Graham-Patten SoundPals User manual

SoundPals™
User's Guide
interstage
Phistersvej 31, 2900 Hellerup, Danmark
Telefon [phone], fax [phone]
www.interstage.dk
-pro audio with a smile

Printing History
SoundPals™User’s Guide •Rev. B •January 1998 •Printed in U.S.A.
Part Number 08-2022-00A •The information contained in this guide is
subject to change without notice or obligation.
Copyright
© 1998 GRAHAM-PATTEN SYSTEMS, INC.
Contents of this publication may not be reproduced in any form without the
written permission of Graham-Patten. Reproduction or reverse engineering
of copyrighted software is prohibited.
FCC Compliance
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 the 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 own expense.
Warranty Statement
Graham-Patten warrants that the equipment it manufactures is free from
defects in workmanship and materials and meets applicable published
specifications. Equipment that has been operated within published ratings and
has not been subjected to abuse or modification, and which fails because of
such defects, will be replaced or repaired at the Company’s discretion if it is
returned, freight prepaid, to Graham-Patten within 180 days of receipt.
This warranty supersedes all other Warranties, express or implied. Graham-
Patten is not liable for any consequential damages.
NOTE Filling out and returning the warranty registration card will
extend your SoundPals warranty to one year.
Company Address

GRAHAM-PATTEN SYSTEMS, INC.
P.O. Box 1960
Grass Valley, California 95945
Telephone: [phone], (530) 273-
8412 Fax: [phone]
e-mail: [email protected]
World Wide Web: http://www.gpsys.com

SoundPals User's Guide Table of Contents • i
Table of Contents
Introduction 1
About This Guide......................................................................................1
What are SoundPals .................................................................................2
Documentation Conventions..................................................................4
Documentation Terms ..............................................................................4
Abbreviations............................................................................................5
Signals and Values....................................................................................5
Warnings....................................................................................................5
Looping.......................................................................................................6
Unpacking and Inspection.......................................................................6
Power Supply Note...................................................................................6
DAC-20 7
About the DAC-20....................................................................................7
DAC-20 Installation................................................................................10
Connecting Power...........................................................................10
Connecting Inputs ..........................................................................10
Connecting Outputs .......................................................................10
DAC-20 Operation...................................................................................11
Using the Gain Controls .................................................................11
Using the Headphone Monitor.....................................................11
DAC-20 Interconnection........................................................................12
DAC-20 Internal Jumpers.......................................................................14
DAC-20 Troubleshooting......................................................................15
DAC-20 Specifications...........................................................................16
Audio Specifications......................................................................16
Environmental Specifications and Dimensions..........................16

ii • Table of Contents SoundPals User's Guide
ADC-20 17
About the ADC-20..................................................................................17
ADC-20 Installation................................................................................20
Connecting Power...........................................................................20
Connecting Inputs ..........................................................................20
Connecting AES Reference...........................................................20
Connecting Outputs .......................................................................21
ADC-20 Operation...................................................................................21
Using the Gain Controls .................................................................21
Setting the Sample Frequency.......................................................21
ADC-20 Interconnection........................................................................22
ADC-20 Internal Jumpers.......................................................................24
ADC-20 Troubleshooting......................................................................25
ADC-20 Specifications...........................................................................26
Audio Specifications......................................................................26
Environmental Specifications and Dimensions..........................26
DFADE-2 27
About the DFADE-2...............................................................................27
DFADE-2 Installation.............................................................................30
Connecting Power...........................................................................30
Connecting Inputs ..........................................................................30
Connecting Outputs .......................................................................30
DFADE-2 Operation................................................................................32
Using the Gain Controls .................................................................32
Aligning Outputs ............................................................................32
Setting the DIP Switches................................................................33
DFADE-2 Interconnection.....................................................................34
DFADE-2 Remote Control......................................................................36
Remote Control Connection..........................................................36
Remote Control Operation.............................................................38
DFADE-2 Internal Jumpers....................................................................40
DFADE-2 Troubleshooting...................................................................41
DFADE-2 Specifications........................................................................42
Audio Specifications......................................................................42
Remote Control Specifications......................................................42
Environmental Specifications and Dimensions..........................42

SoundPals User's Guide Table of Contents • iii
DMIX-41 43
About the DMIX-41................................................................................43
DMIX-41 Installation..............................................................................47
Connecting Power...........................................................................47
Connecting Inputs ..........................................................................47
Connecting Outputs .......................................................................48
DMIX-41 Operation................................................................................48
Local Operation...............................................................................48
AC-3 Operation................................................................................49
DMIX-41 Interconnection......................................................................49
DMIX-41 Remote Control......................................................................52
Remote Control Connection..........................................................52
Remote Control Operation.............................................................53
DMIX-41 Internal Jumpers.....................................................................55
Setting Output Channel Status.....................................................56
DMIX-41 Troubleshooting....................................................................57
DMIX-41 Specifications.........................................................................58
Audio Specifications......................................................................58
Remote Control Specifications......................................................58
Environmental Specifications and Dimensions..........................58
DMIC-20 59
About the DMIC-20................................................................................59
DMIC-20 Installation..............................................................................62
Connecting Power...........................................................................62
Connecting Inputs ..........................................................................62
Connecting AES Reference...........................................................62
Connecting Outputs .......................................................................63
Using Phantom Power....................................................................63
DMIC-20 Operation.................................................................................63
Adjusting Microphone Sensitivity...............................................63
DMIC-20 Interconnection......................................................................64
DMIC-20 Internal Jumpers.....................................................................66
DMIC-20 Troubleshooting....................................................................67
DMIC-20 Specifications.........................................................................68
Audio Specifications......................................................................68
Environmental Specifications and Dimensions..........................68

