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1 Overview of the 780/780AH Handheld Test Instrument
This section provides an overview of the 780/780AH Handheld Test Instrument. There are two models
available:
780 Provides HDMI Tx port and HDMI Rx port operating up to 165MHz pixel rate and 225MHz TMDS rate
for 12 bit deep color at 1080p.
780AH provides HDMI Tx port and an HDMI Rx port operating up to 300MHz pixel and TMDS rates for
testing devices which support 4K resolutions.
All models have analog outputs as well.
The 780AH supports HDCP 2.2 authentication and encryption testing of HDMI 2.0 sources and sinks that
support HDCP 2.2.
1.1 Scope of this User Guide
This User Guide documents the complete operation of the 780 Handheld Test Instrument for HDMI.
Note: Please be sure to check the quantumdata website for updates to this User Guide.
1.2 Changes to this User Guide
This User Guide has been updated to include information on the Report File Creation feature.
Note: Not all screen examples have been updated to include the Reports Menu selection item on the
top menu bar.
DID NOT DO ANYTHING OTHER THAN THIS NEED
TO GET SCREENS
1.3Introducing the 780/780AH Handheld Test Instrument
The 780/780AH Handheld Test Instrument is a battery-powered, portable multimedia pattern generator that
enables you to conduct quick, on-site verification testing of your HDMI system and analog video displays. The
780/780AH is equipped with both a reference source and a reference sink HDMI interface allowing you to test
audio, video and protocols—HDCP, EDID, CEC & infoframes—of any type of HDMI device: sources, repeaters
and sinks. Its portability makes it ideal for your bench and for use in the field. Because the 780/780AH has both
an HDMI output and an HDMI input, you can test your HDMI cables and systems with splitters, extenders and
switches as well with the optional pixel error test feature.
A color touch display makes the 780/780AH easy and convenient to use. When testing an HDMI source device
you can toggle between operating the unit through the touch screen and viewing the incoming video from the
HDMI source.
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Note: 780/780AH Image above is shown with optional hardware board for passive HDMI monitoring between
an HDMI source and sink device.
Note: 780AH Image above shows the front edge with the headphone jack and RS-232 connector for command
line control.
1.4 Overview of 780/780AH features
The 780/780AH Handheld Test Instrument for HDMI provides a rich set of features. The following is a list of
available options and the key features and benefits of each:
1.4.1 Standard features
The following features are standard with the 780/780AH:
Pattern testing for HDTVs - Enables you to conduct pattern testing for an HDTV through the HDMI and
analog component outputs. Provides dozens of patterns with variation options on most.
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Custom bitmaps and pattern scrolling – The 780/780AH enables you to import bitmaps for use in pattern
testing. You can initiate a scroll of these bitmaps with user control over the rate and extent of horizontal
movement.
Create custom formats using the standalone Format Editor.
3D bitmap pattern testing – The 780/780AH enables you to import 3D bitmaps for use in pattern testing.
You can create your own bitmaps from any stereoscopic images you have using the Quantum Data Bitmap
Conversion Tool available from the Quantum Data website:
There are some sample 3D bitmaps on this
webpage as well.
Video confidence test of an HDMI source device – The 780/780AH enables you to view the incoming video
on the 780/780AH’s LCD screen. 780AH enables the incoming image to be routed out the HDMI output
connector if unused. 780AH also enables scrolling to view an entire unscaled 4K image received on the
HDMI input port.
Audio confidence test of an HDMI source device – The 780AH enables you to listen to the incoming LPCM
audio through the 780AH’s headphone jack on the front edge or through an embedded speaker. There will
be no sound when compressed audio is received on the incoming HDMI stream.
Audio Return Channel confidence test of an HDMI 1.4 A/V receiver – The 780AH can emulate an ARC Tx
device on its HDMI IN port. Note: The 780AH does not support enabling ARC on the AV receiver, therefore
you will have to enable ARC through some other means.
Audio testing for AVRs and HDTVs – The 780/780AH provides multi-channel digital audio test patterns
through the HDMI, SPDIF and optical outputs. A variety of audio patterns and formats are provided at
sampling rates from 32kHz up to 192kHz and bit depths of 16, 20 and 24. Format supported are Dolby
Digital and DTS compressed formats and lossless compressed or high bit rate HDMI formats.
Installer Utility – Provides simplified diagnostics of HDMI interoperability problems in an HDMI installation.
The Installer utility enables installers to connect the 780/780AH into an HDMI network and quickly conduct
diagnostics without required detailed knowledge of HDMI protocols.
Command line interface for automated testing.
1.4.2 Network Analyzer features
The following features are available with the Network Analyzer option:
HDCP test of an HDMI sink or input to a repeater device – The 780/780AH enables you to run an HDCP
functional test on an HDMI sink device directly or through a repeater device.
EDID test of an HDMI HDTV or input to a repeater device – The 780/780AH enables you to run an EDID
functional test on an HDMI sink device directly or through a repeater device. You can view the entire EDID
in human readable text. You can also run a portion of EDID compliance test.
Video test of an HDMI source device – The 780/780AH provides an HDMI input for testing HDMI source
devices. You can run a verification test of a video source which includes timing and format information and
an indication of whether the video is HDCP content protected.
Data Island test of an HDMI source device – The 780/780AH provides an HDMI input for testing HDMI
source devices. You can view the infoframes and other data islands.
Audio test of an HDMI source device – The 780/780AH provides an HDMI input for testing HDMI source
devices. You can run a verification test of an audio source which includes decoding of the audio IEC
headers, audio infoframes and audio sample packet headers including parsing out of the channel status
bits.
EDID test of an HDMI source device – The 780/780AH’s HDMI input can be provisioned with any EDID you
have access to. You can verify that a source device responds properly to the provisioned EDID. The EDID
could be a known-good EDID or an EDID that you have created specifically for testing.
HDCP test of an HDMI source device – The 780/780AH enables you to run a test to determine how many
HDCP devices an HDMI source can support during HDCP authentication.
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Table 1-1: 780/780AH Shipping Box Contents
Item Description
Part No.
780/780AH Handheld Test Instrument for HDMI.
00-00226
12V DC (1.5 amp) Power Supply / Adapter / Charger.
25-00094
Line cord for 12V Power Supply.
30A00400A03
HDMI-to-HDMI Type A cable.
30-00146
Three (3) foot VGA to (3) RCA adaptor cable.
99-00503
Six (6) foot USB cable.
30-00163
Quick Start Guide.
68-00217
CEC ping test of any HDMI device – The 780/780AH enables you to run a CEC ping test on an HDMI
device.
