Data Video HS-1500T User manual

HS-1500T
HD/SD 4-CHANNEL HD T
PORTABLE VIDEO STUDIO
Instruction Manual

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Table of Contents
FCC COMPLIANCE STATEMENT...........................................................................................................................................4
WARNINGS AND PRECAUTIONS .........................................................................................................................................4
WARRANTY........................................................................................................................................................................5
STANDARD WARRANTY ............................................................................................................................................................... 5
THREE YEAR WARRANTY ............................................................................................................................................................. 5
DISPOSAL ...........................................................................................................................................................................6
CHAPTER 1 INTRODUCTION.........................................................................................................................................7
1.1 FEATURES.................................................................................................................................................................... 7
1.2 SYSTEM DIAGRAM ........................................................................................................................................................ 8
CHAPTER 2 CONNECTIONS AND CONTROLS ................................................................................................................9
2.1 REAR PANEL ................................................................................................................................................................ 9
2.2 SWITCHER KEYBOARD PANEL ........................................................................................................................................ 11
2.3 MONITOR CONTROL PANEL .......................................................................................................................................... 19
CHAPTER 3 SWITCHER OSD MENU ............................................................................................................................21
3.1 START....................................................................................................................................................................... 21
3.1.1 Transition Type .................................................................................................................................................. 21
3.1.2 Transition Speed ................................................................................................................................................ 21
3.1.3 Wipe Effect ........................................................................................................................................................ 22
3.1.4 WIPE Border Size................................................................................................................................................ 22
3.1.5 WIPE Border Color ............................................................................................................................................. 22
3.1.6 BKG Color........................................................................................................................................................... 22
3.2 PIP /SPLIT ................................................................................................................................................................ 22
3.2.1 PIP Source .......................................................................................................................................................... 23
3.2.2 PIP Size (PIP Window Size)................................................................................................................................. 23
3.2.3 Position X ........................................................................................................................................................... 24
3.2.4 Position Y ........................................................................................................................................................... 24
3.2.5 Split Source ........................................................................................................................................................ 24
3.2.6 Border Size ......................................................................................................................................................... 24
3.2.7 Border Color....................................................................................................................................................... 24
3.3 PIP CROP.................................................................................................................................................................. 24
3.4 LUMAKEY .................................................................................................................................................................. 25
3.4.1 Lumakey Source................................................................................................................................................. 25
3.4.2 Mode ................................................................................................................................................................. 25
3.4.3 Cleanup Level..................................................................................................................................................... 26
3.4.4 Transparency ..................................................................................................................................................... 26
3.5 AUDIO ...................................................................................................................................................................... 26
3.5.1 Mute .................................................................................................................................................................. 26
3.5.2 HDMI Input ........................................................................................................................................................ 26
3.5.3 HDMI Group....................................................................................................................................................... 26
3.5.4 Level................................................................................................................................................................... 26
3.5.5 Tally Mode ......................................................................................................................................................... 26
3.6 USER MEMS .............................................................................................................................................................. 27
3.6.1 Load Memory..................................................................................................................................................... 27
3.6.2 Save Memory..................................................................................................................................................... 27
3.7 SETUP....................................................................................................................................................................... 27

