Leitch DPS-575 User manual

DPS-475/575
Multi-Function Analog/
Digital A/V Synchronizer
Service Manual

Part #708-575

COPYRIGHT AND TRADEMARK
INFORMATION
Copyright
This document, the DPS-475, DPS-475AV, DPS-575, DPS-575AV, RC-4000, RC-
475, and DigiDuplex and all related materials are © Copyright 2000, Digital
Processing Systems Inc. All rights reserved.
The printed version of this document is DPS Part Number 708-575 and the version
number is 1.00.
Trademarks
DPS, the DPS logo, DPS-475, DPS-475AV, DPS-575, DPS-575AV, RC-4000, RC-
475, DPS-470 and DigiDuplex are trademarks or registered trademarks of Digital
Processing Systems Inc.
Microsoft Windows, Windows 95, Windows 98, Windows NT and Internet Explorer
are registered trademarks of Microsoft Corporation. Netscape Navigator is a
registered trademark of Netscape Communications Corporation. All other trademarks
are property of their respective holders.
Caveats
Information in this document is subject to change without notice and does not
represent a commitment on the part of Digital Processing Systems Inc.
This product requires technical and mechanical ability and requires precautions
against electrostatic discharge. The user assumes all risks when this product is
installed by anyone other than an authorized Digital Processing Systems dealer.
i


iii
TABLE OF CONTENTS
Copyright and Trademark Information ......................................................i
Copyright ......................................................................................................................i
Trademarks ...................................................................................................................i
Caveats .........................................................................................................................i
Table of Contents .............................................................................................iii
Introduction .....................................................................................................1
Chapter 1: Installation and Configuration ..................................................3
Installation ....................................................................................................................3
Unpacking and Inspection ......................................................................................3
Mounting ................................................................................................................3
Hardware Options ..................................................................................................3
Chapter 2: Connections ..................................................................................5
Breakout Cables ...........................................................................................................5
Multi-I/O Breakout Cable ......................................................................................5
AES/EBU Audio Breakout Cable [on audio-equipped units only] ........................5
Video Connections .......................................................................................................5
DV Input/Output .....................................................................................................5
S-Video Input ..........................................................................................................6
Component Analog Video Input .............................................................................6
Composite Video Input ...........................................................................................6
Serial Digital Input ................................................................................................6
Serial Digital Reclocked Output ............................................................................6
Serial Digital Outputs ............................................................................................6
Composite Video Output .........................................................................................6
Component Analog Video Output ...........................................................................6
Genlock Reference ..................................................................................................7
S-Video Output (on breakout cable) .......................................................................7
RGB(S) Video Output (on breakout cable) .............................................................7
Auxiliary Composite Output (on breakout cable) ..................................................7
Key Output (on breakout cable) .............................................................................7
Audio Connections .......................................................................................................7
Analog Audio Inputs and Outputs (Terminal Strips) ..............................................7
AES/EBU Inputs (on Audio breakout cable) ..........................................................8
AES/EBU Outputs (on Audio breakout cable) .......................................................8
Audio Delay Pulse/GPI Output (on Multi-I/O breakout cable) .............................8

Serial Digital Embedded Audio Input (SDI) ..........................................................8
Serial Digital Embedded Audio Output (SDI) .......................................................8
Remote Control Ports ...................................................................................................8
RS-232 and RS-422 ................................................................................................9
Ethernet Port ..........................................................................................................9
DCN Port ................................................................................................................9
Use with RC-4000 and RC-475 ..............................................................................9
GPI Inputs (on Multi-I/O breakout cable) .............................................................10
GPI Output (on Multi-I/O breakout cable) ............................................................10
Chapter 3: Operation - Front Panel Controls .............................................11
Resetting the Unit ...................................................................................................12
Menu Controls ..............................................................................................................12
Moving Through the Menus ...................................................................................12
Changing Parameters ............................................................................................13
Remote Control .......................................................................................................13
Status Indicators ...........................................................................................................14
Genlock ...................................................................................................................14
EDH ........................................................................................................................14
TBC .........................................................................................................................14
Autotrack ................................................................................................................14
DigiDuplex .............................................................................................................14
Option .....................................................................................................................14
Video Input Selection ...................................................................................................15
Audio Input Selection ..................................................................................................15
Freeze Controls ............................................................................................................16
Mode Selection ............................................................................................................17
Bypass .....................................................................................................................17
TSG .........................................................................................................................17
Keyer ......................................................................................................................17
N/R ..........................................................................................................................18
Proc Amp Controls and User Keys ..............................................................................18
Automatic Proc Amp Setup (“Gimme Bars”) ........................................................18
Luma ......................................................................................................................18
Black ......................................................................................................................19
Chroma ...................................................................................................................19
Hue .........................................................................................................................19
Memory ...................................................................................................................19
User 1 and User 2 ..................................................................................................20
Option .....................................................................................................................20
DV Control Mode ........................................................................................................20
User-Programmable Keys ............................................................................................21
Power-Up Keys ............................................................................................................21
Force Firmware Download ....................................................................................21
Self-Test Mode ........................................................................................................22
Erase Firmware ......................................................................................................22
Factory Reset ........................................................................................................22
iv
DPS-475/575 Service Manual