1.4.3 HDMI Cable and Repeater test features
The following features are available with the Cable and Repeater test option:
HDMI Cable & Repeater test – Because the 780/780AH has both an HDMI input and an HDMI output, you
can loop a cable or entire HDMI distribution networks comprised of splitters, extenders, repeaters,
switches, etc. from the 780/780AH’s output to input and run a pseudo-random noise pattern test to
determine pixel errors on the TMDS lines. The feature also runs a continuity test on the DDC test pair, CEC
bus, the +5V line and the hot plug lead. The Repeater test also shows you the hot plug delay between the
downstream side and the upstream side and the pulse width. The Cable & Repeater Test enable you to
test a cable, repeater or distribution network if the source and sink ends are collocated. If the source and
sink ends are not collocated then you need to use the Frame Compare test described below.
HDMI Frame Compare test – Because the 780/780AH has an HDMI input, you can emulate a sink and test
a distribution network at the sink end. The feature works by capturing a frame of video from the source and
then comparing that frame, pixel-by-pixel, to subsequent frames. Errors are shown along with the number
of frames tested which 10 frames.
1.4.4 Auxiliary Channel Analyzer for DDC monitoring features
The following features are available with the Auxiliary Channel Analyzer test options:
DDC monitoring with Auxiliary Channel Analyzer (ACA) – The 780/780AH ACA enables you to monitor
CEC DDC transactions such as HDCP and EDID as well as hot plug related events while emulating an
HDMI source and/or an HDMI sink device(s) in an HDMI system.
DDC passive monitoring with Auxiliary Channel Analyzer (ACA) – The 780/780AH ACA enables you to
monitor CEC and DDC transactions throughout an HDMI systems comprised of a source, repeater and
sink. You can monitor +5V, hot plug events as well as the HDCP and EDID transactions.
1.4.5 What is in the 780/780AH shipping box
The 780/780AH instrument shipping container includes the items listed in Table 1-1 below:
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Table 2-1: 780/780AH Video Interfaces
Video Interface
Description
HDMI (1) Output Type A
Single link HDMI output connector. Supports HDMI 1.3:
Bit Depth: 24/30/36 bit.
Colorimetry: RGB, YCbCr.
Sampling: 4:4:4 and 4:2:2 (4:2:0 780AH for 4K at 60Hz formats).
Pixel rate: Timings up to 1080p60. 780AH Timings up to 4K x 2K.
DVI support through HDMI to DVI adapter cable (RGB, 4:4:4, 24 bit).
Audio: LPCM, Dolby Digital and DTS (more details below).
Analog Output – Component and VGA (HD15F)
Bit Depth: 24 bit color depth.
Colorimetry: RGB, YPbPr.
Pixel rate: 80MHz.
Sync types: separate and composite.
HDMI (1) Input Type A
Single link HDMI input connector. Supports HDMI 1.3:
Colorimetry: RGB, YCbCr.
Sampling: 4:4:4 and 4:2:2 (4:2:0 780AH for 4K at 60Hz formats)..
Pixel rate: 780 - Timings up to 1080p60. 780AH Timings up to 4K x 2K
2 Physical Interfaces of the 780/780AH Handheld Test Instrument for
HDMI
This section describes the administration, video and audio interfaces on the 780/780AH test instrument:
2.1 Video Interfaces
Table 2-1 below describes the video interfaces on the 780/780AH test instrument, these interfaces are used to
render test patterns for testing consumer electronic HDTVs and computer displays.
Table 2-2 below describes the audio interfaces supported on the 780/780AH test instrument.
2.3 Administrative Interface
The 780/780AH test instrument is equipped with a USB interface. This interface is used to download custom
bitmaps and to upgrade firmware and issue commands. The USB interface is a peripheral device. There are
two modes:
COM - Command Mode. Used for sending basic commands to set the interface, select formats and
patterns.
Disk - Mass Storage Mode. Used for downloading bitmaps, audio clips and upgrading firmware or
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3 General Operation
This section describes power up, power usage and general operation.
3.1 Power Considerations
The 780/780AH has a rocker style power switch on the back panel. Refer to the photo below.
The 780/780AH is a portable battery powered test instrument. It is equipped with nickel metal hydride batteries.
It requires an overnight charge. Quantum Data recommends that you set the screen brightness to the minimum
level required. Turn the unit off if you are not going to be using it for extended periods.
The 780/780AH is supplied with the Part No 25-00094 12V DC power supply and charger as well as a part
number 30A00400A03 line cord. We recommend that you use the 780/780AH with the charger and only
use the batteries when fully charged for a short period of time—an hour or two—when power is not
available.
Important Notes about power usage and status:
Monitor the battery meter on the lower right.
The screen will automatically dim after 2 minutes of inactivity to save on battery life.
The 780/780AH will begin to chirp when it requires recharge. Turn the unit off or plug it in to the wall
charger when you hear the chirp.
A green indication or partial green indication shows the battery is being charged.
A gold color indicates that the device is being powered through the wall charger.
Fully charge the 780/780AH overnight.
You must touch an active portion of the LCD to update the battery indicator to show its power status.
Do not continue using the 780/780AH from battery power when the battery meter indicates that the
batteries are exhausted. When you see a thin green line at the right most portion of the battery icon,
turn the power off and switch to line power using the AC Charger adapter; then reapply power.
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3.2 Tilt Bail
The 780/780AH has support bail for convenience in viewing. This is depicted in the illustration below.
3.3 Navigating through the 780/780AH User Interface
The 780/780AH user interface is a color touch screen display 480 by 272. A single touch will activate an item
on the screen or take you down to a lower level menu. A + indicates that you have to double touch to navigate
down to a lower level menu.
Note: The top level menu will appear differently depending on what options have been purchased.
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RS-232 Keypad Mode
Off – Keypad connected to RS-232 is
disabled.
On – Keypad connected to RS-232 is
enabled.
Help
Upgrades
USB Storage Flash
Application Flash
FPGA Flash
Touchscreen
Calibrate the touch screen display
Function Buttons
Video Pattern
See below: Rendering Test Patterns on an HDTV
Audio Test Tone
See below: Testing Digital Audio of an HDMI Sink Device
Test Sink (Display/TV)
(with Network Analyzer
option)
See below: Using the 780/780AH Test Instrument to Test HDMI Sink
Devices
Test Source (DVD/STB)
(with Network Analyzer
option)
See below: Using the 780/780AH Test Instrument to Test HDMI Source
Devices
3D Output
See below: Rendering 3D Test Patterns on an HDTV
Auxiliary Channel
Analyzer
See below:
Procedures for Monitoring Auxiliary Channel events and transactions
Cable/Repeater Test
See below:
Using the 780/780AH Test Instrument to Test HDMI Cable or Repeaters
Installer Tests
See below:
Procedures for Installer Utility
Bottom Status Buttons
Signal Type
See below: Using the 780/780AH Test Instrument Installer Utility
HRes Vres, FrameRate
See below: Selecting a Signal Type and Resolution
Video Pattern
See below: Rendering Test Patterns on an HDTV
Battery Icon
See: Power Considerations
3.4 Back Navigation
When you navigate away from the Home screen a white arrow will appear in the upper left next to the name of
the of the screen you are on. You can navigate to the previous screen by touch selecting this arrow. In the
example below, touch selecting the upper left area on or near the white, left facing arrow next to Signal Type
will take you to the previous screen.