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3.7.1 PGM Out Res...................................................................................................................................................... 28
3.7.2 MV Out Res........................................................................................................................................................ 28
3.7.3 Save Setup ......................................................................................................................................................... 29
3.7.4 Factory Default .................................................................................................................................................. 29
3.7.5 Language ........................................................................................................................................................... 29
3.7.6 MB and KBD Software ....................................................................................................................................... 29
3.8 CAMERA ................................................................................................................................................................... 29
3.8.1 Camera CH. Setup.............................................................................................................................................. 30
3.8.2 PTC-150T-01/02/03 ........................................................................................................................................... 30
Camera Info.................................................................................................................................................................................... 30
Video .............................................................................................................................................................................................. 30
Operator......................................................................................................................................................................................... 31
CHAPTER 4 MONITOR................................................................................................................................................32
4.1 MENU OPTIONS........................................................................................................................................................ 32
4.1.1 MAIN ADJUST .................................................................................................................................................... 33
4.1.2 COLOR................................................................................................................................................................ 33
4.1.3 Information........................................................................................................................................................ 33
4.1.4 Special Function................................................................................................................................................. 33
4.1.5 Factory Reset ..................................................................................................................................................... 34
4.2 FIRMWARE UPDATE PROCEDURE .................................................................................................................................... 34
CHAPTER 5 APPLICATIONS.........................................................................................................................................35
5.1 PLACING A LOGO ON THE VIDEO USING THE LUMAKEY FUNCTION .......................................................................................... 35
5.2 CONNECTING PTC-150T CAMERAS ............................................................................................................................... 35
CHAPTER 6 APPENDICES............................................................................................................................................37
APPENDIX 1TALLY OUTPUTS................................................................................................................................................. 37
APPENDIX 2FIRMWARE UPGRADE.......................................................................................................................................... 38
APPENDIX 3FREQUENTLY-ASKED QUESTIONS........................................................................................................................... 40
APPENDIX 4TIPS FOR ESTABLISHING AN HDBASETCOMPLIANCE ENVIRONMENT AND ETHERNET CABLE SELECTION............................... 41
APPENDIX 5DIMENSIONS ..................................................................................................................................................... 44
APPENDIX 6SPECIFICATIONS ................................................................................................................................................. 45
SERVICE AND SUPPORT....................................................................................................................................................47
Disclaimer of Product & Services
The information offered in this instruction manual is intended as a guide only. At all times, Datavideo Technologies will try
to give correct, complete and suitable information. However, Datavideo Technologies cannot exclude that some information
in this manual, from time to time, may not be correct or may be incomplete. This manual may contain typing errors,
omissions or incorrect information. Datavideo Technologies always recommend that you double check the information in
this document for accuracy before making any purchase decision or using the product. Datavideo Technologies is not
responsible for any omissions or errors, or for any subsequent loss or damage caused by using the information contained
within this manual. Further advice on the content of this manual or on the product can be obtained by contacting your local
Datavideo Office or dealer.

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FCC Compliance Statement
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired
operation.
Warnings and Precautions
1. Read all of these warnings and save them for later reference.
2. Follow all warnings and instructions marked on this unit.
3. Unplug this unit from the wall outlet before cleaning. Do not use liquid or aerosol cleaners. Use a
damp cloth for cleaning.
4. Do not use this unit in or near water.
5. Do not place this unit on an unstable cart, stand, or table. The unit may fall, causing serious damage.
6. Slots and openings on the cabinet top, back, and bottom are provided for ventilation. To ensure safe
and reliable operation of this unit, and to protect it from overheating, do not block or cover these
openings. Do not place this unit on a bed, sofa, rug, or similar surface, as the ventilation openings
on the bottom of the cabinet will be blocked. This unit should never be placed near or over a heat
register or radiator. This unit should not be placed in a built-in installation unless proper ventilation
is provided.
7. This product should only be operated from the type of power source indicated on the marking label
of the AC adapter. If you are not sure of the type of power available, consult your Datavideo dealer
or your local power company.
8. Do not allow anything to rest on the power cord. Do not locate this unit where the power cord will
be walked on, rolled over, or otherwise stressed.
9. If an extension cord must be used with this unit, make sure that the total of the ampere ratings on
the products plugged into the extension cord do not exceed the extension cord rating.
10. Make sure that the total amperes of all the units that are plugged into a single wall outlet do not
exceed 15 amperes.
11. Never push objects of any kind into this unit through the cabinet ventilation slots, as they may touch
dangerous voltage points or short out parts that could result in risk of fire or electric shock. Never
spill liquid of any kind onto or into this unit.
12. Except as specifically explained elsewhere in this manual, do not attempt to service this product
yourself. Opening or removing covers that are marked “Do Not Remove” may expose you to
dangerous voltage points or other risks, and will void your warranty. Refer all service issues to
qualified service personnel.
13. Unplug this product from the wall outlet and refer to qualified service personnel under the following
conditions:
a. When the power cord is damaged or frayed;
b. When liquid has spilled into the unit;
c. When the product has been exposed to rain or water;
d. When the product does not operate normally under normal operating conditions. Adjust only
those controls that are covered by the operating instructions in this manual; improper

