DigiDesign SYNC HD User Manual
SYNC HD
Firmware Version 2.1.1
™
Legal Notices
This guide is copyrighted ©2007 by Digidesign, a division of
Avid Technology, Inc. (hereafter “Digidesign”), with all rights
reserved. Under copyright laws, this guide may not be
duplicated in whole or in part without the written consent of
Digidesign.
003, 003 Rack, 96 I/O, 96i I/O, 192 Digital I/O, 192 I/O,
888|24 I/O, 882|20 I/O, 1622 I/O, 24-Bit ADAT Bridge I/O,
AudioSuite, Avid, Avid DNA, Avid Mojo, Avid Unity, Avid Unity
ISIS, Avid Unity MediaNetwork, Avid Xpress, AVoption,
AVoption|V10, Beat Detective, Bruno, Command|8, Control|24,
D-Command, D-Control, D-Fi, D-fx, D-Show, DAE, Digi 002,
Digi 002 Rack, DigiBase, DigiDelivery, Digidesign, Digidesign
Audio Engine, Digidesign Intelligent Noise Reduction,
Digidesign TDM Bus, DigiDrive, DigiRack, DigiTest,
DigiTranslator, DINR, DV Toolkit, EditPack, Impact, Interplay,
M-Audio, MachineControl, Maxim, Mbox, MediaComposer,
MIDI I/O, MIX, MultiShell, OMF, OMF Interchange, PRE,
ProControl, Pro Tools M-Powered, Pro Tools, Pro Tools|HD,
Pro Tools LE, QuickPunch, Reel Tape, Reso, Reverb One,
ReVibe, RTAS, Smack!, SoundReplacer, Sound Designer II,
Strike, Structure, SYNC HD, SYNC I/O, Synchronic, TL Space,
Velvet, and X-Form are trademarks or registered trademarks of
Digidesign and/or Avid Technology, Inc. All other trademarks
are the property of their respective owners.
Product features, specifications, system requirements, and
availability are subject to change without notice.
PN 9106-56838-00 REV A 08/07
Comments or suggestions regarding our documentation?
email: techpubs@digidesign.com
WARNING: This product contains chemicals, including lead,
known to the State of California to cause cancer and birth
defects or other reproductive harm. Wash hands after
handling.
Communications & Safety Regulation Information
Compliance Statement
The model SYNC HD complies with the following standards
regulating interference and EMC:
• FCC Part 15 Class A
• EN55103 – 1, environment E4
• EN55103 – 2, environment E4
• AS/NZS 3548 Class A
•CISPR 22 Class A
Radio and Television Interference
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.
DECLARATION OF CONFORMITY
We, Digidesign,
2001 Junipero Serra Blvd.
Daly City, California 94014-3886, USA
650-731-6100
declare under our sole responsibility that the product
SYNC HD
complies with Part 15 of FCC Rules.
Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device
must accept any interference received, including interference
that may cause undesired operation.
Communications Statement
NOTE: 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.
Changes or modifications to this product not authorized by
Digidesign, Inc., could void the Certification and negate your
authority to operate the product.
Canadian Compliance Statement:
This Class A digital apparatus complies with Canadian ICES003
Cet appareil numérique de la classe A est conforme à la norme
NMB-003 du Canada
Australian Compliance
European Compliance
Safety Statement
This equipment has been tested to comply with USA and
Canadian safety certification in accordance with the
specifications of UL Standards: UL60065 7th /IEC 60065 7th
and Canadian CAN/CSA C22.2 60065:03. Digidesign Inc., has
been authorized to apply the appropriate UL & CUL mark on its
compliant equipment.
Warning
Important Safety Instructions
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance
with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9) Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with one
wider than the other. A grounding type plug has two blades and
a third grounding prong. The wide blade or the third prong are
provided for your safety. If the provided plug does not fit into
your outlet, consult an electrician for replacement of the
obsolete outlet.
10) Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
11) Only use attachments/accessories specified by the
manufacturer.
12) Use caution when replacing the Lithium battery in the FOH
Rack unit. There is danger of explosion if battery is incorrectly
replaced. Replace only with the same or equivalent type.
13) Unplug this apparatus during lightning storms or when
unused for long periods of time.
14) Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate
normally, or has been dropped.
contents
Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SYNC HD Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Digidesign Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
About the Pro Tools Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
About www.digidesign.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 2. Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
MachineControl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Synchronization and Time Code Connections to Machines, Decks, and Other Devices . . . . . . . 10
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Configuring the Device ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Configuring the SYNC HD from Pro Tools HD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
MachineControl Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Software Configuration for the SYNC Setup Software Utility . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Chapter 3. SYNC HD Hardware and Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SYNC HD Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SYNC HD Back Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SYNC Setup Software Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Chapter 4. Using SYNC HD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SYNC HD Controls in Pro Tools, SYNC Setup Software Utility, and the SYNC HD Front Panel . . . 34
Front Panel Generator/Parameter Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Clock References and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Positional Reference and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Compensating for Time Code Offsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Contents v
Generating & Regenerating Time Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Generating a Window Dub. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Chapter 5. Additional Operational Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Front Panel Generator/Parameter Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Using Fader Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Calibrating the SYNC HD Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Restoring Factory Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Managing and Selecting Video Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Appendix A. Additional Synchronization Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Video and VITC Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
LTC Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Auto-Switch LTC/VITC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Digital Clock Signal Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Bi-Phase/Tach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Pilot Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Appendix B. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Appendix C. Wiring Diagrams and Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
LTC Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Bi-Phase/GPI/Pilot Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Bi-phase/Tach OptoCoupler Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
GPI Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
GPI (TTL)/MTC Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
GPI (opto) Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Connector Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
SYNC HD Cable Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Bi-phase/Tach/GPI/Pilot Port Interfacing Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
SYNC HD Guidevi
chapter 1
Introduction
Welcome to the Digidesign SYNC HD, a multipurpose synchronization peripheral for
Pro Tools HD systems. The SYNC HD supports
all Pro Tools sample rates, and synchronizes to
most major time code and clock reference standards used in audio, video, film, and multimedia production.