Chapter 4: Menu Overview and Feature Cross-Reference .......................23
Menu Controls ..............................................................................................................23
Moving Through the Menus ...................................................................................23
Changing Parameters ............................................................................................23
Menu Tree ....................................................................................................................24
Feature Cross-Reference ..............................................................................................29
Chapter 5: Menus: Video Setup ....................................................................33
Luma Gain ..............................................................................................................33
Black Level .............................................................................................................33
Chroma Gain ..........................................................................................................33
Hue Phase ..............................................................................................................33
Color Balance - Cb ................................................................................................33
Color Balance - Cr .................................................................................................34
Video AGC ..............................................................................................................34
AGC Bias ................................................................................................................34
Input H-Position .....................................................................................................34
Input Y/C Delay ......................................................................................................34
Sync Mode ..............................................................................................................34
3D Comb Decoder ..................................................................................................35
3D Chroma Motion Bias ........................................................................................35
Comb Decoder ........................................................................................................36
DigiDuplex Mode ...................................................................................................36
Self Setup to Bars ...................................................................................................37
More Video Settings .....................................................................................................37
Hot Switch ..............................................................................................................37
Hot Switch Delay ....................................................................................................37
Trouble Slide ...........................................................................................................38
Trouble File ............................................................................................................38
Freeze Mode ...........................................................................................................38
Field Select .............................................................................................................39
Strobe Rate .............................................................................................................39
Input Source ...........................................................................................................39
Test Signal Out .......................................................................................................39
TSG .........................................................................................................................40
Output Burst ...........................................................................................................40
SDI Clip ..................................................................................................................40
EDH Detection .......................................................................................................41
EDH Error Count ...................................................................................................41
Clamp Speed ...........................................................................................................41
Aux Output ..............................................................................................................41
Aux Sync/Comp ......................................................................................................42
Aux Sync Level .......................................................................................................42
CAV-Y Composite ...................................................................................................42
Analog Width ..........................................................................................................42
Chroma Pairing Filter [DPS-575 Only] ................................................................43
v
Table of Contents

Chapter 6: Menus: Audio Setup ..................................................................45
Channel 1 Only, Channel 2 Only, Both Channels .......................................................45
Input ........................................................................................................................45
Analog Bypass ........................................................................................................45
AES/EBU ...............................................................................................................46
Gain-R ....................................................................................................................46
Gain-L .....................................................................................................................46
DDPlex Gain-R ......................................................................................................46
DDPlex Gain-L .......................................................................................................47
Fixed Delay ............................................................................................................47
In Op. Level-R ........................................................................................................47
In Op. Level-L ........................................................................................................47
Headroom-R ...........................................................................................................48
Headroom-L ............................................................................................................48
Out Op. Level-R .....................................................................................................48
Out Op. Level-L ......................................................................................................48
Tone Level ...............................................................................................................48
Test Freq-L .............................................................................................................49
Test Freq-R .............................................................................................................49
Balanced .................................................................................................................49
Termination .............................................................................................................49
Stereo Mode ............................................................................................................49
Phase Invert L ........................................................................................................50
SDI In .....................................................................................................................50
Aud Follows Vid .....................................................................................................50
AFV-Composite, AFV-SVideo, AFV-CAV,
AFV-SDI, AFV-DV, AFV-Option ............................................................................51
Global Audio Config ....................................................................................................51
Auto Track ..............................................................................................................51
Master Mute ...........................................................................................................52
Audio Bypass ..........................................................................................................52
AES Data Grade .....................................................................................................52
AES Elec. Levels .....................................................................................................52
AES Source .............................................................................................................52
96kHz AES Output ..................................................................................................53
Digiduplex Input .....................................................................................................53
DDPlex AES/EBU Out ...........................................................................................53
SDI Out ...................................................................................................................54
Channel In->Out ....................................................................................................54
Sample Rate ............................................................................................................54
SDI Embedding ......................................................................................................55
SDI L/R De-Embed .................................................................................................55
Pitch Change ..........................................................................................................55
Mute In Freeze ........................................................................................................55
Dolby-E (Data) Mode ............................................................................................56
Voice-Over Pgm. Level ...........................................................................................56
vi
DPS-475/575 Service Manual