iv • Table of Contents SoundPals User's Guide
DA-14 69
About the DA-14.....................................................................................69
DA-14 Installation...................................................................................72
Connecting Power...........................................................................72
Connecting Inputs ..........................................................................72
Connecting Outputs .......................................................................72
DA-14 Operation and Application........................................................73
DA-14 Interconnection...........................................................................74
DA-14 Internal Jumpers..........................................................................76
DA-14 Troubleshooting.........................................................................77
DA-14 Specifications..............................................................................77
Environmental Specifications and Dimensions..........................77
Audio Specifications......................................................................78
DATS 79
About the DATS.....................................................................................79
DATS Installation...................................................................................80
DATS Specifications..............................................................................80
Appendix A. Inside the Module 81
In This Appendix.....................................................................................81
Before You Begin ....................................................................................81
Opening The Module .............................................................................82
Closing The Module...............................................................................83
Appendix B. External Power 85
About Power Supplies............................................................................85
CE Compliance.........................................................................................85
Portable Power Sources..........................................................................85
Power Supply Specifications.................................................................86
Power Supply Sources............................................................................86
Appendix C. Rack Tray 87
In This Appendix.....................................................................................87
Index 89

SoundPals User's Guide Introduction • 1
Introduction
About This Guide
This guide provides installation and operating instructions for Graham-
Patten’s full line of SoundPals™modular digital audio processing
products. The following chapters are included:
•The “Introduction” chapter describes the guide and introduces
the SoundPals products.
•The “DAC-20” chapter provides information on the DAC-20
AES digital-to-analog converter.
•The “ADC-20” chapter describes the ADC-20 stereo analog-
to-digital AES converter.
•The “DFADE-2” chapter describes the DFADE-2 stereo AES
two-channel digital fader.
•The “DMIX-41” chapter provides information on the DMIX-41
four-channel digital mixer.
•The “DMIC-20” chapter describes the DMIC-20 stereo digital
microphone pre-amplifier.
•The “DA-14” chapter describes the DA-14 AES 1-in 4-out
distribution amplifier.
•The “DATS” chapter describes the DATS (Digital Audio
Transmission System) converters.
•Appendix A, “Inside The Module” provides instructions for
opening and closing all SoundPals modules.
•Appendix B, “External Power” provides generic power supply
information for all SoundPals modules.
•Appendix C, “Rack Tray” provides instructions for installing
SoundPals modules in the optional Rack Tray.
A comprehensive index is also provided for your reference.

2• Introduction SoundPals User's Guide
For simplicity and convenience in locating information in this guide,
each SoundPals chapter follows the same basic outline:
•Product Description •Interconnection
•Installation •Internal Jumpers
•Operation •Troubleshooting
•Remote Control (if applicable) •Specifications
What are SoundPals
Each Graham-Patten SoundPals module is essentially a digital audio
building block that can be used independently, or interconnected to
perform more advanced mixing and processing functions.
The following SoundPals modules are described in this guide:
•The DAC-20 is a stereo, 20-bit, AES digital-to-analog
converter that offers stereo headphone monitoring, automatic
detection and deemphasis, LED indicators for emphasis and
valid AES input, and analog output level adjustments.
•The ADC-20 is a stereo 20-bit, analog-to-digital AES converter
that offers adjustable input level, active balanced and
unbalanced outputs, and LED level indicators for normal and
overload conditions.
•The DFADE-2 is a stereo digital fader that offers local level
adjustment, unity gain switches for each channel, remote fade,
crossfade, channel-swapping and pan, 20-bit or 24-bit
processing, active balanced and unbalanced outputs, and LED
status indicators.
•The DMIX-41 is a four stereo-channel digital mixer that offers
remote input selection capability, 20-bit or 24-bit processing,
active balanced and unbalanced outputs, plus LED indicators
for continuous input status.
•The DMIC-20 is a dual microphone pre-amplifier with a built-in
20-bit analog-to-digital AES converter. The unit offers
adjustable microphone sensitivity, LED level indicators, and
coupling for phantom power.
•The DA-14 is a one-input, four-output “data regenerator” for
distributing AES digital audio signals. Versions are available
in both AES3 and AES3ID formats.