Ensemble Designs Avenue 7900 User manual

This data pack provides detailed installation, configuration and operation information for
the 7900 HD Up/Down/Cross Converter module as part of the Avenue Signal
Integration System.
The module information in this data pack is organized into the following sections:
• Module Overview
• Applications
• Installation
• Cabling
• Module Configuration and Control
°Front Panel Controls and Indicators
°Avenue PC Remote Control
°Avenue Touch Screen Remote Control
• Troubleshooting
• Software Updating
• Warranty and Factory Service
• Specifications
7900-1
Model 7900
HD Up/Down/Cross
Converter
Data Pack
Revision 2.3 SW v2.3.3
ENSEMBLE
DESIGNS

MODULE OVERVIEW
The 7900 module is a flexible, configurable up and downconverter for use in broadcast and
post-production. It can process SD (Standard Definition) signals into HD, downconvert HD
signals into SD, and perform format and aspect ratio conversion on both SD and HD
signals. Refer to the functional block diagram for the module on the next page.
The 7900 can be configured to continually output a facility’s preferred HD format. Any HD
signal connected to the input will be converted to the correct format for the output. And if
the 8415 audio option is installed, the audio will be automatically processed as well.
Upconversion – When configured as an upconverter, the 7900 has an SD SDI input and
four HD SDI outputs. Excellent for on-air use, the module is equally at home in an HD
island, a signal ingest installation, or in a production application.
The 7900 uses sophisticated edge and motion adaptive noise reduction, ensuring delivery
of a pristine output that is excellent for use in broadcast. All processing is performed on
progressive signals at full bandwidth 4:4:4 for optimum signal quality. Signals are
interlaced and de-interlaced as required with motion adaption and edge interpolation.
Aspect ratio conversion choices include: Anamorphic, Pillarbox, Crop, and Manual.
Input standard and frame rate are auto-detected. The 7900 automatically performs 16-bit
SD to HD color space conversion. The built-in Proc Amp provides adjustment of signal
parameters with controls for Video Gain, Chroma, Pedestal, and Hue. Vertical interval
data is faithfully preserved and is passed from SD to HD with several choices for handling
the embedded timecode. The upconverted output is timeable with respect to the reference
input.
Downconversion – When used as a downconverter, the 7900 has an HD SDI input and
four SD SDI outputs. Two of the SD output BNCs can be configured as SD SDI or compos-
ite by setting jumpers on the module circuit board.
The downconversion process includes picture detail enhancement and anti-alias filtering
which makes for a pristine SD output. The aspect ratio conversion process offers resizing
and repositioning with choices for Anamorphic, Letterbox, Crop and Manual. The 7900
automatically adjusts between HD and SD color space and gamma. Proc amp controls are
provided in the form of video, chroma, setup, and hue. Both the digital and analog outputs
are timeable with respect to the reference input. Composite outputs can be timed into
house with proper subcarrier and phase.
Cross conversion – The 7900 provides cross conversion between HD 1.5 Gb/s formats,
processing all popular variations of 1080 and 720, making it simple for every facility to
ingest any type of HD signal.
All popular variations of 720p, 1080i, 1080sF, and 1080p are supported. The 7900 converts
between any HD signals within the 59.94/23.98/29.97 family, within the 50/25 fps family,
or within the 60/30 fps family. 3:2 pulldown is used when converting between 59.94 and
23.98. Film mode is automatically detected.
Meta Data – Closed captioning in standard definition is carried in the traditional
line 21 (NTSC)/line 23 (PAL) manner, while HD closed captioning is carried in data
packets in the vertical ancillary data space. The 7900 properly translates between these
two methods so that closed captioning content is converted transparently between video
standards and formats.
7900-2
Model 7900 HD Up/Down/Cross Converter

7900-3
7900 HD Up/Down/Cross Converter Functional Block Diagram, Landscape View
Model 7900 HD Up/Down/Cross Converter

7900-4
7900 HD Up/Down/Cross Converter Functional Block Diagram, Portrait View
Model 7900 HD Up/Down/Cross Converter

