7. Maintenance
7.8
Realignment of the lamp in its re
fl
ector
Why realigning the lamp ?
With longer run times, the light output of the lamp will decrease, which results in a lower light output on the screen. This light output
decrease can be compensated by readjusting the Z-position of the lamp.
W
ARNING
:
The procedure below may only be performed by “quali
fi
ed service technicians”.
Necessary tools
3mm Allen wrench
How to realign the lamp in its re
fl
ector ?
1. Remove the lamp cover. See "Removal of the lamp cover", page 82.
2. Start up the projector, enter the menu structure and select
Lamp
→
Z-axis
.
3. Loosen the Z-axis lock screw (2).
4. Carefully turn the thumb screw (1) at the rear of the Lamp House clockwise for maximum light output. Once over the maximum,
turn slightly counterclockwise to reach the maximum light output again.
1
2
Image 7-6
Z-axis alignment
5. Secure the Z-axis position by fastening the Z-axis lock screw (2).
6. Switch off the projector, wait
fi
ve minutes and unplug the power cord at the projector side.
7. Install the lamp cover. See "Installation of the lamp cover", page 83.
78
R5905823 HDQ 4K35 30/11/2015
Summary of Contents for HDQ 4K35
Page 1: ...HDQ 4K35 User and Installation manual R5905823 04 30 11 2015 ...
Page 4: ......
Page 58: ...4 Lenses Lens Holder 54 R5905823 HDQ 4K35 30 11 2015 ...
Page 69: ...6 Starting up 6 STARTING UP R5905823 HDQ 4K35 30 11 2015 65 ...
Page 70: ...6 Starting up 66 R5905823 HDQ 4K35 30 11 2015 ...
Page 84: ...7 Maintenance 80 R5905823 HDQ 4K35 30 11 2015 ...
Page 96: ...8 Removal and installation of the projector covers 92 R5905823 HDQ 4K35 30 11 2015 ...
Page 98: ...A Dimensions and specifications 94 R5905823 HDQ 4K35 30 11 2015 ...
Page 108: ...B Environmental information 104 R5905823 HDQ 4K35 30 11 2015 ...