Quantum 780 User Manual
780 Handheld Test Instrument
User Guide
Rev: A28
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Revision A28
Table of Contents
1 Overview of the 780 Handheld Test Instrument .................................................................. 3
1.1 Scope of this User Guide .............................................................................................................. 3
1.2 Changes to this User Guide .......................................................................................................... 3
1.3 Introducing the 780 Handheld Test Instrument ............................................................................ 3
1.4 Overview of 780 features ............................................................................................................. 4
2 Physical Interfaces of the 780 Handheld Test Instrument for HDMI ................................ 7
2.1 Video Interfaces ........................................................................................................................... 7
2.2 Audio interfaces ........................................................................................................................... 8
2.3 Administrative Interface ............................................................................................................... 8
3 General Operation ................................................................................................................... 9
3.1 Power Considerations ................................................................................................................... 9
3.2 Tilt Bail ...................................................................................................................................... 10
3.3 Navigating through the 780 User Interface ................................................................................ 10
3.4 Calibrating the LCD ................................................................................................................... 12
4 Using the 780 Test Instrument to Video and Audio Pattern Tests on Sink Devices ....... 14
4.1 Making Physical Connections .................................................................................................... 14
4.2 Selecting a Signal Type and Resolution ..................................................................................... 15
4.3 Rendering Test Patterns on an HDTV ........................................................................................ 20
4.4 Using Custom Test Image Packs ................................................................................................ 28
4.5 Rendering 3D Test Patterns on an HDTV .................................................................................. 29
4.6 How to Scroll a Bitmap Pattern ................................................................................................. 31
4.7 How to Pan a Bitmap Image ...................................................................................................... 33
4.8 Testing Digital Audio on an HDTV or A/V Receiver................................................................ 37
5 Using the 780 Test Instrument to Test HDMI Protocols on Sink Devices ....................... 47
5.1 Testing HDCP on an HDMI HDTV or HDMI Repeater Device ............................................... 47
5.2 Verifying the EDID on an HDMI HDTV or HDMI Repeater Device ....................................... 50
5.3 Viewing the CEC devices on an HDMI network ....................................................................... 56
5.4 Multi-protocol (HDCP, EDID and CEC) testing on an HDMI HDTV ...................................... 59
6 Using the 780 Test Instrument to Test HDMI Source Devices ......................................... 61
6.1 Testing Video from an HDMI Source Device ........................................................................... 61
6.2 Viewing Source Data Island Packet ........................................................................................... 68
6.3 Testing HDCP Max Devices on an HDMI Source Device ........................................................ 70
6.4 Testing Audio of an HDMI Source Device ................................................................................ 72
6.5 Testing an HDMI Source’s Response to an EDID ..................................................................... 79
7 Using the 780 Test Instrument Installer Utility .................................................................. 85
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7.1 Diagnosing HDMI Interoperability Problems toward the Source - Upstream ........................... 86
7.2 Diagnosing HDMI Interoperability Problems at the Sink - Downstream .................................. 90
7.3 Diagnosing HDMI Interoperability Problems with a Repeater .................................................. 93
7.4 Diagnosing HDMI Interoperability Problems in an HDMI Network ........................................ 95
8 Using the 780 Test Instrument to Monitor the HDMI CEC and DDC channel .............. 99
8.1 Auxiliary Channel Analyzer – Emulation Monitoring ............................................................... 99
8.2 Auxiliary Channel Analyzer – Passive Monitoring ................................................................. 112
8.3 Auxiliary Channel Analyzer – Passive and Emulation Monitoring ......................................... 118
8.4 Auxiliary Channel Analyzer – Saving Auxiliary Channel Analyzer Traces ............................ 124
9 Using the 780 Test Instrument to Test HDMI Cable or Repeaters ................................ 127
9.1 HDMI Cable or Repeater Test ................................................................................................. 127
10 Creating and Using Custom Formats, EDIDs, Bitmaps and Menus .............................. 133
10.1 Creating and Using Custom Formats ....................................................................................... 133
10.2 Adding Reference EDIDs for Use in Testing HDMI Devices ................................................. 136
10.3 Using Custom Bitmaps ............................................................................................................ 141
10.4 Creating Custom Menus ........................................................................................................... 145
11 Command Interface ............................................................................................................ 147
11.1 Guidelines for Using the Command Line ................................................................................ 147
11.2 Procedures for Enabling the Command Line Interface ............................................................ 147
11.3 Procedures for Entering Commands ........................................................................................ 149
12 Upgrading the 780 ............................................................................................................... 161
12.1 Upgrading the Firmware and Gateware on your 780 Handheld Test Instrument for HDMI ... 161
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1 Overview of the 780 Handheld Test Instrument
This section provides an overview of the 780 Handheld Test Instrument.
