Dolby Laboratories CP500 Specifications Page 91
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8-12
8.5 About Non-sync
The CP500 has two sets of Non-sync inputs, designated Non-sync 1 and 2. They
both have a wide range of input level adjustment, but to further extend the possible
range of input signals, the two sets of inputs have different gain adjustment ranges.
• Non-sync 1 will accommodate input Dolby levels between approximately 0.13
and 6.3 volts.
• Non-sync 2 will accommodate input Dolby levels between approximately 0.05
and 2.5 volts.
Dolby level represents about 85 dBC in the auditorium.
The adjustment trimpots for these inputs are on the Cat. No. 681 card. Non-sync 1
L and R input gains are adjusted by the top two pots; Non-sync 2 L and R are
adjusted by the next two pots down.
Figure 8-2.
Cat. No. 681 card – Front View and Side View
The Non-sync gain should be adjusted with the fader at its usual setting, generally
7.0, to obtain the desired output level. This makes special fader settings for Non-
sync unnecessary.
Format 60 selects Non-sync 1; Format 61 selects Non-sync 2. These formats are
decoded in the same manner that is used in the Dolby CP55 and CP65 Cinema
Processors: Left and Right channels are sent straight through to the Left and Right
stage speakers; Center is muted, and the difference between the Left and Right
inputs is sent to the surround channels. A user format is easy to create with full
Dolby Pro-logic decoding of the Non-sync inputs. This can be done by using the
Build Custom Format menu and starting with a copy of Format 60 or 61. Note that
many two channel stereo music mixes will sound monaural when Pro-logic
decoded; you will have to experiment on a case-by-case basis to see what works
best.
CAT. NO. 681
ONOFF
PHANTOM MIC POWER
J3
FOR EQ MIC
CW
CW
NONSYNC1 L
NONSYNC1 R
CW
CW
NONSYNC2 R
NONSYNC2 L
EQ MIC
CW
SIG MIC
RV2100
RV1100
CW
DS100
DS200
R135
RV201
RV101
R235
RV200
RV100
J2
L1100
C63
IC6
IC9
IC7
IC8
C64
EQ MIC INPUT
SIGNAL PRESENT
SIGNAL PRESENT
SIGNATURE MIC
EQ MIC
NONSYNC2 RIGHT
NONSYNC2 LEFT
NONSYNC1 RIGHT
NONSYNC1 LEFT
CAT. NO. 681
- Film-Tech 1
- Model CP500 2
- Model CP500 3
- TABLE OF CONTENTS 4
- 1.1 About the Dolby CP500 10
- 1.3 About This Manual 11
- 1.4 Specifications 12
- 1.5 Regulatory Notices 14
- SECTION 2 16
- EQUIPMENT REQUIRED 16
- TEST FILM 17
- 3.1.2 While playing the film: 18
- 3.2 Mount the CP500 19
- 3.3 Connect the CP500 19
- (Models CP500-D, and -70) 20
- Figure 3 - 2 22
- Figure 3 - 3 22
- 3.4 Check and Set Jumpers 23
- CAT. NO. 683 25
- Appendix B, Cat. No. 683 26
- Model CP500-D 27
- Model CP500-D/300 28
- Model CP500-SR 28
- Model CP500-70 28
- 3.6 Bypass Power Wiring 29
- 3.7 Power On 30
- 4.1 The CP500 Front Panel 32
- 4.2 System Password 35
- 4.3 Aligning the B-Chain 36
- 5.1 Check Theater Equipment 38
- 5.2.2 Screen Channels 39
- B-Chain Alignment 40
- 5.3 Room Equalization 41
- “85 dBC” 44
- Reference 47
- Response 47
- CAT. NO. 682 52
- Cat. No. 682 card 53
- 6.1 Aligning the A-Chain 54
- LAMP VOLTAGE DC ADJUSTMENT 56
- OSCILLOSCOPE TRACES 60
- CAT. NO. 661 61
- P1, Left 62
- 7.1 Mechanical Alignment 66
- 2.7 to 5 volts 67
- Voltage Adjust 68
- 7.6 Optical Alignment 69
- Figure 7- 5 70
- 7.8 Film Threading 71
- 7.9 Cat. No. 673 72
- 7.11 Format Control 72
- Allowable Source Formats 75
- Allowable Target Formats 75
- How It Works 75
- Assigning Source Formats 76
- Assigning Target Formats 77
- Figure 7- 8 78
- 7.13.2 Print Cleanliness 79
- 7.13.3 Adjustments 79
- SECTION 8 80
- FINAL ADJUSTMENTS 80
- 8.2.1 Static 82
- 8.2.2 Dynamic 83
- 8.2.3 Typical Settings 83
- Width (feet) 84
- Width (meters) 84
- 8.4 Bypass Adjustments 85
- Position J900 to 86
- REMEMBER 87
- Format 04 Dolby Stereo 89
- Adjustments 90
- 8.5 About Non-sync 91
- 8.6 Mute Speed Adjustment 92
- Figure 9 - 1 93
- CAT. NO. 689 REMOTE 94
- 9.1.3 Auditorium Fader 95
- 9.2.1 Operation 96
- 9.2.2 Components 98
- 10.1 During the Show 99
- Surround Speakers 101
- Electronic Crossover: 101
- 10.2 Between Shows 102
- WARNING: 104
- 10.3 Troubleshooting Chart 105
- NO SOUND AT ALL 106
- NO SOUND IN SOME 107
- FADER PROBLEMS 108
- CONTROL PROBLEMS 108
- RUMBLES, WHISTLES 109
- HUM etc. IN SOUND 109
- TROUBLE IN ONE OR 110
- MORE CHANNELS 110
- CHANGEOVER AND 113
- CONTROL TROUBLES 113
- APPENDIX A 115
- ADVANCED OPERATIONS 115
- Cancel OK 116
- A.2 Saving System Settings 119
- Saving System Settings 120
- A.2.2 Using Load500 Software 125
- Connect to Load500 127
- Menu Cancel OK 130
- B.1 Description and Features 131
- B.2 Installation 131
- B.3 Alignment 132
- B.4 Special Applications 134
- B.5 Headers Available 135
- B.6 Jumpers and Headers 136
- APPENDIX C 138
- 9. Mic. Input Connector: 140
- System Setup Menu Tree 144
- Signal Block Diagram 144
- Basic Functions 145
- Auxiliary Data Channel 147
- Optical Sound 149
- Magnetic Sound 150
- Dolby Gets Involved 151
- The Next Step: Dolby SR 152
- And Now - Dolby Digital 152
- About Dolby AC-3 153
- Making Films Sound Better 153
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