Teledyne Lecroy M21 User manual

M21 Video Generator / Analyzer –Quick Start Guide Page 1
October 18, 2023
P/N 934512-00 - Rev. C
M21 Video
Analyzer/Generator
for HDMI 8K & DisplayPort UHBR
Quick Start Guide
Rev. C

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October 18, 2023
P/N 934512-00 - Rev. C
1Overview of M21 Video Analyzer / Generator
This section provides an overview of the Teledyne LeCroy quantumdata
M21 Video Generator / Analyzer. The M21 is a handheld HDMI Video
Generator and Analyzer for 8K and a DisplayPort Analyzer for UHBR
data rates. The M21 has a large embedded touch screen for control and
status. The M21 can also be managed through the Video Protocol Suite
(VPS) graphical user interface running on a host PC connected to the
M21 over an Ethernet cable.
1.1 Scope of this Quick Start Guide
This Quick Start Guide provides instructions on the M21 connectors,
power up instructions and basic turn up procedures. This Quick Start
Guide does not provide instructions on the operational features and
functions of the M21. Please refer to the M21 User Guide available on
the Teledyne website for detailed instructions on the operation of the
M21.
Note: Please be sure to check the Teledyne website for updates to this
document and the User Guide.
1.2 M21 Video Generator / Analyzer
The M21 Video Generator / Analyzer is a handheld video generator and
analyzer that enables you to conduct quick verification testing of your
digital video source and display devices and distribution equipment. The
M21 is equipped with both an HDMI video generator and video analyzer
function and a DisplayPort video analyzer function. These interfaces
enable you to test audio, video and related protocols—HDCP, EDID,
CEC & infoframes, HDMI FRL and DisplayPort Link Training. The M21’s
portability makes it ideal for your bench and even for use in the field with
its battery power capability.
A 10-inch color touch display makes the M21 easy and convenient to
use. When testing a digital video source device you can toggle between
operating the unit through the touch screen and viewing the incoming
video from the source.

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M21 Rear Edge

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2Physical Interfaces of the M21 Protocol
Analyzer / Generator
This section describes the administration, video and audio interfaces on
the M21 test instrument. Table 2-1 below describes the video interfaces
on the M21 test instrument.
Table 2-1: M21 Video Interfaces
Video Interface
Description
HDMI (1) Output Type A
▪FRL Lane Rates: All Lane Rates Up to 12Gb/s.
▪Number of Lanes: 3,4 Lanes.
▪Bit Depth: 24/30/36/48 bit.
▪Colorimetry: RGB, YCbCr.
▪Sampling: 4:4:4, 4:2:2, 4:2:0.
▪Pixel rate: Timings up to 8K –2376MHz.
▪Audio: LPCM, Dolby Digital and DTS.
HDMI (1) Input Type A
▪FRL Lane Rates: All Lane Rates Up to 12Gb/s.
▪Number of Lanes: 3,4 Lanes.
▪Bit Depth: 24/30/36/48 bit.
▪Colorimetry: RGB, YCbCr.
▪Sampling: 4:4:4, 4:2:2, 4:2:0.
▪Pixel rate: Timings up to 8K –2376MHz.
▪Audio: LPCM, Dolby Digital and DTS.
DisplayPort Input Connector
▪DP Lane Rates: All Lane Rates Up to 10Gb/s.
▪Number of Lanes: 1,2,4 Lanes.
▪Bit Depth: 24/30/36/48 bit.
▪Colorimetry: RGB, YCbCr.
▪Sampling: 4:4:4, 4:2:2.
▪Audio: LPCM.
DisplayPort Aux Channel Connector
▪Enables passive monitoring of the DisplayPort Aux
channel. Note: There is an optional passive cable
that is necessary when monitoring the Display
Port link passively at higher speeds.

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USB-C DP Alt Mode Input Connector
▪DP Lane Rates: All Lane Rates Up to 13.5Gb/s.
▪Number of Lanes: 1,2,4 Lanes.
▪Bit Depth: 24/30/36/48 bit.
▪Colorimetry: RGB, YCbCr.
▪Sampling: 4:4:4, 4:2:2.
▪Audio: LPCM.
2.1 Digital Audio interface
Table 2-2 below describes the distinct digital audio interface supported
on the M21. Note audio transmission is supported only through the HDMI
Tx interface.
Table 2-2: M21 HDMI RCA SPDIF Output Audio Interface
Interface
Description
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)
2.2 Headphone jack and speaker
The M21 test instrument is equipped with a headphone Jack and an
internal speaker for monitoring the incoming audio from an HDMI or
DisplayPort source or sink device for HDMI eARC. This functionality is
currently not available.

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2.3 Administrative Interface
The M21 test instrument is equipped with ports for control and
administration. These are described below:
•RJ45 Ethernet –For control through the external VPS GUI
connected from a host PC or for command line control.
•USB Type A –For connecting a mouse or keyboard to control the
M21 embedded GUI.
•RS-232 –For command line control.

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2.4 SD Card Slot
The M21 test instrument is equipped with an SD card slot. The SDCard
is used for loading bitmaps, reports, and for recovery in the event of a
failed upgrade.
Note: M21 Image above shows the front edge with SD card slot.

