Dolby Laboratories CP500-300 Specifications Page 109
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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10-12
Symptom Probable Cause Recommended Action
TROUBLE IN ONE OR
MORE CHANNELS
One channel fails. Defective power amplifier, external crossover, or
wiring for that channel.
Malfunctioning module in CP500.
Place the CP500 in bypass. All three screen speakers should
become active. If not, there is a fault in the power amplifier,
external crossover, or wiring for the missing channel.
Check if the amplifier concerned is on and check for blown
fuses.
Check that the wiring from the CP500 to the amplifier or the
loudspeaker wiring have not been broken or disconnected; check
that the screws connecting the wiring on the back panel are
properly tightened..
If the power amplifier and the wiring are satisfactory, the
problem is a malfunctioning module in the CP500; switch to
bypass and call service engineer.
The sound from one channel is distorted
(you can detect the distortion at the booth
monitor at normal listening level).
Defective power amplifier for that channel.
Defective speaker for that channel. (Booth sound
is OK but sound in the auditorium is bad).
Malfunctioning card in CP500.
Wiring from the stereo solar cell to the CP500.
Check if amplifier is on and if its fuse(s) is OK.
Check speaker.
Check that the cards are all properly seated in their connectors.
Check that the wiring from the stereo solar cell to the CP500 has
not become damaged and that the solder connections to the
fanning strip are secure. Check that the D connector for the solar
cell is firmly plugged into the CP500.
Call service engineer if wiring problems are found.
- 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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