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Table of Contents
Related Manuals for Dolby Laboratories DMA 8
Summary of Contents for Dolby Laboratories DMA 8
- Page 1 Film-Tech The information contained in this Adobe Acrobat pdf file is provided at your own risk and good judgment. These manuals are designed to facilitate the exchange of information related to cinema projection and film handling, with no warranties nor obligations from the authors, for qualified field service engineers.
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Page 2: Model Dma
™ Model DMA ™ Digital Media Adapter Installation Manual Issue 1 Part Number 91802... - Page 3 Telephone (44) 1793-842100 Fax (44) 1793-842101 Dolby and the double-D symbol are registered trademarks of Dolby Laboratories. Digital Media Adapter, DMA, and Surround EX are trademarks of Dolby Laboratories. All other trademarks remain the property of their respective owners. 2002 Dolby Laboratories, Inc., all rights reserved.
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Page 4: Table Of Contents
Multiple Sources—Conversion Between Interface Standards ....2-5 Connections ..................2-6 2.6.1 Digital Media Automation Connector ............2-6 2.6.2 RS-232 Serial Control Port...............2-7 2.6.3 Serial Data In/Out—Auto Dolby Digital Surround EX Control ....2-7 Wiring Diagrams Wiring to CP500....................2-8 Wiring to CP65/DA20 ..................2-9 Wiring to CP55/DA20 ..................2-10 Wiring to CP45/DA20 ..................2-11... - Page 5 ™ Model DMA 8 Installation Manual Chapter 3 Setup Setup Software ..................3-1 Running Setup..................3-2 3.2.1 Main Screen....................3-2 3.2.2 Change Settings ..................3-3 3.2.3 Change Settings/Advanced Button............3-4 Miscellaneous Tab..................3-4 Channel Assignments Tab ................3-5 Program Selection Tab ................3-5 3.2.4 Change Settings/View Log...............3-6 3.2.5 Change Settings/Update Software ............3-7 Chapter 4 Operation Front-Panel Switches................4-1 Power .....................4-1...
- Page 6 ™ Model DMA 8 Installation Manual List of Figures Figure 2-1 Use Star Washers ......................2-2 Figure 2-2 Checking the Main Fuse .....................2-3 Figure 2-3 Rear-Panel View......................2-6 Figure 3-1 Open Device Screen ....................3-2 Figure 3-2 Main Screen ........................3-2 Figure 3-3 Settings Screen......................3-3 Figure 3-4 Change Settings/Advanced—Miscellaneous Tab............3-4 Figure 3-5 Change Settings/Advanced—Channel Assignments Tab...........3-5 Figure 3-6 Change Settings/Advanced—Program Selection Tab ..........3-5...
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Page 7: Chapter 1 Introduction
® ™ ™ new cinema audio tool, a direct result of Dolby’s mission to develop technologies that improve sound recording and reproduction, allows you to stay at the forefront of quality entertainment presentation now and into the future. The DMA8 expands the use of a cinema beyond traditional film applications. It equips any theatre for a wide variety of uses, providing capabilities far beyond that of simply showing movies to the general public. -
Page 8: Regulatory Notices
The power cord, Dolby Part No. 92021, supplied for use in Europe is not suitable for use in the UK. To use the cord in the UK, cut off the CEE7/7 plug and replace with an approved BS 1363 13A plug: •... - Page 9 ™ Model DMA 8 Installation Manual Introduction This equipment complies with the EMC requirements of EN55103-1 and EN55103-2 when operated in an E2 environment in accordance with this manual. IMPORTANT SAFETY NOTICE This unit complies with the safety standard EN60065. The unit shall not be exposed to dripping or splashing and no objects filled with liquids, such as coffee cups, shall be placed on the equipment.
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Page 10: Chapter 2 Installation
™ Model DMA 8 Installation Manual Chapter 2 Installation Unpacking Before unpacking the DMA 8, inspect the outer carton for shipping damage. If the ™ carton shows damage, inspect the unit in those areas. Carefully remove the unit from its carton, remove the plastic wrapping, and place on a flat surface. -
Page 11: Mounting-Proper Grounding
™ Model DMA 8 Installation Manual Installation Mounting—Proper Grounding Various types of noise may be present in and around the projection booth without audible signs of anything being wrong. Proper mounting and wiring of booth equipment helps ensure trouble-free performance. We recommend that star washers be installed on all rack-mounting screws to ensure good ground contact. -
Page 12: Internal Fuse
™ Model DMA 8 Installation Manual Installation WARNING: Before the following steps are performed, ensure that power to the unit is disconnected. 1. Use a small flat-blade screwdriver to open the fuse compartment door in the AC power input housing (Figure 2-2). Carefully pull out the fuse carrier. 2. -
Page 13: Digital Audio Sources
A range of digital audio formats are also accepted by the DMA8 including: • Dolby ® Digital (consumer, non-film-based) • Dolby E • PCM (digital stereo audio) All of these sources and formats use one of the following three methods to package the digital data into a physical connection. -
Page 14: Consumer Interface Standards For Digital Audio
™ Model DMA 8 Installation Manual Installation Consumer Interface Standards for Digital Audio The consumer interface standard for digital audio is S/PDIF (IEC61937). S/PDIF is found using either coaxial unbalanced connections (one signal conductor plus shield) with a characteristic input impedance of 75Ω with RCA (phono) connectors, or a ®... -
