Dolby Laboratories CP500-D, CP500-300, CP500-SR, CP500-70, CP500 Installation And Alignment Manual
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Model CP500
Digital Cinema Sound
Processor
Installation and Alignment
Issue 5 Part No. 91371
Installation and Alignment Manual
For
Model CP500
Digital Cinema Sound Processor
Dolby Laboratories Incorporated
U.S.A. 100 Potrero Avenue, San Francisco, CA 94103
Tel: 415-558-0200; Fax: 415-863-1373, www.dolby.com
U.K. Wootton Bassett, Wiltshire SN4 8QJ
Tel: (44) 1793-842100; Fax: (44) 1793-842101
Equipment manufactured by Dolby Laboratories is warranted against defects in materials and
DISCLAIMER OF WARRANTIES:
workmanship for a period of one year from the date of purchase.
merchantability or fitness for a particular purpose.
LIMITATION OF LIABILITY:
negligence or otherwise shall not exceed the cost of repair or replacement of the defective components and under no circumstances shall
Dolby Laboratories be liable for incidental, special, direct, indirect or consequential damages (including but not limited to damage to software
or recorded audio or visual material), or loss of use, revenue or profit even if Dolby Laboratories or its agents have been advised, orally or in
writing, of the possibility of such damages.
Dolby and the double-D symbol are registered trademarks of Dolby Laboratories.
Windows 95 is a trademark of Microsoft Corporation
Digital decoding covered by the following U.S. patents: 4,790,016, 4,914,701, 4,799,260 4,941,177, 5,109,417, 5,142,656, 5,230,038,
5,274,740, 5,297,236, 5,357,594, 5,463,424, 5,583,962, 5,608,805, and other worldwide patents granted and pending.
There are no other express or implied warranties and no warranty of
It is understood and agreed that Dolby Laboratories’ liability whether in contract, in tort, under any warranty, in
©1998 Dolby Laboratories Inc.
ISSUE 5
Software v 1.30
S98/11507/12003
Dolby Part No. 91371
SECTION 1 INTRODUCTION
1.1 About the Dolby CP500......................................................................1-1
1.2 Hardware Configurations Available....................................................1-1
CP500-D........................................................................................1-1
CP500-300.....................................................................................1-1
CP500-SR......................................................................................1-2
CP500-70.......................................................................................1-2
1.3 About This Manual..............................................................................1-2
1.4 Specifications ......................................................................................1-3
1.5 Regulatory Notices..............................................................................1-5
FCC ...............................................................................................1-5
UL..................................................................................................1-5
UK .................................................................................................1-5
IEC.................................................................................................1-5
SECTION 2 EQUIPMENT REQUIRED
TABLE OF CONTENTS
SECTION 3 INSTALLATION AND JUMPERS
3.1 Replacing an Existing Sound System..................................................3-1
3.1.1 Before playing the film:........................................................3-1
3.1.2 While playing the film:.........................................................3-1
3.1.3 Disconnect the old system....................................................3-1
3.2 Mount the CP500.................................................................................3-2
3.3 Connect the CP500..............................................................................3-2
3.3.1 Connect Motor Start Relays ................................................3-3
3.3.2 Connect Remote Controls ...................................................3-3
3.3.3 Connection of Solar Cell Boards.........................................3-4
3.4 Check and Set Jumpers........................................................................3-6
Cat. No. 661 Optical Pre-amplifier Card (Analog
Soundtracks)......................................................................3-6
Cat. No. 681 Analog Switch Card.....................................3-6
Cat. No. 682 Analog Output Card.....................................3-7
Cat. No. 683 Crossover Card (Optional)...........................3-8
3.5 Install Circuit Cards - Card Descriptions ..........................................3-10
Model CP500-D ..........................................................................3-10
Cat. No. 222SR/A Module..............................................3-10
Cat. No. 661 Optical Preamplifier Card..........................3-10
Cat. No. 681 Input Switch Card ......................................3-10
Cat. No. 675A Digital Signal Processing Cards (2)........3-10
Cat. No. 685 6-Channel Analog to Digital Converter
Card .................................................................................3-10
Cat. No. 662 6-Channel Digital to Analog Converter
and Voltage Controlled Amplifier Card..........................3-10
Cat. No. 682 Analog Output Card...................................3-10
Cat. No. 684 System Controller Card..............................3-10
Cat. No. 683 Crossover Card (Optional).........................3-11
ii
Dolby Digital Soundtrack Processing System............................. 3-11
Cat. No. 670 Video Front-end Card............................................ 3-11
Cat. No. 671 DSP Cards (2)........................................................ 3-11
Cat. No. 673 System Services Card ............................................ 3-11
Cat. No. 675A Digital Signal Processing Card........................... 3-11
Cat. No. 680 Bit Rate Converter Card ........................................ 3-11
Model CP500-D/300............................................................................... 3-11
Model CP500-SR ....................................................................................3-11
Model CP500-70..................................................................................... 3-11
Cat. No. 222A Modules (2)......................................................... 3-11
Cat. No. 669 Adapter Card..........................................................3-11
Cat. No. 685 6-Channel Analog to Digital Converter
Card............................................................................................. 3-11
3.6 Bypass Power Wiring....................................................................................3-12
3.7 Power On.......................................................................................................3-13
3.7.1 Hum and Other Noise Problems.....................................................3-14
Fold-Out Drawings:
Card Locations
CP500 Wiring
SECTION 4 FRONT PANEL and ALIGNMENT OVERVIEW
4.1 The CP500 Front Panel................................................................................. 4-1
4.1.1 Soft Keys: SK1 to SK8..................................................................4-1
4.1.2 Hard Keys....................................................................................... 4-1
Formats........................................................................................ 4-1
Menu............................................................................................4-1
Cancel..........................................................................................4-3
OK............................................................................................... 4-3
Exit.............................................................................................. 4-3
4.1.3 Other Controls and Indicators:....................................................... 4-3
4.2 System Password........................................................................................... 4-4
4.3 Aligning the B-Chain.................................................................................... 4-5
SECTION 5 B-CHAIN ALIGNMENT
5.1 Check Theater Equipment............................................................................. 5-1
Amplifiers....................................................................................5-1
Air-conditioning.......................................................................... 5-2
5.2 Preparing for Room Equalization.................................................................. 5-2
Using a Microphone Multiplexer with the CP500...................... 5-2
5.2.1 Configure the Cat. No. 682 for Use with the Optional
Cat. No. 683 Electronic Crossover Card................................................. 5-2
5.2.2 Screen Channels............................................................................. 5-2
5.2.3 Surround Channel Bass Drivers (Optional)....................................5-3
5.3 Room Equalization........................................................................................ 5-4
5.4 Bypass Crossover Adjustment......................................................................5-15
iii
SECTION 6 A-CHAIN ALIGNMENT
6.1 Aligning the A-Chain....................................................................................6-1
6.2 Analog Optical Alignment - Projector...........................................................6-2
SECTION 7 Cat. No. 700 DIGITAL SOUNDHEAD
7.1 Mechanical Alignment ....................................................................................7-1
7.2 Adjustment Setup with Oscilloscope ..............................................................7-1
7.3 Focus Adjustment............................................................................................7-2
7.4 Exciter Lamp Level Confirmation and Adjustment........................................7-3
7.5 Film Path Alignment.......................................................................................7-3
7.6 Optical Alignment...........................................................................................7-4
7.7 How to Identify Types of Soundtracks............................................................7-6
7.8 Film Threading................................................................................................7-6
7.9 Cat. No. 673.....................................................................................................7-7
7.10 Projector Changeover / Motor Run Indicators ..............................................7-7
7.11 Format Control ..............................................................................................7-7
