evertz 7700 Series User manual

7700 MultiFrame Manual
7750TG2-HD HDTV Test Signal Generator
Revision 1.2.3
1. OVERVIEW.......................................................................................................................................... 1
2. INSTALLATION................................................................................................................................... 2
3. SPECIFICATIONS............................................................................................................................... 3
3.1. GEN LOCK INPUT .............................................................................................................................. 3
3.2. HD SERIAL VIDEO OUTPUTS ........................................................................................................... 3
3.3. ELECTRICAL ...................................................................................................................................... 3
3.4. PHYSICAL........................................................................................................................................... 4
4. STATUS LEDS .................................................................................................................................... 4
4.1. MODULE STATUS LEDS ................................................................................................................... 4
4.2. AUDIO GROUP STATUS LEDS ......................................................................................................... 5
5. CARD EDGE CONTROLS .................................................................................................................. 5
5.1. SELECTING THE OUTPUT VIDEO FORMAT.................................................................................... 5
5.2. SELECTING THE GEN LOCK REFERENCE TYPE........................................................................... 7
5.3. SELECTING THE COLOUR SPACE IN 4:4:4 MODE......................................................................... 7
5.4. SELECTING THE OUTPUT MODE (4:2:2 OR 4:4:4) ......................................................................... 7
5.5. SELECTING THE TEST SIGNAL ....................................................................................................... 8
5.5.1. Description Of Unique Test Signals ......................................................................................... 9
5.5.1.1. Clean Aperture with Graticule ................................................................................... 9
5.5.1.2. Production Aperture .................................................................................................. 9
5.5.1.3. The Grey Signals....................................................................................................... 9
5.6. CONFIGURING THE TEST GENERATOR USING THE ON SCREEN MENU................................... 9
5.6.1. Top Level Menu Structure...................................................................................................... 10
5.6.2. Configuring 7750TG2-HD Gen Lock Input ............................................................................. 11
5.6.2.1. Selecting the Gen Lock Input Type ......................................................................... 11
5.6.2.2. Selecting How The Output Will Be Locked To The Gen Lock Input........................ 11
5.6.2.3. Setting the Timing of the Output Video with Respect to the Gen Lock Input .......... 12
5.6.3. Configuring 7750TG2-HD Embedded Audio Parameters ...................................................... 14
5.6.3.1. Audio Group Selection ............................................................................................ 15
5.6.3.2. Audio Channel Selection ......................................................................................... 15

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5.6.4. Configuring the On Screen Message Display ........................................................................ 16
5.6.4.1. Editing the On Screen Message Display................................................................. 16
5.6.4.2. Positioning the On Screen Message Display .......................................................... 16
5.6.4.3. Setting the Display Time for the Signal Name Display............................................ 17
5.6.5. Configuring the Link A and Link B Audio and On Screen Display.......................................... 17
5.6.5.1. Selecting The Which Link Has Embedded Audio.................................................... 17
5.6.5.2. Selecting The Which Link will Show the On Screen Display Items ......................... 17
6. JUMPERS.......................................................................................................................................... 18
6.1. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS................................................................................................. 18
6.2. CONFIGURING THE MODULE FOR FIRMWARE UPGRADES ...................................................... 19
6.3. SELECTING WHETHER THE GENLOCK REFERENCE INPUT IS TERMINATED ........................ 19
Figures
Figure 1: 7750TG2-HD Block Diagram ................................................................................................ 1
Figure 2: 7750TG2-HD Rear Panel ..................................................................................................... 2
Figure 3: Default Tri-Level Gen Lock Reference Timing.................................................................... 12
Figure 4: Default Bi-Level Gen Lock Reference Timing..................................................................... 13
Figure 5: Default Signal Alignment in 59.94 Hz Field Rate Systems ................................................. 13
Figure 6: Default Signal Alignment in 50 Hz Field Rate Systems ...................................................... 14
Figure 7: Location of Jumpers ........................................................................................................... 18
Tables
Table 1: Audio Group Status LEDs...................................................................................................... 5
Table 2: DIP Switch Functions – Overview.......................................................................................... 5
Table 3: Video Format DIP Switch Settings......................................................................................... 6
Table 4: Gen Lock Reference Switch Settings .................................................................................... 7
Table 5: 4:4:4 Colour Space Switch Settings....................................................................................... 7
Table 6: Output Mode (4:2:2 or 4:4:4) Switch Settings ........................................................................ 7
Table 7: Test Signal Selection ............................................................................................................. 8