The SYNC HD can also be used as a standalone
synchronization device.
SYNC HD with Pro Tools|HD Systems
With a Pro Tools|HD system, the SYNC HD provides highly accurate lock to time code. Most
SYNC HD settings are available directly from
within Pro Tools.
SYNC HD in Standalone Mode
The SYNC HD can be used as a standalone synchronization converter, time code generator,
clock generator and time code character generator. Throughout this guide, the term standalone
refers to systems using the SYNC HD but not using Pro Tools. When used as a standalone device
(known as “Standalone mode”), the SYNC HD is
connected to time code or clock signals, and is
configured from the front panel.
Optionally, while in Standalone mode, the
SYNC HD can be controlled remotely from a
Windows computer using the SYNC Setup
software utility.
SYNC Setup Software Utility
(Windows Only)
The SYNC Setup software utility can be used
with or without Pro Tools to control all
SYNC HD features from any supported Windows computer.
Chapter 1: Introduction 1
SYNC HD Features
The SYNC HD supports all Pro Tools HD sample
rates (44.1, 48, 88.2, 96, 176.4, and 192 kHz)
and supports industry standard SD (standard
definition) and HD (high-definition) video reference rates. The SYNC HD provides the following features with Pro Tools HD:
Supported Positional Reference Sources
•LTC
•VITC
•Bi-phase/Tach
• Internal Time Code Generator
• Serial Time Code
Other Features
• SYNC I/O Emulation for legacy software
support
• Front panel controls and a large LED display of time code and parameters
• Integrated control of the SYNC HD from
Pro Tools
• Time Code Character Generator
• Fader start, provided through GPI output,
for remote transport control from select
Pro Tools fader movement
• SYNC Setup software utility (Windows
only)
• Field-updatable firmware
Supported Clock Reference Sources
• Loop Sync
• Reference Video (SD and HD rates)
• Composite Video Input
• Word Clock
•AES/EBU DARS
• Pilot Tone
• Internal Crystal
•Bi-phase/Tach
•LTC
Output and Generation
• Loop Sync
• Digidesign Super Clock (256x sample
clock)
• Word Clock (1x sample clock)
• AES/EBU null clock (AES “digital black”)
• VITC (if a video input is present)
•LTC
•MIDI Time Code (MTC)
• Two 9-pin Sony P-2 protocol ports, for limited serial deck control with MachineControl-enabled systems
Available Controls in Standalone
Mode
If you are using the SYNC HD in Standalone
mode, you can control it with the SYNC Setup
software utility (Windows only), or with the
switches on the front panel of the SYNC HD.
SYNC Setup Software Utility
(Windows Only)
The SYNC Setup software utility gives you access
to all SYNC HD controls. The following
SYNC HD parameters are accessible only
through Pro Tools or the SYNC Setup software
utility:
• Variable Speed Override (VSO)
• Window burn parameters: While you can
turn the Window burn on or off from the
front panel, you cannot configure its display parameters without Pro Tools or the
SYNC Setup software utility.
See “SYNC HD Controls in Pro Tools,
SYNC Setup Software Utility, and the
SYNC HD Front Panel” on page 34.
SYNC HD Guide2
System Requirements
Compatibility Information
Digidesign can only assure compatibility and
provide support for hardware and software it has
tested and approved.
For a list of Digidesign-qualified computers, operating systems, hard drives, machine controllers and third-party devices, visit the Digidesign
website (www.digidesign.com).
SYNC HD with Pro Tools
To use the SYNC HD with Pro Tools HD, the following is required:
• A Digidesign-qualified Pro Tools|HD system
• An available DigiSerial port on the system’s
HD Core card
• An 8-pin to 8-pin serial cable (included) to
connect the SYNC HD to the DigiSerial port
on a Pro Tools PCI or PCIe card
SYNC Setup Software Utility
(Windows Only)
The optional SYNC Setup software utility requires the following:
A Digidesign-qualified Windows computer.
An available COM port or serial port on the
computer to connect to the SYNC HD. (You cannot run the SYNC Setup software utility from
the DigiSerial port on Pro Tools cards.)
The computer requirements for the SYNC
Setup software utility are different from the
computer requirements for Pro Tools. You
can run the SYNC Setup software utility
from slower computers.
A non-standard 8-pin to 9-pin cable is re-
quired to connect the SYNC HD to a COM port
or serial port on a Windows computer. Wiring
instructions for making the required cable are in
Appendix C, “Wiring Diagrams and Pin Assignments.”
If you use a custom serial cable between
Pro Tools and the SYNC HD, be sure the
cable supports hardware handshaking.
The maximum supported length for this
cable is 100 ft.
For more information, see Appendix C,
“Wiring Diagrams and Pin Assignments.”
For complete system requirements, visit the
Digidesign website (www.digidesign.com).
Digidesign Registration
Review the enclosed Digidesign Registration Information Card and follow the instructions on it
to quickly register your purchase online. Registering your purchase is the only way you can be
eligible to receive complimentary technical support and future upgrade offers. This is one of the
most important steps you can take as a new user.