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3Getting Started
3.1 What is in the M21 shipping box?
The M21 instrument shipping box includes the items listed in the Table
below (except where noted as optional):
M21 Shipping Box Contents
Item Description
Part No.
M21 Video Generator / Analyzer
934385-00
12V DC (5 amp) Power Supply / Adapter / Charger.
42A0000011542
International Power Plug adapters.
42A0000011176
Cable: HDMI-to-HDMI Type A.
42A0000009771
Cable: DP-to-DP Standard. (Not included with M21 P/N 00-00251)
933193-00
Cable: USB-C
42A0000011304
Ethernet Cable
30-00151
CE Certificate
934512-00
Optional Cable: HDMI Cable for Passive Monitoring of the DDC channel
95-00231
Optional Cable: DisplayPort Cable for Passive Monitoring of the Aux Chan
95-00169
3.2 Getting the M21 Up and Running
Use the following procedures to get your M21 up and running.
1. Remove the M21 from the shipping box and lay it flat on your
desktop or benchtop.
2. Connect the M21 wall power adapter with the USB-C connector

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(provided) to a suitable outlet (100-240V 50/60Hz).
Note: The M21 can operate for a limited time on battery power.
Typically you can expect one (1) hour of battery power from a four
(4) hour charge depending on the intensity of the usage.
3. Connect the other end of the power supply cable with the USB-C
connector to the port on the back of the M21 labeled “DC In 15V 3A.”
This connector is located on the back of the unit as shown below.
Use the appropriate International plug provided.
4. Turn the unit on with the power rocker switch located next to the
USB-C power input.
Important Note: Please be sure to wait at least 10 seconds when
power cycling the M21 before reapplying power.
Note: You can connect a mouse to one of the USB ports on the
back of the M21 as shown below. This enables you to use the mouse
to select and active functions rather than by touching.

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4General Operation
Once powered up the M21 is ready for testing your HDMI or DisplayPort
devices. This section provides a brief overview of the application screens
on the embedded touch screen display.
4.1 Tilt Bail
The M21 has support bail (shown below) for convenience in viewing.
This is depicted in the illustration below.
4.2 Navigating through the M21 User Interface
The M21 user interface is a 10-inch color touch screen display with a
1280 by 800 resolution. A single touch will activate an item on the
screen.

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4.2.1 Home Screen
The Home screen is shown below.
4.2.2 Navigation
You can navigate to the various applications supported by the M21 from
the lower strip of the GUI as shown below:
4.2.3 Status Bar
The M21 has a status bar on the top of the screen. The Tx status is on
the left half and the Rx status is on the right half of the screen.

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The items in the Top Status Bar are described in the Table below.
Top Status Bar
Type
Status Item
Function
Video
Generator
(TX)
HDMI (only)
FRL or TMDS
Indicates whether the HDMI video generator is in the FRL mode or TMDS mode.
If FRL then the number of lanes is shown and the lane rate.
Video:
Indicates the Colorimetry, Timing (resolution), test pattern, horizontal rate and
pixel clock of the video generator output.
Audio:
Indicates the audio that is being transmitted. This could be LPCM or compressed.

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Video
Analyzer
(RX)
Mode:
HDMI or DisplayPort
For HDMI: FRL or TMDS
For DP: HBR or UHBR
Indicates whether the video analyzer is
receiving HDMI or DisplayPort stream. For
HDMI FRL and DisplayPort the number of
Lanes and the Lane rate is shown. If FRL
then the number of lanes is shown and the
lane rate.
The HDCP status is also shown.
Video:
Indicates the Colorimetry, Active and Total Resolution, 3D status, Refresh Rate,
DSC status.
The items in the Lower Status Bar are described in the Table below.
Lower Video Analyzer Status Bar
Type
Status Item
Function
Video
Analyzer
Video Timing
The Lower Status Bar for the Video Analyzer provides status information on the
incoming stream. The incoming stream could be HDMI or DisplayPort.

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4.3 Running Basic Tests on Sink Devices
This Quick Start Guide does not cover detailed procedures for most
common operations. However, the following information will get you
started conducting some of the more common operations for testing
sinks.
1. From the Home Menu, navigate to the Signal Generator screen by
touch selecting the Signal Generator navigation button indicated
below.
2. Navigate to the Format screen to select a format for transmission.
Select the desired Resolution, Frame Rate and Aspect Ratio or
simply select from the list on the right side.

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3. Navigate to the Pattern screen to select a test pattern for
transmission. Select the desired test pattern.

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4. Navigate to the Audio screen to select an audio format for
transmission. Select the desired LPCM configuration or compressed
clip.
4.4 Running Basic Tests on HDMI Source Devices
This Quick Start Guide does not cover detailed procedures for most
common operations. However, the following information will get you
started conducting some of the more common operations for testing
HDMI sources.
1. From the Home Menu, navigate to the Signal Analyzer screen by
selecting the Analyzer navigation button indicated below.

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Analyzer application screen is shown below.

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2. To monitor the HDMI DDC channel, navigate to the ACA application
screen.
The ACA application screen is shown below.

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5Managing the M21 with VPS GUI from a PC
The normal operation of the M21 is through the embedded touch screen
display. However, you can also control the M21 through the external
Video Protocol Suite (VPS) GUI installed on a Windows host PC. The
most important use of the external VPS GUI Manager is to upgrade the
M21 instrument with a new release.
You will have to first download and install the VPS Manager GUI
application on your Windows Host PC. You will then need to connect
your Windows Host PC to the M21 over an Ethernet connection.
The procedures for installing the VPS GUI Manager Application on your
Windows Host PC are provided below.
5.1 Install the M21 VPS GUI Manager Application
This procedure describes how to install the VPS GUI Manager
application on your host PC.
1. Download the VPS Manager GUI application from the Teledyne
LeCroy downloads page:
https://teledynelecroy.com/support/softwaredownload/.
2. Navigate to the M21 software downloads page using the screens
indicated below.