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Revision 1.2.3
REVISION HISTORY
REVISION DESCRIPTION DATE
0.1 Original Version - preliminary Oct 00
1.0 Added Link Setup Menu items, general cleanup Mar 01
1.1 Added Audio level specification Aug 01
Added info on Free run oscillator trimpot
1.2 Changes to Genlock Operation, Figure 5 and 6 added Feb 02
1.2.1 Changes to Figure 4, page numbers updated Jun 02
1.2.2 Minor Typographical changes and reformatting Dec 02
Test Signal table 5 updated, support for 480P test signals added
1.2.3 Typographical correction to Gen Lock Type menu Oct 03
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 effected 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 express 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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Revision 1.2.3 7750TG2-HD-1
1. OVERVIEW
The 7750TG2-HD Test Signal Generator provides a cost-effective method of generating 1.5 Gb/s HDTV
4:2:2 and 4:4:4 test signals. The 7750TG2-HD is ideal for checking signal path integrity, or to determine
system performance over varying cable lengths. The 7750TG2-HD generates test signals in a wide
variety of SMPTE 292M video formats. In single link mode, the 7750TG2-HD outputs a 4:2:2 black signal
on two outputs and the selected 4:2:2 test signal on the remaining two outputs. In dual link mode, the
7750TG2-HD outputs a 4:4:4 test signal on two dual-link 4:4:4 outputs.
The 7750TG2-HD provides an analog genlock input that allows you to synchronize the test signals to your
plant horizontal and vertical timing.
Separate audio tones can be embedded into each channel of one of the four embedded audio groups. The
user can select which of the audio groups the tones will be embedded into. In dual link mode, the selected
audio groups will be embedded into each link. The Audio level is fixed at -20 dB full scale.
Features:
•Wide variety of 1080i, 1035I, 1080p, 480p and 720p output formats
•8 position DIP switch selects output format, single or dual link and genlock reference
•Card edge toggle switch selects test signal
•Selectable gen lock input format – bi-level or tri-level sync, colour black
•4 embedded audio tones, selectable audio group assignment
•4 output drivers
•On screen display of test signal names
•On screen setup menu
•Tally output upon loss of gen lock
•Front panel LEDs indicate gen lock presence, module fault and audio signal presence on the output
Cable
Driver
Sync
Separator
Gen Lock
Present
Gen Lock
Audio
Present
Cable
Driver
Cable
Driver
Module
Status
Card Edge
Control
Signal
Generator
HD Serial Output
1.5 Gb/s
(SMPTE 292M)
Audio
Embedder
Audio Group
P / S
P / S
Link B
Link A
Figure 1: 7750TG2-HD Block Diagram

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2. INSTALLATION
The 7750TG2-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 the 7700FR chapter section 3.
Figure 2: 7750TG2-HD Rear Panel
GEN LOCK Input BNC connector for analog Gen Lock reference. The genlock signal may be a HD tri-
level sync or a standard definition colour black video or 0.3 V bi-level sync. DIP switch 6
enables the Gen-Lock reference and the Gen Lock 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 3 gives a list of the valid reference signal types for the HD output video format you
have selected. Jumper J2 on the A7700REF sub-module selects whether the reference input
is terminated or high impedance. (See section 6.3)
HD OUTPUT LINK A This pair of BNC connectors has with serial component video outputs compatible
with the SMPTE 292M standard. DIP switches 1 to 5 select the video standard. (See Table 3)
When the 7750TG2-HD is operating the 4:2:2 mode these outputs contain the test signal.
When the 7750TG2-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 test signal.