Voice-Over Fade .....................................................................................................56
Voice-Over ..............................................................................................................57
Chapter 7: Menus: Keyer Setup ..................................................................59
Fade Out .................................................................................................................59
Cut Out ...................................................................................................................59
Fade In ...................................................................................................................59
File ..........................................................................................................................59
Settings ...................................................................................................................60
Change Settings ..........................................................................................................60
Shift X .....................................................................................................................60
Shift Y .....................................................................................................................60
Fade In Time ..........................................................................................................60
Max Opacity ...........................................................................................................61
Fade Out Time ........................................................................................................61
Repeat Count ..........................................................................................................61
Frame Rate .............................................................................................................61
Loop Mode ..............................................................................................................61
Bumper Style ...........................................................................................................62
Save These Settings ................................................................................................62
Chapter 8: Menus: Noise Reduction .............................................................63
Noise Reduction ......................................................................................................63
Split Screen .............................................................................................................63
Spatial Filter ..........................................................................................................63
Spatial Filter Mix ...................................................................................................64
Horizontal Bandwidth ............................................................................................64
Vertical Bandwidth-Y ..............................................................................................64
Vertical Bandwidth-C .............................................................................................65
Temporal NR-Luma ................................................................................................65
Temporal NR-Chroma ............................................................................................65
Chapter 9: Menus: DV Control .....................................................................67
Chapter 10: Menus: Timing Setup ...............................................................69
Genlock ...................................................................................................................69
Subcarrier Phase ....................................................................................................69
Horizontal ...............................................................................................................69
Chapter 11: Menus: TSG/Image Grabbing ................................................71
Grab 10-bit Video ...................................................................................................71
Grab 8-bit Video .....................................................................................................71
Grab Linear Key ....................................................................................................71
Grab & Apply Luma Key .......................................................................................72
Luma Key Gain ......................................................................................................72
Threshold ................................................................................................................72
vii
Table of Contents

Chapter 12: Menus: System Config .............................................................73
Line Standard (525/625) [DPS-575 Only] ...................................................................73
Current ...................................................................................................................73
Switch to 525 ..........................................................................................................73
Switch to 625 ..........................................................................................................73
Disable Autoswitch / Switch to Auto ......................................................................73
Misc. Setup ...................................................................................................................73
Internal Temp .........................................................................................................73
Video Delay ............................................................................................................74
Keylock ...................................................................................................................74
Function Bypass .....................................................................................................74
GPI-1 Function ......................................................................................................74
GPI-2 Function ......................................................................................................75
GPO Function ........................................................................................................76
Genlock Changes ....................................................................................................76
VFD Brightness ......................................................................................................76
LED Brightness ......................................................................................................77
Idle Timeout ............................................................................................................77
Idle Cycle Time .......................................................................................................77
One-Time Video Setup .................................................................................................77
Source ID ................................................................................................................77
Setup level (in) ........................................................................................................77
Setup level (out) ......................................................................................................77
Chroma Coring .......................................................................................................78
VITS/Blanking Fld1 ................................................................................................78
VITS/Blanking Fld2 ................................................................................................78
Remote Control Setup ..................................................................................................79
Baud Rate ...............................................................................................................79
Remote Control .......................................................................................................79
RS-422 Termination ................................................................................................79
Unit Address (serial) ..............................................................................................80
IP Address ...............................................................................................................80
Netmask ..................................................................................................................80
Gateway ..................................................................................................................80
Machine Name ........................................................................................................81
DCN Address ..........................................................................................................81
Remote Watch .........................................................................................................81
Ethernet Address ....................................................................................................81
Flash Memory Mgmt ...................................................................................................82
List Files .................................................................................................................82
Memory Usage .......................................................................................................82
Backup All Settings .................................................................................................82
Restore All Settings ................................................................................................82
Version Information ................................................................................................83
Warm Reset .............................................................................................................83
Reset to Factory Defaults .......................................................................................83
viii
DPS-475/575 Service Manual