Automatic Aspect Ratio Conversion – The 7900 supports WSS (Wide Screen
Signaling), AFD (Active Format Description) to mark or identify the aspect ratio of the
video content. These flags are generated at the output of the module and read at the
module input. This allows the up and down conversion process to adapt automatically to
material that is already in letterbox or pillarbox form in order to produce the most appro-
priate conversion.
Audio Submodule Options – Audio is automatically delayed as needed to compensate
for the video processing in the 7900 when an audio submodule is installed. For complete
audio processing, choose from three different audio submodules that plug onto the main
circuit board.
The 8415 is an 8-channel audio submodule with AES I/O that provides management of
embedded audio in the processing path, or supports audio embedding /disembedding
alongside the video processing elements. Embedded audio is safely bypassed around the
video frame store with the lip sync preserved. Level adjustments and channel shuffling
are accessed through the built-in audio mixer. All audio processing is performed at full
24-bit resolution by a digital signal processor (DSP).
The 7610 audio submodule provides carriage of up to eight channels of embedded audio
through the format conversion process. Embedded audio in the input signal is delayed to
match the video delay and preserve lip sync. The delayed content is reinserted in the
video output. No level adjustment or channel swapping is provided.
The 7615 audio submodule also provides processing for signals with eight channels of
embedded audio. It offers the same processing and AES I/O as the 8415, plus the ability to
decode Dolby-E signals.
Configuration And Control
The on-board CPU can monitor and report module ID information (slot location, software
version and board revision), power status, and ancillary data status to the optional frame
System Control module. This information can be accessed by the user or set to register an
alarm if desired using the remote control options available.
Power is derived from the ± 12 volt frame power. It is regulated to the required +5 volts
for the module by on-board regulator. The module is fused with a resettable fuse device.
If the fuse opens due to an overcurrent condition, the module will lose power. After pulling
the module, the fuse will reset automatically requiring no replacement fuse.
The 7900 can be configured locally or controlled and configured remotely with Avenue
Touch Screens, Express Panels, or Avenue PC Software. Alarm generators, configurable
user levels, module lock out, and customizable Virtual Modules are just some of the tools
included in the Avenue Control system.
Modules at software version 2.2.0 or later support SNMP (Simple Network Management
Protocol) monitoring. For each applicable signal processing module, module, signal, and
reference status are reported. For complete details on using SNMP monitoring, refer to
the Avenue System Overview in the manual that accompanies each frame.
Model 7900 HD Up/Down/Cross Converter
7900-5

APPLICATIONS
SD Upconversion
The 7900 module can be utilized to upconvert SD video from many different source types.
As shown in the example below, the SD ingest signal from a satellite is fed to a 7900
module where it is upconverted to feed an HD Master Control Switcher. The other three
outputs can be sent to other HD destinations.
In both up and downconversion, the module provides sophisticated adaptive noise reduc-
tion for noisy input signals for use in broadcast applications. Timing to a house reference
is available on the module, along with many other controls features for ensuring a clean,
stable signal.
HD Downconversion
The 7900 module can be utilized to down convert HD video to suit many applications. As
shown in the example below, the HD ingest signal from a satellite is fed to a 7900 module
where it is down converted to feed an SD Master Control Switcher. The other three
outputs can be sent to other SD destinations.
HD Master
Control
Switcher
Other HD
Destinations
SD
Signal In
House Reference
7900
Upconversion
7900 SD Upconverter Application
7900-6
7900
Down
Conversion
SD Master
Control
Switcher
Other SD
Destinations
HD
Signal In
House Reference
7900 HD Downconverter Application
Model 7900 HD Up/Down/Cross Converter

SD Aspect Ratio Conversion
The 7900 module can perform standard definition aspect ratio conversion to convert the
aspect ratio of the SD input signal to a different aspect ratio needed on the output.
In the example shown below, the input from an SD camera with 16:9 lenses can be fed a
an anamorphic signal to the 7900 where the aspect ratio can be corrected for feeding an
SD switcher requiring an aspect ratio of Letterbox 16:9.
HD Cross Conversion
The 7900 module can perform cross conversion when an HD input signal must be convert-
ed for an output application similar to the example shown below. As shown here, the
1080i input from an HD network feed is fed to the 7900 where the format is converted to
720p as required for input to an HD router.
Model 7900 HD Up/Down/Cross Converter
7900
Aspect
Ratio
Conversion
16:9 Lenses Letterbox 16:9
SD
Camera
SD
Switcher
7900 SD ARC Application
7900
Cross
Conversion
Network
Feed
HD
Router
1080i 720p
7900 HD Cross Application
7900-7