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3.5 Calibrating the LCD
You can calibrate the touch screen of your 780 if necessary.
Important Note: Please follow the procedures below carefully. Improper calibration can lock the unit up. It is
preferable that you contact Quantum Data Support unless you have learned how calibrated the screen
properly.
Use the following procedures to perform the calibration.
1. From the Home menu, navigate to the Help menu by pressing the Help activation button on the upper
status bar. The Home menu is shown below.
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4 Using the 780/780AH Test Instrument to Video and Audio Pattern
Tests on Sink Devices
This chapter provides procedures for running audio and video pattern tests on high definition sink devices such
as HDTVs and projectors. The features and functions described in this chapter are provided with the standard
780/780AH; no options are required. The following signal types are supported.
HDMI (via the HDMI physical connector)
DVI (via the HDMI physical connector)
YPbPr Component analog (via the HD VGA connector)
RGB Analog (via the HD VGA connector).
4.1 Making Physical Connections
The first step in testing a sink device is to make the physical connections between the 780/780AH and the
device(s) under test.
4.1.1 Connecting the 780/780AH to the Display Device
Use the following procedures to make the physical connections from the 780/780AH to the display device under
test.
1. Make the cable connection between the appropriate the 780/780AH video output connector (e.g. HDMI OUT or ANALOG) connector and the input connector of the HDTV using the cables supplied.
2. Alternatively you may connect from the 780/780AH video output connector to an HDTV through an HDMI
repeater device such as an A/V receiver. In this case make the HDMI connection between the HDMI OUT
connector on the 780/780AH and the HDMI input of the HDMI repeater device using an HDMI-to-HDMI
cable. Then connect the HDTV to an active output on the repeater. The following illustrations depict the
typical test configurations.
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4.2 Selecting a Signal Type and Resolution
After making the physical connections between the 780/780AH and the display device under test you will need
to select the signal type, Resolution and Frame Rate for the sink device under test.
4.2.1 Procedures for Selecting a Signal Type
The procedures below describe how to select the active signal type.
1. Power up the 780/780AH using the rocker switch on the back panel. Review the guidelines for battery
usage at: Power Considerations.
2. Touch select the Signal Type activation button on the panel on the left (see screen example below).
3. Touch select the desired signal type using the associated activation button.
4. Touch select the options for the Signal Type. Use the information in Table 4-1 below as a guide:
4.2.2 Procedures for Selecting an HDMI Resolution and Frame Rate
The procedures below describe how to select the resolution in HDMI.
Note: You can create your own custom formats using the Quantum Data Format Editor. These procedures are
described in Creating and Using Custom Formats, EDIDs and Bitmaps.
When you make a physical connection to an HDMI HDTV, a hot plug event will occur. There are two modes the
780/780AH can be set in when testing HDMI sink devices that determine how the 780/780AH responds to this
hot plug event: 1) Hot plug formats On; 2) Hot plug formats Off.
When hot plug formats are On and a hot plug event occurs, the 780/780AH will read the EDID of the display
device connected to its output port. It will then automatically configure the list available signal types (resolutions
and frame rates) to only those supported by the HDMI sink device. The 780/780AH will also be configured to
output the signal indicated in the EDID as the “preferred” timing. The preferred timing is highlighted in green
following a hot plug event.
When hot plug formats are Off, the 780/780AH will display all viable HDMI formats for the HDMI interface
whether they are supported by the display or not.
1. Select the Preferences from the 780/780AH top level menu. Navigate to the second page by touch
selecting the More… key.
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2. Select the Hot Plug Formats mode to On or Off as desired. Refer to the screen above.
3. Touch select the interface button (left button on the bottom panel). Refer to the figure below.
For the HDMI interface, you will set the Color Space, sampling mode, Bit Depth and Format Type.
4. Touch select the resolution and frame rate (middle button on the bottom panel). Refer to the figures below
(note that the second figure below shows the 780AH screen which includes the 4K formats).
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For the HDMI formats, there are color codes that are applied to the Resolution and Frame Rate selections. The
following is a summary of their meaning:
A Resolution or Frame Rate with white lettering but with no outline – a Resolution or Frame Rate that
appears in the EDID and has a short video descriptor associated with it.
A Frame Rate with green lettering and with white outline – The Frame Rate that is currently selected.
A Frame Rate with red lettering but with no outline – The Frame Rate is not supported by the EDID for
that Resolution.
A Frame Rate(s) with green lettering and with white outline – The Frame Rate along with the currently
selected Resolution that is the “preferred” timing.
A Frame Rate with black lettering but with no outline – The Frame Rate is not supported by the standard
for the selected resolution.
Note: When you make a physical connection to an HDMI HDTV, a hot plug event will occur. If Hot Plug
Formats is enabled on the Preference menu, when the hot plug event occurs, the 780/780AH will read the
EDID of the display device connected to its output port. The output is automatically set to the preferred
timing which is highlighted in green following a hot plug.
4.2.3 Procedures for Enabling AVMute
The procedures below describe how to enable AVMute. AVMute is an optional feature in HDMI that enables a
source to signal a sink to extinguish its audio and video. The source, in this case the 780/780AH emulating a
source sets the AVMute Set flag in the general control packet. The purpose of AVMute is to avoid audio
artifacts when switching resolutions.
1. Select the Preferences from the 780/780AH top level menu. Navigate to the second page by touch
selecting the More… key.
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2. Touch select the On activation button next to AVMute on the screen below.
4.3 Rendering Test Patterns on an HDTV
This subsection describes how to render test patterns on an HDTV. You will first have to complete the previous
procedures:
Making the physical connections
Selecting the Signal Type and Resolution
4.3.1 Procedures for Rendering Test Patterns on an HDTV
The procedures below cover cases where there is a direct connection between the 780/780AH and the HDTV
and also where the 780/780AH is connected to an HDTV through a repeater device.
1. From the Home screen on the 780/780AH display, touch select Video Pattern as shown below.
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Table 4-3: Test Patterns
Pattern Name
Variant
Options
Range of Values
ColorBar patterns
Applications:
SMPTEBars - To adjust color
and hue.
Colorbars - To test a display’s
SMPTE
Orientation - Vertical
Direction:
Left to Right
Right to Left
Orientation - Horizontal
Direction:
Top / Bottom
Bottom / Top
2. Touch select the desired test pattern from the menu shown below. You can select patterns that are
standard with the 780/780AH or bitmaps that you have imported.