Registering your purchase is the only way you
can be eligible to receive:
• Complimentary technical support
• Any available software updates
• Future upgrade offers
Chapter 1: Introduction 3
About the Pro Tools Guides
In addition to the printed guides that came with
your system, PDF versions of the Pro Tools
guides are installed automatically with
Pro Tools in the Documentation folder in the
Pro Tools folder. To view or print the PDF
guides, use Adobe Reader.
Conventions Used in This Guide
Digidesign guides use the following conventions to indicate menu choices and key commands:
:
Convention Action
File > Save Choose Save from the File
menu
About This Guide
This guide assumes:
• You understand the basics of synchronization and time code
• You know how to operate devices that send
or receive time code, such as a video deck
• You have an understanding of the time
code requirements for your projects
This Guide covers use of the SYNC HD with
Pro Tools HD version 7.3 and higher.
Use of tri-level synchronization rates requires
Pro Tools HD version 7.4 or higher.
For versions of Pro Tools lower than 7.3, the
SYNC HD can be set to emulate a
SYNC I/O. See the Digidesign website
(www.digidesign.com) for a version of the
SYNC I/O Guide that applies to your system.
Control+N Hold down the Control key
and press the N key
Control-click Hold down the Control key
and click the mouse button
Right-click Click with the right mouse
button
The following symbols are used to highlight important information:
User Tips are helpful hints for getting the
most from your system.
Important Notices include information that
could affect your data or the performance of
your system.
Shortcuts show you useful keyboard or
mouse shortcuts.
Cross References point to related sections in
other Digidesign guides.
SYNC HD Guide4
About www.digidesign.com
The Digidesign website (www.digidesign.com) is
your best source for information to help you get
the most out of your Pro Tools system. The following are just a few of the services and features
available.
Product Registration Register your purchase
online. See the enclosed Digidesign Registration
Information Card for instructions.
Support and Downloads Contact Digidesign
Technical Support or Customer Service; download software updates and the latest online
manuals; find the latest system requirements;
search the online Answerbase or join the worldwide Pro Tools community on the Digidesign
User Conference.
Training and Education Become a certified
Pro Tools Operator or Expert; study on your
own using courses available online, or find out
how you can learn in a classroom setting at a
certified Pro Tools Training Center.
Products and Developers Learn about Digidesign
products; download demo software; learn about
our Development Partners and their plug-ins,
applications, and hardware.
News and Events Get the latest news from
Digidesign or sign up for a Pro Tools demo.
To learn more about these and other resources
available from Digidesign, visit the Digidesign
website (www.digidesign.com).
Chapter 1: Introduction 5
SYNC HD Guide6
chapter 2
Installation and Configuration
Hardware Connections
The following are the primary hardware connections on a SYNC HD:
•AC Power
• Serial to a DigiSerial port on a Pro Tools PCI or
PCIe card, or a serial port on the computer
• Clock to Pro Tools audio interfaces
(Loop Sync or Super Clock)
• 9-pin to external machines (requires the
Digidesign MachineControl option)
• Synchronization, including positional and
clock references to and from remote machines
AC Power
The SYNC HD AC connector accepts a standard
AC Power Cable. The SYNC HD is auto powerselecting (100V to 240V) and will automatically
work with a standard modular cable to connect
to AC power receptacles in any country.
Serial Connections
Serial to Pro Tools Core Card
Pro Tools systems require a serial connection between the SYNC HD and an HD Core or
Accel Core card.
To connect the SYNC HD to an HD Core or
Accel Core card:
1 Make sure power is off on all equipment.
2 Connect one end of the included serial cable
to the SYNC HD Host Serial port.
3 Connect the other end to the DigiSerial port
on your HD Core card.
Do not use the DigiSerial port on any other
Pro Tools HD card in your system.
Chapter 2: Installation and Configuration 7
Serial Connections for the SYNC Setup
MTC OUT
HOST SERIAL
AC 100-240V, 50-60HZ, .5A 30W
VIDEO REF
9-PIN OUT 2
9-PIN OUT 1
WORD CLOCK (1x,256x)
VIDEO
L
T
C
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A
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S
I
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A
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S
O
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L
T
C
O
U
T
IN
OUT
IN
OUT
IN
OUT
LOOP SYNC
INTERNALLY
TERMINATED
BI-PHASE / TACH / GPI / PILOT
SERIAL NUMBER
964530300294856
Loop Sync
SYNC HD
96 I/O Interface
MTC OUT
HOST SERIAL
AC 100-240V, 50-60HZ, .5A 30W
VIDEO REF
9-PIN OUT 2
9-PIN OUT 1
WORD CLOCK (1x,256x)
VIDEO
L
T
C
I
N
A
E
S
I
N
A
E
S
O
U
T
L
T
C
O
U
T
IN
OUT
IN
OUT
IN
OUT
LOOP SYNC
INTERNALLY
TERMINATED
BI-PHASE / TACH / GPI / PILOT
SERIAL NUMBER
964530300294856
SYNC HD
HD Interfaces
Software Utility
(Windows Only)
Any system using the optional SYNC Setup software utility requires a serial connection from
the SYNC HD to a supported Windows computer. (For compatibility information, see “System Requirements” on page 3.)
The SYNC Setup software utility will
not control the SYNC HD through the
DigiSerial port.
To connect the SYNC HD to a Windows computer
for the SYNC Setup software utility:
1 Purchase or make the required 9-pin to 8-pin
cable. For wiring details, see “” on page 90.
2 Make sure power is off on all equipment.
3 Connect the SYNC HD Host Serial port to an
available serial or COM port on your computer.