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HD OUTPUT LINK B This pair of BNC connectors has with serial component video outputs compatible
with the SMPTE 292M standard. DIP switches 1 to 5 select the video standard. (See Table 3)
When the 7750TG2-HD is operating the 4:2:2 mode these outputs contain a black video signal.
When the 7750TG2-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 test signal.
The test signal output is selected using the toggle switch located on the card edge. The Audio
Setup On screen menu is used to configure any embedded audio that will be present on the
outputs.
3. SPECIFICATIONS
3.1. GEN LOCK INPUT
Type: Menu selectable - depends on output video format (see Table 3)
HD Tri-level Sync
NTSC or PAL Colour Black 1 V p-p
Composite Bi-level sync (525i or 625i) 300 mV
Connector: 1 BNC per IEC 169-8
Termination: 75 ohm (jumper selectable)
3.2. HD SERIAL VIDEO OUTPUTS
Standard: SMPTE 292M, 4:2:2 YCBCR, 4:4:4 YCBCRor 4:4:4 GBRA Selectable as per Table 3
Number of Outputs:
Single Link Mode: 2 outputs of Black video
2 outputs of selected test signal
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. Audio Level is set to -20 dB Full Scale.
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 169-8
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
3.3. ELECTRICAL
Voltage: + 12VDC
Power: 6 Watts.
EMI/RFI: Complies with FCC Part 15, class A and EU EMC directive.

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3.4. PHYSICAL
7700 or 7701 frame mounting:
Number of slots: 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)
4. STATUS LEDS
4.1. MODULE STATUS LEDS
The location of the status LEDs is shown in Figure 7.
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. The 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 resync to the
genlock frame reference.
AUDIO: This Green LED will be On when there is audio embedded into the outputs.

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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 center of the
module.
Group LED Color Audio Group Status
1Off There is no group 1 audio on the video output.
Green Group 1 audio is being embedded.
2Off There is no group 2 audio on the video output.
Green Group 2 audio is being embedded.
3Off There is no group 3 audio on the video output.
Green Group 3 audio is being embedded.
4Off There is no group 4 audio on the video output.
Green Group 4 audio is being embedded.
Table 1: Audio Group Status LEDs
5. CARD EDGE CONTROLS
The 7750TG2-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 2 gives an overview
of the DIP switch functions.
DIP Switch Function
1
2
3
4
5
Video Output Format Selection
6 Gen Lock Enable
7 Colour Space Selection
8 Dual Link Mode Enable
Table 2: DIP Switch Functions – Overview
A three position, return to center 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 7750TG2-HD. The On position is
down, or closest to the printed circuit board. Table 3 shows the settings of the DIP switches for 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
12345
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
Table 3: Video Format DIP Switch Settings

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5.2. SELECTING THE GEN LOCK REFERENCE TYPE
The 7750TG2-HD can free run on its internal crystal oscillator or be referenced to a genlock signal applied
to the GEN LOCK input. The genlock signal may be a HD tri-level sync or a standard definition colour
black video or 0.3 V bi-level sync. Table 3 gives a list of the valid reference signal types for the HD output
video format you have selected. DIP switch 6 selects if the 7750TG2-HD will free run or be referenced to
the genlock Reference video. The Gen Lock 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, and to set up the timing of the output signal with respect to the reference input. (See section
5.6.2)
DIP 6 Genlock Reference
Off The 7750TG2-HD will free run on its internal crystal oscillator. The
internal oscillator frequency can be adjusted using the trimpot
located near the DIP switch.
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 3 for reference types supported for each video standard.
Table 4: Gen Lock Reference Switch Settings
5.3. SELECTING THE COLOUR SPACE IN 4:4:4 MODE
DIP switch 7 is used to select whether the 7750TG2-HD generates 4:4:4 YCBCRor 4:4:4 GBRA video.
DIP 7 4:4:4 Colour Space
Off The 7750TG2-HD will generate 4:4:4 YCBCR video
On The 7750TG2-HD will generate 4:4:4 GBRA video
Table 5: 4:4:4 Colour Space Switch Settings
5.4. SELECTING THE OUTPUT MODE (4:2:2 OR 4:4:4)
DIP switch 8 is used to select whether the 7750TG2-HD generates 4:2:2 or 4:4:4 mode.
DIP 8 Output Mode
Off The 7750TG2-HD will generate 4:2:2 video. The Link A output will
contain the test signal and the Link B output will contain a black
video signal.
On The 7750TG2-HD will generate 4:4:4 video. The Link A output will
contain the main channel (YCB(even)CR(even) or GB(even)R(even)) part
of the test signal. The Link B output will contain the Alpha channel
(YCB(odd)CR(odd) or AB(ODD)R(odd)) part of the test signal.
Table 6: Output Mode (4:2:2 or 4:4:4) Switch Settings

