evertz 7751TG2-HD User manual

7700 MultiFrame Manual
7751TG2-HD Dual HD-SDI Test Signal Generator with Embedded Audio
Revision 1.8
TABLE OF CONTENTS
1. OVERVIEW.......................................................................................................................................... 1
2. INSTALLATION................................................................................................................................... 3
3. SPECIFICATIONS............................................................................................................................... 5
3.1. GENLOCK INPUT....................................................................................................................... 5
3.2. HD SERIAL VIDEO OUTPUTS................................................................................................... 5
3.3. SD SERIAL VIDEO OUTPUTS (7751TG2-CF-HD ONLY)......................................................... 6
3.4. ELECTRICAL ............................................................................................................................. 6
3.5. COMPACT FLASH MEMORY (7751TG2-CF-HD VERSION)..................................................... 6
3.6. PHYSICAL.................................................................................................................................. 6
4. STATUS LEDS.................................................................................................................................... 7
4.1. MODULE STATUS LEDS........................................................................................................... 7
4.2. AUDIO GROUP STATUS LEDS................................................................................................. 7
5. CARD EDGE CONTROLS .................................................................................................................. 8
5.1. SELECTING THE OUTPUT VIDEO FORMAT............................................................................ 8
5.2. SELECTING THE GENLOCK REFERENCE TYPE.................................................................. 10
5.2.1. Selecting the Genlock Source....................................................................................... 10
5.3. SELECTING THE COLOUR SPACE IN 4:4:4 MODE............................................................... 10
5.4. SELECTING THE OUTPUT MODE (4:2:2 OR 4:4:4) ............................................................... 11
5.5. SELECTING THE TEST SIGNAL............................................................................................. 11
5.5.1. Description of Unique Test Signals............................................................................... 13
5.5.1.1. Clean Aperture with Graticule.......................................................................... 13
5.5.1.2. Production Aperture......................................................................................... 13
5.5.1.3. Grey Signals .................................................................................................... 14
5.5.1.4. 4x3 Colour Bars............................................................................................... 14
5.5.1.5. Long Sequence Signals................................................................................... 14
5.5.1.6. Bouncing Box................................................................................................... 14
5.5.1.7. Four Frame 24P and 24PsF Signals................................................................ 14
5.5.2. Description of Unique 4:4:4 GBRA Test Signals........................................................... 15

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5.5.2.1. FS Bars with 2 Scalings................................................................................... 15
5.5.2.2. FS 10 Step B & W Pluge.................................................................................. 15
5.5.2.3. FS 7 Step B & W Pluge.................................................................................... 15
5.6. CONFIGURING THE TEST GENERATOR USING THE ON SCREEN MENU ......................... 15
5.6.1. Top Level Menu Structure............................................................................................. 16
5.6.2. Configuring 7751TG2-HD Genlock Input ...................................................................... 16
5.6.2.1. Selecting the Genlock Input Type.................................................................... 17
5.6.2.2. Setting the Timing of the Output Video with Respect to the Genlock Input ..... 17
5.6.3. Configuring 7751TG2-HD Embedded Audio Parameters ............................................. 20
5.6.3.1. Audio Group Selection..................................................................................... 20
5.6.3.2. Audio Channel Selection.................................................................................. 21
5.6.3.3. Audio Group Embedding.................................................................................. 21
5.6.3.4. Audio Level Control (7751TG2-HD version only)............................................. 21
5.6.3.5. Selecting the Wav File for AES 1 (7751TG2-CF-HD version only).................. 22
5.6.3.6. Setting the Length of Mute to Insert at the Start of Wav File
(7751TG2-CF-HD version only)....................................................................... 22
5.6.4. Configuring the On Screen Message Display ............................................................... 23
5.6.4.1. Editing the On Screen Message Display.......................................................... 23
5.6.4.2. Positioning the On Screen Message Display................................................... 23
5.6.4.3. Setting the Display Time for the Signal Name Display..................................... 24
5.6.5. Configuring the TG/Link A and BLK/Link B (LINK SETUP)........................................... 24
5.6.5.1. Selecting Which Link Has Embedded Audio.................................................... 24
5.6.5.2. Selecting Which Link Will Show the On Screen Display Items........................ 24
5.6.5.3. Selecting Which Link Will Contain Embedded Test Captions.......................... 25
5.6.6. Selecting the Bitmap or Test Pattern from Compact Flash
(7751TG2-CF-HD version only) .................................................................................... 25
5.6.6.1. Selecting the Bitmap to Load from Compact Flash.......................................... 26
5.6.6.2. Selecting the Test Pattern................................................................................ 26
5.6.6.3. Displaying the Currently Loaded Pattern ......................................................... 26
5.6.6.4. Selecting the Link B Output Mode.................................................................... 26
5.6.6.5. Selecting the Link B Output Pattern................................................................. 27
5.7. LOADING THE COMPACT FLASH (7751TG2-CF-HD VERSION ONLY) .................................... 27
6. JUMPERS.......................................................................................................................................... 31
6.1. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS ........................................................................................ 31
6.2. CONFIGURING THE MODULE FOR FIRMWARE UPGRADES.............................................. 31
6.3. SELECTING WHETHER THE GENLOCK REFERENCE INPUT IS TERMINATED................. 32
7. MENU QUICK REFERENCE............................................................................................................. 33
8. VistaLINK®REMOTE MONITORING/CONTROL............................................................................. 34
8.1. WHAT IS VISTALINK®?............................................................................................................... 34
8.2. VISTALINK®MONITORED PARAMETERS .............................................................................. 34

