User`s manual

Dolby
®
CP650 Digital Cinema Processor User’s Manual Maintenance and Calibration
3-3
Automatic
Optical Level Adjust
Projector 1
Press OK When Ready.
L O O R
Please Wait. ..O O
O O
O O
Unable to complete
Level adjustment.
Press OK to continue
Automatic
Optical Level Adjust
Projector 2
Press OK When Ready.
Manual L O O R
Level
● O
P1
● O
XX O O
Manual
Optical Level Adjust
Projector 1
Press OK When Ready.
Automatic Optical
Level Adjust done.
Press OK to save the
Current settin
g
s.
5. Press mute.
3.2.1 Automatic Calibration
1. Press multiple times, or press and hold the button while
rotating the front-panel knob to move to the Automatic
Optical Level Adjust, Projector 1 menu.
2. Press OK to begin the automatic level calibration for
projector 1. With the Dolby tone test film running, the CP650
automatically calibrates the Left and Right channels to the
Dolby tone playing on the film. The four vertical circles
display the left channel signal level.
3. The CP650 displays this screen when the calibration has
finished. Press OK to save the settings.
4. In two-projector installations, press once to move to the
Automatic Optical Level Adjust, Projector 2 menu,
and repeat steps 2 and 3 to automatically adjust the projector 2
Dolby level.
5. Press the illuminated format button to return to normal operation, which also cancels
muting.
6. If there is a problem with automatic calibration, perform
manual adjustment by pressing OK. See Section 3.2.2.
3.2.2 Manual Calibration
1. To set Dolby level manually, press OK to return to the
Automatic Optical Level Adjust screen, then press twice to
move to Manual Optical Level Adjust for
projector 1.
2. Press OK to begin manual adjustment.
3. The number displayed on the bottom line (xx in the screenshot)
represents the level setting for the Left channel. The left four
vertical circles display the Left channel signal level, similar to
an LED meter. Rotate the front-panel knob until the two center
circles fill black. The adjustment range is 0–63 dB, in 0.3 dB steps.