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™ Model DMA 8 Digital Media Adapter™ Installation Manual Issue 1 Part Number 91802
Model DMA™8 Installation Manual Dolby Laboratories, Inc. Corporate Headquarters Dolby Laboratories, Inc. 100 Potrero Avenue San Francisco, CA 94103-4813 Telephone 415-558-0200 Fax 415-863-1373 www.dolby.com/ European Headquarters Dolby Laboratories, Inc. Wootton Bassett Wiltshire, SN4 8QJ, England 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.
Model DMA™8 Installation Manual Table of Contents Chapter 1 Introduction Regulatory Notices Chapter 2 Installation 2.1 Unpacking..............................................................................................2-1 2.2 Equipment Required .............................................................................2-1 2.3 Mounting—Proper Grounding..............................................................2-2 2.4 Fuse Information ..........................................................
Model DMA™8 Installation Manual Chapter 3 Setup 3.1 Setup Software ......................................................................................3-1 3.2 Running Setup.......................................................................................3-2 3.2.1 Main Screen..............................................................................................3-2 3.2.2 Change Settings ........................................................................................3-3 3.2.
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 ...............................
Model DMA™8 Installation Manual Chapter 1 Introduction Thank you for purchasing the Dolby® Model DMA™8 Digital Media Adapter™. This 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.
Model DMA™8 Installation Manual Introduction Regulatory Notices FCC This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Model DMA™8 Installation Manual Introduction EU 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.
Model DMA™8 Installation Manual Chapter 2 Installation 2.1 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. Look for the following items, which are packed with the DMA8: • • • 2.
Model DMA™8 Installation Manual 2.3 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. This helps prevent electrical noise problems.
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. Check that the fuse has the correct rating. The fuse carrier must be inserted into the compartment with the orientation shown in Figure 2-2.
™ Model DMA 8 Installation Manual 2.
™ 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 fiber-optic cable with Toslink® connectors. The unbalanced coaxial connection has a peak-to-peak signal level of 0.5 V.
Model DMA™8 Installation Manual Installation Table 2–1 Examples of Available Balanced ↔ Unbalanced Adapters Adapter Type XLR female 110Ω in to BNC Female 75Ω out BNC Female 75Ω in to male XLR 110Ω out Neutrik Canare NA-BF BCJ-XJ-TRA NA-BM BCJ-XP-TRA Higher-priced units incorporating active circuitry are also available. These offer additional features like multiple inputs, inputs for Toslink digital connections, and multiple outputs. 2.6 Connections Refer to the connection diagrams in Section 2.
Model DMA™8 Installation Manual 2.6.2 Installation RS-232 Serial Control Port The rear-panel RS-232 connector can be used for serial control of the DMA8 using ASCII character strings for remote switching and testing. See Section 5.3 for a listing of the available serial commands. An expanded command set will become available in future software releases. 2.6.3 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.
Notes: READER 1 ANALOG ACC. / MAG. DIGITAL ACC. READER 2 OPTICAL 1 R+ R– MIC. INPUT 2. Use earthed (grounded) conduit wherever possible. Avoid routing signal wiring near electric motors, rectifiers, power wiring, dimmer wiring or other sources of electrical noise. L– L+ RTA PA PA N/C OPTICAL 2 MUX PWR MUX GND MUX DATA CAUTION To reduce the risk of fire replace only with same type and rating 250V time-lag fuse.
MODEL DA20 Notes: WARNING To reduce the risk of fire or electric shock do not expose this equipment to rain or moisture. Audio In J7 from CP 1. Follow all local electrical and building codes. Dolby Part Number 83442 2-Places See Note 6. No user serviceable parts inside. Refer all service to qualified personnel. 2. Use earthed (grounded) conduit wherever possible. Avoid routing signal wiring near electric motors, rectifiers, power wiring, dimmer wiring or other sources of electrical noise.
MODEL DA20 DIGITAL FILM SOUND PROCESSOR Notes: WARNING To reduce the risk of fire or electric shock do not expose this equipment to rain or moisture. Audio In J7 from CP 1. Follow all local electrical and building codes. Dolby Part Number 83442 2-Places See Note 6. No user serviceable parts inside. Refer all service to qualified personnel. CP Sense/ J6 Control Dolby Part Number 83132 (Part of CDA/55) See Note 5. 2. Use earthed (grounded) conduit wherever possible.
MODEL DA20 DIGITAL FILM SOUND PROCESSOR Notes: Dolby Part Number 83135 (Part of CDA/45) See Note 5. WARNING To reduce the risk of fire or electric shock do not expose this equipment to rain or moisture. Dolby Part Number 83442 2-Places See Note 6. No user serviceable parts inside. Refer all service to qualified personnel. Audio In J7 from CP 1. Follow all local electrical and building codes. 2. Use earthed (grounded) conduit wherever possible.