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Revision 1.8
8.3. VISTALINK®CONTROLLED PARAMETERS ........................................................................... 35
Figures
Figure 1-1: 7751TG2-HD Block Diagram............................................................................................. 2
Figure 2-1: 7751TG2-HD Rear Panels ................................................................................................ 3
Figure 5-1: Default Tri-Level Genlock Reference Timing................................................................... 18
Figure 5-2: Default Bi-Level Genlock Reference Timing.................................................................... 18
Figure 5-3: Default Signal Alignment in 59.94 Hz Field Rate Systems.............................................. 19
Figure 5-4: Default Signal Alignment in 50 Hz Field Rate Systems................................................... 19
Figure 5-5: Main Compact Flash Directory Structure......................................................................... 28
Figure 5-6: Audio Directory................................................................................................................ 29
Figure 5-7: The 1080i5994 Video Standard Directory ....................................................................... 30
Figure 6-1: Location of Jumpers........................................................................................................ 31
Tables
Table 4-1: Audio Group Status LEDs................................................................................................... 7
Table 5-1: DIP Switch Functions – Overview....................................................................................... 8
Table 5-2: Video Format DIP Switch Settings...................................................................................... 9
Table 5-3: Genlock Reference Switch Settings ................................................................................. 10
Table 5-4: 4:4:4 Colour Space Switch Settings ................................................................................. 10
Table 5-5: Output Mode (4:2:2 or 4:4:4) Switch Settings................................................................... 11
Table 5-6: Test Signal Selection........................................................................................................ 12
Table 5-7: Additional 4:4:4 Full Scale RGB Test Signals .................................................................. 13
Table 8-1: VistaLINK®Monitored Parameters ................................................................................... 34
Table 8-2: VistaLINK®Controlled Parameters................................................................................... 35

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7700 MultiFrame Manual
7751TG2-HD Dual HD-SDI Test Signal Generator with Embedded Audio
Revision 1.8
REVISION HISTORY
REVISION DESCRIPTION DATE
1.0 First release Mar 04
1.1 New signals added, new menu items added for Audio Link Setup Jul 05
1.1.1 Fixed type in 720p/50 entry of Table 5-2 Aug 05
1.2 New 444 Full Scale RGB signals added Jan 06
1.3 Added –CF version of the 7751TG2-HD module Jan 06
1.4 Added compact flash loading instructions for –CF version Mar 06
1.5 Added SD Test Pattern Support on –CF version and added VistaLINK®section Feb 07
1.6 Updated audio level control for the 7751TG2-HD module only Nov 08
1.7 General format cleanup May 09
1.8 Updated Jumper drawing Figure 6-1 Jun 09
Information contained in this manual is believed to be accurate and reliable. However, Evertz assumes no responsibility for the use thereof nor for
the rights of third parties, which may be affected in any way by the use thereof. Any representations in this document concerning performance of
Evertz products are for informational use only and are not warranties of future performance, either expressed or implied. The only warranty offered
by Evertz in relation to this product is the Evertz standard limited warranty, stated in the sales contract or order confirmation form.
Although every attempt has been made to accurately describe the features, installation and operation of this product in this manual, no warranty is
granted nor liability assumed in relation to any errors or omissions unless specifically undertaken in the Evertz sales contract or order confirmation.
Information contained in this manual is periodically updated and changes will be incorporated into subsequent editions. If you encounter an error,
please notify Evertz Customer Service department. Evertz reserves the right, without notice or liability, to make changes in equipment design or
specifications.

