Service and maintenance
21
3. Strike the lamp and open the shutter.
4. Set zoom to wide so that it is easier to see any
unevenness in the projection.
5. Aim the fixture at an even surface, using either
the manual pan and tilt commands in the
fixture’s control panel or a DMX controller. Make
sure that no further commands can be sent by
DMX while you are working.
6. Remove the fixture’s rear cover as described
under “Lamp replacement” on page 18. You now
have two minutes before the fixture shuts down
power to the lamp as a safety precaution
because the rear cover fan is disconnected.
7. See Figure 15. Turn the two Torx 20 lamp
adjustment screws
A
for vertical adjustment and
B
for horizontal adjustment until you obtain the
most even projection.
8. Shut down power to the fixture.
9. Reinstall the rubber lamp compartment seal, rear cover safety wire, rear cover fan connector and rear
cover using “Lamp replacement” on page 18 as a guide.
10. If you have not been working in dry conditions (relative humidity <50%), reduce internal condensation by
carrying out the de-humidifying procedure described in the next section.
11. To make sure that the fixture is correctly resealed to its original IP65 level, carry out a vacuum test as
described in “Dehumidifying the fixture” on page 15.
Figure 15: Lamp adjustment screws
A
B