Enable Extra Options .............................................................................................83
Factory Calibration ................................................................................................83
Chapter 13: Theory of Operations ................................................................85
Audio Synchronizer Module ........................................................................................88
Block Diagram .......................................................................................................88
Connectors and Signals ..........................................................................................91
Implementation .......................................................................................................95
Calibration .............................................................................................................99
Chapter 14: Test/Alignment Procedures - Video ........................................101
Test Equipment Required .............................................................................................101
General Procedures ......................................................................................................102
Check Supply Voltages ...........................................................................................102
Firmware Upload ...................................................................................................102
DCN Port Check ....................................................................................................102
Ethernet Port Check ...............................................................................................103
GPI Check ............................................................................................................... 103
RS-422 Port Check .................................................................................................103
Adjustment Potentiometer Locations .....................................................................103
Calibration: NTSC .......................................................................................................105
Component Output Level ........................................................................................105
Composite Output Level .........................................................................................105
RGB Output Level ..................................................................................................105
SDI Output Check ..................................................................................................105
DigiDuplex .............................................................................................................106
Composite Input Level ............................................................................................106
Component Input Level ..........................................................................................106
S-Video Input Level ...............................................................................................106
SDI Input Check .....................................................................................................107
Timing and General ................................................................................................107
DV Module Check ..................................................................................................107
Calibration: PAL ...........................................................................................................107
Component Output Level ........................................................................................107
Composite Output Level .........................................................................................108
RGB Output Level ..................................................................................................108
SDI Output Check ..................................................................................................108
DigiDuplex .............................................................................................................108
Composite Input Level ............................................................................................109
Component Input Level ..........................................................................................109
S-Video Input Level ...............................................................................................109
SDI Input Check .....................................................................................................109
Timing and General ................................................................................................110
DV Module Check ..................................................................................................110
Chapter 15: Test/Alignment Procedures - Audio ........................................111
Test Equipment Required .............................................................................................111
ix
Table of Contents

Basic Parameters ..........................................................................................................112
DPS-475 Test Bench Unit .......................................................................................112
DPS-470 De-Tuned Reference ................................................................................113
Audio Precision ......................................................................................................113
Visual Inspection and Power-Up Test ..........................................................................113
Visual Inspection ....................................................................................................113
Installation of the card ...........................................................................................113
Apply Initial Power ................................................................................................113
Initialising the Audio Sub-system ................................................................................114
Programming the CPLD ........................................................................................114
Verifying the FPGA ................................................................................................114
The Analogue Audio Interface .....................................................................................114
Bypass Relays .........................................................................................................114
Input Termination Relays .......................................................................................115
Output Driver Calibration .....................................................................................115
Input Receiver Calibration .....................................................................................115
Specifications ..........................................................................................................115
Remaining Audio Channels ....................................................................................116
The Digital Audio Interfaces ........................................................................................116
Bypass Relays .........................................................................................................117
AES/EBU output modes ..........................................................................................117
SDI Embedding and DigiDuplex ............................................................................117
Auto-Track ..............................................................................................................117
Chapter 16: Schematics ...................................................................................119
DPS-475/575 Main Board.............................................................................................119
DPS-475/575 Front Panel .............................................................................................140
DPS-475/575 Rear Connector.......................................................................................141
DPS-475/575 Audio Synchronizer Module ..................................................................142
DPS-475/575 Animated Logo Option...........................................................................145
Chapter 17: Bill of Materials .........................................................................147
804-575: DPS-475/575 Unit Overview .......................................................................147
804-575AV: DPS-475/575AV Unit Overview .............................................................149
843-570: Main Board Assembly .................................................................................151
843-571: Front Panel Assembly ..................................................................................175
843-572: Rear Panel Assembly ...................................................................................177
843-573: Audio Synchronizer Module ........................................................................178
843-574: Animated Logo Option Assembly ...............................................................188
843-575: Shaft Encoder Assembly .............................................................................188
Appendix A: Specifications ............................................................................189
Video Specifications ....................................................................................................189
Audio Specifications ....................................................................................................190
General Specifications .................................................................................................191
Appendix B: Test Signals ................................................................................193
x
DPS-475/575 Service Manual

