R5906897 /02
Prometheus III
167
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 14-6: 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.
14.4 Red on blue convergence
Required tools
No tools required.
Summary of Contents for Prometheus III
Page 1: ...ENABLING BRIGHT OUTCOMES Installation manual Prometheus III...
Page 8: ...R5906897 02 Prometheus III 8...
Page 32: ...R5906897 02 Prometheus III 32 Installation process...
Page 62: ...R5906897 02 Prometheus III 62 Physical installation stand alone cooler...
Page 80: ...R5906897 02 Prometheus III 80 Lenses lens holder...
Page 98: ...R5906897 02 Prometheus III 98 Input communication...
Page 100: ...R5906897 02 Prometheus III 100 Installing a HDD into the ICMP ICMP...
Page 132: ...R5906897 02 Prometheus III 132 Communicator Touch Panel...
Page 148: ...R5906897 02 Prometheus III 148 Removal and installation of the projector covers...
Page 152: ...R5906897 02 Prometheus III 152 Preventative maintenance actions...
Page 170: ...R5906897 02 Prometheus III 170 Convergence...
Page 176: ...R5906897 02 Prometheus III 176 Color calibration...
Page 199: ...R5906897 02 Prometheus III 199 Environmental Information...