Note: A “+” on the lower right portion of the pattern indicates that there are options related to the specific
pattern. In these cases you double touch select to access the lower level menu.
3. (If applicable) Specify the test pattern options. Use the information in Table 4-3 below as a guide.
Note: There may be additional patterns not shown in the table.
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Table 4-3: Test Patterns
Pattern Name
Variant
Options
Range of Values
ability to product fully saturated
primary and secondary color.
Pixel values in RGB, 8bit
with TV (limited range)
mode.
Note 1: Deep color values
for 10-bit or 12-bit are
different from those
shown.
Note 2: When using PC
Format type the range will
go from 0 to 255 for 8-bit
color mode.
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Table 4-3: Test Patterns
Pattern Name
Variant
Options
Range of Values
Application: This is a 3D
pattern used to test 3D
displays. The pattern enables
you to set the offset between
the left and right image
components.
Box 2 Offset
-64 to +64
Background Brightness
0 to 63
3D Color Ramp
Application: This is a 3D
pattern used to test 3D color
uniformity and crosstalk or
extinction ratio.
No variants
Description: There are 4 pairs of horizontal color bars. Each bar
depicts a color gradation from red to purple; two from left to right
and one from right to left.
Method – Color uniformity:
1. Close left eye to view image from right eye.
2. Assess the color gradation on each bar.
3. Close right eye to view image from left eye.
4. Subjectively compare the images to assess color
uniformity.
Method – Crosstalk (extinction ratio):
1. Close left eye to view image from right eye.
2. Verify that the bottom bar is extinguished. The extent to
which the bar is not extinguished represents the amount
of crosstalk.
3. Repeat for a test of the left eye
3D Cross Talk
Application: This is a 3D
pattern used to measure the
crosstalk (extinction ratio) for
frame packing, top and bottom
and side by side 3D format
structures.
No variants
Description: This image is divided in two sections with four rows of
16 white boxes each. The top section is for testing with the left eye
open. The bottom section is for testing with the right eye open.
The background area surrounding the boxes is a series of
grayscale ramps. The ramps begin at 100 IRE and transitions to
50 IRE at the left end of the fourth row of each series.
Method – Calculating percent crosstalk:
1. Close right eye to test the left eye using the top section.
2. Check the visibility of the boxes. Any deviation from
black indicates crosstalk.
3. Assess where the box and its background blend such
that they are not distinguishable.
4. Calculate the degree of crosstalk as a percent by
counting the number of boxes (from the beginning of the
series to the box identified in step 3) and divide that by
127. Example if the 20th box blends with its background,
the crosstalk would be 20/127 * 100 = 15.7%
5. Repeat with the left eye closed to test the right eye.
PGCWRGB Pattern
Application: This is a scrolling
pattern used to test for noise
Application: To check the
regulation of CRT video drive
power supply circuits.
No Variants
Rows
2
3
4
5
6
2
3
4
5
6
Zone Plate Pattern
This is a bitmap that can be
scrolled to test motion artifacts.
You can replace particular
bitmap with any other bitmap
image to allow scrolling. You
just need to ensure that you
assign it the same name.
Vertical
Stop
Slow
Medium
Fast
Horizontal Movement
Stop
Slow
Medium
Fast
4.4 Using Custom Test Image Packs
The 780/780AH provides licensed image packs for certain sets of test images. You need to have a license key
to use these custom test image packs. You can arrange to get access to them by contacting Quantum Data
customer suppor
When you purchase an image pack it appears as an icon at the end of the list of Test Patterns. A sample
screen is shown below (Philips1, ChinaRes, Master). You simply select one of the test patterns (e.g. ChinaRes
in the screen example below). They will take a few seconds to load. They will load at the resolution of the
format that you have selected.
www.GlobalTestSupply.com
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Refer to the tables below for a description and depiction of the Image Packs currently offered.
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Table 4-4: Custom Test Image Packs – ChinaRes Pattern
ChinaRes Pattern Pack
This is a bitmap that is available through the
Image Packs option. The ChinaRes test pattern is
specified by the National Testing and Inspection
Center for Radio and TV Products of China.
The image pack includes both a standard
definition aspect ratio (shown right) and a high
definition aspect ratio. This test pattern is
supported at: 1920x1080, 1280x720, 720x576
and 720x480 resolutions.
The following is a description of the elements in
this test image
1. Overscan gauges to determine percentage of
overscan.
2. Centered cross, centered circles, and centered
grid to test centering and concentricity.
3. White grid to test convergence.
4. Central resolution wedge gauges for vertical,
horizontal, and diagonal resolutions.
5. Corner resolution wedge gauges for vertical and
horizontal resolutions.
6. 4-quadrant horizontal and vertical test areas to
judge resolution and display artifacts.
7. Color bar for testing color purity and chroma
delay.
8. 10-step grayscale to test brightness, contrast, and
luminance.
9. Split (left and right) grayscales for testing dark-
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Table 4-5: Custom Test Image Packs – THX Test Patterns
THX Test Patterns
The THX Pattern Pack offers a variety of test
patterns for calibrating the luminance and
chrominance of high end 3D-capable HDTVs. The
following is a list of test patterns provided in this
optional test pattern package.
1. Uniformity - 2D/3D circle patterns to determine
luminance and chrominance screen uniformity.
3D Convergence - test patterns to align pixels for proper convergence.
3D Crosstalk – test patterns to determine level of 3D crosstalk.
Color Gamut – 2D/3D primary and secondary color patterns to fine-tune colors and
gamma.
Picture performance – pattern within THX Optimizer to verify accuracy of skin tones.
THX Optimizer - test patterns to easily adjust brightness, contrast, color, tint, etc.
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Table 4-6: Custom Test Image Packs – ISF® Test Patterns
ISF Test Patterns
The ISF Pattern Pack offers patterns for verifying
white and black levels as well as geometry and
resolution for calibrating high end HDTVs
Black Pluge - for calibrating black level for dynamic range.
White Pluge - for calibrating white level for dynamic range.
Geometry/Resolution – test pattern to verify geometry and resolution.
Red-Blue Color Multiburst – test pattern for verifying chroma resolution for red and
blue transitions.
4.5 Rendering 3D Test Patterns on an HDTV
This subsection describes how to render 3D test patterns on an HDTV. The 780/780AH supports Side-by-Side,
Top-and-Bottom and Frame Packing (for both interlaced and progressive timings) 3D format structures.
4.5.1 Configurations for Rendering 3D Bitmaps on an HDMI Sink Device
Typically you will render 3D bitmap images with the 780/780AH directly connected to an HDTV. This
configuration is shown below:
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4.5.2 Procedures Obtaining 3D Bitmaps on HDMI Sink Device
Use the procedures below to render 3D bitmap images on an HDMI sink.