4 Restore power to the SYNC HD, and restart
your computer.
To connect the SYNC HD to Pro Tools|HD
interfaces:
1 Using a BNC cable, connect the Loop Sync
Out of the SYNC HD to the Loop Sync In of your
primary Pro Tools|HD audio interface.
2 Using a second BNC cable, connect the
SYNC HD Loop Sync In to the Loop Sync Out of
your Pro Tools|HD interface.
Loop Sync connections between a SYNC HD and 96 I/O
When using more than one Pro Tools|HD audio
interface, make the SYNC HD the first and last
unit in the Loop Sync chain.
Clock for Pro Tools
Audio Interfaces
The SYNC HD must be connected to all
Pro Tools|HD interfaces in the Loop Sync chain.
Connecting Loop Sync for Pro Tools|HD
Systems
The SYNC HD supports Loop Sync, and can
serve as Loop Sync Master. Loop Sync is a dedicated clock loop for synchronizing multiple
Pro Tools|HD interfaces. Loop Sync should only
be used to connect multiple Pro Tools|HD interfaces.
SYNC HD Guide8
Loop Sync in an expanded Pro Tools|HD system
Using Legacy Audio Interfaces with
Computer 1
ANALOG OUTPUT ANALOG INPUT AES/EBU OUTPUT AES/EBU INPUT
Computer 2
8 CH Mode
2 x 4 CH Mode
S/PDIFINS/PDIF
OUT
SLAVE CLOCKINSLAVE CLOCK
OUT
78563412785634125/6
7/8
1/2
3/4
5/6
7/8
1/2
3/4
MTC OUT
HOST SERIAL
AC 100-240V, 50-60HZ, .5A 30W
VIDEO REF
9-PIN OUT 2
9-PIN OUT 1
WORD CLOCK (1x,256x)
VIDEO
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IN
OUT
IN
OUT
IN
OUT
LOOP SYNC
INTERNALLY
TERMINATED
BI-PHASE / TACH / GPI / PILOT
SERIAL NUMBER
964530300294856
Pro Tools|HD
MachineControl
If you are using a Pro Tools|HD system that includes a legacy audio interface (an 888|24,
882|20, 1622, or ADAT Bridge audio interface),
you will need to connect the Clock output of the
HD system to the Slave Clock Input of the legacy
interface.
To connect a legacy audio interface to an
HD-series system with the SYNC HD:
1 Connect the SYNC HD to the HD-series sys-
tem with Loop Sync as described in the previous
steps.
2 Using a BNC cable, connect the Ext Clock Out
of your primary HD-series interface to the Slave
Clock In of your first legacy interface.
Clock for SYNC I/O, a 96 I/O, and an 888|24 I/O
3 If you are connecting multiple legacy inter-
faces, daisy-chain their Slave Clock connections
by connecting the Slave Clock Out of the first
interface to the Slave Clock In of the next interface.
See the Getting Started with HD Guide for
external clock configuration instructions.
On MachineControl-enabled Pro Tools systems,
the SYNC HD supports limited Serial Deck Control only.
For more information on MachineControl
connections and operation, refer to the
MachineControl Guide.
Serial Deck Control Mode
(Non-Linear Decks Only)
Limited Serial Deck Control mode is available
through a connection to the 9-pin ports on the
SYNC HD. For full Serial Deck Control, a direct
serial connection to the host computer is required. See the MachineControl Guide for more
information.
To connect an external deck to SYNC HD:
Connect a standard 9-pin cable from one of
the 9-pin Out ports on the SYNC HD to the
9-pin connector of the external deck.
As many as two decks can be connected to the
two 9-pin Out ports on the SYNC HD. You can
control one deck at a time, and switch between
them from within Pro Tools. These ports on the
SYNC HD support all MachineControl modes
except 9-Pin Remote (Deck Emulation) mode.
Due to performance limitations, this
configuration should be used primarily
with non-linear decks.
Remote 9-Pin Deck Emulation
Mode
Remote 9-Pin Deck Emulation mode requires a
direct serial connection to the host computer.
See the MachineControl Guide for more information.
Chapter 2: Installation and Configuration 9
Synchronization and Time Code Connections to Machines, Decks, and Other Devices
The following sections describe connections required for different applications. For more information on time code applications, see
Appendix A, “Additional Synchronization Information.”
Connecting a Video Source
This section describes connections required
when using house video reference (SD or HD).
To have the SYNC HD resolve to house sync:
Connect the house video reference/black
burst/tri-level sync source to the Video Ref In
port on the SYNC HD.
Character Generator for Window Burn
The SYNC HD can generate a window burn on
SD signals coming in to the Video In port.
Even when you have an HD video reference signal connected to the Video Ref In
connector, you can still connect an SD
video signal to the Video In connector to
provide a window burn.
To use the SYNC HD Time Code Character
Generator to make a window burn (SD signal):
1 Connect an SD video signal to the SYNC HD
Video Ref In port.
2 Connect the SYNC HD Video Ref Out port to
the Video In port.
3 Connect the SYNC HD Video Out port to
other video devices, ensuring that the signal is
terminated by the last device in the chain.
The Video Ref ports are a non-terminated
loop-through connection. If the Video Ref
Out port is not used, then you must
terminate it using the included 75-ohm
BNC terminator.
To have the SYNC HD resolve directly to an
incoming SD video signal:
Connect an SD video signal to the SYNC HD
Video In port.
SYNC HD Guide10
Connecting LTC
The SYNC HD provides LTC input and output
connectors.