7.12 Automatic Selection of the Dolby Digital Format.........................................7-7
7.12.1 A Quick Look at Operation With Standard Set-up........................7-7
7.12.2 Operation with Custom Setup ........................................................7-9
Allowable Source Formats..........................................................7-10
Allowable Target Formats...........................................................7-10
How It Works..............................................................................7-10
Disabling the Auto-Digital Feature.............................................7-10
7.12.3 Setting Up the Auto-Digital System.............................................7-11
Assigning Source Formats...........................................................7-11
Assigning Target Formats ...........................................................7-12
7.13 Maintenance and Adjustments ....................................................................7-13
7.13.1 Replacing the Exciter Lamp.........................................................7-13
7.13.2 Print Cleanliness...........................................................................7-13
7.13.3 Adjustments..................................................................................7-13
SECTION 8 FINAL ADJUSTMENTS
8.1 Setting Optical Surround Delay.......................................................................8-1
8.2 Setting Digital Soundhead Delay ....................................................................8-3
8.2.1 Static.................................................................................................8-3
8.2.2 Dynamic............................................................................................8-4
8.2.3 Typical Settings................................................................................8-4
8.3 Setting Digital Surround Delay.......................................................................8-5
8.4 Bypass Adjustments........................................................................................8-6
8.4.1 Before you Adjust ............................................................................8-6
8.4.2 Bypass Level Adjustment (No Cat. No. 683 Electronic
Crossover Card Installed)..........................................................................8-7
8.4.3 Output HF/LF Balance and Level Adjustments(With
Cat. No. 683 Electronic Crossover Card)..................................................8-8
8.4.4 Bypass Level Adjustment for Early Cat. No. 682 (No
Cat. No. 683 Electronic Crossover Card Installed)........................ 8-10
8.4.5 Early Cat. No. 682 Output HF/LF Balance and Level
Adjustments (With Cat. No. 683 Electronic Crossover
Card)...............................................................................................8-11
8.5 About Non-sync ............................................................................................ 8-12
8.6 Mute Speed Adjustment................................................................................ 8-13
SECTION 9 ACCESSORIES
9.1 CP500 Operation with Remote Controls.........................................................9-1
9.1.1 Cat. No. 689 CP500 Remote Control...............................................9-1
9.1.2 Cat. No. 734 CP500 Remote Fader..................................................9-2
9.1.3 Auditorium Fader.............................................................................9-3
9.2 Operation with Cat. No. 580 Microphone Multiplexer...................................9-4
9.2.1 Operation..........................................................................................9-4
9.2.2 Components......................................................................................9-6
iv
SECTION 10 TROUBLESHOOTING
10.1 During the Show..........................................................................................10-1
10.1.1 If Film Sound Is Lost.................................................................... 10-1
10.1.2 If One Channel Fails or is Distorted.............................................10-2
10.1.3 If Switching to Bypass Does Not Restore Sound......................... 10-2
10.1.4 If You Hear Extraneous Noises When Playing a
Digital Film............................................................................................. 10-2
10.1.5 Excessive or Inappropriate Sound From Surround
Speakers .................................................................................................. 10-3
10.1.6 On CP500s Equipped with Cat. No. 683 Electronic
Crossover:................................................................................................10-3
10.2 Between Shows........................................................................................... 10-4
10.2.1 Analog Film Sound Signal Path LEDs......................................... 10-4
10.2.2 Digital Film Sound Signal Path LEDs......................................... 10-5
10.2.3 Bypass Signal Path LEDs............................................................. 10-7
10.3 Troubleshooting Chart.................................................................................10-7
APPENDIX A ADVANCED OPERATIONS
A.1 Customizing the Format Display Screen........................................................A-1
v
A.2 Saving System Settings...................................................................................A-5
A.2.1 Using the Terminal Program in Windows®.....................................A-5
Equipment Needed ........................................................................A-5
Transferring Data From the CP500 to the Computer....................A-5
Transferring Data From the Computer to the CP500..................A-9
A.2.2 Using Load500 Software...............................................................A-11
Equipment Needed ......................................................................A-11
Transferring Data From the CP500 to the Computer..................A-11
Transferring Data from the Computer the to the
CP500..........................................................................................A-13
A.3 Transferring Data Between Two CP500s.....................................................A-15
APPENDIX B CAT. NO. 683 ELECTRONIC CROSSOVER
B.1 Description and Features.................................................................................B-1
B.2 Installation ......................................................................................................B-1
B.3 Alignment .......................................................................................................B-2
B.3.1 Screen Channels...............................................................................B-2
B.3.2 Surround Channel Bass Drivers.......................................................B-3
B.3.3 Bypass Crossover Subsystem...........................................................B-3
B.4 Special Applications.......................................................................................B-4
B.4.1 Time Delay.......................................................................................B-4
B.4.2 Crossover Frequency........................................................................B-5
B.5 Headers Available...........................................................................................B-5
B.6 Jumpers and Headers ......................................................................................B-6
APPENDIX C BACKPLANE CONNECTOR ASSIGNMENTS
1. Automation Connector:............................................................C-1
2. Serial Data Connector: .............................................................C-1
3. Motor Start Connector:.............................................................C-1
4. Bypass / Remote Connector:....................................................C-2
5. Main / LF Output Connector:...................................................C-2
6. Crossover Output Connector:...................................................C-2
7. Optical 1 Input Connector:.......................................................C-3
8. Optical 2 Input Connector:.......................................................C-3
9. Mic. Input Connector: ..............................................................C-3
10. Accessory Rack Analog Connector:.......................................C-4
11. Accessory Rack Digital Connector:........................................C-5
12. 6 Channel Input Connector:....................................................C-6
13. Reader 1 and Reader 2 Input Connector:................................C-7
FOLD-OUT DRAWINGS:
System Setup Menu Tree
Alignment and Diagnostics Menu Tree
Signal Block Diagram
Backplane Interconnections
vi
APPENDIX D THE DOLBY DIGITAL SUBSYSTEM
D.1 Basic Functions ..............................................................................................D-1
D.2 Discussion of Changeover Technique............................................................D-3
D.3 Auxiliary Data Channel..................................................................................D-3
APPENDIX E THE EVOLUTION OF DOLBY FILM SOUND
Optical Sound.......................................................................................... E-1
Magnetic Sound.......................................................................................E-2
Dolby Gets Involved................................................................................E-3
The Next Step: Dolby SR........................................................................ E-4
And Now - Dolby Digital........................................................................E-4
About Dolby AC-3.................................................................................. E-5
Making Films Sound Better....................................................................E-5
1.1 About the Dolby CP500
Do lby Labora tories ha s continuously established ne w benchmarks fo r motion
picture sound. The CP500 Digital Cinema Processor maintains that tr adition, setting
new standa rds for p er f orma nce, va lue , flexibility, a nd conv enienc e. E ntirely selfcontained, the CP500 provides both Dolby Digital and Dolby analog processing
built in. An easy-to-read LCD screen and uncomplicated front panel soft keys
makes it easy to install, operate, and maintain. Software that can be readily
prog ra mmed, controls any exis ting or future format. Bu ilt-in test instru mentation
that includes a real time analyzer make the CP500 easier to align and calibrate than
conventional processors. No external PC is required for setup. Once aligned,
calibration settings can be password protected to pr event mis-adjustment.