1. Follow the procedures provided above to enable the HDMI output as the Signal Type.
2. Obtain 3D bitmaps. You can obtain 3D bitmaps in three ways:
Develop your own 3D bitmaps.
Sample 3D bitmaps from the Quantum Data websi
Generate 3D bitmaps from your own stereoscopic image pairs using the Quantum Data 3D Bitmap
Conversion Tool available from the Quantum Data website
3. Transfer your 3D bitmaps over to the 780/780AH using the procedures described in Importing Custom
Bitmaps.
4.5.3 Procedures for Rendering 3D Bitmaps or 3D Test Patterns on HDMI Sink Device
1. Select a format that is suitable for rendering 3D images such as 720p60 and 1080. Use the procedures
above Procedures for Selecting an HDMI Resolution and Frame Rate.
If you have used the Quantum Data 3D Bitmap Conversion Tool, there is a naming convention for the 3D
bitmaps which also provides the required format for each specific bitmap.
2. Touch select 3D Output option from the top level menu shown below.
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The following screen will appear:
3. Select the 3D mode (Side-by-Side, Top-and-Bottom or Frame Packing) and then select the subtype and
Left/Right options (if applicable).
4. Select the 3D bitmap image from the Test Pattern list.
Note: You will have to make sure that the 3D bitmap you use matches your selection of 3D formats and
timing (resolution). In the example above, a 3D Frame Packing bitmap is selected for 1280 x 720.
Therefore you have to make sure that you select that specific timing (i.e. 1280 x 720) and that specific 3D
format structure (Frame Packing).
4.6 How to Scroll a Bitmap Pattern
This subsection describes how to scroll bitmaps on your 780/780AH
4.6.1 Guidelines for Scrolling Bitmaps
There are two ways you can animate (move) a bitmap image: 1) image shifting (scrolling); 2) panning. You can
shift or scroll a bitmap image that you have imported into the 780/780AH by modifying the X and Y parameters
or by dragging and panning. When you use the X and Y parameters, you are limited to linear scrolling. With
panning you can move the image in non-linear motions.
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You can only scroll bitmaps whose overall pixel resolution is smaller than the resolution of the active format and
you can only scroll them within the bounds of the resolution of the active format. You cannot scroll the standard
test patterns in the 780/780AH.
In order to scroll a bitmap the name of the bitmap has to be “zp.bmp.” But you can scroll any bitmap. You just
have to make sure that you have named it “zp.bmp” (without the quotes). The zone plate bitmap is the only
bitmap that comes standard with the 780/780AH.
4.6.2 Procedures for Scrolling Bitmaps
Use the following procedure to scroll your bitmaps.
1. Touch select the desired bitmap image, e.g. Zone Plate image from the list of video patterns.
2. Double touch select on the Zone Plate bitmap to access its options.
The Zone Plate Options menu appears:
3. Specify the Horizontal Movement by touch selecting the appropriate setting Slow, Medium, Fast.
4. Specify the Vertical Movement by touch selecting the appropriate setting Slow, Medium, Fast.
The pattern will begin to move around the raster of the display in accordance with the horizontal and
vertical settings. To halt the motion, touch Stop for either or both of the Horizontal Movement and
Vertical Movement.
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2. Drag and pan the test pattern.
4.7.3 Procedures for Viewing the Video from an HDMI Source Device
Use the following procedures to view the incoming video from an HDMI source device.
1. Connect the HDMI source device under test to the 780/780AH HDMI IN connector.
2. Touch select Test Source (DVD/STB) from the top level menu shown below.
3. Touch select Video Display from the Source Tests menu shown below.
Note: Video Passthrough feature is not currently implemented.
4. Touch select the Start Fullscreen activation button on the Video Display menu to view the incoming video
without viewing the metadata from the source device under test.
Note: The 780AH has an additional option for viewing a captures incoming video screen and scrolling
throughout the entire video resolution. This is shown on the second screen shot below as View Full Frame.
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Note that you can also view 3D video bitmaps as well. The following screen is a sample of what a 3D bitmap
would look like. The example below is a Top-and-Bottom format.
5. Touch select the screen to return to Video Display menu.
6. Touch select the Start Fullscreen activation button on the Video Display menu to view the incoming video
along with the metadata from the source device under test. In this example a test pattern is shown.
Note also that the HDCP encryption status and AVmute status is shown. In addition to the AVI infoframe
values.
7. Return to the Source Test menu by touching the LCD. The SourceTest menu reappears.
8. For the 780AH you have the additional option of capturing and viewing a captured bitmap of the entire
resolution of the incoming video View Full Frame.
Bits per sample – 16, 20, 24
Sampling rate (kHz) – 32, 44.2, 48, 88.2, 96, 176.4, 192
Channels – 2.0, 2.1, 5.1, 6.1, 7.1
Level – 0dB to -99dB in 1dB or 3dB increments (per channel)
Frequency – 0.01kHz to 20kHz in 1Hz, 10Hz, 100Hz or 1000Hz
increments (per channel)
Mute – On/Off (per channel)
4.8 Testing Digital Audio on an HDTV or A/V Receiver
This section provides procedures for testing digital audio on an HDTV or A/V Receiver.
Note: It is recommended not to select bitmap images when outputting compressed audio clips.
Table 4-5 below summarizes the 780/780AH support for digital audio.
4.8.1 Connecting the 780/780AH to the Audio Rendering Device
Use the following procedures to make the physical connections from the 780/780AH to the audio rendering
device under test.
1. Make the cable connection between the appropriate the 780/780AH video output connector (e.g. HDMI
OUT, SPDIF or OPTICAL) and the input connector of the audio rendering device using the cables supplied.
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Alternatively you may connect from the 780/780AH video output connector to an HDTV through an HDMI
repeater device such as an A/V receiver. In this case make the HDMI connection between the HDMI OUT
connector on the 780/780AH and the HDMI input of the HDMI repeater device using an HDMI-to-HDMI
cable. Then connect the HDTV to an active output on the repeater. The following illustrations depict the
typical test configurations.
The following illustrations depict the test setups for the HDMI audio, SPDIF audio and optical. Note also
that you can test directly into an HDTV without going through an A/V receiver.
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4.8.2 Procedures for Testing a Display with Dolby Digital or DTS Audio Test Patterns
Use the following procedures to run audio tests using Dolby Digital and or DTS audio test patterns. These test
patterns are useful for calibrating the room acoustics in a home theatre system.
1. Make the physical connections between the 780/780AH and the audio rendering device as described in the
procedures above.
2. From the top level menu (shown in the figure below), select Audio Test Tone.
The Audio Pattern (Test Tone) menu appears as shown below:
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3. Touch select the desired Interface from the Audio Pattern menu (refer to the screen shot above which
shows HDMI). The options are Optical, SPDIF or HDMI.
