Christie CP2000-M Guide d'installation télécharger pdf (Page 58)

3.13 ADJUSTABLE FOLD MIRROR & CONVERGENCE ADJUSTMENTS

In rare instances, shipping and handling may affect the precise factory alignments of 1 or more optical

components - as a final step in the installation, the installer may have to adjust the fold mirror and/or

convergence of the DMDs, as described in this subsection.

3.13.1 DMD Convergence

A convergence problem is evident when 1 or more projected colors (red/green/blue) appears

mis-aligned when examined with a proper convergence test pattern - where normally the 3 colors

should overlap precisely to form pure white lines throughout the image, 1 or more poorly converged

individual colors may appear adjacent to some or all of the lines. Qualified service technicians can

correct this problem by referencing the convergence label, mounted on the light engine cover.

3.13.2 Fold Mirror Adjustment

If a corner or edge of the image is missing (after prime lens offset is ruled out), this may indicate the

fold mirror has become misaligned with the rest of the optical system, resulting in cropping of the

projected image.

1. Use a 1.5mm Allen® key to unlock the 2 setscrews (Figure 3-15, B).

2. In order to make adjustments turn the pivot screw 90-180° using a 2.5mm Allen® key

(Figure 3-15, C).

3. Use the 2.5mm Allen® key to adjust both capscrews, which pivot the fold mirror back and forth

(Figure 3-15, A).

4. Once the fold mirror is properly aligned tighten the 2 setscrews and pivot screw.

DANGER

UV Exposure - Protective UV glasses must be worn when performing

convergence adjustments.

Capscrew (1 of 2)

Setscrew (1 of 2)

Pivot Screw

FIGURE 3-15 FOLD MIRROR ADJUSTMENT

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 73 74

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Christie CP2000-M Guide d'installation Page 58