Built-in diagnostic software enables theater st aff to verify performance of the
complete theater so und system. Calibration settings for a given theater can be
stor ed on a PC, and should the need ever arise, they can be transferred directly to
another CP500 or other modules, thereby reducing or eliminating the ne ed for
further calibration after repairs. As improvements to the CP500 digital control and
processing software are developed, the latest r evisions can be downloaded from a
PC to t he CP500 hardware. Mor eover, updates to the audio coding used for Dolby
Digital soundtracks, whic h are includ ed from time to time on Dolby Digital release
prints, download automatically into the CP500 t he first time such a print is played in
the cinema.
SECTION 1
INTRODUCTION
Options available for the CP500 include internal Linkwitz-Riley crossover networks
(Cat. No . 683) for bi-amplified screen speakers, and 6 channel A/D converter (Cat.
No. 685) for use with Dolby models DA10 or DA20 processors, 70mm magnetic
systems, or other cinema sound systems.
1.2 Hardware Configurations Available
The CP500 is available in four versions:
CP500-D
• Dolby Digital de cod ing ca pa bility
• Dolby A- type and S R a nalog soundtrack de coding ca pability
CP500-D/300
• Primarily used in preview theaters and studios
• Dolby A- type and S R a nalog soundtrack de coding ca pability
• Dolby Digital de cod ing ca pa bility
CP500-SR
• Dolby A- type and S R a nalog soundtrack de coding ca pability
• Upgradable to Dolby Digital decoding by means of plug-in circuit cards
CP500-70
• Dolby Digital de cod ing ca pa bility
• Dolby A- type and S R a nalog soundtrack de coding ca pability
• 70mm magnetic soundtrack c ap ability (inclu de s a 6 c han nel A /D module
and 4 additional channels of Dolby A-Type noise reduction for use with
an external magnetic pre-amp); can play Formats 42 and 43
Any CP500 configuration also interfaces readily with other film sound eq uip ment.
1.3 About This Manual
Th is ma n ual is intende d to be use d by in dividu als who ar e q ua lified in the area of
cinema sound equipment installation and service. The basic day-to-day operation of
the CP500 is covered in the CP500 Users' Manual, Dolby part number 91372.
1-2
This installation and alignment manual covers the procedures necessary to ensure
that t he t heat er sound system is accurately aligned to standards that have been
es tablished by Dolb y Laboratories. Follow ing these proced ures will ensure that the
t heater so und s ystem will accurat ely reproduce the soundt r ack as the director and
sou nd mixers inten de d.
The Dolby CP500 is the central element of the theater sound system. The projector,
the Dolby Processor, t he po wer amplifiers and the loudspeakers, as well as the
auditoriu m itse lf, must all be consider ed wh en aligning the system fo r optimum
performance.
The system alignment pro cedur e is divided into t w o parts. T he B-chain alignment
includes the equalization, loudspeaker crossover, and o u tput level adjustments, in
addition to the regulation of miscellaneous functions, such as fade-out time
adjustment. The A-chain alignment involves adjustments made to the pro jector
soundhead optics, solar cell, and optical preamplifier card.
1.4 Specifications
Construction
Rack-m ount chassis fra me construction with p lug-in m od u les accessible behi nd hinged fr ont
panel.
Signal Connect ions
a. Standard 9 pin D-type connectors for Mic., Optical 1, Optical 2, Seria l Data , a nd Motor Start
signals.
b. Standard 25 pin female D-type connectors for Digital Readers 1 and 2, Accessory Unit,
Automation connections, and 6 Channel Analog Inputs.
c. RCA type phono jacks for Non-sync 1 and 2.
d. Phoenix screw terminal connectors for processor outputs, bypass power, and remote control
connections.
Signal Inputs
a. 6 Channel: Six analog inputs for use with external magnetic preamplifier or external
processor, 300 mV operatin g level. (Requires optional Cat. No. 685.)
1-3
b. Optical: Two pairs of balanced inputs for two projectors with stereo solar cells (available from
Dolby Laboratories mounted on brackets for most projector types). Inputs compatible with LED
illuminated reverse-scan analog readers.
c. Non-sync: Two stereo inputs for non-sync sources. 50 kOhm input impedance, 50 mV to 2.5 V
sensitivity. 2:4 decoder may be used to decode Dolby Surround program sources.
d. Microphone: One balanced input for B-chain equalization P.A. mic. or multiplexer and one
unba lan ced inp u t for h ou s e announcement mic.
e. Dolby Digital Film Reader (CP500-D): Two inputs for connection to penthouse or inboard
readers.