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7700 MultiFrame Manual
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Revision 1.8 Page - 1
1. OVERVIEW
The 7751TG2-HD Test Signal Generator modules provide a cost-effective method of generating 1.5 Gb/s
HDTV 4:2:2 and 4:4:4 test signals. The 7751TG2-HD is ideal for checking signal path integrity, or to
determine system performance over varying cable lengths. The 7751TG2-HD generates test signals in a
wide variety of HDTV video formats. In single link mode, the 7751TG2-HD outputs a SMPTE 292M 4:2:2
test signal on two outputs and a selected SMPTE 292M 4:2:2 black signal on the remaining two outputs. In
dual link mode, the 7751TG2-HD outputs a SMPTE 372M 4:4:4 test signal on two dual-link outputs.
The 7751TG2-HD provides an analog genlock input that allows you to synchronize the test signals to your
facility’s horizontal and vertical timing.
The 7751TG2-CF-HD version has the ability to generate both 270 Mb/s SD-SDI and 1.5 Gb/s HD-SDI test
signals and provides downloadable bitmaps for trouble slides or test slides. Users may store their own
designed bitmaps (trouble slides, test slides, or test signals) into a directory structure on the compact
flash. The 7751TG2-CF-HD comes with a 128MB compact flash. All sections of this manual apply to the
regular version as well as the 7751TG2-CF-HD unless otherwise noted.
Separate audio tones can be embedded into each channel of all four embedded audio groups. The user
can independently enable or disable embedding on any of the four audio groups. In dual link mode, the
selected audio groups will be embedded into each link. The 7751TG2-HD Audio Level range is
controllable from mute (silence), 0dBFS to -28 dBFS in increments of 2dBFS. The Audio level for the
7751TG2-CF-HD is fixed at -20 dB full scale.
Features:
•Wide variety of 1080i, 1035i, 1080p, 480p and 720p output formats
•Supports SMPTE 292M and SMPTE 372M Dual Link
•8 position DIP switch selects output format, single or dual link and genlock reference
•Card edge toggle switch selects test signal
•Selectable genlock input format – bi-level or tri-level sync, colour black
•16 embedded audio tones, selectable audio group assignment into all four groups
•4 output drivers
•On Screen display of test signal names
•On Screen setup menu
•Tally output upon loss of genlock
•Front panel LEDs indicate genlock presence, module fault and embedded audio signal presence on
the output
•Embedded SMPTE 334M Closed Caption Test signals
Additional features (7751TG2-CF-HD):
•Supports 525 and 625 line formats
•Compact flash for user created bitmaps (trouble slides, test slides, or test signals)

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Cable
Driver
Sync
Separator
Gen Lock
Present
Gen Lock
Audio
Present
Cable
Driver
Cable
Driver
Module
Status
Card Edge
Control
Signal
Generator Audio Embedder
Audio Group
P / S
P / S
Link B
Link A
HD
Serial Outputs
1.5 Gb/s
Compact
Flash
(7751TG2-CF-
HD only)
Control
Embedded Audio
Presence
VistaLINK®
Interface Audio
Embedder
Figure 1-1: 7751TG2-HD Block Diagram
"
From this point forward, the 7751TG2-HD and the 7751TG2-CF-HD modules will be
referred to as the “7751TG2-HD”, unless the feature in question is applicable only
to one of the modules, in which case the specific model number will be referenced.