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adjustment of other controls may result in damage to the unit and may often require extensive
work by a qualified technician to restore the unit to normal operation;
e. When the product has been dropped or the cabinet has been damaged;
f. When the product exhibits a distinct change in performance, indicating a need for service.
Warranty
Standard Warranty
•Datavideo equipment are guaranteed against any manufacturing defects for one year from the
date of purchase.
•The original purchase invoice or other documentary evidence should be supplied at the time of
any request for repair under warranty.
•The product warranty period begins on the purchase date. If the purchase date is unknown,
the product warranty period begins on the thirtieth day after shipment from a Datavideo
office.
•All non-Datavideo manufactured products (product without Datavideo logo) have only one
year warranty from the date of purchase.
•Damage caused by accident, misuse, unauthorized repairs, sand, grit or water is not covered
under warranty.
•Viruses and malware infections on the computer systems are not covered under warranty.
•Any errors that are caused by unauthorized third-party software installations, which are not
required by our computer systems, are not covered under warranty.
•All mail or transportation costs including insurance are at the expense of the owner.
•All other claims of any nature are not covered.
•All accessories including headphones, cables, and batteries are not covered under warranty.
•Warranty only valid in the country or region of purchase.
•Your statutory rights are not affected.
Three Year Warranty
•All Datavideo products purchased after July 1st, 2017 are qualified for a
free two years extension to the standard warranty, providing the product is
registered with Datavideo within 30 days of purchase.
•Certain parts with limited lifetime expectancy such as LCD panels, DVD
drives, Hard Drive, Solid State Drive, SD Card, USB Thumb Drive, Lighting, Camera module, PCIe
Card are covered for 1 year.
•The three-year warranty must be registered on Datavideo's official website or with your local
Datavideo office or one of its authorized distributors within 30 days of purchase.

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Disposal
For EU Customers only - WEEE Marking
This symbol on the product or on its packaging indicates that this product must not
be disposed of with your other household waste. Instead, it is your responsibility
to dispose of your waste equipment by handing it over to a designated collection
point for the recycling of waste electrical and electronic equipment. The separate
collection and recycling of your waste equipment at the time of disposal will help
to conserve natural resources and ensure that it is recycled in a manner that
protects human health and the environment. For more information about where
you can drop off your waste equipment for recycling, please contact your local city office, your
household waste disposal service or the shop where you purchased the product.
CE Marking is the symbol as shown on the left of this page. The letters "CE" are
the abbreviation of French phrase "Conformité Européene" which literally means
"European Conformity". The term initially used was "EC Mark" and it was
officially replaced by "CE Marking" in the Directive 93/68/EEC in 1993. "CE
Marking" is now used in all EU official documents.

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Chapter 1 Introduction
Datavideo’s HS-1500T Hand-carry Mobile Switcher, the cutting-edge technology that supports Full HD
1080P, is designed for broadcast of live events and TV programs with a need for mixing a wide variety
of video and audio sources. The HS-1500T is a highly valuable solution for religion, education and AV
markets.
With its built-in HDBaseT technology, the HS-1500T is able to accept the Full HD 1080p video format
from three PTC-150T HDBaseT PTZ Cameras through three individual CAT-6 cables. Each cable runs up
to 100 meters. While shooting in the field, the PoE feature serves to power the three PTC-150T devices.
The PoE feature can also be used in the field where long-distance transmission is required.
The HS-1500T also features an audio mixer with balance XLR inputs and unbalance RCA audio inputs;
more features include PIP, WIPE Generator and Tally.
The HS-1500T has a Joystick that allows the user to Pan, Tilt and Zoom the PTC-150T camera. In addition,
the HS-1500T also allows the user to adjust the PTC-150T’s Focus, IRIS and other settings.
1.1 Features
•Full HD 1080P Video Format
•Built-in HDBaseT technology to connect three PTC-150T HDBaseT PTZ Cameras through three CAT-
6 (or higher) cables with each cable running up to 100 meters.
•PoE technology to Power the PTC-150Ts
•Joystick Pan, Tilt and Zoom with speed control
•Iris, Focus, and Gain Control as well as other PTC-150T camera functions
•4 Video Inputs (RJ-45 x 3 + HDMI x 1)
•3 Video Outputs (HDMI x 3)
•Audio inputs: XLR Analogue x 2 + RCA Analogue (L/R) x 2
•Versatile Mix Effects: PIP, WIPE, Mix and Fades
•Tally Output
•One 17.3-inch monitor with a resolution of 1920x1080

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1.2 System Diagram

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Chapter 2 Connections and Controls
2.1 Rear Panel
1 HDBaseT Port x 3 6 MIC IN – CH1/CH2
2 HDMI Video IN 7 Audio Input – Stereo RCA (Left/Right)
3 HDMI Video OUT x 3 8 DC IN
4 USB F/W Upgrade Port 9 Power Switch
5 TALLY Output Port
1. HDBaseT IN
The HDBaseT ports connect three HDBaseT cameras via
three CAT-6 Ethernet cables. The camera videos will be
displayed on the respective Multiview quadrants.
2. HDMI Video Input
The HDMI Video Input port connects an additional video
source device and the video will be displayed on the
fourth quadrant.
3. HDMI Video Output 1 – 3
Connect to a monitor for Program OUT display or other
HDMI destination devices.
4. USB F/W Upgrade Port
USB port for firmware upgrade. Please refer to the
Firmware Upgrade section for details.
1
3
4
5
6
8
9
2
7