Signal Outputs
47 ohms output impedance will drive any load greater than 600 ohms. Maximum output level, +20
dBu. Typical operating l evel, -10 dBu.
Operating levels from 25 mV to 0.7 V may be accommodated.
Output For Hearing-impaired System
Center-weighted sum of L, R, C for connection to auxiliary system for the hearing impaired.
Output impedance is 47 ohms with a fixed output level of 200 mV.
Optical Preamplifier
A Cat. No. 661 Optical Preamplifier accepts signals from two projectors with stereo solar cell s .
Gain and slit loss adjustments are digitally controlled.
Noise Reduction
Two channels of Dolby A-type noise reduction and two channels of Dolby SR are provided as
standard. Up to six channels of A-type (CP500-70) and two additional channels of studio SR
(CP500-300) can be accommodated.
Four Channel Decoder
Cat. No. 675A DSP Module decodes left, center, right , a nd surround channels from the two optical
tracks on Dolby analog optical prints. Adjustable delay to optimize front to surround separation.
1-4
Loudspeaker Equalization
L,C,R: 27 band digital 1/3 octave EQ; digitally controlled bass and treble
LsRs: digital 9-band, full octave EQ
SW: Digital parametric EQ with 12dB cut capability
Remote Connections
Connections for up to two Dolby Cat. No. 689 remote fader, format selectors and/or Cat. No. 734
fader-only remotes are provided. A provision is also made for a temporary auditorium fader
consisting of a 100k potentiometer.
Automation
Direct mode allows eight contact closures to ground for selecting formats.
Sequential mode allows a single contact closure to ground for sequencing pre-programmed
formats.
Distortion
Typically 0.05% in Dolby SR mode (Format 05, with output operating level set to -10 dBu and
input 10dB over Dolby level ).
Dynamic Range
Typically 92 dB with fader set to 7.0.
Dimensions
Four units high rack mount chassis. Standard 178 mm high by 493 mm wide faceplate (7 x 9").
Maximum projection behind mounting sur face is 360 mm (14.17"). Maxim um projection in front
of mounting plate is 32 mm (1.23").
Weight
11.7 kgs (26 lb.) Max.
Power Requirements
100 - 240 VAC, 50-60 Hz Auto Sensing. 2 A max. i nput current . Single phase. 120 Watts max.
Fuse Requirements
Single 1 1/4" or 5 X 20 mm slow blow fuse according to local safety requirements.
Operating Conditions
0 - 40 oC, 20-80 % humidity, non-condensing.
1.5 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. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with this instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his or her own
expense.
UL
The CP500 is UL listed. This installa ti on m anual is for use by qualified personnel only. To avoid
electric shock do not open the unit or perform any servicing unless you are qualified to do so.
1-5
WARNING
fuse only with the same type and rating.
The ground terminal of the power plug is connected directly to the chassis of the unit. For
conti nued protection agai nst electr ic shock , a thr ee- p in, correctly wir ed and eart hed power ou tlet
must be used. Do not use a ground-lifting adapter and never cut the ground pin on the three-prong
plug.
: Check that the correct fuse has been installed. To reduce the risk of fire, replace the
FUSE - 2 Amp, time-lag (T2A), 20 mm long, 250 Volt
Dolby part no. 56027
UK
WARNING
As the colours of the cores in the mains lead may not correspond with the coloured markings
iden tifying th e term ina ls in your pl u g , pr oceed as follows:
: THIS APPARATUS MUST BE EARTHED.
• The core that is coloured green and yellow must be connected to the terminal in
the plug that is marked with the letter E or by the earth symbol
green or g reen and yell ow.
• The core that is coloured blue must be connected to the terminal that is marked
with the letter N or coloured black.
• The core that is coloured brown must be connected to the terminal that is marked
with the letter L or coloured red.
or coloured
IEC
This unit complies with the EMC r equir ement s of EN50081-1 and EN 50082-1 when insta l led in
an E2 environment in accordance with this manual.
1-6
IMPORTANT SAFETY NOTICE
This unit complies w ith th e safety standard IEC65. To ensure safe op eration and to guard
against potential shock hazard or risk of fire, the following must be observed:
o If the unit has a volta ge s e lector, ensure that it is s e t to the correct mains voltage for your supply. If there is n o voltage
selector, en sure that your supply is in the correct range for the input requirement of the unit
oEnsure fuses fitted are the correct rating and type as marked on the unit.
o The unit must be earthed by connecting to a correctly wired and earthed power outlet.
oThe pow er cord supplied with th is unit must be wired as follows:
Live—Brown Neutral—Blue Earth—Green/Yellow
IMPORTANT – NOTE DE SECURITE
Ce materiel est conforme à la norme IEC65. Pour vous assurer d'un fonctionnement sans danger et de prévenir
tout choc électrique ou tout risque d'incendie, veillez à observer les recommandations suivantes.
o Le selecteur de tension doit être placé sur la valeur correspondante à votre alimentation réseau.
o Les fusibles doivent correspondre à la valeur indiquée sur le materiel.
o Le materiel doit être correctement relié à la terre.
o Le cordon secteur livré avec le materiel doit être cablé de la manière suivante:
Phase—Brun Neutre—Bleu Terre—Vert/Jaune
WICHTIGER SICHERHEITSHINWE IS
Dieses Gerät entspricht der Sicherheitsnorm IEC65. Für das sichere Funktionieren des Gerätes und zur
Unfallverhütung (elektrischer Schlag, Feuer) sind die folgenden Regeln unbedingt einzuhalten:
o Der Spannungswähler muß auf Ihre Netzspannung ein gestellt se in .
o Die Sicherungen müssen in Typ und Stromwert mit den Angaben auf dem Gerät übereinstimmen.
o Die Erdung des Gerätes muß über eine geerdete Steckdose gewährleistet sein.
o Das mitgeliefe rte Netzkabel muß wie folgt verdrahtet w erden:
Phase—braun Nulleiter—blau Erde—grün/gelb
NORME DI SICUREZZA – IMPORTANTE
Questa apparecchiatura è stata costruita in accordo alle norme di sicurezza IEC 65. Per una perfetta
sicurezza ed al fine di evitare eventuali rischi di scossa êlettrica o d'incendio vanno osservate le
seguenti misure di sicurezza:
o Assicurarsi che il selettore di camb io tensione s ia po sizionato sul valore corretto.
o Assicurarsi che la portata ed il tipo d i fusibili siano quelli pres critti dalla casa costruttrice.
o L'apparecchiatura deve avere un collegamento di messa a terra ben eseguito; anche la connessione rete deve
avere un collegamento a terra.
o Il cavo di alimentazione a corredo dell'apparecchiatura deve essere collegato come segue:
Filo tensione—Marrone Neutro—Blu Massa—Verde/Giallo
AVISO IMPORTANTE DE SEGURIDAD
Esta unidad cumple con la norma de seguridad IEC65. Para asegurarse un funcionamiento
seguro y prevenir cualquier posible peligro de descarga o riesgo de incendio, se han de observar
las siguientes precauciones:
o Asegúrese que el selector de tensión esté ajustado a la tensión correcta para su alimentación.
o Asegúrese q ue lo s fusibles c o lo cados son de l tip o y valor correctos, tal com o se marca en la unidad.
o La unidad debe ser puesta a tierra, conectándola a un conector de red correctamente cableado y puesto a tierra.
o El cable de red suministrado con esta unidad, debe ser cableado como sigue:
Vivo—Marrón Neutro—Azul Tierra—Verde/Amarillo
VIKTIGA SÄKERHETSÅTGÄRDER!