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2. INSTALLATION
The 7751TG2-HD module comes with a companion rear plate that has 5 BNC connectors. For information
on mounting the rear plate and inserting the module into the frame see section 3 of the 7700FR chapter.
Figure 2-1: 7751TG2-HD Rear Panels
GENLOCK: Input BNC connector for analog genlock reference. The genlock signal may be a HD tri-
level sync, a standard definition colour black video or 0.3 V bi-level sync. DIP switch 6
enables the genlock reference, and the Genlock Setup On Screen menu is used to
configure the genlock type and to set up the timing of the output signal with respect to the
reference input. Table 5-2 provides a list of the valid reference signal types for the HD
output video format you have selected. Jumper J32 selects whether the reference input is
terminated or high impedance. (See section 6.3)

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HD OUTPUT TG/LINK A: This pair of BNC connectors has serial component video outputs compatible
with the SMPTE 292M standard. The 7751TG2-CF-HD model supports 525 and 625 line
formats compatible with SMPTE 259M. DIP switches 1 to 5 select the video standard (refer
to Table 5-2). When the 7751TG2-HD is operating the 4:2:2 mode, these outputs contain
the test signal. When the 7751TG2-HD is operating the 4:4:4 mode, these outputs contain
the 4:2:2 channel (YCB(even)CR(even) or GB(even)R(even)) part of the SMPTE 372M test signal
known as Link A.
HD OUTPUT BLK/LINK B: This pair of BNC connectors has serial component video outputs compatible
with the SMPTE 292M standard. The 7751TG2-CF-HD model supports 525 and 625 line
formats compatible with SMPTE 259M. DIP switches 1 to 5 select the video standard. (See
Table 5-2) When the 7751TG2-HD is operating the 4:2:2 mode, these outputs contain a
black video signal. When the 7751TG2-HD is operating the 4:4:4 mode, these outputs
contain the Alpha channel (ACB(ODD)CR(odd) or AB(ODD)R(odd)) part of the SMPTE 372M test
signal known as Link B.

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3. SPECIFICATIONS
3.1. GENLOCK INPUT
Type: Menu selectable - depends on output video format (see Table 5-2)
HD Tri-level Sync
NTSC or PAL Colour Black 1 V p-p
Composite Bi-level sync (525i or 625i) 300 mV
Connector: BNC per IEC 61169-8 Annex A
Termination: 75 ohm (jumper selectable)
3.2. HD SERIAL VIDEO OUTPUTS
Standard: SMPTE 292M, 4:2:2 YCBCR(single link)
SMPTE 372M, 4:4:4 YCBCRor 4:4:4 GBR (dual link)
SMPTE 259M, 270Mb/s
Selectable as per Table 5-2
Number of Outputs:
Single Link Mode: 2 outputs of selected test signal
2 outputs of Black video
Dual Link Mode: 2 dual link outputs of selected test signal
Embedded Audio: Up to 4 tones in one audio group as specified in SMPTE 299M. Selectable tone
frequencies (from 60 Hz to 10 kHz) and audio group. Audio can be embedded on
either or both links. For the 7751TG2-HD version, the Audio Level range is
controllable from mute (silence), 0dBFS to -28dBFS in increments of 2dBFS. The
Audio Level is set to -20 dB Full Scale for the 7751TG2-CF-HD version.
Up to 4 tones in one audio group as specified in SMPTE 272M, available on
7751TG2-CF-HD when in 525 and 625 line mode only
Source ID: User programmable On Screen 15 character source ID message – selectable
position. On Screen message can be displayed on either or both links
Connectors: 4 BNC per IEC 61169-8 Annex A
Signal Level: 800mV nominal
V Phasing: Infinite lines
H Phasing: Infinite samples
DC Offset: 0V ±0.5V
Rise and Fall Time: 200ps nominal
Overshoot: <10% of amplitude
Wide Band Jitter: < 0.2 UI

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3.3. SD SERIAL VIDEO OUTPUTS (7751TG2-CF-HD ONLY)
Selectable as per Table 5-2
Number of Outputs: 4
Standard: SMPTE 259M-C (270 Mb/s)
Embedded Audio: Up to 4 tones in one audio group as specified in SMPTE 272M. Selectable tone
frequencies (from 60Hz to 10kHz) and audio group. For the 7751TG2-HD version,
the Audio Level range is controllable from mute (silence), 0dBFS to -28dBFS in
increments of 2dBFS. The Audio Level is set to -20 dB Full Scale for the 7751TG2-
CF-HD version.
Connectors: 4 BNC per IEC 61169-8, Annex A
Signal Level: 800mV nominal
DC Offset: 0V ±0.5V
Rise and Fall Time: 740ps nominal
Overshoot: <10% of amplitude
Wide Band Jitter: < 0.2 UI
3.4. ELECTRICAL
Voltage: + 12VDC
Power: 6 Watts
EMI/RFI: Complies with FCC Part 15, class A and EU EMC directive
3.5. COMPACT FLASH MEMORY (7751TG2-CF-HD VERSION)
Size: 128MB Removable Compact Flash
3.6. PHYSICAL
350FR: 1
7700FR-C: 1
7800FR: 1
Stand Alone Enclosure:
Dimensions: 14 “ L x 4.5 “ W x 1.9 “ H
(355 mm L x 114 mm W x 48 mm H)
Weight: approx. 1.5 lbs. (0.7 Kg)