INSTALLATION
Submodule Installation
An optional audio submodule installs on the component side of the 7900 module circuit
board. If the option is ordered with the 7900 module, it will come already installed.
To install an audio submodule, locate the three connectors on the left side of the circuit
board as shown below and line the connectors up, checking the alignment. Press carefully
into place to seat the submodule.
SD or Composite Out BNC Configuration
Two of the four SD Out BNCs can be configured as either serial or composite outputs by
setting switches S3 (HD/SD Out 3 Cspt Out BNC) or S4 (HD/SD Out 4 Cpst Out
BNC). Refer to the illustration below for the locations of the switches on the rear of the
circuit board. Set each switch independently to the up position for CPST and the down
position for SER.
7900 Video Processing Module
Plug the 7900 module into any one of the slots in the 1 RU or 3 RU Avenue frame and
install the plastic overlay provided onto the corresponding group of rear BNC connectors
associated with the module location.
Note that the plastic overlay has an optional adhesive backing for securing it to the
frame. Use of the adhesive backing is only necessary if you would like the location to be
permanent and is not recommended if you need to change module locations. This module
may be hot-swapped (inserted or removed) without powering down or disturbing perfor-
mance of the other modules in the system.
CABLING
Refer to the 3 RU and 1 RU backplane diagrams of the module below for cabling
instructions. Note that unless stated otherwise, the 1 RU cabling explanations are identi-
cal to those given in the 3 RU diagram.
Model 7900 HD Up/Down/Cross Converter
7900-8
8415 Audio Processor
CPST
SER
CPST
SER
Set toggle switches to configure BNCs on the rear module.
S3 CPST or SER on BNC labeled HD/SD Out 3 Cpst Out
S4 CPST or SER on BNC labeled HD/SD Out 4 Cpst Out
S3
S4
Audio Submodule Installation and BNC Configuration

Model 7900 HD Up/Down/Cross Converter
Connect an HD or SD
serial digital signal to the
HD/SD In BNC.
Connect HD or SD output
destinations to BNCs HD/SD Out 1
and HD/SD Out 2.
BNCs HD/SD Out 3 Cpst Out
and HD/SD Out 4 Cpst Out can
also be configured as either
serial or composite when the
module is outputting an SD
signal. Switches S3 and S4 on
the rear of the circuit board must
be set as CPST or SER.
3RU Backplane
1RU Backplane
7900-9
Connect AES audio input
signals to BNCs AES 1/2,
AES 3/4,AES 5/6, and
AES 7/8.
Connect an external ref-
erence signal to the Ref
In BNC.
Connect LTC (Longitudinal Time
Code) input if required to the 15-pin
connector as shown below.
1
6
+-
11
LTC Input

MODULE CONFIGURATION AND CONTROL
The configuration parameters for each Avenue module must be selected after installation.
This can be done remotely using one of the Avenue remote control options or locally using
the module front panel controls. Each module has a Remote/Local switch on the front
edge of the circuit board which must first be set to the desired control mode.
The configuration parameter choices for the module will differ between Remote and
Local modes. In Remote mode, the choices are made through software and allow more
selections. The 7900 Parameter Table later in this section summarizes and compares
the various configuration parameters that can be set remotely or locally and the
default/factory settings. It also provides the default User Levels for each control. These
levels can be changed using the Avenue PC application
If you are not using a remote control option, the module parameters must be configured
from the front panel switches. Parameters that have no front panel control will be set to a
default value. The Local switches are illustrated in the Front Panel Controls and
Indicators section following the 7900 Parameter Table. The Local switches are inac-
tive when the Remote/Local switch is in the Remote position.
In the Remote mode, Avenue module parameters can be configured and controlled from
one of the remote control options, the Avenue Touch Screen, Avenue Express Control
Panel, or the Avenue PC Application. Once the module parameters have been set remotely,
the information is stored on the module CPU. This allows the module to be moved to a dif-
ferent slot in the frame at your discretion without losing the stored information.
For setting the parameters remotely using the Avenue PC option, refer to the Avenue PC
Remote Configuration section of this document.
For setting the parameters remotely using the Avenue Touch Screen option, refer to the
Avenue Touch Screen Remote Configuration section of this document following
Avenue PC.
Express Panel operation is described in the data pack that accompanies the control panel
option.
Model 7900 HD Up/Down/Cross Converter
7900-10