Denna enhet uppfyller säkerhetsstandard IEC65. För att garantera säkerheten och gardera mot
eventuell elcho ck eller brandrisk, måste följande observeras:
o Kontrollera att spänningsväljaren är inställd på korrekt nätspänning.
o Konrollera att säkringarna är av rätt typ och för rätt strömstyrka så som anvisningarna på enheten föreskriver.
o Enheten måste vara jordad genom anslutning till ett korrekt kopplat och jordat el-uttag.
o El-sladden som medföljer denna enhet måste kopplas enligt foljande:
Fas—Brun Neutral—Blå Jord—Grön/Gul
BELANGRIJK VEILIGHEIDS-VOORSCHRIFT:
Deze unit voldoet aan de IEC65 veiligheids-standaards. Voor een ve ilig gebruik en om het gevaar van electris che
schokken en het risico van brand te vermijden, dienen de volgende regels in acht te worden genomen:
o Controleer of de spanningscaroussel op het juiste Voltage staat.
o Gebruik alleen zekeringen van de aangegeven typen en waarden.
o Aansluiting van de unit alleen aan een geaarde wandcontactdoos.
o De netkabel die met de unit wordt geleverd, moet als volgt worden aangesloten:
Fase—Bruin Nul—Blauw Aarde—Groen/Geel
GB
F
D
I
E
S
NL
SECTION 2
EQUIPMENT REQUIRED
The following equipment is required for proper installation and alignment of the
CP500 Digital Cinema Processor.
• Dual-trace oscillos cop e w ith X-Y fac ilities (minimum bandw idth 20 MHz, 50
MHz recommended).
• Ca libr ate d mic rophone ( preferab ly multiple micr ophon es and a multip lexer ).
• Sound pressure lev el me ter with slow time-con stant an d C we ighting scale .
• Voltmeter for measuring the exciter lamp power supply.
• Test Films, a vailable from Dolby Lab ora tories or equipment deale rs (Figures 2-1
through 2-7). We r ec ommend that you mak e loop s of these test films, lon g
enoug h to go th rough the entire projector film pa th so that a zimu th an d la teral
film pos ition adju stments can be made accurat ely.
Figure 2 - 1.
Figure 2 - 2.
Dolby Tone – Cat. No. 69T.
Pink Noise – Cat. No. 69P.
Figure 2 - 3.
1kHz, Crosstalk/Cell Alignment – Cat. No. 97.
2-2
Figure 2 - 5.
Figure 2 - 6.
Figure 2 - 4.
SMPTE Buzz Track.
Stereo Optical Surround Level – Cat. No. 151B.
Illumination Uniformi t y – Cat. No. 566.
JIFFY
TEST FILM
Cat. No. 251 SR•D—A subjective film for testing theatre sound
Figure 2 - 7.
“Jiffy” Test Fi l m – Cat. No. 251 SR/Digital.
Additional te st films used dur in g Dolby D igita l system installation:
•••• Cat. No. 1010 Sync Test
•••• Cat. No. 1011 Channel ID
•••• Cat. No. 1012 Dolby Level
RECORDED IN
Running Time:
Picture format:
Dolby, the Double-D symbol and Dolby Stereo are trademarks
6 minutes
1.85:1 widescreen or
2.35:1 anamorphic
Sound formats:
10
05
digital
analog
Dolby Laboratories Inc. • 100 Potrero Avenue
San Francisco, CA 94103-4813
Telephone 415-558-0200 • Facsimile 415-863-1373
of Dolby Laboratories Licensing Corporation
S96/10117/11146
INSTALLATION AND JUMPERS
Do NOT connect the CP500 to mains power until all connections have been made
and all jumpers have been checked or set.
If air-conditioning noise is audible in the theater, arrange for lubrication of the
motor, fan bearings, adjustment of belts and drives, and cleaning of filters t o reduce
the ambient noise to a minimum. If the air-conditioning cannot be repaired switch it
off while the CP500 is being aligned.
3.1 Replacing an Existing Sound System
If the CP500 replaces an existing cinema sound system, play a typical film before
yo u remov e the old system so you w ill hav e a ben chmar k for compa ris on to the new
system. It can also serve as a check of the positioning of the exciter lamp, the
focusing of the soundtr ack lens, and the condition of the solar cell.
SECTION 3
3.1.1 Before playing the film:
• Verify that the existing power amplifiers are in good working order.
• Verify that the existing speakers are in good wo r king order, and that
there is no loose or missing hardware, stru ctural parts, or damaged
drivers in the enclosures.
• Verify that all wiring is present and properly connected and that
crosso vers are operating and are correctly adjusted.
• Check the polarity of the speaker connections.
• Verify that there are adequate earth (gr ound) connections.
• Verify that radio interference problems are adequately resolved.
3.1.2 While playing the film:
While you run the film, listen ca refully in va rious parts of th e theater for audio
system problems:
• Hum.
• Noise, clicks, pops.
• Distorted so und.
• Poor to nal balance ( lack of high-frequency or bass content).
These problems must be resolved before you can proceed with the new installation.
3.1.3 Disconnect the old system
• Disconnect power from the existing cinema sound equipment.
• Disconnect all cabling from the existing sound processor. Leave the
cables connected to the power amplifiers, booth monitor, etc.
3.2 Mount the CP500
To avoid heat problems, do not mount t he Do lby CP500 immedia tely a bove or
below the power amplifiers. Locate the power amplifiers away from the CP500 to
avoid hum pickup problems. Always leave a 1U (43 mm, 1.75") space above and
below the CP500 t o provide adequate ventilation. Install an air guide or baffle to
deflect hot air from equipment below the CP500.