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5.5. SELECTING THE TEST SIGNAL
When the 7750TG2-HD is not in the on screen setup menu, the toggle switch located on the front edge of
the module is used to select test signal generated. Each time the toggle switch is pressed down the
7750TG2-HD advances to the next test signal. Each time the toggle switch is pressed up the 7750TG2-
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 7 shows the test signals that are available. Most of the test signals
are industry standard signals. Sections 5.5.1.1 to 5.5.1.3 describe the test signals that are unique to the
7750TG2-HD.
!Some test signals are not available on certain video formats.
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 Center Cross
60% Y Multiburst (20, 22, 24, 26, 28, 30 MHz) Clean Aperture with Center
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) 75% Split field reverse bars with pluge
60% Y Line Sweep (15-30 MHz) with 2 MHz Markers SMPTE Color Bars
60% Y Line Sweep (1-30 MHz) with 5 MHz Markers 75% Color bars with pluge
60% Component Sweep (15-30 MHz) with 2 MHz Markers 100% Color bars with pluge
60% Component Sweep (1-30 MHz) with 5 MHz Markers 75% Color bars
Grey 100% Color bars
Grey (all data bits active) White Field
SDI Checkfield Black
Field ID 480P Black/White Frames
Frame ID 480P White Frame
Bowtie 480P Production Aperture
480P SMPTE Color Bars
Table 7: Test Signal Selection

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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 center 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 center 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 center 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.
5.5.1.3. The 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), and 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.
5.6. CONFIGURING THE TEST GENERATOR USING THE ON SCREEN MENU
An On screen menu (OSD) is used to configure many of the test generator’s parameters. The three
position, return to center, toggle switch and momentary pushbutton located on the front edge of the
module are used to navigate the OSD setup menus and configure the cards various controls.
To enter the OSD menu system, press the push button once. This will bring you to the main setup menu
where you can use the toggle switch to move up and down the list of available sub menus. An arrow (>)
moves up and down the left hand side of the menu items to indicate which item you are currently
choosing. Once the arrow is on the desired item, press the pushbutton to select the next menu.
On all menus, there is a selectable item Done. Selecting Done will take you to the previous menu (the one
that was used to get into the menu). If you are at the top level of the menu tree then selecting Done will
exit the OSD menu and return the 7750TG2-HD to the normal operating mode.

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Once you are in a sub menu, there may be another menu level, or there may be a list of parameters to
adjust. If there is another set of menu choices, use the toggle switch to select the next choice with the
same procedure as in the main menu.
If there is a list of parameters to adjust, use the toggle switch to move up or down to the desired
parameter and press the pushbutton. The arrow will move to the right hand side (<) indicating that you
can now adjust the parameter. Using the toggle switch, adjust the parameter to its desired value. If the
parameter is a numerical value, the number will increase if you lift the toggle switch and decrease if you
push down on the toggle switch. If the parameter contains a list of choices, you can cycle through the list
by pressing the toggle switch in either direction.
When you have stopped at the desired value, depress the pushbutton. This will update the parameter
with the selected value and move the arrow back to the left side of the parameter list. Continue selecting
and adjusting other parameters or use the Done commands to return to the next higher menu level.
5.6.1. Top Level Menu Structure
The following is a brief description of the top level of the menu tree that appears when you enter the On
screen menu. Selecting one of these items will take you down into the next menu level.
Gen Lock Setup Configure the Gen Lock type and the timing phase of the test signal to the
Gen Lock reference input.
Audio Setup Configure what audio tones will be embedded into the test signal, and which
audio group will be used.
OSD Configure the On screen message.
Link Setup Configure whether audio tones and On Screen Display messages will be
inserted on Link A, Link B or Both.
Done Exit On Screen Menu System