Note: Please check the Quantum Data website for information and updates for the 780 software releases.
1.1 Scope of this User Guide
This User Guide documents the complete operation of the 780 Handheld Test Instrument. There is a Quick
Start Guide that provides basic instructions on how to use the 780 Handheld Test Instrument.
Note: Please be sure to check the Quantum Data website for updates to this User Guide.
1.2 Changes to this User Guide
The following changes have been made to this User Guide since its last version:
Added description of ACRG command for disabling the sending of Audio Clock Regeneration packets.
Added description of the AUDA command for reading the N & CTS values of the ACR packets from a
source.
1.3 Introducing the 780 Handheld Test Instrument
The 780 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 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 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 rate test feature.
A color touch display makes the 780 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: Image above shown with optional hardware board for passive HDMI monitoring between an HDMI source
and sink device.
1.4 Overview of 780 features
The 780 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:
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.
Custom bitmaps and pattern scrolling – The 780 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 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:
http://www.quantumdata.com/apps/3D/BMP_conv.asp. There are some sample 3D bitmaps on this
webpage as well.
Video confidence test of an HDMI source device – The 780 enables you to view the incoming video on the
780’s LCD screen.
Audio testing for AVRs and HDTVs – The 780 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
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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 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 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 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 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 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 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’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 enables you to run a test to determine how many HDCP
devices an HDMI source can support during HDCP authentication.
CEC ping test of any HDMI device – The 780 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 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’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 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:
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Table 1-1: 780 Shipping Box Contents
Item Description
Part No.
780 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
DDC monitoring with Auxiliary Channel Analyzer (ACA) – The 780 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 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 shipping box
The 780 instrument shipping container includes the items listed in Table 1-1 below:
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Table 2-1: 780 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.
Pixel rate: Timings up to 1080p60.
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
(Optional Feature Package)
Single link HDMI input connector. Supports HDMI 1.3:
Colorimetry: RGB, YCbCr.
Sampling: 4:4:4 and 4:2:2.
Pixel rate: Timings up to 1080p60.
2 Physical Interfaces of the 780 Handheld Test Instrument for HDMI
This section describes the administration, video and audio interfaces on the 780 test instrument:
2.1 Video Interfaces
Table 2-1 below describes the video interfaces on the 780 test instrument, these interfaces are used to render
test patterns for testing consumer electronic HDTVs and computer displays.
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Table 2-2: 780 Audio Interfaces
Interface
Description
HDMI (1) Output Type A
Single link HDMI output connector. Supports HDMI 1.3:
Channels: 8.
Bits per sample: 16, 20, 24.
Sampling rates (kHz): 32.0, 44.1, 48.0, 88.2, 96.0, 176.4, 192.0.
Formats: LPCM, Dolby Digital (clips), DTS (clips)
SPDIF - RCA
SPDIF RCA audio connector:
Channels: 8 (clips)
Bits per sample: 16, 20, 24.
Sampling rates (kHz): 32.0, 44.1, 48.0, 96.0
Formats: LPCM, Dolby Digital (clips), DTS (clips)
Optical – JIS FOS
Optical audio connector:
Channels: 8 (clips)
Bits per sample: 16, 20, 24.
Sampling rates (kHz): 32.0, 44.1, 48.0
Formats: LPCM, Dolby Digital (clips), DTS (clips)
2.2 Audio interfaces
Table 2-2 below describes the audio interfaces supported on the 780 test instrument.
2.3 Administrative Interface
The 780 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
gateware.
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3 General Operation
This section describes power up, power usage and general operation.
3.1 Power Considerations
The 780 has a rocker style power switch on the back panel. Refer to the photo below.
The 780 is a portable battery powered test instrument. It is equipped with nickel metal hydride batteries.
Typically, you can use the 780 on batteries for about 4 hours. 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 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 with the charger and only use the batteries
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.
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 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 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 has support bail for convenience in viewing. This is depicted in the illustration below.
3.3 Navigating through the 780 User Interface
The 780 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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Table 3-1: Top Level Menu
Item
Submenu - Pattern
Third Level Menu
Value
Top Menu Bar
Home
See Below
N/A
Preferences
Audible Touch
Off
On
Screen Brightness
Min
25%
50%
75%
Max
USB Mode
COM for commands
Disk for downloading files and upgrades
Hot Plug Mode
On – 804 automatically select the
formats in the EDID of the connected
HDTV.
