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Convergence Instruction Sheet

9 of 10

020-100703-01  Rev. 1   (05-2011)

• The horizontal adjustment screw is independent of the vertical and twist adjustments.

Figure 9  Red/Green/Blue Formatter Horizontal Adjustments

FINAL CONVERGENCE ASSESSMENT

When should you be satisfied with your adjustments? Read the following section before coming to a 
conclusion (

Figure 10

).  

1. The best possible convergence would be described as follows:

a. The center area highlighted should be perfectly aligned showing solid white pixels.
b. The Red should be evenly 1/4 to 1/2 a pixel out all the way around the outer area not 

highlighted showing cyan (green+blue) towards the center of the screen.

Содержание CP4220

Страница 1: ...ructions drawing provided inside the top lid of the projector TOOLS REQUIRED 2 5 mm driver with heat shrink tubing 2 0 inch and 6 5 inch lengths included with projector One driver is located on the th...

Страница 2: ...ove Figure 1 Remove top Lid from Projector Remove the high security lid to access components in the light engine and cardcage compartments NOTE Only Christie authorized service technicians should open...

Страница 3: ...he fan packs can be removed for a short time to access the adjustment screws If this is necessary you can verify the temperature at the TPC status window The projector has three separate DMD panels to...

Страница 4: ...le shifts in convergence or DMD focus The prism temperature should be monitored during the adjustment and kept within a few degrees of the nominal temperature achieved above by lowering the lamp power...

Страница 5: ...or you are working on if it is not present 2 Zoom and focus the image so you can see the entire outer edge of the test pattern frame Figure 4 Alignment and Framing Pattern 3 You should be able to judg...

Страница 6: ...one side of the screen to the other observing any change in vertical position of the color in question relative to the point where you started Figure 6 is an example of a projector with two problems R...

Страница 7: ...physical layout and adjuster function The Blue formatter board is slightly different in physical layout but the adjustment functions are the same The vertical and twist adjustments Screws 1 and 2 inte...

Страница 8: ...ight Engine Fan Pack 4 fans on page 5 13 of the CP4220 and CP4230 Service manauls P N 020 100691 xx 020 100622 xx NOTE Cooling is greatly affected by removing the filter and fan pack assembly The FPGA...

Страница 9: ...ESSMENT When should you be satisfied with your adjustments Read the following section before coming to a conclusion Figure 10 1 The best possible convergence would be described as follows a The center...

Страница 10: ...become slightly non uniform a In practice this extra increase in size has generally appeared on the lower right of the image causing an apparent clockwise twist in the lower right corner only the upp...

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