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5.6.2. Configuring 7750TG2-HD Gen Lock Input
The Gen Lock Setup menu is used to select the Gen Lock type, to adjust the phase of the output video
(with respect to the Gen Lock Input) and whether the output will be phase locked or clock locked to the
Gen Lock input.
Ref Type Selects whether the Gen Lock reference is bi-level or tri-level.
Lock Type Selects whether the output will be clock or phase locked to the Gen Lock
reference.
V Phase Adjust the Vertical timing of the output
H Phase Adjusts the horizontal timing of the output
Done Return to main menu
5.6.2.1. Selecting the Gen Lock Input Type
The Ref Type parameter selects whether the 7750TG2-HD will accept a Bi-level or tri-level signal as the
Gen Lock reference input.
GEN LOCK SETUP
REF TYPE
Bi-Level Gen Lock Reference is a NTSC or PAL standard definition colour black
video or a 0.3 V bi-level sync.
Tri-Level Gen Lock Reference is a high definition tri-level sync.
5.6.2.2. Selecting How The Output Will Be Locked To The Gen Lock Input
The Lock Type parameter selects whether the 7750TG2-HD will be Phase or Clock locked to the Gen
Lock Input. Normally it is desirable to phase lock the output signal to a house reference. This is only
possible when the frame rate of the output matches the house frame rate. In situations when you need to
provide an NTSC or 59.94 Tri-level sync reference, but you want to generate a 60.00 fps output (or
another integer frame rate with a 1/1.001 frame rate gen-lock) select the clock lock mode. In this mode
only the clock rate (and not the frame rate) of the output will be locked to the input.
GEN LOCK SETUP
LOCK TYPE
Phase The output video is phase locked to the genlock reference
Clock The output video is clock locked to the genlock reference

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5.6.2.3. Setting the Timing of the Output Video with Respect to the Gen Lock Input
The V Phase and H Phase parameters allow you to control the timing of the output video with respect to
the beginning of the frame on the Gen Lock reference input. Phasing of the output is only possible when
the Lock Type parameter is set to Phase and the frame rate of the gen lock reference is the same as the
frame rate of the output video format. An internally generated digital video sync structure, locked to the
analog genlock reference signal (0Htime of line 1 field 1 for PAL or HD Tri-level references or 0Htime of
line 4 field 1 for NTSC references) is used to genlock the 7750TG2-HD test generator. The EAV of line 1
of this digital reference sync is the point to which all the reference phasing adjustments are made. The
default timing relationship of the analog tri-level and bi-level inputs to the digital reference sync frame
(when the V Phase and H Phase parameters are set to zero) are set according to SMPTE Recommended
Practice RP168-2002 and are shown in Figure 3 and Figure 4.
The V parameter provides a coarse adjustment of timing and sets the delay in lines of line 1 of the test
signal frame with respect to the beginning of the genlock reference frame. The H parameter provides a
fine adjust of timing and sets the delay in pixels of the 0Htime of line 1 of the test signal frame with respect
to the 0Htime of the beginning of the reference frame. If adjustments to the H parameter cause it roll
through the pixel number at the start of a new line then the V parameter will change to the next higher or
lower line.
The factory default is to align the 0Htime of Line 1 of the output video with the beginning of the genlock
reference frame (0Htime of line 1 field 1 for PAL or HD Tri-level references or 0Htime of line 4 field 1 for
NTSC references) according to SMPTE Recommended Practice RP168-2002. For example, in 59.94Hz
frame rate systems, the horizontal reference points of Line 1 of 1125 line, Line 1 of 750 line and Line 4 of
525 line signals shall be coincident (see Figure 5). In 50Hz frame rate systems, the horizontal reference
points of Line 1 of 1125 line, Line 1 of 750 line and Line 1 of 625 line signals shall be coincident (see
Figure 6).
Analog
Tri-Level
Sync
EAV H BLANKING
Line 1
0
H
SAV
Pixel 0
VIDEO DATA EAV
Start of Frame of
Genlock Reference
Digital
Timing Reference
Sync
Figure 3: Default Tri-Level Gen Lock Reference Timing