Page 15: Connections
™ Model DMA 8 Installation Manual Installation Table 2–1 Examples of Available Balanced ↔ Unbalanced Adapters Adapter Type Neutrik Canare XLR female 110Ω in NA-BF BCJ-XJ-TRA to BNC Female 75Ω out BNC Female 75Ω in NA-BM BCJ-XP-TRA to male XLR 110Ω out Higher-priced units incorporating active circuitry are also available. -
Page 16: Rs-232 Serial Control Port
Serial Data In/Out—Auto Dolby Digital Surround EX Control The Serial Data In connector accepts the film sound data bitstream from a Dolby DA20. The Serial Data To SA10 connector outputs the bitstream to a Dolby SA10 equipped with an Cat. No. 814A Surround EX ™... -
Page 22: Chapter 3 Setup
• Display the frame rate of material encoded in Dolby E • Display what type of option card is installed, if any • Display status of Dolby Surround Pro Logic decoding for two-channel PCM audio signals • Display dialogue normalization and channel mode metadata information... -
Page 23: Running Setup
™ Model DMA 8 Installation Manual Setup Running Setup After installing the software, run it to establish the connection between your PC and the DMA8. The Open Device screen appears: For future use For communicating with DMA8 For running the software without connecting to the DMA8, or for entering setup parameters and saving for later use Figure 3-1 Open Device Screen... -
Page 24: Change Settings
CP (Cinema Processor) Automation Pin Assignments If you are performing the setup with a Dolby CP500, confirm that the default formats are assigned to the appropriate softkeys. Use the pull-down arrow for reassignment, if necessary. -
Page 25: Change Settings/Advanced Button
PCM Input Ch. 1/2 Decode Allows you to set the decoding method for the first AES pair in the input bitstream: L/R discrete decoding, or Dolby Pro-Logic L, C, R, S, SW decoding. Downmix Screen Channels When enabled, five screen-channel mixes from digital media sources are downmixed to three channels (L, C, R) for proper playback in cinemas with three screen channels. -
Page 26: Channel Assignments Tab
™ Model DMA 8 Installation Manual Setup Channel Assignments Tab Figure 3-5 Change Settings/Advanced—Channel Assignments Tab Input media audio channels can be reassigned to alternative DMA8 outputs via this screen. Program Selection Tab Figure 3-6 Change Settings/Advanced—Program Selection Tab The audio group from a disembeded SDI bitstream can be selected for playback via this screen. -
Page 27: Change Settings/View Log
™ Model DMA 8 Installation Manual Setup 3.2.4 Change Settings/View Log Event Log Figure 3-7 Change Settings/View Log—Event Log Each entry is time-stamped. Examples are shown. Error Log Figure 3-8 Change Settings/View Log—Error Log Select Error Log to view a list of operational errors reported. -
Page 28: Change Settings/Update Software
™ Model DMA 8 Installation Manual Setup 3.2.5 Change Settings/Update Software Figure 3-9 Change Settings/Update Software 1. Click Select File and browse to the desired file. 2. Click Start Update. 3. Review the warning message, then select Update if desired. -
Page 29: Chapter 4 Operation
Front-Panel Switches The two front-panel switches, Film and Digital Media, select a user-determined input format based on the cinema processor settings, or a digital media input determined by the setup software (PCM, Dolby Digital, or Dolby E bitstreams). ® Power A mains power switch is located on the rear-panel power inlet module. -
Page 30: Chapter 5 Technical Reference
9-pin male and female D-connectors 44.1 kHz (16-, 20-, and 24-bit); Dolby Digital; Rear-panel Ethernet link (future use), RJ-45 and Dolby E bitstreams at the following frame rates: 23.98 (24 pulldown), 24, 25, 29.97. 30 fps Distortion AES: AES-3ID-1995/SMPTE 276M, unbalanced, via ×... -
Page 31: Dma8 Repair
8. If you are experiencing ™ problems, please return the unit to your dealer or to Dolby Laboratories for repair. Serial Port Command Set A set of ASCII commands can be used to control the DMA8 via the RS-232 serial port located on the rear panel of the unit. -
Page 32: Connectors
S/PDIF optical audio in Toslink 4x AES In 4 x AES/EBU input (eight-channel PCM audio) DB-25 1x AES Dolby E or Dolby Digital, AES3 AC power inlet module with filter 5.4.2 Digital Media Automation Connector Table 5–3 Digital Media Connector Pinout Function... -
Page 33: Analog Audio In/Out Connector
Mono Surround output Signal ground Signal ground Signal ground Signal ground Subwoofer input Subwoofer Output Band-limited to 300 Hz in Digital Media mode Spare input Spare output Note: The output connector has the same pinout as the Dolby DA20 audio output connector. -
Page 34: 4X Aes In Connector
™ Model DMA 8 Installation Manual Technical Reference 5.4.4 4x AES In Connector D/A conversion is applied to the four data streams input on this connector. After conversion, the eight analog channels are routed to the Audio Out to CP connector. Table 5–5 4x AES In Connector Pinout DB-25 Pin Signal... -
Page 35: Serial Ports (Front And Rear), Rs-232 Connectors
Board (J12) (S0) Automation select (01) Mono (01) Mono (01) Mono (01) Mono (S1) Automation select (04) Dolby (04) Dolby (05) Dolby SR (04) Dolby A-type A-type A-type (S2) Automation select (05) Dolby SR (05) Dolby SR (04) Dolby (05) Dolby SR... -
Page 36: Automation Connections-Cp55 With Cat. No. 321
S9 (mute) S9 (mute) S8 (main/remote fader) S8 (main/remote fader) S0 (mono) S0 (mono) S1 (SR) S1 (A-type without Surround) S2 (A-type with Surround) S2 (A-type with Surround) S4 (magnetic) S4 (magnetic) S6 (non-sync) S6 (non-sync) S7 (Dolby Digital) S7 (aux)
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