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R5905754 /13
DPxK-32B
159
Convergence Test pattern
For the manual correction of the DMD convergence, a typical convergence test pattern is generated. For a 4K
projector, use the 4K test pattern.
Image 12-6: Convergence test pattern
Work Instructions:
•
GREEN and RED DMD
’
s are to be adjusted with reference to the BLUE dmd.
•
Each adjustment allows for approximately 10 pixels (for 2K projectors) or 20 pixels (for 4K projectors)
maximum displacement to either side of the nominal BLUE position
•
Rotation is limited to approxi/- 5pixels on the left screen flank and +/- 5 pixels on the right screen
flank
•
One turn of an adjustment screw relates to an approx. 5-pixel displacement on the screen.
•
Let the projector warming up for 30 minutes, while projecting the convergence test pattern, before starting
to adjust the convergence.
Take Care:
•
In rare cases it can happen that the nominal dmd position falls within a
dead zone
, where the mechanism
changes from a pushing to a pulling function. This dead zone is due to inherent tolerances within the
mechanism. Approximately 2 turns are required to get out of the dead zone. If it so happens that the
nominal position of an adjustment falls within this dead zone, it is preferable to continue screwing through
the dead zone for another 2 turns. Then return to the required nominal position. The dead zone should now
be displaced away from the required end position. The DMD is now securely held in the nominal position.
•
Each adjustment is limited to approximately 10 pixels (for 2K projectors) or 20 pixels (for 4K projectors)
displacement. DO NOT try to force the adjustment beyond this point. The system has an end of travel in
both directions, but with excessive force one could cause damage.
12.4 Red on blue convergence
Required tools
No tools required.
Summary of Contents for DP K-32B Series
Page 1: ...ENABLING BRIGHT OUTCOMES User and Installation manual For DP2K 32B and DP4K 32B DPxK 32B ...
Page 8: ...R5905754 13 DPxK 32B 8 ...
Page 58: ...R5905754 13 DPxK 32B 58 Lamp Lamp House ...
Page 76: ...R5905754 13 DPxK 32B 76 Lenses lens holder ...
Page 94: ...R5905754 13 DPxK 32B 94 Input communication ...
Page 96: ...R5905754 13 DPxK 32B 96 Installing a HDD into the ICMP ICMP ...
Page 128: ...R5905754 13 DPxK 32B 128 Communicator Touch Panel ...
Page 154: ...R5905754 13 DPxK 32B 154 Maintenance ...
Page 162: ...R5905754 13 DPxK 32B 162 Convergence ...
Page 170: ...R5905754 13 DPxK 32B 170 Specifications ...
Page 188: ...Index R5905754 13 DPxK 32B 188 USB 3 0 101 User definition 10 Z Zoom 65 ...
Page 189: ...R5905754 13 DPxK 32B 189 ...
Page 190: ...Barco NV President Kennedypark 35 8500 Kortrijk Belgium www barco com R5905754 13 2018 11 12 ...