Model 7900 HD Up/Down/Cross Converter
7900 Parameter Table
CONTROL LOCAL REMOTE FACTORY
DEFAULT
DEFAULT
USER LEVEL
Reference Source Ext Ref
Ext Ref
Master Ref
Video In Ref
Ext Ref Level 1
Mode
Mode Switch1:
Ana or Proc
Mode Switch 2:
Box or Crop
Anamorphic
Pillar Box
Crop Sides
Manual
Anamorphic Level 1
Up Anamorphic
Anamorphic
Pillar Box
Crop
Manual
Anamorphic Level 1
Down Anamorphic
Anamorphic
Letterbox 16:9
Letterbox 14:9
Crop
Manual
Anamorphic Level 1
HD Cross Anamorphic Anamorphic
Manual Anamorphic Level 1
SD ARC Anamorphic
Anamorphic
Letter 16:9
Letter 14:9
Letter 13:9
Pillar
Crop Sides 75%
Crop Sides 84%
Crop Top/Bot
WSS/AFD Auto 16x9
WSS/AFD Auto 14x9
WSS/AFD Auto 4x3
Manual
Anamorphic Level 1
Output Standard
Format Switch1:
HD or SD
Format Switch 2:
1080i or 720p
If 1080i:
Format Switch 3:
1080i or sF
720p/50
720p/59.94
1080i/50
1080i/59.94
1080i/60
1080i/25
1080i/23.98
1080sF/25
1080sF/23.98
1080sF/24
1080i/59.94 Level 1
7900-11

7900 Parameter Table
CONTROL LOCAL REMOTE FACTORY
DEFAULT
DEFAULT
USER LEVEL
Width (Manual) 100% +/ – 100% 100% Admin
Height (Manual) 100% +/ – 100% 100% Admin
Hor Position
(Manual) 0% +/ – 100% 0% Admin
Ver Position
(Manual) 0% +/ – 100% 0% Admin
Noise Reduce Off
Off
Low
Medium
High
Off Admin
Detail Off
Off
Low
Medium
High
Off Admin
3:2 Detect Off Off
On Off Level 2
Gain 100% 0 – 150% 100% Admin
Chroma 100% 0 – 150% 100% Admin
Pedestal 0 mV +/ – 30 mV 0 mV Admin
Hue 0 IRE +/ – 180 degrees 0 degrees Admin
Vert Blanking Wide Wide
Narrow Wide Level 1
Test Pattern Off
Off
Bars
Black
Off Level 1
Hor Timing 0 clocks +/ – 2000 clocks 0 clocks Admin
Ver Timing 0 lines +/ – 1000 lines 0 lines Admin
7900-12
Model 7900 HD Up/Down/Cross Converter

CONTROL LOCAL REMOTE FACTORY
DEFAULT
DEFAULT
USER LEVEL
Cpst Out Setup Off Off
On Off Level 2
Ch 1-8 In (level) 0 dB –70 to +12 dB 0 dB Level 1
Ch 1-8 Output Bus
Ch 1 – Output 1
Ch 2 – Output 2
Ch 3 – Output 3
Ch 4 – Output 4
Ch 5 – Output 5
Ch 6 – Output 6
Ch 7 – Output 7
Ch 8 – Output 8
Output Bus 1 – 8
Tie
Invert
Default
Ch 1 – Output 1
Ch 2 – Output 2
Ch 3 – Output 3
Ch 4 – Output 4
Ch 5 – Output 5
Ch 6 – Output 6
Ch 7 – Output 7
Ch 8 – Output 8
Level 1
Auto Track On Off
On On Level 1
Bulk Delay 0 msec 0 – 1000 msec 0 msec Level 1
1/2 Input
3/4 Input
5/6 Input
7/8 Input
Audio Switch 1:
AES or Embed
AES 1/2
AES 3/4
AES 5/6
AES 7/8
SD 1/2
SD 3/4
SD 5/6
SD 7/8
AES 1/2
AES 3/4
AES 5/6
AES 7/8
Level 1
1/2, 3/4, 5/6, 7/8
Demux Group
Group 1 Group 1
Group 2
Group 3
Group 4
Group 1 Level 1
1/2, 3/4, 5/6, 7/8
Mode
Auto Audio
Data
Auto
Auto Level 1
Audio Embed
A and B
A Replace All
B Replace All
Off
Replace
Cascade
Replace All
A Replace All
B Replace All
Level 1
7900 Parameter Table (Continued)
7900-13
Model 7900 HD Up/Down/Cross Converter

