Barco DP-1500, Installation Manual

Page: 108 / 162

12. Servicing
12.3.1 Convergence controls
Extended control knobs
As the DMD of the blue channel is not accessible in the projector, the image of this DMD will be taken as reference. Red and green
will be aligned on blue when a small convergence drift is recognized. So, the DMD of the blue channel is
fi xed and can not be
adjusted. The red and green channel are equipped with three extended control knobs for convergence adjustment. The adjustment
knobs are numbered from 1 to 6 and have the same color as the channel which they effect.
1
4
2
5
7
8
7
8
6
3
Image 12-5
1 Red channel, knob number 1.
2 Red channel, knob number 2.
3 Red channel, knob number 3.
4 Green channel, knob number 4.
5 Green channel, knob number 5.
6 Green channel, knob number 6.
7 Convergence lock screws of the red channel.
8 Convergence lock screws of the green channel.
To avoid convergence drift the position of the DMD is fi xed with 4 screws per channel. These screws have to be released to enable
the convergence mechanism.
C
AUTION
:
Do not turn the convergence control knobs prior to releasing the four convergence lock screws.
Neglecting may result in permanent damage of the convergence adjustment mechanism.
104 R59770091 DP-1500 06/01/2009