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EAV H BLANKING SAV
Pixel 0
VIDEO DATA EAV
Start of Frame of
Genlock Reference
Digital
Timing Reference
Sync
Analog
Bi-Level
Sync
Line 4 (NTSC)
Line 1 (PAL)
0
H
Figure 4: Default Bi-Level Gen Lock Reference Timing
1125 1 2 3112411231122 4 5
1125/59.94/I Video signal
6 7
525/59.94/I Video signal
750/59.94/P Video signal
12345678750749748747746745
45632
Figure 5: Default Signal Alignment in 59.94 Hz Field Rate Systems

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1125 1 2 3112411231122 4 5
1125/50/I Video signal
6 7
750/50/P Video signal
12345678750749748747746745
625/50/I Video signal
1234625624
Figure 6: Default Signal Alignment in 50 Hz Field Rate Systems
5.6.3. Configuring 7750TG2-HD Embedded Audio Parameters
The Audio Setup menu is used to select the audio group where embedded audio will be placed, and the
frequency of the tones that will be put into each of the 4 embedded audio channels.
Group: Selects the Audio Group where embedded audio will be placed.
Ch. 1: Selects the audio signal for Audio Channel 1.
Ch. 2: Selects the audio signal for Audio Channel 2.
Ch. 3: Selects the audio signal for Audio Channel 3.
Ch. 4: Selects the audio signal for Audio Channel 4.
Done Return to main menu

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5.6.3.1. Audio Group Selection
The Group parameter selects the Audio Group where embedded audio will be placed.
AUDIO
GROUP:
Off No audio will be embedded in the video output.
1, 2, 3, 4 Up to 4 groups of audio may be embedded in the output video. Audio will
be embedded into the selected group. There are four green LED's under
the DIP switches that indicate which of the four groups audio is being
embedded into.
5.6.3.2. Audio Channel Selection
Each Audio Group has four audio channels. The Ch 1, Ch 2, Ch 3, and Ch 4 parameters select the Audio
signal that will be embedded into each of the 4 channels of the audio group selected by the Audio Group
parameter.
AUDIO
Ch 1
Mute Embedded audio in this channel will be silent.
60 Hz
100 Hz
200 Hz
400 Hz
800 Hz
1.0 kHz
1.6 kHz
2.0 kHz
3.2 kHz
4.0 kHz
5.0 kHz
6.4 kHz
8.0 kHz
10 kHz
Selecting one of these signals will set the frequency of the tone that is
embedded into this channel.

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5.6.4. Configuring the On Screen Message Display
The 7750TG2-HD has a programmable 16-character text message that may be used to display a source
identification message or any other information on the screen. The On Screen Display menu is used to
enter the text message, to turn it on and off and set the position on the screen. The On Screen Display
menu is also used to set the length of time that signal name display is on after the user changes the test
signal.
Message Display Turns the message display on and off.
Message Edit the On screen message.
Set Message Position Sets horizontal and vertical position of the message on the screen.
Signal Name Duration Set the duration that the signal name display is on after test signal changes.
Done Exit On Screen Menu System
5.6.4.1. Editing the On Screen Message Display
The Message submenu is used to edit the text message. When you enter the message submenu, the
actual text message is displayed on the top line.
TEXT MESSAGE Edit the message.
Clear Clears the complete message to space characters
Justify Used to move the message within the 16 char text message block
Done Exit On Screen Display Menu System
To edit the message, press the pushbutton when the > indicator is on the left of the message. The ^
indicator will appear under the left character of the message. Use the toggle switch to change the
character indicated by the ^ or press the pushbutton to advance to the next character. When you have
finished editing the message the > will automatically appear to the left of the message. Use the toggle
switch to select the Clear, Justify or Done menu items and press the pushbutton to exit the Message
submenu.
5.6.4.2. Positioning the On Screen Message Display
The Position Message submenu is used to position the text message on the character raster. When you
enter the Position Message submenu, a box the size of the maximum length message will appear on the
screen. Use the toggle switch to move the box horizontally. When you press the pushbutton you will be
able to move the box vertically on the screen using the toggle switch. Press the pushbutton quickly twice
to exit the Position Message submenu.