Dolby Laboratories CP500-300 Specifications Page 9
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SECTION 1
INTRODUCTION
1.1 About the Dolby CP500
Dolby Laboratories has continuously established new benchmarks for motion
picture sound. The CP500 Digital Cinema Processor maintains that tradition, setting
new standards for performance, value, flexibility, and convenience. Entirely self-
contained, the CP500 provides both Dolby Digital and Dolby analog processing
built in. An easy-to-read LCD screen and uncomplicated front panel soft keys
makes it easy to install, operate, and maintain. Software that can be readily
programmed, controls any existing or future format. Built-in test instrumentation
that includes a real time analyzer make the CP500 easier to align and calibrate than
conventional processors. No external PC is required for setup. Once aligned,
calibration settings can be password protected to prevent mis-adjustment.
Built-in diagnostic software enables theater staff to verify performance of the
complete theater sound system. Calibration settings for a given theater can be
stored on a PC, and should the need ever arise, they can be transferred directly to
another CP500 or other modules, thereby reducing or eliminating the need for
further calibration after repairs. As improvements to the CP500 digital control and
processing software are developed, the latest revisions can be downloaded from a
PC to the CP500 hardware. Moreover, updates to the audio coding used for Dolby
Digital soundtracks, which are included from time to time on Dolby Digital release
prints, download automatically into the CP500 the first time such a print is played in
the cinema.
Options available for the CP500 include internal Linkwitz-Riley crossover networks
(Cat. No. 683) for bi-amplified screen speakers, and 6 channel A/D converter (Cat.
No. 685) for use with Dolby models DA10 or DA20 processors, 70mm magnetic
systems, or other cinema sound systems.
1.2 Hardware Configurations Available
The CP500 is available in four versions:
CP500-D
• Dolby Digital decoding capability
• Dolby A-type and SR analog soundtrack decoding capability
CP500-D/300
• Primarily used in preview theaters and studios
• Dolby A-type and SR analog soundtrack decoding capability
• Dolby Digital decoding capability
- Model CP500 1
- Model CP500 2
- TABLE OF CONTENTS 3
- 1.1 About the Dolby CP500 9
- 1.3 About This Manual 10
- 1.4 Specifications 11
- 1.5 Regulatory Notices 13
- SECTION 2 15
- EQUIPMENT REQUIRED 15
- TEST FILM 16
- 3.1.2 While playing the film: 17
- 3.2 Mount the CP500 18
- 3.3 Connect the CP500 18
- (Models CP500-D, and -70) 19
- Figure 3 - 2 21
- Figure 3 - 3 21
- 3.4 Check and Set Jumpers 22
- 1.9 mSEC 1.9 mSEC 1.9 mSEC 24
- Appendix B, Cat. No. 683 25
- Model CP500-D 26
- Model CP500-D/300 27
- Model CP500-SR 27
- Model CP500-70 27
- 3.6 Bypass Power Wiring 28
- 3.7 Power On 29
- 4.1 The CP500 Front Panel 31
- 4.2 System Password 34
- 4.3 Aligning the B-Chain 35
- Amplifiers 37
- Air-conditioning 38
- B-Chain Alignment 39
- POWER AMPS 40
- “85 dBC” 43
- Cat. No. 682 card 52
- 6.1 Aligning the A-Chain 53
- LAMP VOLTAGE DC ADJUSTMENT 55
- OSCILLOSCOPE TRACES 59
- CAT. NO. 661 60
- P1, Left 61
- P1, Right 62
- Projector 1 64
- 7.1 Mechanical Alignment 65
- 7.3 Focus Adjustment 66
- Figure 7- 2 67
- Figure 7- 3 68
- Figure 7- 4 68
- CCD Circuit Board 68
- Figure 7- 5 69
- 7.8 Film Threading 70
- 7.9 Cat. No. 673 71
- 7.11 Format Control 71
- Allowable Source Formats 74
- Allowable Target Formats 74
- How It Works 74
- Assigning Source Formats 75
- Assigning Target Formats 76
- Figure 7- 8 77
- 7.13.2 Print Cleanliness 78
- 7.13.3 Adjustments 78
- SECTION 8 79
- FINAL ADJUSTMENTS 79
- 8.2.1 Static 81
- 8.2.2 Dynamic 82
- 8.2.3 Typical Settings 82
- Width (feet) 83
- Width (meters) 83
- 8.4 Bypass Adjustments 84
- REMEMBER 86
- Format 04 Dolby Stereo 88
- REMEMBER: 89
- Figure 8-2 90
- Figure 9 - 1 92
- CAT. NO. 689 REMOTE 93
- Selection 94
- 9.2.1 Operation 95
- 9.2.2 Components 97
- 10.1 During the Show 98
- Surround Speakers 100
- Electronic Crossover: 100
- 10.2 Between Shows 101
- WARNING: 103
- 10.3 Troubleshooting Chart 104
- NO SOUND AT ALL 105
- NO SOUND IN SOME 106
- FADER PROBLEMS 107
- CONTROL PROBLEMS 107
- RUMBLES, WHISTLES 108
- HUM etc. IN SOUND 108
- TROUBLE IN ONE OR 109
- MORE CHANNELS 109
- CHANGEOVER AND 112
- CONTROL TROUBLES 112
- APPENDIX A 114
- ADVANCED OPERATIONS 114
- Cancel OK 115
- Equipment Needed 118
- Saving System Settings 119
- Connect to Load500 124
- Menu Cancel OK 129
- B.1 Description and Features 130
- B.2 Installation 130
- B.3 Alignment 131
- B.4 Special Applications 133
- B.5 Headers Available 134
- B.6 Jumpers and Headers 135
- 1. Automation Connector: 137
- 2. Serial Data Connector: 137
- 3. Motor Start Connector: 137
- 9. Mic. Input Connector: 139
- System Setup Menu Tree 143
- Signal Block Diagram 143
- Basic Functions 144
- Auxiliary Data Channel 146
- Optical Sound 148
- Magnetic Sound 149
- Dolby Gets Involved 150
- The Next Step: Dolby SR 151
- And Now - Dolby Digital 151
- About Dolby AC-3 152
- Making Films Sound Better 152
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