7900-14
CONTROL LOCAL REMOTE FACTORY
DEFAULT
DEFAULT
USER LEVEL
Mux Group
A and B Group 1
Group 1
Group 2
Group 3
Group 4
Group 1 Level 1
Dig Ref Level –20 dBFS –20 dBFS
–18 dBFS –20 dBFS Level 1
CC Input Line Line 21 Lines 19 – 23 Line 21 Admin
Captions Out Off Off
On Off Level 1
Timecode Source LTC
LTC
VITC Line 14
VITC Line 15
VITC Line 16
VITC Line 17
VITC Line 18
VITC Line 19
VITC Line 20
LTC Level 1
Timecode Output Off
Off
LTC
VITC
LTC & VITC
Off Level 1
AFD Out AFD Auto
AFD 0001
AFD 0010
AFD 0011
AFD 0100
AFD 0101
AFD 0110
AFD 0111
AFD 1000
AFD 1001
AFD 1010
AFD 1011
AFD 1100
AFD 1101
AFD 1110
AFD 1111
AFD Auto Level 1
7900 Parameter Table (Continued)
Model 7900 HD Up/Down/Cross Converter

Front Panel Controls and Indicators
The front edge indicators and switch settings are shown in the diagram below:
7900-15
Video In green LED:
ON indicates signal is present
and equalized.
OFF indicates no SD input or the
signal may not be present or
cable equalization exceeds
maximum length allowed.
Pwr green LED:
Indicates the presence (ON) or
absence (OFF) of power (+5V).
Run green LED:
OFF:
A power fault of halted CPU
ON:
A halted CPU
FAST BLINK:
CPU Run error
SLOW BLINK:
System OK. (If SPI control is
active from the main frame
System Control Module, all
Run indicators will be
synchronized.)
AES 1/2, AES 3/4, AES 5/8,
AES 7/8 green LEDs:
ON when AES audio is detected
on the corresponding audio
input.
OFF when no AES audio is
detected on the corresponding
audio input.
Ref In green LED:
ON indicates external reference
signal is present and valid.
OFF indicates no external refer-
ence is detected or is invalid.
Embed green LED:
On when an audio ancillary packet
is detected in the serial stream.
OFF when no audio ancillary
packet is detected.
Remote/Local switch:
Set to the mode you
will be using. Format:
HD/SD switch:
Select the input format as HD or SD.
1080/720p switch:
Select the video up conversion
format to 1080 or 720p.
1080i/sF switch: When a 1080 video
format is selected above, select
either 1080i or 1080sF.
Mode:
Ana/Proc switch:
Set the output mode to Ana
(Anamorphic) or Proc (Process).
Box/Crop switch:
When Proc is selected above, set
the output to either Box or Crop.
Aud(io):
AES/Embed switch:
Select AES or Embed to identify
what audio source is being input to
the module.
Model 7900 HD Up/Down/Cross Converter

Model 7900 HD Up/Down/Cross Converter
Avenue PC Remote Configuration
The Avenue PC remote control menus for this module are illustrated and explained below.
Refer to the 7900 Parameter Table for a summary of available parameters that can be
set remotely through the menus illustrated. The Configuration Summary gives tips and
general background information on setting the parameters. For more information on using
Avenue PC, refer to the Avenue PC Control Application Software data pack.
Parameter fields that are grayed out can indicate one of the following conditions:
• An option is not installed.
• The function is not active.
• The module is locked.
• The User Level set with Avenue PC is not accessible from the current User Level.
7900 Avenue PC Menus
The Vid In menuallows you to configure the following:
•Ref Source – use this control to set the reference input source.
Status reporting is provided for the following conditions:
•Input – indicates signal is present and equalized.
•WSS/AFD In – the Wide Screen Signal/Active Format Descriptions In indicator
displays the format of the input signal connected to the Video In BNC as one of the
following: None, Full Frame, Letter 14:9, Letter 14:9T, Letter 16:9, Letter
16:9T, Anamorphic, Pillar 4x3, Pillar 14x9, Unknown WSS, Unknown AFD.
•Reference – reports the status of the reference input as either No Reference,
Ref 525 Lock, Ref 625 Lock, or Ref TLS Lock.
7900-16