To input LTC to the SYNC HD:
Connect the LTC signal from your machine,
synchronizer or other source to the SYNC HD
LTC In port.
To output LTC from the SYNC HD:
Connect the SYNC HD LTC Out port to your
external devices.
Connecting Word Clock Devices
MTC OUT
HOST SERIAL
AC 100-240V, 50-60HZ, .5A 30W
VIDEO REF
9-PIN OUT 2
9-PIN OUT 1
WORD CLOCK (1x,256x)
VIDEO
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IN
OUT
IN
OUT
IN
OUT
LOOP SYNC
INTERNALLY
TERMINATED
BI-PHASE / TACH / GPI / PILOT
SERIAL NUMBER
964530300294856
AES Clock
Connecting AES/EBU Devices
The SYNC HD has Word Clock input and output, both of which can be used simultaneously.
Use Word Clock when you want the SYNC HD
to lock to 1x clock from DAT machines, DA-88s,
and similar digital devices.
Pro Tools|HD audio interfaces each have their
own Word Clock inputs, which provide additional clock options and flexibility. Refer to
Pro Tools|HD documentation for details.
To inpu t Word Clock to the SYNC HD:
Connect Word Clock from the master Word
clock signal or device to the SYNC HD Word
Clock In.
To supply Word Clock from the SYNC HD:
Connect the SYNC HD Word Clock Out to the
Word Clock input of a digital device.
Make sure the SYNC HD Word Clock Out port is
configured to 1x for Word Clock.
Word Clock contains no positional information. If you want devices to play or record in
sync, you’ll still need to provide them with a positional reference.
To input AES/EBU clock reference to the
SYNC HD:
Connect the device’s AES/EBU output to the
SYNC HD AES/EBU input.
Connecting the SYNC HD to an AES/EBU device
To supply AES/EBU clock reference from the
SYNC HD:
Connect the SYNC HD AES/EBU output to the
AES/EBU reference input on a DAT machine or
other digital device. (AES/EBU clock does not
support 176.4 kHz or 192 kHz sample rates.)
The SYNC HD can generate time code to
provide positional reference to other devices.
See “Generating & Regenerating Time
Code” on page 49.
Chapter 2: Installation and Configuration 11
Connecting MIDI
The SYNC HD MTC Out port supplies MIDI time
code, derived from conversion (from LTC, VITC
or Bi-Phase) or from MTC generation, to synchronize MTC-compatible consoles, sequencers,
lighting systems, and other devices.
Software Installation
The following sections provide instructions to
install software required to use the SYNC HD
with Pro Tools HD or with the stand alone
SYNC Setup software (Windows only).
MIDI time code from the MTC Out always
matches the time code address displayed on the
SYNC HD front panel. To supply MTC from the
SYNC HD to another MTC-compatible device,
connect the device as described below.
To connect an MTC-compatible device to receive
MTC from the SYNC HD:
Connect the SYNC HD MTC Out port to the
appropriate MIDI input on the device using a
standard MIDI cable.
Pro Tools and MTC
Pro Tools receives MTC from the SYNC HD
through its connection to the SYNC HD Host
Serial port. This signal does not include standard
MIDI time code, but is instead a high-quality,
proprietary time code signal designed for
Pro Tools. A MIDI Interface is not required for
Pro Tools to receive MTC.
MTC is output constantly whenever the
SYNC HD is generating time code. This output
can be muted when time code (LTC) is idle. See
“MTC Output and Idle Muting” on page 56 for
details.
Pro Tools HD
All software required to use SYNC HD options is
installed with Pro Tools HD software.
The availability of SYNC HD features depends
on the version of Pro Tools software you are
running. For details on features available with
your version of Pro Tools, visit the Digidesign
website.
Updating SYNC HD Firmware
You can update SYNC HD firmware from the
DigiTest application.
To update SYNC HD firmware:
1 Confirm that the SYNC HD is properly con-
nected to your computer in one of the following
ways:
• If it is connected to a Pro Tools system, it
sh o uld be c onnecte d to a Di giS erial P ort on
an HD Core card.
• (Windows Only) If it is connected to a computer without Pro Tools, it should be connected to the COM 1 port on the computer
with a standard serial cable.
2 Ensure that Pro Tools is not running.
3 Launch the DigiTest application.
SYNC HD Guide12
4 Click SYNC Firmware.
SYNC Setup Software Utility
(Windows Only)
When using the SYNC HD in Standalone mode,
the SYNC HD can be controlled remotely using
the SYNC Setup software utility. Updates to this
utility can be downloaded from the Digidesign
website (www.digidesign.com).
To install the SYNC Setup software utility on
Windows:
1 Make sure the SYNC HD is connected to a se-
rial or COM port on your computer. See “Serial
Connections for the SYNC Setup Software Utility” on page 8.
DigiTest SYNC Firmware window
5 If you are using a DigiSerial Port connection,
make sure you have selected the HD Core card
from the pop-up menu.
6 Select the type of port connection for the
SYNC peripheral (DigiSerial Port or COM Port).
7 Select SYNC HD for the Synchronizer Type.
8 Click Begin Update.
9 Follow the on-screen instructions to power cy-
cle the SYNC HD while holding the Set button.
10 Wait for the firmware update to complete.
Do not power off the SYNC HD while the update is in progress.
11 When the update is complete, click Quit.
2 Insert the installer disc containing the latest
SYNC Setup software, or navigate to its location
if you downloaded an update.
3 Launch the installer and follow the on-screen
instructions.