Off – 804 will not automatically select
the formats in the EDID of the
connected HDTV.
AVMute
On – AVMute will occur when the
resolution is changed on the 780 HDMI
output.
Off – AVMute will occur when the
resolution is changed on the 780 HDMI
output.
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 Test Instrument to Test HDMI Sink Devices
Table 3-1 below shows functions available in the top level menu.
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Test Source (DVD/STB)
(with Network Analyzer
option)
See below: Using the 780 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 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 Test Instrument Installer Utility
Resolution
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 Calibrating the LCD
It is recommended that you calibrate the LCD display prior to using the 780 Test Instrument. 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.
The Help menu appears as shown below:
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2. Touch select the Calibrate activation button. A screen appears instructing you to press each of four red
squares.
When you finish touch selecting the fourth box, the calibration is completed and you will return to the Home
menu.
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4 Using the 780 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; 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 and the device(s)
under test.
4.1.1 Connecting the 780 to the Display Device
Use the following procedures to make the physical connections from the 780 to the display device under test.
1. Make the cable connection between the appropriate the 780 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 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 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 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 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:
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Table 4-1: Signal Type
Signal Type Name
Physical Connector
Option
Option Values
HDMI
HDMI OUT via HDMI to
HDMI cable (provided)
Color Space
YCbCr
YCbCr 4:2:2
RGB
Bit Depth
8
10
12
Format Type
TV
Computer
User
DVI
HDMI OUT via HDMI to DVI
cable (not provided)
Format Type
TV
Computer
User
YPbPr Analog
ANALOG HD-15 (VGA) via
HD to 3-RCA cable
(provided)
Sync Type
Sep[arate] Sync
Sync on Green
RGB Analog
ANALOG HD-15 (VGA) via
VGA cable (not provided)
Format Type
TV
Computer
User
Sync Type
Sep[arate] Sync
Sync on Green
Table 4-2: HDTV (Consumer) Formats – Applies to HDMI, DVI (TV) and Analog YPbPr
Resolution
Frame Rates
Color Space
Sample Mode
Bit Depth
1080p (1920x1080)
1080i (1920x1080)
720p (1280x720)
576p (720x576)
576i (720x576)
480p (720x480)
480i (720x480)
24Hz
25Hz
29.97Hz
30Hz
50Hz
59.94Hz
60Hz
100Hz
119.88Hz
120Hz
YCbCr (HDMI)
YPbPr (Analog only)
RGB
4:4:4 (HDMI, DVI, YCbCr
only)
4:2:2 (HDMI only)
8
10 (HDMI only)
12 (HDMI only)
5. Use the information in Tables 4-2 and 4-3 below to select the proper video signal.
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Table 4-3: Partial List of Computer Formats – Applies to DVI Computer and Analog RGB Video Signal
Types
Resolutions
Name
Color Space
Sample Mode
Bit Depth
640x480
800x600
1024x768
1280x768
1280x1024
1600x1024
1920x1200
VGA
SVGA
XGA
WXGA
SXGA
WSXGA
WUXGA
RGB
4:4:4 (DVI)
8
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 can be set in when testing HDMI sink devices that determine how the 780 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 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 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 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 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 figure below.
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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 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 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 top level menu. Navigate to the second page by touch selecting the
More… key.
2. Touch select the On activation button next to AVMute on the screen below.
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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 and the HDTV and also
where the 780 is connected to an HDTV through a repeater device.
1. From the Home screen on the 780 display, touch select Video Pattern as shown below.
Note: Your Home screen may appear somewhat different depending on what options you have.
2. Touch select the desired test pattern from the menu shown below. You can select patterns that are
standard with the 780 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.
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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
ability to product fully saturated
primary and secondary color.
SMPTE
Orientation - Vertical
Direction:
Left to Right
Right to Left
Orientation - Horizontal
Direction:
Top / Bottom
Bottom / Top
Full
Orientation - Vertical
Direction:
Left to Right
Right to Left
Orientation - Horizontal
Direction:
Top / Bottom
Bottom / Top
Split
Orientation - Vertical
Direction:
Left to Right
Right to Left
Orientation - Horizontal
Direction:
Top / Bottom
Bottom / Top
Ramp/Stair Patterns
Applications:
Stair - Full
Orientation - Vertical
Direction:
Left to Right
Right to Left
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
Stair - To visually check
grayscale tracking performance
of a rear projection display.