To ensure go od gro und contact, install star washers on all or at least one rack
mounting screw per piece of equipment (Figure 3-1). Th is will als o aid in the
prevention of electrical noise problems.
3-2
Figure 3 - 1.
Install star washers to rack mounting screws
Proper shielding and termination of cables and cable assemblies are also very
important. Be su re to follow the meth ods shown in th e w iring d iag rams.
If you a re ins talling a Dolby Cat. No. 700 Digital Soundtrack Reader, refer to its
installation man ua l for mou nting an d a lignment.
3.3 Connect the CP500
Refer to the approp r iate fold-out page ( at the end of this section) showing
connections to the various CP500 model configurations.
Make output signal connections by inserting stripped and tinned leads into the
supplied cable connectors and tightening each lead in place by means of the integral
set screw. The cable connectors are then plugged into place at the cor r esponding
locations shown on the fold-out wiring diagram. Shields must be connected as
shown in the fold out page to avoid radio frequency interference.
NOTE
:
Follow all local codes and regulations covering electrical wiring. It is recommended that conduit be
used for wiring runs.
.
Green plastic connector shells have been included in your installation kit for use in countries which are
governed by the E MC directi ves.
The shells
must
be used as noted on the fold-out pages.
3-3
3.3.1 Connect Motor Start Relays
For two-pro jecto r installations, motor st ar t relays are required for projecto r
changeover. Digital data on the soundtrack is read in advance of the picture,
therefore an advanced changeover signal is required (see Appendix C). Projector
motor st ar t contact closures provide this signal to the CP500. Isolat e d contact
closures from mechanical or opto - isolated relays wired across projector motors
must be used. Refer to the Installat i o n Wi ri n g Power and Control diagram at the
end of this section.
Signal lev els :
Motor St ar t Less than 1 Vdc with respect to signal ground.
Moto r Off: Greater than 3.5Vdc, less than 18Vdc.
Re fer to the unit c onnections fo ld-out diagram for d etails ( located at the end of this
manual). For single projector installations, a prewire connector is supplied.
(Models CP500-D, and - 70)
3.3.2 Connect Remote Controls
The CP500 is equipped for use with three types of remote controls: the Cat. No .
689, and Cat. No. 734, which are offered by Dolby Laborator ies, and an auditorium
fader, which can be made from parts purchased at an any electronics store.
The Cat. No. 689 CP500 Remote Control duplicates the front panel format
selection, fader, and mute controls of the CP500.
The Cat. No. 734 CP500 Remote Fader consists of a shaft encoder with LEDs to
indicate the fader setting.
The auditorium fader is a 100k linear pot wired as a variable resistor, with
minimum resistan ce corresponding to fade r 10.
Details on how to connect any of these remotes t o the CP500 are shown in the
Installa t i o n Wi ri n g Power and Control drawing located at t he end of this section.
3-4
3.3. 3 Connec t ion of Sola r Cell Boa rds
In contrast to t r aditional solar cells, the Cat. No . 655 and other solar cell circuit
boards used by several projector manufacturers are act ive devices with their own
power supply. Some care needs to be given to the wiring between the board and the
CP500 in order t o avoid grounding problems and to provide immunity to RF
interference. In principle, this means separating the audio ground connections and
the RF shielding screen connections.
The 0V point (audio ground) must be connected from the basement reader card to
the CP500 by a separate wire (or wires) along with the audio signal wires. The
cable shield (screen) must be kept separate from the audio ground connections. It
must be connected only to the chassis or enclosure of the equipment at each end.
Th e following diagrams ( Figures 3-2 and 3-3) sho w two connectors on the board.
The three pin connector, J1 is used for the power supply. The signal output
connector J2 pr ovides six output pins; two each for the "balanced" left and right cell
outputs, and two 0V audio gro und connections.
NOTE:
The following tables show the Right channel appearing on pins 1, 2, and 3 of the 6-pin connector J2.
The physical orientation of the board mounting in the projector and the orientation of the connector body
mounting on the board affect which channel appears on which pins of the connector.
allocations for the channels will vary depending on mounting arrangements of the board and
connector
. The J2 connector pin solder hole with a square outline is pin 1.
J2 Pin Number Signal
1
2 Signal Ground 2 Signal Ground
3
4
5 Signal Ground 5 Signal Ground
6
Right
Right –
Left
+
Left
–
+
OR:
J2 Pin Number Signal
1
3
4
6
Be aware that pin
Left
-
Left
+
Right
-
Right
+
There must be a connection between the ground pins at the Cat. No . 655 solar cell
circuit board and the audio common in the CP500. This connection must
not
use
the shield of the optical input cable, otherwise RF energy can be imposed on the
CP500 ground system.
Pin numbers 6 and 9 of each 9-pin D connector ("Pro jecto r ") on the CP500 allow
these connections to be made. The wire that connects either of these pins to t he
Cat. No. 655 audio ground should pass inside the same shield as the optical input
cables and not connect with the shield at any point.
* Ground Wire on J2 Pin 2 is Optional
* Ground Wire on J2 Pin 5 is Required
3-5
J2
Cinema Processor
Chassis Ground
J1
Figure 3 - 2.
Wi r i ng using two 3-wire shielded (screened) cables.
* Ground Wire on J2 Pin 2 is Optional
* Ground Wire on J2 Pin 5 is Required
J2
Cinema Processor
Chassis Ground
J1
Figure 3 - 3.
Wi r i ng using one 5 or 6-wire shielded (screened) cable.
3.4 Check and Set Jumpers
Next, check the following jumpers located on each circuit card. T he factory settings
for each jumper are shown in [brackets].
3-6
Cat. No. 661 Optical Pre-amplifier Card
POWER-UP PROJECTOR
SELECT JUMPER
CAT.NO. 661
Figure 3 - 4.
(Analog Soundtracks)
PROJECTOR 1
J2
Cat. No. 661.
J2 Power-up Projector Select (Wake-up state) [P 1]
Th is ju mpe r determine s which projector is s ele cte d w hen pow er is firs t
applied to the CP500. When J2 is set to “P1”, Projector 1 is selected at
power up. When J2 is set to “P2”, Projector 2 is selected at power up. The
jumper is set to "P 1" at the facto r y.
PROJECTOR 2
DS503
PROJ 1
SIG1
DS501
GND
SIG 2
PROJ 2
Cat. No. 681 Analog Switch Card
PHANTOM MIC POWER
FOR EQ MIC
J3
C63
C64
IC9
IC6
IC8
IC7
Figure 3 - 5.
