clean part of the swab
is then always in contact with the optical component. The dirty part of the swab is rotated
away from the glass. If the swab is rotated all the way around before the optical component
is clean, discard the dirty swab and finish cleaning with a new, clean swab. Never use a
swab on more than one optical component. Each pass across an optical component
necessitates a fresh, clean swab. Check to make sure you have a clean wipe with no
streaks or residue left on the optical component. Clean all optical components that appear
dirty.
Please do NOT re-use swabs.
Optical Alignment of the Q-Beam
Optical alignment of the Q-Beam consists primarily of adjusting beam convergence. This
can be accomplished simply by using a small, lightweight flat head screwdriver, and
inserting it into the two alignment holes in the top of the Q-Beam.
Remove the small plastic caps on the top and side of the projector.
In the Test/Align menu put the Q-Beam into align mode.
Once in the align mode the lasers are emitting inside the projector. Use the X/Y alignment
screws making small adjustments until the laser beam is centered in port#1, after this
process is done the other 9 ports are aligned.
Exit out of the Test/Align menu, replace the plastic caps and resume normal control.