Appendix C: Installation of Hardware Options ..........................................195
Precautions ...................................................................................................................195
Starting the Installation ................................................................................................196
Installation of DV I/O Option Board ...........................................................................196
Installation of Audio Synchronizer Module ................................................................197
Removal of Audio Synchronizer Module ....................................................................199
Installation of Animated Logo Option Board ..............................................................199
Completing the Installation ..........................................................................................200
Appendix D: The Uploader Software ...........................................................201
Software Installation ....................................................................................................201
Starting the Software ....................................................................................................201
Using the Software .......................................................................................................201
Uploading Files ......................................................................................................203
Converting Files .....................................................................................................203
Field Ordering in Stills and Animations ......................................................................206
Maximum Animation Sequence Length and Frame Size ............................................207
Appendix E: DigiDuplex Mode .....................................................................209
What Is DigiDuplex? ...................................................................................................209
Controlling the DigiDuplex Signal Path ......................................................................209
Video .......................................................................................................................210
Audio ......................................................................................................................211
Configuration Example ................................................................................................212
Appendix F: Ethernet Control ......................................................................215
Configuring Ethernet Control ......................................................................................215
Web Browser Control ...................................................................................................215
Device Control .......................................................................................................216
Confidence Monitoring ..........................................................................................217
Flash File System ...................................................................................................217
Upload File to Unit ................................................................................................217
Other Machines on this Network ...........................................................................218
Appendix G: Remote Control Protocol ........................................................219
Appendix H: Cable Pinouts ...........................................................................221
Video Cable ............................................................................................................221
Audio Cable (Standard) ..........................................................................................222
Audio Cable (Optional) ..........................................................................................223
Appendix I: Important Addresses and Phone Numbers ............................225
Internet .........................................................................................................................225
Canada .........................................................................................................................225
USA & Latin America ..................................................................................................225
Europe ..........................................................................................................................225
Asia and the Pacific Rim ............................................................................................226
xi
Table of Contents

Appendix J: A Brief History of DPS .............................................................227
Appendix K: Warranty .................................................................................231
Warranty Statement ......................................................................................................231
Warranty Limitations ...................................................................................................231
Warranty Service ..........................................................................................................231
Appendix L: Compliance ..............................................................................233
FCC Compliance Statement .........................................................................................233
Canadian Compliance Statement .................................................................................233
EEC Declaration of Conformity ..................................................................................233
xii
DPS-475/575 Service Manual

1
Introduction
INTRODUCTION
The Digital Processing Systems DPS-475™ and DPS-575™Multi-Function
Analog/Digital AV Synchronizers are equally suited for analog, digital or hybrid
facilities, and represent the ideal choice for broadcasters making the transition to
digital television (DTV). Available in video-only and audio/video configurations,
these synchronizers provide an ideal bridge from analog video signals, such as
satellite and microwave feeds, to digital production facilities. The DPS-475 is an
NTSC-only model while the DPS-575 is an auto-sensing dual-standard (PAL/NTSC)
device.
The DPS-475 and DPS-575 offer unparalleled I/O flexibility. Four input and five
output formats are provided standard:
Serial Component Digital Video (SDI) input and output
Component Analog Video (Betacam) input and output
S-Video (S-VHS / Hi8) input and output
Composite Video input and output
RGB-S output
DV (IEEE-1394) I/O with transport control is available as an option. A built-in auto-
sense TBC circuit provides seamless mode switching between direct color and
heterodyne sources such as camcorders and VTRs.
The versatile DPS 12-bit comb filter offers three processing modes: Simple,
Adaptive-2D and Adaptive-3D. 3D combing utilizes a proprietary DPS algorithm to
combine information from previous frames to eliminate residual subcarrier artifacts,
such as cross luminance and cross chrominance. 3D combing can also be applied to
non-composite sources, to clean up component video that was previously decoded
from a composite source using lower-quality combing in other equipment. Combining
the high-quality comb filter with DPS’ proprietary advanced 12-bit analog encoding
provides maximum signal transparency and optimum transcoding.
The DPS-475 and DPS-575 also feature adjustable temporal and spatial digital noise
reduction, as well as variable 2D filtering with separate horizontal and vertical
bandwidth controls. Applying digital bandwidth filtering and noise reduction prior to
MPEG encoding can improve overall MPEG performance through entropy reduction.
DPS' exclusive DigiDuplex mode provides bi-directional connectivity between analog
tape machines and digital audio/video routing systems. DigiDuplex saves space and
money by enabling digital to analog transcoding with simultaneous analog to digital
frame synchronization - all in one compact box. In DigiDuplex mode, the unit's SDI
video input is routed directly to the analog video outputs, which feed the inputs of an
analog device. The analog output of the device can be simultaneously connected to
the synchronizer's analog inputs, where it is processed and sent to the SDI video
outputs. Conversion between digital and analog audio is handled in a similar fashion.
With the addition of the four-channel audio synchronizer module, the DPS-475 and
DPS-575 can provide dual stereo audio and video synchronization in a single rack-
unit-high package. The internal audio synchronizer option supports analog, AES/EBU