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4. STATUS LEDS
4.1. MODULE STATUS LEDS
The location of the Status LEDs is shown in Figure 6-1.
MODULE OK: This Green LED will be On when the module is operating properly.
LOCAL FAULT: This Red LED will blink on and off if the microprocessor is not running. This LED
will be on solid when there is a fault in the module power supply.
SIGNAL PRESENT: This Green LED will be On when there is a valid genlock signal present at the
module genlock input.
"
This LED does not necessarily indicate that the genlock signal is the correct frame
rate for the selected output video format. For example, if a 59.94 Hz signal is
required for the selected output video format, but a 60 Hz signal is present at the
genlock input, the SIGNAL PRESENT LED will be On. In this case, the output video
will NOT be properly referenced but will constantly try to re-sync to the genlock
frame reference.
AUDIO: This Green LED will be On when there is audio embedded into the outputs.
4.2. AUDIO GROUP STATUS LEDS
Four LEDs located on the lower end of the module (opposite the DIP switch) indicate the presence of
embedded audio in the output video. The audio group LED 1 is located closest to the centre of the
module.
Group LED Colour Audio Group Status
Off There is no group 1 audio on the video output.
1 Green Group 1 audio is being embedded.
Off There is no group 2 audio on the video output.
2 Green Group 2 audio is being embedded.
Off There is no group 3 audio on the video output.
3 Green Group 3 audio is being embedded.
Off There is no group 4 audio on the video output.
4 Green Group 4 audio is being embedded.
Table 4-1: Audio Group Status LEDs

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5. CARD EDGE CONTROLS
The 7751TG2-HD is equipped with an 8 position DIP switch to allow the user to select various output
video formats. The On position is down, or closest to the printed circuit board. Table 5-1 provides an
overview of the DIP switch functions.
DIP Switch Function
1
2
3
4
5
Video Output Format Selection
6
7 Colour Space Selection
8 Dual Link Mode Enable
Table 5-1: DIP Switch Functions – Overview
A three position, return to centre toggle switch is used to select the various test signal patterns and is also
used in conjunction with a momentary pushbutton to operate the On Screen setup menu.
5.1. SELECTING THE OUTPUT VIDEO FORMAT
DIP switches 1 to 5 are used to select the output video format of the 7751TG2-HD module. The On
position is down, or closest to the printed circuit board. Table 5-2 shows the settings of the DIP switches
when selecting the video output formats, and the types of genlock signals that can be used with each.
"
For 480p/60 or 480p/59.94 format over SMPTE 292M interface use 1080i/60 or
1080i/59.94 respectively. Extra test signals for 480p are available only in these
video formats.

