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General| Brand | Dolby Laboratories |
|---|---|
| Model | CP65 |
| Category | Computer Hardware |
| Language | English |
Standard configuration for reproduction of various sound formats.
Equipped with A-type noise reduction only. Reproduces same formats as CP65 except Dolby Stereo SR.
Equipped with two Cat. No. 300 modules for 70 mm Dolby Stereo magnetic soundtracks.
Intended for qualified cinema sound service personnel.
Details the function of each installed module in the CP65 card cage.
Safety notices and compliance standards related to electrical equipment.
Troubleshooting guide for identifying and resolving hum issues in the audio system.
Calibration using Dolby Tone test film for operating level and noise reduction tracking.
Correcting loudspeaker response errors using acoustic measurements and equalization.
Initial checks of projector components like solar cells, lenses, and film guides.
Alignment of projector optics, solar cells, and preamplifier for optimal signal path.
Alignment procedures for magnetic playback heads and preamplifiers for 70 mm prints.
Adjusting loudspeaker response using pink noise and RTA to achieve flat frequency response.
Setting the audio gain for Left, Center, and Right channels to a specified sound pressure level.
Adjusting gain and equalization for mono playback to achieve desired sound quality.
Calibrating the subwoofer's frequency response and level for optimal bass reproduction.
Equalizing surround channels for balanced and accurate spatial audio reproduction.
Setting surround delay to ensure dialogue arrives from front speakers, not surrounds.
Adjusting gain levels for bypass operation to match normal playback levels.
Setting gain for non-synchronous audio sources like cassette decks or CD players.
Fine-tuning mono playback gain and equalization for optimal sound.
Performing final system checks using test films to verify alignment.
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