4. Double touch select the Dolby Digital 5.1 or DTS-ES 6.1 item on the Audio Pattern menu (refer to the
screen shot above).
The following screen appears (DTS-ES shown):
5. Touch select the desired audio test pattern. (500-2kHz Pink is shown selected in the sample screen shot
above and Sine Wave shown in the screen shot below.) Use the information in Table 4-6 below to
understand the application of each audio test pattern.
Use the procedures below for testing multi-channel Dolby or DTS sine wave using clips.
1. Make the cable connection between the appropriate the 780/780AH video output connector (e.g. HDMI
OUT, SPDIF or OPTICAL) and the input connector of the audio rendering device using the cables supplied.
2. From the top level menu (shown in the figure below), select Audio Test Tone.
The Audio Pattern(Test Tone) menu appears as shown below:
3. Touch select the desired Interface from the Audio Pattern (Test Tone) menu (refer to the screen shot
above which shows HDMI). The options are Optical, SPDIF or HDMI.
4. Double touch select the Dolby Digital Plus 7.1/TrueHD or DTS-HD item on the Audio Pattern (Test Tone) menu (refer to the screen shot above).
1. Make the cable connection between the appropriate the 780/780AH video output connector (e.g. HDMI
OUT, SPDIF or OPTICAL) and the input connector of the audio rendering device using the cables supplied.
www.GlobalTestSupply.com
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2. From the top level menu (shown in the figure below), select Audio Test Tone.
The Audio Pattern menu appears as shown below:
3. Touch select the desired Interface (shown in the screen above) to select the active digital audio output.
(Optical selected in the example screen shot above.)
4. Double touch select the PCM Sine Wave item (shown in the screen above).
The PCM Sine Wave Options menu appears as shown below:
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5. Touch select the values for the Bits per Sample using the three buttons provided. (24 bits is selected in
the example above.)
6. Touch select the Sampling Rate by incrementing the associated arrows adjacent to the current value.
(Refer to the screen shot above which shows 96 kHz selected.)
7. Touch select the Channels by incrementing the associated arrows adjacent to the current value. (Refer to
the screen shot above which shows 7.1 selected.)
8. Specify the Level by touch selecting the associated increment or decrement buttons showing +1dB and 1dB. (Refer to the screen shot above which shows the level at 0dB.) Repeat for each channel. You can
specify the level for each channel individually.
9. Specify the Frequency of the sine wave by touch selecting the associated increment or decrement buttons.
There are four buttons on the left of the current value. (1.00 kHz is shown selected in the screen shot
above) The four buttons provide a variety of increment and decrement values for convenience. Repeat for
each channel. You can specify the frequency for each channel individually in 1 Hz increments.
Note: Always touch select the Align button to ensure that the sine waves for all channels are aligned.
10. Specify which channels you want to mute by touch selecting a channel and then touch selecting the Mute
activation button. You can only select one channel at a time. Note that only the active channels (the ones
specified in Channels will be selectable. (Refer to the screen shot above.)
4.8.5 Testing HDMI Audio Return Channel (ARC) 780AH only
You can test the HDMI 1.4 Audio Return Channel using the 780AH. The selected audio is output from the
780AH’s HDMI IN connector in this case. The HDMI IN connector emulates an ARC Tx device to test the ARC
Rx function on an A/V Receiver that supports the Audio Return Channel.
Note: The 780AH does not support the CEC commands necessary to activate the ARC Rx function in the
connected A/V receiver. Therefore you will have to have some other method of activating this ARC function in
the A/V receiver under test.
1. Make the cable connection between the 780AH HDMI IN connector and the A/V receiver’s HDMI 1.4
capable output connector.
The following illustration depicts the test setups for the HDMI audio return channel.
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5 Using the 780/780AH Test Instrument to Test HDMI Protocols on Sink
Devices
This section provides procedures for testing HDMI sink devices such as HDTVs, projectors and inputs on
repeater devices. The features and functions described in this section are included only if you have purchased the Network Analyzer option.
5.1 Testing HDCP on an HDMI HDTV or HDMI Repeater Device
This section provides procedures for testing HDCP on an HDMI equipped HDTVs. The HDCP authentication
test initiates and HDCP authentication with the sink device (with or without a repeater) and displays the AKSV
and BKSV values, the An value, the Ro values and the Ri values. A pass/fail indication is provided as well.
The 780B, 780A supports testing for HDCP 1.4 sources and sinks. The 780AH supports testing both HDCP 1.4
and HDCP 2.2 repeaters and sinks.
5.1.1 Configurations for Testing HDCP on an HDMI Sink Device
You can run this test in two configurations.
780/780AH HDMI OUT port connected directly to an HDTV input
780/780AH HDMI OUT port connected to a repeater device which is then connected to a downstream
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The Pass/Fail results and the key values exchanged during the authentication are presented on the display
as shown below (780AH example):
6. Touch select Auto-Restart to restart HDCP authentication.
Alternatively you can run this test from the command line as follows:
HDCP?
0 // indicates pass (1 indicates a failure)
5.2 Verifying the EDID on an HDMI HDTV or HDMI Repeater Device
This section provides procedures for verifying and viewing the EDID of an HDMI HDTV or an HDMI repeater
device such as an A/V receiver. You can also compare two EDIDs.
5.2.1 Configurations for Verifying and Viewing the EDID on an HDMI Sink Device
The following illustrations depict the typical test setups. You can either connect directly to an HDTV or to a
repeater device connected to an HDTV.
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5. Touch select the Read activation button from the EDID Test menu shown below.
The EDID information is presented on multiple pages on the display. An example of a few of the pages of
an EDID listing is shown below. You scroll through all the pages using the scroll bar at the right side of the
listing. In addition, the EDID test runs a check on the EDID header and checksum to determine if the EDID
is valid and runs a portion of the EDID compliance test of the HDMI Compliance Test Specification.
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The EDID sink test will also run certain sections of the EDID compliance test. The sections that are run are
those sections that do not require Capabilities Declaration Form (CDF) information to be entered for
example Test ID 8-2 shown in the following screen example below.
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5. Touch select the Load option from the EDID Test menu shown above that you want to use as a reference
EDID. The options:
Load File – Loads from an EDID file stored on the 780/780AH file system
Load TV Default – Loads the standard reference EDID for a TV from the 780/780AH file system
Load AVR Default - Loads the standard reference EDID for a AVR from the 780/780AH file system
6. If you have selected the Load File option, the following screen results. Select the file that you wish to use
as the reference EDID. In the example below there is only one file.
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7. Connect the 780/780AH HDMI OUT port to an HDMI sink device (e.g. HDTV or A/V receiver) and touch
select Compare. The results will show PASS or FAIL with an explanation as in the following two screen
examples.