digital, and embedded SDI and DV audio I/O (with the DV I/O Module installed). All
audio outputs are simultaneously active, which enables both analog and digital audio
devices to be connected at the same time. All four audio channels can dynamically
track the internal delay of the video synchronizer, and a fixed delay can also be
specified, ensuring proper lip sync regardless of the program source. Audio test tones
can be generated at operator-specified frequencies.
The DPS-475 and DPS-575 are more than just synchronizers. In addition to the
features listed above, other functions include: Time Base Corrector, Audio
Synchronizer, Digital Framestore with Linear Keyer, Digital Noise Reduction, DV
Transcoder (optional), Video AGC, 10-bit Video Test Signal Generator with Zone
Plate, Audio Test Signal Generator, VITS Inserter, Video Bandwidth Processor, Serial
Digital Audio Embedder/De-Embedder and Animated Logo Inserter (optional). These
functions can be accessed from the front panel, or from an optional DPS RC-475™ or
RC-4000™ remote control.
The DPS-475 and DPS-575 represent ideal choices for broadcasters transitioning to
DTV. When interfacing analog audio and video sources to serial digital equipment,
nothing offers their flexibility, performance, reliability or economy.
This manual provides operating instructions for both the DPS-475 (NTSC) and DPS-
575 (auto-switching NTSC/PAL). Differences between these two units are noted
where applicable.
DPS-475/575 Service Manual
2

CHAPTER 1: INSTALLATION AND
CONFIGURATION
Installation
Unpacking and Inspection
This unit has been thoroughly calibrated and inspected, both electronically and
mechanically, to ensure that it meets the published specifications. The following items
are included with each unit:
Description Quantity
DPS-475 or DPS-575 Multi-Function AV Synchronizer 1
Operations Manual 1
AC Power Cord (Part # 773-254 or 773-505) 1
Rear Support Bracket (Part # 741-983) 1
Video Breakout Cable (Part # 774-753) 1
Audio Breakout Cable (Part # 774-755) 1
(included only with the DPS-475AV and DPS-575AV)
2 x Analog Audio Terminal Blocks (Part # 722-184) 1
(included only with the DPS-475AV and DPS-575AV)
(these may be pre-installed on your unit)
Mounting
The size of the DPS-475 and DPS-575 allows them to fit into most standard consoles
or 19-inch racks. If the unit is to be mounted in a rack, then the included rear support
bracket must be used. Care must be taken to select a dry, well-ventilated location with
a minimum of dust and vibration. Also, leave sufficient clearance from the unit’s sides
to allow for proper air circulation.
After unpacking the unit and before installing it in a console or rack, allow at least 30
minutes for temperatures to equalize and to eliminate any condensation that may have
developed.
Hardware Options
If you purchased hardware options such as the Audio Synchronizer Module, the
Animated Logo Option, or the DV I/O module separately from the main unit, you
will need to install them. Please see Appendix C for detailed instructions for installing
your options safely and correctly.
3
Chapter 1:
Installation and Configuration