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DIP Switch Valid Genlock Types
1 2 3 4 5 Common
Name Pixels x Active Lines Frame Rate Progressive /Interlace Bi-Level Tri-Level
Off Off Off Off Off 1080i/60 1920 x 1080 30 I 525/60
1080i/60
1035i/60
1080p/30
1080p/30sF
On Off Off Off Off 1080i/59.94 1920 x 1080 29.97
(30/1.001) I 525/59.94
1080i/59.94
1035i/59.94
1080p/29.97
1080p/29.97sF
Off On Off Off Off 1080i/50 1920 x 1080 25 I 625/50 1080i/50 1080p/25
1080p/25sF
On On Off Off Off 1080p/30 1920 x 1080 30 P 525/60
1080i/60
1035i/60
1080p/30
1080p/30sF
Off Off On Off Off 1080p/30sF 1920 x 1080 30 P (sF) 525/60
1080i/60
1035i/60
1080p/30
1080p/30sF
On Off On Off Off 1080p/29.97 1920 x 1080 29.97
(30/1.001) P 525/59.94
1080i/59.94
1035i/59.94
1080p/29.97
1080p/29.97sF
Off On On Off Off 1080p/29.97sF 1920 x 1080 29.97
(30/1.001) P (sF) 525/59.94
1080i/59.94
1035i/59.94
1080p/29.97
1080p/29.97sF
On On On Off Off 1080p/25 1920 x 1080 25 P 625/50 1080i/50 1080p/25
1080p/25sF
Off Off Off On Off 1080p/25sF 1920 x 1080 25 P (sF) 625/50 1080i/50 1080p/25
1080p/25sF
On Off Off On Off 1080p/24 1920 x 1080 24 P 625/48 1080p/24
1080p/24sF
Off On Off On Off 1080p/24sF 1920 x 1080 24 P (sF) 625/48 1080p/24
1080p/24sF
On On Off On Off 1080p/23.98 1920 x 1080 23.98
(24/1.001) P 625/47.95
1080p/23.98
1080p/23.98sF
Off Off On On Off 1080p/23.98sF 1920 x 1080 23.98
(24/1.001) P (sF) 625/47.95 1080p/23.98
1080p/23.98sF
On Off On On Off 720p/60 1280 x 720 60 P 525/60 720p/60
Off On On On Off 720p/59.94 1280 x 720 59.94
(60/1.001) P 525/59.94 720p/59.94
On On On On Off 1035i/60 1920 x 1035 30 I 525/60
1080i/60
1080p/30
1080p/30sF
1035i/60
Off Off Off Off On 1035i/59.94 1920 x 1035 29.97
(30/1.001) I 525/59.94
1080i/59.94
1080p/29.97
1080p/29.97sF
1035i/59.94
On Off Off Off On 720p/50 1280 x 720 50 P 625/50 720p/50
Off On Off Off On 525i/59.94 1440 x 487 29.97
(30/1.001) I 525/59.94 N/A
On On Off Off On 625i/50 1440 x 576 25 I 625/50 N/A
Table 5-2: Video Format DIP Switch Settings

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5.2. SELECTING THE GENLOCK REFERENCE TYPE
The 7751TG2-HD module can free run on its internal crystal oscillator or can be referenced to a genlock
signal applied to the GENLOCK input. The genlock signal may be a HD tri-level sync, a standard
definition colour black video or 0.3 V bi-level sync. Table 5-2 provides a list of the valid reference signal
types for the HD output video format you have selected (or SD output video format when a 7751TG2-CF-
HD module is used). DIP switch 6 selects if the module will free run or be referenced to the genlock
reference video. The Genlock On Screen menu is used to select the type of genlock reference being
supplied, whether the genlock reference is used to phase the output video or just lock the clock rate. This
menu also sets up the timing of the output signal with respect to the reference input. (Refer to section
5.6.2)
DIP 6 Genlock Reference
Off
The 7751TG2-HD module will free run on its internal crystal
oscillator. The internal oscillator frequency can be adjusted using
the trimpot located near the DIP switch. Refer to Figure 6-1 for the
position of the trimpot.
On The output video will be locked to the genlock reference according
to the settings of the Ref Type and Lock Type menu settings. See
Table 5-2 for reference types supported for each video standard.
Table 5-3: Genlock Reference Switch Settings
5.2.1. Selecting the Genlock Source
The 7751TG2-CF-HD version also supports an external genlock reference when used within an Evertz
7700FR-G frame. To activate this support, locate the red and blue switch on the bottom side of the main
board. It will be marked with an S2 reference designator. Switch the red slider to the position marked
“EXT”. This will activate the circuitry to accept a genlock reference signal from the 7700FR-G frame. The
default setting for this switch is in the INT position.
5.3. SELECTING THE COLOUR SPACE IN 4:4:4 MODE
DIP switch 7 is used to select whether the 7751TG2-HD module will generate a 4:4:4 YCBCRor 4:4:4
GBRA video.
DIP 7 4:4:4 Colour Space
Off The 7751TG2-HD will generate 4:4:4 YCBCR video
On The 7751TG2-HD will generate 4:4:4 GBRA video
Table 5-4: 4:4:4 Colour Space Switch Settings