Ramp – To check the digitizing
linearity of video signal
processors.
Orientation - Horizontal
Direction:
Top / Bottom
Bottom / Top
Bars
5
11
21
Color
R
G
B
C
M
Y
W
Stair – Split
Orientation - Vertical
Direction:
Left to Right
Right to Left
Orientation - Horizontal
Direction:
Top / Bottom
Bottom / Top
Bars
5
11
21
Color
R
G
B
C
M
Y
W
Ramp
Color
R
G
B
C
M
Y
W
3D Box Pattern
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.
No variants
Box 1 Offset
-64 to +64
Box 2 Offset
-64 to +64
Background Brightness
0 to 63
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Table 4-3: Test Patterns
Pattern Name
Variant
Options
Range of Values
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
on analog displays and motion
artifacts.
No variants
Show Text
On / Off
Show Center Cross
On / Off
Show Video
On / Off
Show Overscan
On / Off
Grid Type
10x50
5% H/V
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Table 4-3: Test Patterns
Pattern Name
Variant
Options
Range of Values
Geometry/Resolution
Patterns
Applications:
Grid – To check and adjust
convergence of red, green and
blue pictures.
Linearity – for testing deflection
linearity testing and alignment.
Overscan – To check and
adjust for the proper geometry
of display including picture
centering, size, pincushion and
linearity.
Grid Color Mode
White on Black
Black on White
Linearity
Color Mode
White on Black
Black on White
Overscan
N/A
Needles Pattern
Application: To detect whether
scan velocity modulation is
enabled on display.
No variants
Window/Raster Pattern
Applications:
Window1 - To calibrate display
drive chromaticity.
Window2 - To calibrate display
cutoff chromaticity.
Raster – To check color purity
and display chrominance
uniformity.
Window
IRE Level
-5
-1
100
+1
+5
IRE Label
Off
On
Color
R
G
B
C
M
Y
W
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Table 4-3: Test Patterns
Pattern Name
Variant
Options
Range of Values
Raster
IRE Level
-5
-1
100
+1
+5
IRE Label
Off
On
Color
R
G
B
C
M
Y
W
Needles Pattern
Application: To detect whether
scan velocity modulation is
enabled on display.
N/A
Focus Pattern
Application: To detect whether
scan velocity modulation is
enabled on display.
N/A
Multiburst Pattern
Application: To check a
display’s ability to produce
sharply defined stripes at equal
brightness up to full resolution.
N/A Sharpness
Application: To align display
sharpness, picture, aperature
and scan velocity modulation
adjustments.
No Variants
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Table 4-3: Test Patterns
Pattern Name
Variant
Options
Range of Values
Decoder Check
Application: To check the color
decoder performance to
determine if the decoder overemphasizes red or green
colors.
No Variants
Decoder Adjust Pattern
Application: To adjust a
display’s color decoder/matrix
circuit for most accurate color
reproduction.
No Variants
Converge Pattern
Application: To color converge
a display throughout the entire
picture area.
No Variants
Pseudo Random Pattern
Application: To test for pixel
errors on an HDMI cable.
No Variants
LG Color Pattern
Application: To test a display’s
ability to product fully saturated
primary and secondary color.
White is 100 IRE
Yellow is 100 IRE
Cyan is 100 IRE
Gray is 35 IRE
Red is 100 IRE
Blue is 100 IRE
Black is 0 IRE
No Variants
Horizontal
Vertical
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Table 4-3: Test Patterns
Pattern Name
Variant
Options
Range of Values
UL 3 Bar Pattern
No Variants
Black Pluge Pattern
Application: To set the picture
black level and check the DC
restoration performance of a
display.
No Variants
White Pluge Pattern
Application: To set the contrast
and brightness controls on
fixed pixel displays.
No Variants
N/A
Checkboard Pattern
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
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Table 4-4: Custom Test Image Packs
4.4 Using Custom Test Image Packs
The 780 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
support at: http://www.quantumdata.com/support.
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.
Refer to the table 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 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-
field and bright-field gray levels.
Average picture level is approximately 50%.
1
2
3
6
7
8
9
4.5 Rendering 3D Test Patterns on an HDTV
This subsection describes how to render 3D test patterns on an HDTV. The 780 supports Side-by-Side, Topand-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 directly connected to an HDTV. This configuration is
shown below:
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