JM2 MODEL DA20 DIGITAL FILM SOUND PROCESSOR Notes: JM3 (12) BS1 (1) BS2 (1) (1) (12) WARNING JM4 To reduce the risk of fire or electric shock do not expose this equipment to rain or moisture. 1. Follow all local electrical and building codes. JM5 No user serviceable parts inside. Refer all service to qualified personnel. Audio In J7 from CP SK13 SP2 16 CAT.150 T 2. Use earthed (grounded) conduit wherever possible.
Model DMA™8 Installation Manual Chapter 3 Setup 3.1 Setup Software Completing the DMA™8 installation requires the use of a computer running Windows 98 or later, and the DMA8 setup software. Connect the computer via the front-panel serial port.
Model DMA™8 Installation Manual 3.2 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 3.2.1 Main Screen For initial DMA8 setup, bypass this screen by selecting Change Settings. See Section 3.2.2.
Model DMA™8 Installation Manual 3.2.2 Setup Change Settings See Section 3.2.3. See Section 3.2.4. See Section 3.2.5. Figure 3-3 Settings Screen Select the cinema processor model connected to the DMA8. Digital Input Select which digital inputs you wish to associate with the Digital Media front-panel button. When Digital Media is selected via the front-panel button, or via the digital media automation connections, the DMA8 automatically selects the active input by priority based on the list of choices.
Model DMA™8 Installation Manual 3.2.3 Setup Change Settings/Advanced Button Miscellaneous Tab Figure 3-4 Change Settings/Advanced—Miscellaneous Tab Global Audio Delay: Allows you to set a delay on the digital media audio to synchronize the audio with the picture. Mute on PCM If enabled, the DMA8 mutes when PCM audio is detected. 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.
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.
Model DMA™8 Installation Manual 3.2.4 Setup 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.
Model DMA™8 Installation Manual 3.2.5 Setup 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.
Model DMA™8 Installation Manual Chapter 4 Operation 4.1 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). 4.2 Power A mains power switch is located on the rear-panel power inlet module. It should remain in the ON position, with power normally controlled from a centrally switched facility location.
™ Model DMA 8 Installation Manual Chapter 5 Technical Reference 5.1 DMA8 Specifications Construction 2-U rack-mount chassis frame Digital Signal Inputs All inputs accommodate PCM audio at 48 and 44.1 kHz (16-, 20-, and 24-bit); Dolby Digital; and Dolby E bitstreams at the following frame rates: 23.98 (24 pulldown), 24, 25, 29.97.
Model DMA™8 Installation Manual 5.2 Technical Reference DMA8 Repair There are no user-serviceable components inside the DMA™8. If you are experiencing problems, please return the unit to your dealer or to Dolby Laboratories for repair. 5.3 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. The front-panel serial port cannot be used for this function.
Model DMA™8 Installation Manual Technical Reference 5.4 Connectors 5.4.1 Rear-Panel Connector Descriptions and Types Table 5–2 Rear-Panel Connector Descriptions and Types Panel Label Description Digital Media Automation Serial Data In Serial Data to SA10 10BASE-T Ethernet To DA Control To CP Control Analog Audio In Audio Out to CP S/PDIF Coax S/PDIF Optical 4x AES In 1x AES 5.4.
Model DMA™8 Installation Manual 5.4.3 Technical Reference Analog Audio In/Out Connector Table 5–4 Analog Audio In/Out Connector Pinout Analog Audio In (From DA20) Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Analog Audio Out (To Cinema Proc.
Model DMA™8 Installation Manual 5.4.4 Technical Reference 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.
Model DMA™8 Installation Manual 5.4.5 Technical Reference Serial Ports (Front and Rear), RS-232 Connectors Table 5–6 Serial Ports Pinout Pin No. 1 2 3 4 5 6 7 8 5.4.6 Connection No connection Data Out Data In Tied to pin 6 Chassis GND Tied to pin 4 Tied to pin 8 Tied to pin 7 CP and DA Control Automation Connectors Table 5–7 CP and DA Control Connectors Pinout Pin No.
Model DMA™8 Installation Manual 5.4.7 Technical Reference Automation Connections—CP55 with Cat. No. 321 Table 5–8 CP55 with Cat. No. 321 Installed CP55 with Cat. No. 222 SR/A module and Cat. No. 321 (TB2 fanning strip) GND S9 (mute) S8 (main/remote fader) S0 (mono) S1 (SR) S2 (A-type with Surround) S3 S4 (magnetic) S5 S6 (non-sync) S7 (Dolby Digital) CP55 with Cat. No. 222 module and Cat. No.