DPS-475/575 Service Manual
4

Chapter 2:
Connections
CHAPTER 2: CONNECTIONS
This chapter describes the connections on the DPS-475 and DPS-575 used to
interface the unit with other video and audio equipment in your system.
DPS-475AV/575AV: Back Panel
Breakout Cables
Some connections to the DPS-475/575 are provided on the supplied breakout cables.
These breakout cables must be connected to the following ports on the back of the
unit.
Multi-I/O Breakout Cable
This breakout cable, part number 774-753, connects to the DB-15F high-density
connector labeled Multi I/O on the right side of the rear of the unit. This cable
provides connections for RGB output, sync/key/auxiliary-composite output, S-Video
output, and GPI.
AES/EBU Audio Breakout Cable [on audio-equipped units only]
This breakout cable connects to the DB-25F connector labeled AES/EBU on the rear
of the unit. This cable provides connections for AES/EBU audio input and output.
The standard AES/EBU Audio Breakout cable (part number 774-755) provides BNC
connections; an optional Audio Breakout cable, part number 774-470, provides BNC
and XLR connections.
Video Connections
The following are the video connections on the rear of the DPS-475/575, in left-to-
right order, followed by those on the supplied breakout cable.
DV Input/Output
This 6-pin IEEE-1394 connector, labeled DV I/O, is used to connect DV (often
referred to as “Firewire”) devices. In addition to carrying DV video and audio input
and output, this port also provides DV device control, allowing control of the DV
device directly from the DPS-475/575. This connection is active only if the optional
DV I/O Module is installed.
5
L L L R R R L L L R R R
+ - G + - G + - G + - G
In Out In Out
L L L R R R L L L R R R
+ - G + - G + - G + - G
Genlock
Loop

S-Video Input
The 4-pin connector on the rear of the unit, labeled S-Video, is used for S-Video
(Y/C) signals, such as from an S-VHS or Hi8 device. It is normally connected to the
S-Video output of a playback VTR using a standard 4-pin to 4-pin S-Video cable.
Some JVC ‘industrial’ type S-VHS players use a 7-pin connector for their S-Video
output. To interface with such machines, a 7-pin to 4-pin adapter cable is required
from the manufacturer of the VTR.
Component Analog Video Input
These three BNC connectors, labeled CAV-Y In, R-Y In, and B-Y In, are used to input
the signals from analog component devices, such as Betacam® VTRs.
If component analog video input is not needed, the CAV-Y In connection can be
reassigned as a second composite video input with the CAV-Y Composite option in the
Video Setup menu (see Chapter 5, “Menus: Video Setup”).
Composite Video Input
This BNC connector, labeled Composite In, is used to feed composite
1 Vp-p 75Ωvideo to the DPS-475/575. In Synchronizer mode, the input video signal
must be direct color or monochrome (such as from a satellite feed or live camera); in
Timebase Corrector or auto switching mode, the input signal can be connected to the
video output of a heterodyne source such as a camcorder or VTR.
Serial Digital Input
This BNC connector, labeled SDI In, accepts serial digital ITU-R BT.601 video and
embedded audio data at a rate of 270 megabits per second.
Serial Digital Reclocked Output
This BNC connector, labeled SDI Reclocked, provides a digitally-regenerated copy of
the SDI Input, with no processing applied.
Serial Digital Outputs
These BNC connectors, labeled SDI Out and SDI Out-2, provide the processed and
synchronized serial digital ITU-R-BT.601 video and embedded audio, 270 megabits-
per-second output.
Composite Video Output
These BNC connectors, labeled Composite Out and Composite Out-2, provide
processed, synchronized/timebase-corrected versions of any of the input signals. If the
unit is set to Bypass mode, the Composite Input is bypassed directly to the Composite
Out output (the left-most of the two connectors), providing an unprocessed signal.
Composite Out-2 operates as normal (providing processed output from the selected
video input). The Composite Input is automatically bypassed to the Composite Out
output when the unit is off.
Component Analog Video Output
These three BNC connectors, labeled CAV-Y Out, R-Y Out, and B-Y Out, provide
processed, synchronized/timebase-corrected analog component video output.
6
DPS-475/575 Service Manual
This manual suits for next models
3
Table of contents
Other Leitch Computer Hardware manuals