Configuring the Device ID
If you are using SYNC HD with Pro Tools HD
7.4 or higher, Pro Tools will automatically recognize the SYNC HD.
If you are using SYNC HD with Pro Tools HD
version 7.3 or lower, set SYNC HD to emulate a
SYNC I/O.
To set SYNC HD to emulate a SYNC I/O:
1 Press Set, and use the Up or Down switches to
display Device ID (dEuicE id).
2 Press Set. The LED Time Code Display shows
shows the current Device ID for the unit: SYNC
HD (SYnc HD) or SYNC I/O (SYnc IO).
3 Press Up and Down to toggle the Device ID to
read SYNC I/O (SYnc IO).
4 Press Set.
Chapter 2: Installation and Configuration 13
Configuring the SYNC HD from Pro Tools HD
Pro Tools HD software provides SYNC HD configuration controls that establish communication between Pro Tools and the SYNC HD.
Loop Sync
The SYNC HD supports Digidesign’s Loop Sync
feature for connecting Pro Tools|HD interfaces.
The SYNC HD can be configured as the Clock
Source (Loop Master) in order to provide Loop
Sync master clock to the rest of your
Pro Tools|HD interfaces.
For system requirements and Loop Sync
connection instructions, see Chapter 1,
“Introduction.”
To check SYNC HD and Pro Tools communication:
1 After installing Pro Tools and connecting the
SYNC HD as described, launch Pro Tools.
2 Choose Setup > Peripherals, and click the Syn-
chronization tab.
3 Under Digidesign Synchronization Device, se-
lect Enable SYNC Peripheral.
Auto ID of SYNC HD through Loop Sync
Pro Tools HD automatically recognizes if a
SYNC HD is connected to the DigiSerial port
when Pro Tools is launched. When Pro Tools
recognizes the SYNC HD, it automatically configures the Device and Port settings for the
SYNC HD in the Peripherals dialog
SYNC HD Guide14
SYNC HD settings in the Peripherals dialog
Pro Tools scans the DigiSerial port and checks
the SYNC HD firmware.
If you need to update your firmware, use the
DigiTest application included on the SYNC HD
Installer disc. See “Updating SYNC HD Firmware” on page 12.
Configuring the SYNC HD in the
Clock Source
Session
settings
SYNC
Setup
Time Code
Settings
Clock Source
Session Setup Window
When the SYNC HD is connected through Loop
Sync and enabled in the Peripherals dialog, its
settings become available in the SYNC Setup
and Time Code Settings sections of the Session
Setup window.
Session Setup window
See the Pro Tools Reference Guide for more
information on the Session Setup Window.
Clock Source can be any device in the Loop Sync
chain. This lets you use any digital input source
available on any Pro Tools|HD interface (including the SYNC HD) simply by selecting that device and source from the Clock Source menu.
Clock Reference
The selected Clock Source device determines
your choices for clock reference.
When Clock Source is the SYNC HD
When the SYNC HD is set to be the Clock
Source, it is the Loop Master. Clock, Positional
Reference, and Video Format selectors become
active in the SYNC Setup section of the Session
Setup window.
Clock Source
When connected and configured in the Loop
Sync chain, the SYNC HD appears (as SYNC)
along with any Pro Tools|HD interfaces in the
Clock Source pop-up menu, located in the Session Setup window.
SY NC HD s elected a s Clock So urce in the S ession Se tup
window
SYNC Setup controls in the Session Setup window
SYNC HD Clock Reference choices include:
• Internal/VSO
•Video In
•Video Reference (SD)
•Video Reference (HD)
•LTC
• Bi-Phase
• Pilot Tone
•AES/EBU
• Word Clock
• Loop Sync
Chapter 2: Installation and Configuration 15
When the SYNC HD is not the selected Clock
Source device, the Clock Reference menu in the
SYNC Setup section switches to Loop Sync.
For LTC clock reference, multiple choices
are available from the LTC sub-menu. See
“LTC and Clock Reference” on page 38.
To choose a SYNC HD Clock Reference:
Select a SYNC HD clock choice from the Clock
Reference pop-up menu in the Session Setup
window.
Choosing a SYNC HD Clock Reference
The Clock Source pop-up menu follows your selection of SYNC HD for Clock Reference by automatically switching to the SYNC setting. (You
can also choose SYNC HD as Clock Source first,
then select a Clock Reference.)
To choose a different Loop Sync device as the
Clock Source:
Select a different Loop Sync device and Clock
Source from the Clock Source pop-up menu in
the Session Setup window.
Choosing a Clock Source (96 I/O shown)
When Clock Source is an HD I/O
When a 192 I/O, 192 Digital I/O or 96 I/O is providing the Clock Source, it will be the Loop Master. Clock Source options are available directly
from the Clock Source menu, based on the configuration of that interface in the Hardware
Setup dialog. Choices can include AES, S/PDIF,
Optical, or Word Clock.
See the Getting Started with HD Guide
for more information on audio interface
configuration.
SYNC HD Guide16
Locked and Speed Cal Indicators
Positional Reference
The Locked and Speed Cal indicators in the
SYNC Setup and Timecode Offsets section of the
Session Setup window display synchronization
status of the SYNC HD. These indicators reflect
the state of the same LEDs on the front panel.
Locked and Speed Cal Indicators
Locked The Locked indicator stays lit when the
SYNC HD is locked to the selected clock reference. The Locked indicator flashes if the selected
clock reference source is missing or out of lockable frequency range.