When a failure occurs the following message is displayed.
5.3 Viewing the CEC devices on an HDMI network
This section describes how to view the CEC devices on an HDMI network.
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5.3.1 Configurations for Testing CEC on an HDMI Sink Device
You can run this test in two configurations.
780/780AH HDMI OUT port connected directly to an HDTV input
780/780AH HDMI OUT port connected to a repeater device which is then connected to a downstream
HDTV.
These configurations are shown below:
5.3.2 Procedures for Testing CEC on an HDMI Sink Device
Use the following procedures to test CEC on an HDMI sink device.
1. Connect the 780/780AH HDMI OUT port to an HDMI sink device (e.g. HDTV or A/V receiver) using the
configuration guidelines provided above.
2. Follow the procedures above for Selecting a Signal Type and Resolution to enable the HDMI output.
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5.4 Multi-protocol (HDCP, EDID and CEC) testing on an HDMI HDTV
This section provides procedures for testing HDCP, EDID and CEC using the Aux Combo Test image. The Aux
Combo Test image runs tests similar to the individual HDCP, EDID and CEC tests except that the results are
displayed on the HDTV that the 780/780AH HDMI output is connected to.
5.4.1 Configurations for running multi-protocol tests on an HDMI Sink Device
You run this test with the 780/780AH HDMI OUT port connected directly to an HDTV input
This configuration is shown below:
5.4.2 Procedures for running multi-protocol tests on an HDMI Sink Device
Use the procedures below to run a multi-protocol test on an HDMI sink.
1. Make the physical connections between the 780/780AH HDMI OUT connector and the display device
under test.
2. Enable the HDMI output using the procedures at Selecting a Signal Type and Resolution.
3. Touch select video pattern status and activation button on the lower right of the LCD interface.
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6 Using the 780/780AH Test Instrument to Test HDMI Source Devices
This section provides procedures for testing HDMI source devices such as DVD players, set top boxes and
outputs on repeater devices. The features and functions described in this section are included only if you have purchased the Network Analyzer option.
6.1 Testing Video from an HDMI Source Device
This subsection describes how to test the video on HDMI source devices.
6.1.1 Connection Configurations for Testing HDMI Source Devices
The 780/780AH’s HDMI input port acts as a “reference” HDMI sink device. Therefore it enables you to emulate
a known good HDMI sink device to conduct a basic confidence test of an HDMI source device. This test
ensures that you are receiving a valid HDMI video signal by displaying the timing of the incoming signal and
informing you whether it is HDCP encrypted or not. You can run this test in three configurations:
Source device connected directly to the 780/780AH HDMI IN connector.
Source device connected to the 780/780AH HDMI IN connector through a repeater device.
780/780AH HDMI OUT and HDMI IN ports acting as both as a known good source and a known good sink
connect to both the input and output of the repeater device.
In all cases the 780/780AH is emulating a sink to test an upstream source. In the third configuration, the
780/780AH is emulating both an HDMI source and sink. These test configurations are shown below.
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6.1.2 Procedures for Testing Video on an HDMI Source Device
Use the following procedures to test the video from an HDMI source device. You can view the incoming video
and check the video and timing parameters of the incoming video.
1. Make the physical connection between the 780/780AH HDMI IN port and the source device under test
using the configuration instructions above.
2. Touch select Test Source (DVD/STB) from the top level menu shown below.
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3. Touch select Video Display from the Source Tests menu shown below.
4. Touch select the Start Fullscreen activation button on the Video Display menu to view only the incoming
video (no metadata) from the source device under test.
The video from the source is shown on the 780/780AH LCD as depicted below.
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5. Return to the Source Test menu by touching the LCD. The SourceTest menu reappears as shown below.
Note that you can also view 3D video bitmaps as well. The following screen is a sample of what a 3D
bitmap would look like. The example below is a Top-and-Bottom format.
6. Touch select the screen to return to Video Display menu.
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7. Touch select the Start Detailed activation button on the Video Display menu to view the incoming video
along with the metadata from the source device under test. In this example a test pattern is shown.
Note that the HDCP encryption status and AVmute status are also shown.
9. For the 780AH you have the additional option of capturing and viewing a captured bitmap of the entire
resolution of the incoming video View Full Frame.
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8. Return to the Source Test menu by touching the LCD. The SourceTest menu reappears.
9. Touch select Format Analyzer from the Source Tests menu shown below.
10. Touch select the Read activation button (shown on the screen below) to initiate the test. The results are
shown in the screen shots below. The first screen shows a typical pass results, the second screen shows a
failure condition and the third screen shows a case where the incoming format was unknown.
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Table 6-1: Format Analyzer
Timing Parameters (left side)
Description
Video Type
Indicates whether the source is HDMI or DVI.
Total
Total horizontal and vertical resolution including blanking.
Active
Total active horizontal and vertical resolution excluding blanking.
Frames/sec
The frame rate of the HDMI/DVI input source.
Scan Type
Indicates whether the HDMI/DVI input source is progressive or interlaced.
If one of the timing parameters does not match the value of the parameters in the associated standard timing in
the 780/780AH format library, an indication of the error is shown as can be seen below.
If the timing does not match a standard timing in the 780/780AH format library, a message is shown: “Unknown
format” as can be seen below.
Table 6-1 below describes each field in the Format Analyzer on-screen report. The basic timing information is
shown on the left of the resulting screen and the AVI infoframes received are displayed on the right. Also
displayed on the right side is an indication of the status of HDCP encryption.
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Table 6-1: Format Analyzer
HSYNC delay
The horizontal sync pulse delay in pixels.
HSYNC width
The horizontal sync pulse width in pixels.
VSYNC delay
The vertical sync pulse delay in lines.
VSYNC delay
The vertical sync pulse width in lines.
HSYNC polarity
The polarity of the horizontal sync pulse; either positive (+) or negative (-).
VSYNC polarity
The polarity of the vertical sync pulse; either positive (+) or negative (-).
AVI Infoframe Parameters
(right side)
Description
Bits per comp
The number of bits per component color. Can be 6, 8, 10, 12, 16.
Color space
Color space and sampling
Color space:
YCbCr
RGB
xvColor
Sampling:
4:4:4
4:2:2
Basic colorimetry
The ITU colorimetry standard.
Pixels repeated
Indicates whether pixel repetition is active.
Video ID code (VIC)
The CEA video identification code number.
Resolution
Shows the horizontal and vertical resolution as well as the frame rate and the aspect ratio.
AVmute status
The current setting of the AVmute parameter in the General Control Packet.
HDCP
Indicates the HDCP encryption status either: 1) Encrypted or 2) Unencrypted.
6.2 Viewing Source Data Island Packet
This subsection describes how to view the HDMI data island packets from an HDMI source device.