The Mode menu allows you to configure the following:
• Mode – indicates the mode in which the unit is running (Upconvert,
Downconvert, Cross Convert, ARC [Aspect Ratio Convert]). The mode is
determined by the output selection made in the Format menu.
• Output Standard – use this control to set the desired output format (HD
1080i, HD 720p, HD 1080p, HD 1080sF, SD). The unit automatically
detects the input standard.
•Up– use this control to set the desired output aspect ratio when upconverting
the input signal (Anamorphic, Letter 16:9, Letter 14:9, Letter 13:9,
Pillar, Crop Sides 75%, Crop Sides 84%, Crop Top/Bot, WSS/AFD Auto
16x9, WSS/AFD Auto 14x9, WSS/AFD Auto 4x3, Manual). When
Manual is selected, use the Manual menu to set the aspect ratio.
• Down – use this control to set the desired output aspect ratio when
downconverting the input signal (Anamorphic, Letter 16:9, Letter 14:9,
Letter 13:9, Pillar, Crop Sides 75%, Crop Sides 84%, Crop Top/Bot,
WSS/AFD Auto 16x9, WSS/AFD Auto 14x9, WSS/AFD Auto 4x3,
Manual). When Manual is selected, use the Manual menu to set the
aspect ratio.
• HD Cross – use this control to set the desired output aspect ratio when
cross converting from one type of HD signal to another (Anamorphic,
Letter 16:9, Letter 14:9, Letter 13:9, Pillar, Crop Sides 75%, Crop
Sides 84%, Crop Top/Bot, WSS/AFD Auto 16x9, WSS/AFD Auto 14x9,
WSS/AFD Auto 4x3, Manual). When Manual is selected, use the Manual
menu to set the aspect ratio.
• SD ARC – use this control to set the desired output aspect ratio when
aspect ratio converting between 4:3 and 16:9 (Anamorphic, Letter 16:9,
Letter 14:9, Letter 13:9, Pillar, Crop Sides 75%, Crop Sides 84%,
Crop Top/Bot, WSS/AFD Auto 16x9, WSS/AFD Auto 14x9, WSS/AFD
Auto 4x3, Manual). When Manual is selected, use the Manual menu to
set the aspect ratio.
7900-17
Model 7900 HD Up/Down/Cross Converter

Model 7900 HD Up/Down/Cross Converter
When Manual is selected in the Mode menu, you may set the output format mode of the
upconverted HD output with the following controls:
• Width – sets the aspect ratio width.
•Height – sets the aspect ratio height.
•Hor Position – sets the horizontal position of the output.
•Ver Position – sets the vertical position of the output.
Use the Default button in each control to return to the default value.
Use the Config menu below to enable the following controls:
•Noise Reduce – adjusts the amount of noise reduction on the output signal
from Off, Low, Medium, or High. The typical setting for this parameter is
Off or Low.
•Detail – adjusts the amount of picture detail enhancement on the output
from Low, Medium, or High. The typical setting for this parameter is Off
or Low.
•3:2 Detect – turns the control to detect video that has been converted from
film, On or Off. Use this only for film applications. The typical setting for
this parameter is Off.
7900-18

The Proc menu shown below allows you to adjust the following video processing parameters
for the signal:
•Gain – adjust the percentage of overall gain (luminance and chrominance).
•Chroma – adjust the percentage of chroma amplitude.
•Pedestal – adjust the pedestal (black) level of the signal in IRE.
•Hue – adjust the hue of the signal ± 180 degrees.
7900-19
Model 7900 HD Up/Down/Cross Converter

Use the Vid Out menu shown below to adjust the following parameters:
•Vert Blanking – set the blanking mode to Narrow (lines 1-9 are blanked in
NTSC, lines 1-6 in PAL) or Wide (lines 1-20 in NTSC, lines 1-22 in PAL).
• Test Pattern – select Bars or Black to be sent to the video output.
•Hor Timing – adjust the horizontal timing of the output signal to place the
leading edge of sync coincident with other sources.
•Vert Timing – set the vertical timing to a typical setting of 0 lines.
•Cpst Out Setup – turn setup on the composite output On or Off (525 only) when
switch S3 and/or S4 is configured as CPST on the circuit board for an SD output.
7900-20
Model 7900 HD Up/Down/Cross Converter