Dolby Laboratories CP650 Installation Manual Page 83
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- Table of contents
- TROUBLESHOOTING
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Dolby
®
CP650 Installation Manual Digital Soundheads
6-3
Figure 6-2 Digital Video Oscilloscope Image—Focus Adjustment
6.4 LED Brightness Confirmation and Adjustment
The optimum peak video signal voltage (unobstructed light through the perf hole) is
4 V, measured from the 0 V reference baseline to the upper trace.
Figure 6-3 Measuring Peak Video Signal Voltage
6.4.1 Cat. No. 702 Reader
The Cat. No. 702 incorporates a video level measuring circuit and indicator along
with a trimpot for adjusting the video level (LED brightness).
Video LevelIndicator
Trim Pot
Figure 6-4 Cat. No. 702 LED Brightness Adjustment
- Digital Cinema Processor 1
- Installation Manual 1
- Dolby Laboratories, Inc 2
- Table of Contents 3
- CP650 Installation Manual 4
- List of Figures 6
- List of Tables 7
- Regulatory Notices 8
- CP650 Installation Manual 11
- Chapter 1 13
- Introduction 13
- Dolby Digital 18
- Surround EX mode 18
- 1.4 Specifications 19
- 2.1 Check Main Fuse 21
- 2.3 Mount the CP650 22
- 2.5 Connect the CP650 23
- 2.5.2 Remote Controls 24
- 2.5.5 Digital Audio Sources 28
- For Cat.No. 778 29
- For Cat.No. 794 29
- CP650 INSTALLATION WIRING 33
- INPUT AND CONTROL CONNECTIONS 33
- AUDIO OUTPUT CONNECTIONS 35
- CP650DCXO INSTALLATION WIRING 38
- Chapter 3 41
- 3 1/3 db 45
- 3.2 The Setup Control Panel 47
- Chapter 4 51
- B-Chain Alignment 51
- 4.2 Microphone Placement 52
- 4.3 Initial Setup 53
- OK to save this setting 54
- Mic Level Too Low 55
- Proceeding 55
- Uncalibrated 55
- 4.5.1 Main Channels 56
- 4.5.2 Subwoofer Channel 57
- Cat. No. 791 58
- Screen Loss 58
- Filter Jumpers 58
- Crossover Mode 59
- >3 Way 59
- Le / Re Channels 59
- Disabled 59
- OK to save 62
- 4.7 Room Equalization 63
- 4.7.2 Setting Coarse EQ 64
- 4.7.3 Setting Fine EQ 65
- 4.7.4 The EQ Assist Feature 66
- Digital Subwoofer 68
- >Level: xx 68
- Polarity: Normal 68
- Center Noise: Off 68
- OK to save the selection 69
- 123 7456 8 70
- Chapter 5 71
- A-Chain Alignment 71
- 5.1 Projector Checkup 72
- 5.3 Dolby Level Set 74
- 5.3.2 Manual 75
- 5.5 Cell Alignment Check 76
- 5.6 Cell Wiring Check 77
- 5.7 Azimuth Check 77
- 5.8 Focus Check 78
- 5.9.1 Auto Slit-Loss EQ 79
- 5.9.2 Manual Slit-Loss EQ 79
- OK to save the settings 80
- Chapter 6 81
- Digital Soundheads 81
- 6.3 Focus Adjustment 82
- 6.4.1 Cat. No. 702 Reader 83
- 6.4.2 Cat. No. 701 Reader 84
- Chapter 7 85
- Final Adjustments 85
- OK to save the setting 86
- Digital Surround 88
- > xxx mSec 88
- 7.8 Mono Level Trim 92
- 7.9 Mono EQ Adjustment 92
- Front-Panel Buttons 92
- Button Presets 93
- Button 01 93
- Fader: 6.5 93
- >Delay: 0—170 mSec 93
- 7.13 Reversion Mode 94
- 7.15 Noise Gating 94
- 7.16.3 Fail Parameters 97
- L M1 0 99
- 7.17 Dialogue Normalization 100
- 7.18 Network Configuration 100
- 7.19 Clock Set 101
- 7.20 Date Set 101
- Chapter 8 103
- Accessories 103
- 8.1.1 Remove the Housing 104
- Top View 105
- 8.1.5 Assemble the Unit 106
- 8.1.6 Connect to the CP650 107
- Chapter 9 109
- 9.3 CP650 Troubleshooting 110
- Bypass Fuse 111
- 9.3.3 The Event Log 112
- 9.3.4 Troubleshooting Chart 112
- NO SOUND AT ALL 113
- NO SOUND IN SOME 114
- FORMATS 114
- FADER PROBLEMS 115
- CONTROL PROBLEMS 115
- RUMBLES, WHISTLES 116
- HUM IN SOUND 116
- TROUBLE IN ONE OR 117
- MORE CHANNELS 117
- CHANGEOVER AND 120
- CONTROL TROUBLES 120
- CP650 POWER SUPPLY WIRING 122
- CAT.NO.776-5 (GOLD COVER) 122
- CAT.NO.776-2 (GOLD COVER) 124
- Cat. No. 702 Exploded View 125
- Cat. No. 702 REAR VIEW 126
- F11504A_2.CDR 127
- Cat. No. 700 / 701 REAR VIEW 128
- Appendix A 129
- Software Operations 129
- A.2 Updating CP650 Software 130
- Appendix B 133
- Rear-Panel Connectors 133
- B.2 Input Connectors 136
- B.3 I/O Connectors 140
- Appendix C 143
- Format Descriptions 143
- C.2 Format Definitions 144
- Cat. No. 778 AES1 153
- Appendix D 155
- External Control 155
- Key Range of Values Notes 156
- Serial Data 157
- Remotes and Aud. Fader 158
- Appendix E 161
- Setup and User Menus 161
- + = 161
- = Bypass/Normal toggle 163
- (Cat. No. 778 only) 164
- E.2 CP650 User Menu 165
- DIP switch 6 Down 165
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