Speed Cal The Speed Cal indicator lights to indicate the status of the clock reference:
• Yellow Solid: SYNC HD is locked and that
the clock reference is within 0.025% of the
expected rate
• Yellow Flashing Fast: SYNC HD is locked,
but the clock reference is between 0.025%
and 4% faster than the expected rate
• Yellow Flashing Slow: SYNC HD is locked,
but the clock reference is between 0.025%
and 4% slower than the expected rate
• Red Flashing Fast: SYNC HD is locked, but
the clock reference is more than 4% faster
than the expected rate
• Red Flashing Slow: SYNC HD is locked, but
the clock reference is more than 4% slower
than the expected rate
• Unlit: SYNC HD is not locked to the chosen
clock reference
To select a positional reference:
1 Select a positional reference from the Posi-
tional Reference pop-up menu, located in the
SYNC Setup controls.
When the Positional Reference choices include:
• Auto LTC/VITC
•LTC
•VITC
• Bi-Phase
Sample Rate
The SYNC HD sample rate is determined by the
current Pro Tools session sample rate. In Standalone mode, SYNC HD sample rate can be selected with the SYNC Setup software utility
(Windows only), or using the front panel
switches. Current sample rate is indicated by the
Sample Rate LEDs.
When used with Pro Tools HD, the SYNC HD
supports all available sample rates. Setting the
session rate in Playback Engine or Hardware
Setup dialogs also sets the SYNC HD to that sample rate.
Audio and Video Pull Up and Pull Down
Pro Tools provides up to 4.167% pull up, and
4.0% pull down choices. When working with a
Movie track containing video, a separate Video
Pull-Down menu becomes available in the Session Setup window, allowing you to apply standard or non-standard pull factors to audio and
video separately. This lets Pro Tools synchronize
to most supported SMPTE frame rates and formats.
With Pro Tools HD, 4.167% pull up and
4.0% pull down are not available in
176.4 kHz and 192 kHz sessions.
Chapter 2: Installation and Configuration 17
Time Code Rate
Video Ref Format
While using Pro Tools, the SYNC HD Time Code
Rate automatically follows the session Time
Code Rate setting. Session Time Code Rate is set
in the Session Setup window.
To set the session Time Code Rate:
Choose a rate from the Time Code Rate selec-
tor in the Session Setup window.
Choosing a session Time Code Rate
In Standalone mode, the SYNC HD Time Code
Rate can be set using the SYNC Setup software
utility (Windows only), or from the front panel.
SD Video Reference
Choose PAL or NTSC format for the session from
the Video Ref Format pop-up menu in the Session Setup window. If the session already has
video, the format will be set automatically.
Choosing an SD Video Format
SYNC HD Guide18
HD Video Reference
Choose the video reference rate for the session
from the Video Ref Format pop-up menu in the
Session Setup window. If the session already has
video, the format will be set automatically.
Choosing an HD Video Format
The following video reference rates are available
in the Video Ref Format pop-up menu:
• Slow PAL 23.976
• Slow PAL 24
• 720p - 23.976
• 720p - 24
• 720p - 25
• 720p - 29.97
• 720p - 30
• 720p - 50
• 720p - 59.94
• 720p - 60
• 1080i - 47.95
• 1080i - 48
• 1080i - 50
• 1080i - 59.94
• 1080i - 60
• 1080p - 23.976
• 1080p - 24
• 1080p - 25
• 1080p - 29.97
• 1080p - 30
• 1080p - 50
• 1080p - 59.94
• 1080p - 60
Chapter 2: Installation and Configuration 19
Video In Format Settings at
HD Video Reference Rates
With 24-frame and 48-frame rates only, a popup menu lets you set the Video In Format.
When the Clock Reference is set to Video Reference (HD), SYNC HD automatically sets the
Video In format (NTSC or PAL) appropriate for
the selected Video Reference rate, as shown in
the following table.
Video Reference (HD) Rate Video In Format
Slow PAL 23.976 NTSC
Slow PAL 24 PAL
720p - 23.976 NTSC
720p - 24 PAL (NTSC available)
720p - 25 PAL
720p - 29.97 NTSC
720p - 30 NTSC
720p - 50 PAL
720p - 59.94 NTSC
720p - 60 NTSC
1080i - 47.95 NTSC
1080i - 48 PAL (NTSC available)
Clock Reference, Video Ref In,
and Video In Settings when
Importing Avid Video
When you import Avid video media into a session, Pro Tools automatically sets the Clock Reference (HD or SD), Video Reference rate, and
Video In format appropriate for the imported
media.
1080i - 50 PAL
1080i - 59.94 NTSC
1080i - 60 NTSC
1080p - 24 PAL (NTSC available)
1080p - 25 PAL
1080p - 29.97 NTSC
1080p - 30 NTSC
1080p - 50 PAL
1080p - 59.94 NTSC
1080p - 60 NTSC
SYNC HD Guide20
MachineControl Configuration
If you are using Digidesign MachineControl, do
the following to establish basic communication.
To configure MachineControl:
1 Choose Setup > Peripherals, and click the Syn-
chronization tab.
2 In the Synchronization page, ensure the
SYNC HD is the current Synchronization device,
and DigiSerial is the selected port.
3 Click the MachineControl tab to open the Ma-
chineControl page.
4 Enable and configure options for 9-pin Serial
or 9-pin Remote.
Selecting Transport Master
The Pro Tools Transport window provides the
Transport Master selector. This pop-up lets you
select the device that will be controlled by the
Pro Tools transport. Choices include Pro Tools
and any other devices or modes you have enabled in the Synchronization or Machine Control tabs of the Peripherals dialog.