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5.4. SELECTING THE OUTPUT MODE (4:2:2 OR 4:4:4)
DIP switch 8 is used to select whether the 7751TG2-HD will generate a 4:2:2 or 4:4:4 mode.
DIP 8 Output Mode
Off The 7751TG2-HD will generate 4:2:2 video. The TG/Link A output
will contain the test signal and the BLK/Link B output will contain a
black video signal.
On
The 7751TG2-HD will generate 4:4:4 video. The TG/Link A output
will contain the main channel (YCB(even)CR(even) or GB(even)R(even))
part of the test signal. The BLK/Link B output will contain the Alpha
channel (YCB(odd)CR(odd) or AB(ODD)R(odd)) part of the test signal.
Table 5-5: Output Mode (4:2:2 or 4:4:4) Switch Settings
5.5. SELECTING THE TEST SIGNAL
When the 7751TG2-HD is not in the On Screen setup menu, the toggle switch located on the front edge of
the module is used to select the test signal generated. Each time the toggle switch is pressed down the
7751TG2-HD advances to the next test signal. Each time the toggle switch is depressed the 7751TG2-HD
changes to the previous test signal. The name of the current test signal is shown momentarily on the
lower left corner of the screen. Table 5-6 shows the test signals that are available. Table 5-7 shows the
special test signals that are only available in 4:4:4 GBRA. Most of the test signals are industry standard
signals. Sections 5.5.1 and 5.5.2 describe the test signals that are unique to the 7751TG2-HD.
"Some test signals are not available on certain video formats.

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Test Signal Name Test Signal Name
Y Multipulse (5, 10, 15, 20, 25 MHz) 5 Step Staircase
Component Multipulse (5, 10, 15, 20, 25 MHz) Valid 5 Step
100% Y Multiburst (20, 22, 24, 26, 28, 30 MHz) Valid Ramp
100% Y Multiburst (10, 12, 14, 16, 18, 20 MHz) Clean Aperture with Graticule
100% Y Multiburst (1, 2, 4, 6, 8, 10 MHz) Circle with Centre Cross
60% Y Multiburst (20, 22, 24, 26, 28, 30 MHz) Clean Aperture with Centre
60% Y Multiburst (10, 12, 14, 16, 18, 20 MHz) Clean Aperture
60% Y Multiburst (1, 2, 4, 6, 8, 10 MHz) Production Aperture
100% Component Multiburst (20, 22, 24, 26, 28, 30 MHz) 12% White Window
100% Component Multiburst (10, 12, 14, 16, 18, 20 MHz) 20% White Window
100% Component Multiburst (1, 2, 4, 6, 8, 10 MHz) 50% White Window
60% Component Multiburst (20, 22, 24, 26, 28, 30 MHz) 80% White Window
60% Component Multiburst (10, 12, 14, 16, 18, 20 MHz) 100% White Window
60% Component Multiburst (1, 2, 4, 6, 8, 10 MHz) Full Field Pluge
60% Y Line Sweep (15-30 MHz) with 2 MHz Markers 75% Split Field Reverse Bars With Pluge
60% Y Line Sweep (1-30 MHz) with 5 MHz Markers SMPTE Colour Bars
60% Component Sweep (15-30 MHz) with 2 MHz Markers 75% Colour bars with Pluge
60% Component Sweep (1-30 MHz) with 5 MHz Markers 100% Colour bars with Pluge
Grey 4x3 SMPTE bars
Grey (all data bits active) RP219 Colour bars
SDI Checkfield 75% BARS, 100% WHITE
Bouncing Box 75% Colour bars
24P(sF), 4 frame sequence 100% Colour bars
24P, 4 frame sequence White Field
1 second and 5 second 30 Fps ID Black
5 Frame sequence 480P Black/White Frames
4 Frame sequence 480P White Frame
Field ID 480P Production Aperture
Frame ID 480P SMPTE Colour Bars
Bowtie
Table 5-6: Test Signal Selection