CAT.NO. 681
Cat. No. 681.
L1100
J3 Equalization Microphone Phantom Power [OFF]
This jumper enables a phantom power sour ce for theater equalization
microphones which require phantom power t o operate. When the jumper is
set to the “ON” position, phantom power (15V) is supplied to the EQ
microphone jack and the rear panel microphone connector.
DS100
DS200
CW
RV101
NONSYNC1 L
CW
RV201
R135
NONSYNC1 R
CW
RV100
R235
NONSYNC2 L
ONOFF
CW
RV200
NONSYNC2 R
J2
CW
RV1100
EQ MIC
CW
RV2100
SIG MIC
Cat. No. 682 Analog Output Card
3-7
Figure 3 - 6.
Crossover Select Jumpers [NO]
J3 Left Channel
J4 Center Channel
J5 Right Channel
J901 Bypass Audio Channel
These jumpers rout e the designated signals through an optional Cat. No. 683
crosso ver car d. If the Cat. No. 683 car d is installed, these jumpers should be
set to the “YES” position. If the optional Cat. No. 683 is not present, these
jumpers should be set to the “NO” position. The jumpers are set to the “NO”
position at the factor y.
NOTE
:
If bypass audio is routed to the optional Cat. No. 683 crossover card, the bypass portion of the
crossover circuitry must be functioning in order to produce a bypass audio output.
J900 Bypass Calibration
Th is ju mpe r inse rts a c alibrated pin k noise signal in to th e bypass system for
level a nd (optiona l) crossover a djustments . The calibra tion signal is enable d
when the jumper is in the “BCAL” position and is disabled otherwise.
NOTE
: It is important to move the jumper to the disabled position after calibration is complete so that
the bypass signal path remains completely isolated from any possible erroneous signals in the signal
path.
Cat. No. 682.
J902 Bypass Channel Output Level Select [LO]
This jumper, along with the bypass gain adjustment pot ent iometer (RV901),
adjusts the level of the bypass channel. The jumper provides a “coarse” gain
se tting and the potentiometer pr ovides a “fin e” ga in adju stment. The “HI”
jumper position can be used to produce a higher output level range on the
bypass channel. This ju mpe r is factor y set to the “ LO” p osition.
NOTE
:
If Cat. No. 683 Crossover card is installed, t he preferred se tting for this jumper is HI.
J2 L and R Surround High-Pass Filter Frequency Select [50Hz]
This header sets filter circuits to t he indicated high-pass frequency. Signals
below this frequency are attenuated in order t o prevent distort ion or damage to
surround speakers t hat ar e unable to handle extreme low frequency energy.
NOTE
:
The function of the Bypass Output Level control changes to Bypass Low Frequency
Balance Control if a Cat No. 683 Crossover Card is installed.
3-8
Cat. No. 683 Crossover Card (Optional)
500 Hz500 Hz500 Hz
BYPASS
RN600
LEFT SURROUND
RIGHT SURROUND
CROSSOVER FREQ
ACTIVE
50 Hz
RN400
500 Hz
BASS SPEAKER
SELECTOR
100 Hz
CROSSOVER FREQUENCY
SETTING HEADERS
Freq setting for large
horn is shown.
LEFT
CENTER
RIGHT
RN102RN202RN302
CAT. NO. 683
Figure 3 - 7.
Cat. No. 683 – Crossover Frequency Setting Headers.
Crossover Frequency Setting Headers- Screen Channels
RN102 Left Channel
RN202 Center Channel
RN302 Right Channel
RN600 Bypass
These headers select the desired crossover frequency. For large horns, the
correct setting is usually 500 Hz. For small horns, 800 Hz is usually
correct. Check the loudspeaker manufacturer’s specifications for details.
Be sure to select the same Bypass crosso ver frequency header as the
screen channels use. The headers are shipped with each card.
NOTE
: Custom settings are possible. See
LOW
FREQUENCY
DELAY
CAT. NO. 683
Figure 3 - 8.
Cat. No. 683 – Low Frequency Time Delay Enable Jumpers
J100
J200
J300
DELAY
NO DELAY
DELAY
NO DELAY
DELAY
NO DELAY
Appendix B, Cat. No. 683
BYPASS CHANNEL
HIGH FREQUENCY GAIN
J600
LEFT
CENTER
RIGHT
DELAY SETTING HEADERS
LOHI
RN101RN201RN301
1.9 mSEC 1.9 mSEC 1.9 mSEC
Delay setting for large
horn is shown.
.
BYPASS LEVEL
L
HF BALANCE
HF BALANCE
C
R
HF BALANCE
L
S
LF BALANCE
R
S
3-9
Low Frequency Time Delay Enable Jumpers [DELAY]
J100 Left Channel
J200 Center Channel
J300 Right Channel
These jumpers allow the low frequency port ion of the designated channels
to be delayed when the jumper is placed in the “DELAY” position. This
compensates for the time offset caused by high frequency drivers being
behind the low frequency drivers in contemporary stage speakers. With the
jumper in the "DELAY" position, sound produced by the low frequency
speakers is delayed to cause the low and high frequency energy to reach
t he listen er at the same time. T here is no low frequency delay when the
jumper is set to “NO DELAY”. The factory sett ing is “DELAY”.
Low Frequency Time Delay Setting Headers
RN101 Left Channel
RN201 Center Channel
RN301 Right Channel
For large h orns, the correct d ela y setting is u su ally 1.9 ms . For s mall
horns, 0.8 ms is usually correct. The headers are shipped with each card.
NOTE
: Custom settings are possible. See
Appendix B, Cat. No. 683
.
RN400 L and R Surround Low-Pass Filter Frequency Select [50Hz]
This header sets filter circuits to t he indicated low-pass frequency. Signals
below this frequency are sent to the surround channel low frequency
drivers. Both the Cat. No. 682 Output card and t he Cat. No. 683 have
reversible filter headers for the surround channels. Ensure that t he headers
on both cards are set to the same frequency, chosen to suit the low
freq ue ncy h andling cap ability of the surround sp ea ke rs in use. If you ha ve
surro u nd bass drivers, it is probably best t o set bo th headers to
100 Hz in order to improve the low frequency power handling abilit y of
the surround channel. The factory sett ing is 50Hz.
J600 Bypass Channel HF Output Level Range [LO]
This jumper selects between two gain ranges for t he bypass channel high
frequency output. The “HI” setting has approximately 12 dB higher
output level than the “LO” setting. The factory setting is “LO”.