Software Configuration for the SYNC Setup Software Utility
(Windows Only)
To configure the SYNC Setup software on
Windows:
1 Make sure the SYNC HD is connected to your
computer according to the instructions in “Serial Connections” on page 7.
2 Launch the SYNC Setup software utility.
3 Choose Preferences > SYNC Set menu in the
upper left corner of the SYNC Setup application.
4 If not already selected, choose the appropriate
serial port for the SYNC HD-to-computer connection.
5 Close the Preferences window. The SYNC
Setup software utility should now show that it
recognizes the SYNC HD in the information display section. If it does not, check your connections and port selection, and try again.
Transport master
Chapter 2: Installation and Configuration 21
Troubleshooting
Incoming Time Code
Status LEDs
The status LEDs (LOCKED and SPEED CAL) on
the SYNC HD front panel and in the Session
Setup window may help you isolate potential
problems.
Use the Incoming Time field in Pro Tools
Session Setup Window as a Reference
Use MTC Click this button if the SYNC HD is
unavailable, to switch to any currently connected MIDI interface for MTC synchronization.
This option requires a compatible device that
supports MTC conversion, and that is already
connected to your CPU and enabled.
Keep SYNC Click this to leave the session configured for the SYNC HD, or to continue searching
for the SYNC HD to re-establish lost communication.
The Incoming Time field in the Session Setup
Window indicates whether or not the SYNC HD
is receiving positional reference. If this field appears to be inactive when inputting time code to
the SYNC HD, check your hardware device settings, serial connection to your computer, and
your software settings.
Incoming Time Code display (Session Setup window)
Lost Communication
If Pro Tools loses communication with the
SYNC HD, a dialog will appear asking you
whether you want to switch to MTC (if available) or continue trying to locate the SYNC HD.
If you see a “lost communication” dialog, first
check power, DigiSerial, and other connections.
Lost Communication Dialog
Synchronization Accuracy
If you are noticing drift or lack of accurate synchronization between your devices, check the
following:
If your system locks up in the wrong place,
make sure you have set the correct frame rate
and format (NTSC or PAL) on all your devices.
If your system locks up in the correct location,
but drifts, check your clock signals and settings.
The Lost Communication dialog provides the
following options for re-establishing synchronization when communication with the
SYNC HD stops:
SYNC HD Guide22
chapter 3
Power
Sample Rate
Clock Reference
Switch
Clock Reference
Loop
LEDs
Master
LEDs
Generator/Parameter
Controls
Time Code
Display
Switch
Positional Reference
LEDs
Positional
Drop Frame
Frame Rate
Switch
Reference
LED
LEDs
Frame
Rate
Status LEDs
SYNC HD Hardware and Software
SYNC HD Front Panel
Figure 1. SYNC HD front panel
Controls and Displays
All SYNC HD local controls are on its front
panel. For information on back panel connectors and setup, see Chapter 2, “Installation and
Configuration.”
AC Mains Power Switch
When the SYNC HD power switch is pressed in,
power is on; when the switch is out, power is off.
The LED ring around the power switch is orange
while the SYNC HD is powering up, or while
firmware is being updated. The LED ring is green
when the SYNC HD is ready for use.
Clock Reference Switch and LEDs
This switch selects the SYNC HD clock reference, as indicated by the Clock Reference LEDs.
Available clock reference inputs include:
• Video Ref SD/HD (Green = SD, Yellow = HD)
•VideoIn
•LTC
• Word/AES (Green = Word, Yellow = AES)
• Pilot
•Bi-phase/Tach
• Internal/VSO
• Loop Sync
Loop Master Indicator
When lit, this LED indicates that the SYNC HD
is the current Pro Tools Loop Master device.
Chapter 3: SYNC HD Hardware and Software 23
Table 4. Sample Rates at Pull Up and Pull Down Settings
Pull Up/Down
+4.1667%
and +0.1%
+4.1667% 45938 50000 91875 100000 n/a n/a
+4.1667%
and –0.1%
+0.1% 44144 48048 88288 96096 176576 192192
–0.1% 44056 47952 88112 95904 176224 191808
–4.0% and
+0.1%
–4.0% 42336 46080 84672 92160 n/a n/a
–4.0% and
–0.1%
44100 48000 88200 96000 176400 192000
45983 50050 91967 100100 n/a n/a
45892 49950 91783 99900 n/a n/a
42378 46126 84757 92252 n/a n/a
42294 46034 84587 92068 n/a n/a
Sample Rate LEDs
These green or yellow LEDs show the current
SYNC HD sample rate. Pull Up and Pull Down
Sample Rate
Time Code Display
This 7-segment, multifunction LED is the
SYNC HD time code and parameter display.
are available for all sample rate settings, indicated by the corresponding LED. Table 4 (above)
shows the actual sample rates when pulled up or
down.
Time Code The current positional reference (in-
ternal or external), is displayed in hours:min-
utes:seconds:frames. Odd/even field distinction
is indicated using a decimal point to the right of
Generator/Parameter Controls
These four switches provide direct access to
many SYNC HD functions, including time code
generator settings, PAL/NTSC selection, sample
rate and more. The Time Code LED display
shows the current mode, selected parameter, or
setting.
the frames display. A lit decimal point to the
right of frames indicates an even-numbered
field; no decimal point indicates an odd-num-
bered field. When the SYNC HD is in Auto
Switch LTC/VITC mode, the decimal point to
the right of “minutes” illuminates.
The SYNC HD Time Code Display always dis-
plays actual incoming time code, regardless of
any External Time Code Offsets settings that are
applied in Pro Tools.
SYNC HD Guide24
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