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Calibration, Alignment, and Adjustment Procedures
CHRISTIE DIGITAL SYSTEMS P35GPS Projector
March, 2004
6-3
6.1.5. ALIGNMENT V ERIFICATION
1. Repeat vertical and horizontal alignment procedures described in Sections 6.1.2 and
6.1.3.
2. Recheck to verify that optimum alignment has been achieved.
6.1.6. PERFORMANCE C HECK: CROSSTALK
1. Run Dolby Cat. 97 cell alignment film.
2. Verify that there is no crosstalk between left and right processor test points.
6.1.7. ILLUMINATION U NIFORMITY
1. Run Dolby Cat. 566 illumination uniformity film.
2. Connect left and right processor test points.
3. Verify that illumination uniformity across cell is within ±0.5 dB.
6.1.8. F
INAL C HECK
1. Verify Dolby tone reference levels.
2. Run Buzz Track film.
3. Verify frequency response and azimuth.
4. Check that all adjustment locking screws are tight.
Repeat appropriate procedures from Sections 6.1.2 through 6.1.7 if adjustments are
necessary.
6.2. DIGITAL READER ALIGNMENT
The polarity of visible red LEDs may be opposite from that of infrared
LEDs.
6.2.1. PRELIMINARY S TEPS
1. Turn LED power supply down (CCW) to minimum.
2. Connect video cable to Digital Reader Assembly.
3. Turn on digital processor.
4. Apply AC power to projector and verify that LEDs are operational.