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Test Signal Name Test Signal Name
FS RP219 Colourbars 1 FS 12% White Window
FS Bars with 2 scalings FS 20% White Window
FS 75% Colour bars FS 50% White Window
FS 100% Colour bars FS 80% White Window
FS Y Multipulse FS 100% White Window
FS 60% Y Line Sweep (15-30 MHz) with 2 MHz Markers FS 10 Step B & W Pluge
FS 60% Y Line Sweep to 30 MHz FS 7 Step B & W Pluge
FS Clean Apertue with Graticule FS White
FS Circle with centre cross FS Black
FS Clean Apertue with Graticule
FS Clean Aperture with Centre
Table 5-7: Additional 4:4:4 Full Scale RGB Test Signals
"
On 7751TG2-CF-HD modules, the toggle switch advances through the available test
signals, as well as the bitmaps (or trouble slides) that are on the compact flash for
the selected video format.
There is a 10-15 second delay when loading a new bitmap. This delay is applied
every time a new bitmap is selected.
During the load of a bitmap the red LED, located behind the compact flash reader,
will blink momentarily. This is normal and indicates that the compact flash is being
accessed.
5.5.1. Description of Unique Test Signals
This section describes features of some of the more unique test signals.
5.5.1.1. Clean Aperture with Graticule
This signal contains a number of key physical dimensions of the HDTV active picture area. It divides the
16x9 aspect ratio clean aperture area into an 8x6 graticule grid. The centre 6x6 grid corresponds to a 4x3
aspect ratio rectangle that is concentric with the 16x9 clean aperture. The edges of the 4x3 area have
different line patterns to help in identifying it. The clean aperture markers are placed so that the centre of
the lines is at the clean aperture. The production aperture markers are placed so that the outsides of the
lines are at the production aperture (the extent of the total image). A centre cross marker is also included
to mark the middle of the image.
5.5.1.2. Production Aperture
Single horizontal lines and single pixel vertical borders around the active picture mark the production
aperture. Single pixels and single horizontal lines are not legal for normal pictures but this test signal is
designed to test equipment to make sure it is processing/passing the whole image area. If any side of the
box is missing, then the device under test is not passing the whole production aperture.

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5.5.1.3. Grey Signals
These signals can be used as a 50% full field grey, and they are also designed to provide a best case and
a worse case toggle rate on the test signal data bits. The regular Grey signal has both the luminance and
the chrominance values set to 200hex, while the Grey with all data bits active signal has both the
luminance and the chrominance bits alternating between 200hex and 1FFhex. The latter signal has every
data bit toggling every video sample.
Most current digital logic designs use CMOS technology, where the power consumed and the heat
produced are proportional to the average toggle rate of all of the flip flops in the product. If a product
performs a large amount of video processing (in proportion to all processing), then there will be a power
consumption difference between a “quiet” signal and a “very active” signal. The grey signals can be used
as a best case and a worst case condition for checking such conditions.
5.5.1.4. 4x3 Colour Bars
SMPTE RP219 colour bars have a feature that allows the signal to be down converted to standard
definition and the signal is still usable. A down converter when in “4x3 side crop” mode will pull out the
centre 4x3 picture area of the HD 16x9 image creating a meaningful picture. Also, the signal edge rise and
fall times have been reduced to allow proper frequency scaling when decimating to standard definition
bandwidths. This will reduce the amount of ringing and overshoot on the signal edges. This same concept
has been incorporated in a couple more “4x3” colour bar signals.
5.5.1.5. Long Sequence Signals
Five second long signals have been included to aid in troubleshooting delays through equipment. Because
memory is cheap and processing delays have grown, these signals may help in timing up long video
paths. For instance, apply this signal to two different paths, and then compare the signals at the outputs
with two side-by-side monitors. Even a single frame difference will be observable. The five-second-
sequence signal also has single frame flashes each second.
5.5.1.6. Bouncing Box
A slow moving up and down square box has been included to catch frame grabs and/or repeats. It will also
help show improper field interlace/de-interlace sequencing issues. The motion is frame based not field, so
it should pass through any processing equipment without distortion.
5.5.1.7. Four Frame 24P and 24PsF Signals
The 24 frames per second (fps) digital HD signals are becoming more common in the signal acquisition
and editing environment. Conversion from 24fps to 30fps requires a “3:2 pulldown” where 4 frames of
24fps video are mapped to 5 frames of 30fps video. These signals are designed to allow you to observe
the “pulldown” sequence. In the 24P signals, a sequence of 4 unique frames is generated. After passing
through a device that generates 30fps video, you can observe how each of the 5 output frames is
generated from the 4 input frames. Also, the 24P segmented frame (sF) signals uniquely tag the even and
the odd lines of the frame to make sure that the processing gear is associating the correct two segments
to create one 24P frame.