3-10
3.5 Install Ci rcuit Cards - Card Descriptions
If they are not already installed in the CP500 unit, install all of the cards for your
system as shown below for each CP500 version. Note that the noise reduction
modules (Cat. No . 222SR-A) are shipped uninstalled. Th is is to prev ent da mag e
during shipment due to their weight. Sho u ld it ever be necessary to ship the CP500
again, be sure to remove these from the unit and pack them separately.
NOTE
: Cat. No. 222SR-A modules are primarily intended for playback of 35mm photographic soundtracks,
and have headroom capabilities based on that medium. As a result, use of Cat. No. 222SR-A modules are not
recommended for playback of 35 mm magnetic print-masters or SR encoded 70mm magnetic film. Contact
Dolby Laboratories for further information.
Model CP500-D
Cat. No. 222SR/A Module
Provides two channels of Dolby A-type noise reduction and Dolby SR processing.
Cat. No. 661 Optical Preamplifier Card *
Must be functioning for bypass operation
*
Amplifies the outputs of the analog soundtrack solar cells in the selected projector.
Projecto r select logic.
Provide s slit loss equalization.
Cat. No. 681 Input Switch Card
Stereo analog multiplexer for selecting signal to be fed to noise reduction cards.
Audio sample rate clock.
Cat. No. 675A Digital Signal Processing Cards (2)
Matrix decoder for Dolby Pro-Logic.
No n-sync processing.
Signal generation and signal analysis functions.
Twenty-seven band 1/3 octave equalization for L, C, R channels.
Nine band octave equa lizatio n for L a nd R su rround channels.
Equalization for subwoofer channel.
Cat. No. 685 6-Channel Analog to Digital Converter Card
Used for external 6-channel analog inputs (optional).
Cat. No. 662 6-Channel Digital to Analog Converter and Voltage
Controlled Amplifier Card
Converts digital data to analog audio and includes the main fader voltage controlled
amplifier.
Cat. No. 682 Analog Output Card *
Must be functioning for bypass operation
*
Switches and routes output channels.
Contains treble and bass control circuits.
Generates hearing impaired output and mid-surround output.
Contains bypass power regulator and output amplifier.
Cat. No. 684 System Controller Card
Mu st be present for lev el c on trol in bypass mode. Bypass will fu n ction at a fix ed
level if this car d is not pre sent or ope ra tional.
3-11
Contains Microprocessor.
Controls front pa nel displa y and controls.
Contains interface for remotes and automation equipment.
Cat. No. 683 Crossover Card (Optional)
Provides active high- an d low -pass filters on L , C, and R signals fo r bi-amplified
installa tion s.
Provides low frequency surround channel outputs.
Provides low freque n cy d ela y for time alignment of L, C, and R low fr eq ue ncy
drivers.
Contains bypa s s crossover and must be p rese nt fo r bypass operatio n in bi-a mplified
systems.
Dolby Digital Soundtrack Processing System
Cat. No. 670 Video Front-end Card
Digitizes the video data received from the film sou ndtrack r ea de r.
Cat. No. 671 DSP Cards (2)
Processes the digitized video data and extract s the AC-3 bitstr eam.
Cat. No. 673 System Services Card
Contains the operat ing software.
Cat. No. 675A Digital Signal Processing Card
This additional Cat. No. 675A provides Dolby AC3 decoding.
Cat. No. 680 Bit Rate Converter Card
Converts PCM audio from the variable projector r ate clock to a stable PCM
audio sample rate.
Model CP500-D/300
Contains the same boards as the CP500-D above, except Cat. No . 300 modules are
used in place of the Cat. No. 222SR/A modules. A Cat. No. 668 Adapter Card is
required. Used primarily in preview theaters and studios.
Model CP500-SR
Contains the same boards as the CP500-D above except without the Dolby Digital
soundtrack pr ocessing system cards.
Model CP500-70
Contains the same boards as the CP500-D, and additionally:
Cat. No. 222A Modules (2)
Provides four additional channels of Dolby A-type noise reduction bringing the total
number of noise reduced channels to six.
Cat. No. 669 Adapter Card
Us ed for installing th e tw o Cat. No. 222A cards above.
Cat. No. 685 6-Channel Analog to Digital Converter Card
Used for external 6-channel analog inputs.
3.6 Bypass Power Wiring
For emergency operation, t he CP500 co mes equipped with an independent external
mains power module. If the main power supply or processor circuitry fails, the unit
will automatic ally switc h to byp as s operation , allowing the show to contin ue with
limit ed sound processing functions. T he unit can also be switched manually to
bypass operation by pu s hing a butt on loc ated inside the front panel and labeled
POWER/BYPASS.
In some cou ntr ies the pr imary cable for the modu le ma y n ot hav e a mains plug
fitted. These unterminated leads must be as follows:
Brown wire -- Live or hot Blue wire -- Neutral
NOTE
:
If you are uncertain about the wiring of your mains outlet do not use it. Consult a qualified
electrician.
3-12
For safety reasons, the bypass power module contains an internal fuse.
mains power until the output wires have been connected to the CP500. Otherwise, shorted secondary wires
will blow the fuse.
DO NOT
connect the module to AC
Install the ferrite clamp on the bypass power supply cable where it connects to the
back of the CP500. Open the clip and wrap the bypass power supply wire around
one side of the ferrite three times so that t he loo ps lie inside the ferrite channel.
Close the clip until it snaps firmly closed. Make sure that the bypass power supply
cable is not pinched between the halves of the ferrite clamp.
3.7 Power On
Connect the bypass power module to the CP500 and plug it into AC mains. The
unit is shipped with the POWER/BYPASS switch set to BYPASS. The front panel
BYPASS LED should light.
Open the front panel and confirm that one of the Pro jecto r S elect LEDs is on.
Projector 1 or Projecto r 2 is selected by Jumper J2 on the Cat. No. 661 (See
manual section 3.4).
Connect the main power cable. Then, push the Bypass/Power button to turn on the
CP500.
3-13
When power is first applied, the first
screen that appears displays the revision
level of t he so ftwa re. Next, a brief
"Loading System" message is displayed.
In a few seconds, the Current Forma t
screen appears. This is the normal screen
that t he projectionist or any other
operat or would see and the only screen
t h ey w ill n ee d to see for ordin ary
purposes.
Run quick checks to co nfirm that:
• Rotating the front panel knob changes the numbers displayed next to it.
• Pushing the MUTE button causes the MUTE LED to flash.
• Pushing any of the buttons on each side of the display causes the mute LED to
go off and the LED next to the bu tto n pushe d to go on (except buttons next to
" " on the display).
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