6.2.1 Configurations for Viewing the Data Island Packets from a Source Device
The 780/780AH’s HDMI input port acts as a “reference” HDMI sink device. Therefore it enables you to emulate
a known good HDMI sink device to conduct a test on a source device. You can view the data island packets
with the source device connected directly to the 780/780AH. This test configuration is shown below.
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6.2.2 Procedures for Viewing the Data Island Packets from a Source Device
Use the following procedures to view the data islands packets from an HDMI source device.
1. Connect the HDMI system devices to the 780/780AH as shown in the diagram above. The HDMI source
device output is connected the 780/780AH HDMI IN connector.
2. Touch select Test Source (DVD/STB) from the top level menu shown below.
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3. Touch select Packet Viewer from the Source Tests menu shown above.
4. Touch select the Refresh activation button on the Packet Viewer menu (shown below) to view the data
island packet information (AVI Infoframe shown).
5. Touch select the Save activation button on the Packet Viewer menu to save the data to a file.
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6.3 Testing HDCP Max Devices on an HDMI Source Device
This subsection describes how to run a test of the number of HDCP devices an HDMI source device supports.
The Max HDCP devices test runs a test on the source device (such as a DVD or STB) to determine how many
downstream devices are supported during an HDCP authentication with a repeater device.
6.3.1 Configurations for Testing Max Devices a Source Device Supports
The 780/780AH’s HDMI input port acts as a “reference” HDMI sink device. Therefore it enables you to emulate
a known good HDMI sink device to conduct a test on a source device. You can run this source device
connected directly to the 780/780AH. This test configuration is shown below.
6.3.2 Procedures for Testing Max Devices a Source Device Supports
Use the following procedures to test the maximum number of HDCP devices a source device supports. The
780 will test up to 16 keys. If the there are more than 16 keys reported the 780 will indicate that at least 16 are
supported.
1. Connect the HDMI system devices to the 780/780AH as shown in the diagram above. The HDMI source
device output is connected the 780/780AH HDMI IN connector.
2. Touch select Test Source (DVD/STB) from the top level menu shown below.
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The following screen appears:
3. Touch select HDCP Test from the Source Tests menu shown above.
4. Touch select the Find Max Devs activation button on the HDCP Input Tests menu (shown below) to test
the number of HDCP device the source device supports.
Note: You can also disable HDCP on the HDMI Rx port using the Allow Rx HDCP toggle button.
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6.3.3 Procedures for disabling HDCP on the 780/780AH Rx port - GUI
You can disable the HDCP registers of the 780/780AH’s Rx port to test how your source device responds to
HDCP being disabled. You can disable the HDCP port either through the GUI or through the command line.
1. Touch select the Allow Rx HDCP activation button to enable / disable HDCP. When the button is green
HDCP is enabled.
Note: You can also disable HDCP on the HDMI Rx port using the Allow Rx HDCP toggle button. See
procedures below.
6.3.4 Procedures for disabling HDCP on the 780/780AH Rx port – Command Line
For instructions on establishing a command line session with the 780/780AH from your PC refer to the section:
Command Interface. Use the commands in the following procedures enable and disable HDCP on the HDMI Rx
port.
1. To disable HDCP on the HDMI Rx port enter the following command:
CPAG 0
ALLU
2. To re-enable HDCP on the HDMI Rx port enter the following command:
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CPAG 1
ALLU
6.4 Testing Audio of an HDMI Source Device
This subsection describes how to test the audio from an HDMI source device. You can view the audio analyzer
report from the GUI or via the command line. Procedures for both are provided below.
6.4.1 Configurations for Testing Audio on an HDMI Source Device
With the 780/780AH you can run a test on the HDMI audio from a source device. This test shows you the
decoded audio IEC header information, the audio infoframes and the audio sample packet header information
transmitted from the connected source device which could be a DVD, set top box or the output of an A/V
Receiver. You can run this test in three configurations:
Source device connected directly to the 780/780AH.
Source device connected to the 780/780AH through a repeater device.
780/780AH HDMI OUT and HDMI IN ports acting as both as a known good source and a known good sink
connect to both the input and output of the repeater device.
In all cases the 780/780AH is emulating a sink to test an upstream source. In the third configuration, the
780/780AH is emulating both an HDMI source and sink. These test configurations are shown below.
Table 6-2 below describes each field in the Audio Analyzer on-screen report. The audio infoframe information is
shown on the left of the resulting screen and the channel status data from the audio sample packets received
are displayed on the right.
6.4.3 Procedures for Monitoring LPCM Audio from a Source Device (780AH only)
You can monitor the incoming stereo LPCM audio on the HDMI IN port at the headphone jack on the front edge
of the 780AH. You can also monitor a single channel of LPCM audio through the embedded speaker. You can
select what channels of a multi-channel LPCM to monitor on the stereo headphone jack or which single
channel on the speaker using the screens provided. Use the following procedures to configure the audio
monitoring of the incoming LPCM audio through the headphone jack and embedded speaker.
1. Connect the HDMI system devices to the 780AH as shown in the diagram above. The HDMI source device
output is connected the 780AH HDMI IN connector.
2. Touch select Test Source (DVD/STB) from the top level menu shown below.
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6.5 Testing an HDMI Source’s Response to an EDID
The 780/780AH HDMI IN port emulates an HDMI sink device. Part of that emulation function is presenting an
EDID to a source when a sink device is powered and hot plug is asserted. The 780/780AH is provisioned with a
default EDID from the factory. There are two standard EDIDs available with the 780/780AH as provided: 1)
Standard HDTV EDID, 2) Standard A/V Receiver EDID.
However you can reprovision the EDID by connecting it to a sink device whose EDID you would like to use for
testing. The 780/780AH can store multiple EDIDs. These EDIDs can be obtained either by extracting them from
an HDMI sink device (e.g. HDTV or AVR) or by importing EDID .xml files created using Quantum Data EDID
Editor tools. For procedures on importing EDIDs refer to Adding Reference EDIDs for Use in Testing HDMI
Devices.
The EDID test of an HDMI source device enables you to see how a source device responds to a specific EDID
or a series of EDIDs. The EDID could be a known good EDID or an EDID you have chosen specifically for
testing purposes.
6.5.1 Configurations for Testing an HDMI Source Devices Response to an EDID
You can run this test in two configurations: 1) with your source device connected directly to the 780/780AH, 2)
with your source device connected to the 780/780AH through a repeater device. In both cases the 780/780AH
is emulating an HDMI sink to test an upstream source. These configurations are shown below.
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The following menu appears.
3. Touch select Load from the EDID Tests menu. The following screen results.
The options:
Load File – Loads from an EDID file stored on the 780/780AH file system
Load TV Default – Loads the standard reference EDID for a TV from the 780/780AH file system