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5. TALLY Output Port
Sends Red and Green tally signals to each channel.
Red indicates On-Air, and Green indicates next camera
source. Tally output port can connect other Datavideo
peripheral devices such as ITC-100, ITC-200, AM-100 or
other monitor models, allowing the peripheral device to
communicate with the HS-1500T or send tally signal to be
displayed on the monitor.
6. Audio Input – XLR Balanced (CH1/CH2)
Two channels of XLR Balanced Audio Input.
7. Audio Input – Stereo RCA (Left/Right)
Connects unbalanced analog audio source (stereo).
Two Channels of unbalanced MIC input.
CH L
CH R
States
MIC1
MIC2
MIC 1(L) and MIC 2(R) are
respectively connected to left and
right channels.
MIC1
NC*
When MIC 1 is connected to the
left channel and MIC 2 is not
connected to the right channel, the
right channel switch will replicate
MIC 1 signal onto the right channel
thus both channels are MIC 1 input
signals.
NC*
MIC2
When no MIC signal is connected
to the left channel and only MIC 2
is connected to the right channel,
MIC 2 signal will not be replicated
onto the left channel which will
thus be grounded.
NC*
NC*
When no MIC is connected to the
two channels, the left channel
switch will ground the left channel
to prevent noise from being
generated.
*No Connection

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8. Power Switch
Power switch ON/OFF
9. DC IN
DC in socket connects the supplied 48V / 190W PSU. The
connection can be secured by screwing the outer
fastening ring of the DC In plug to the socket.
2.2 Switcher Keyboard Panel
Switcher Settings
Volume Control
Menu browsing buttons
Volume adjustment sliders
RESET button
Headphone jack
User Memory
Audio meter
Shift button
Headphone volume control knob
Transition Effects Camera Presets
WIPE transition effect selection
Channel Selection Buttons
MIX Enable/Disable button
Preset Buttons
WIPE transition effect Enable/Disable
STR Button
PIP/Keyer
FOCUS / IRIS / White Balance
Enable/Disable buttons for PIP Keyer
Focus Adjustment
Volume
Control
Program/Preview
Transition
Control
Switcher
Settings
PIP/Keyer
Transition
Effects
Camera
Presets
Focus / IRS /
White Balance
PAN/TILT/ZOOM

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Luma Keyer Enable/Disable buttons
IRIS Adjustment
Split Activation button
White Balance
Transition Control
PAN / TILT / ZOOM
T-Bar (manual transition)
Speed Selection Buttons
CUT button
Joystick – PAN/TILT
AUTO transition button
VR Knob – ZOOM
Program/Preview
LOCK Button
Program row
Camera MENU Control
Preview row
MENU Button
ENTER Button
Switcher Settings
Menu browsing buttons
Press the MENU button to gain access to the menu; use
the up/down/left/right arrow buttons
to browse
through the menu and press ENTER button to select an
option or MENU button again to exit.
Reset Button
Mode 1 – When in Menu Select mode (left hand column
of the OSD menu), pressing the 'Reset' button will reset
all current menu items to their factory defaults.
Mode 2 – When in a Sub-Menu, pressing the 'Reset'
button will reset the current menu line only.
User Memory
User Memory buttons 1-3
allow the user to quickly
recall and load previously saved switcher settings with
a single button press. This includes PIP and Keyer
settings. See the User Memory
section for more
information.
Shift Button
Pressing the Shift button will switch USER 1-3 buttons
to USER 4-6 buttons

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Transition Effects
WIPE Transition Effect Selection
Each Wipe button consists of black and white colors.
The white represents the current Program image and
the black represents the WIPE-IN image. The HS-1500T
provides 3 WIPE presets with the Horizontal and
Vertical
WIPEs selectable on the control panel. The
Center WIPE can be selected from the menu (Start).
Pressing the REV button reverses the direction of the
WIPE.
MIX Enable/Disable Button
A MIX, also known as a dissolve, is a transition wherein
the Program video is replaced by the Preview video at a
smooth rate, and at the same time. Pressing the MIX
button enables the MIX
transition effect and
automatically disables the WIPE button. To trigger the
MIX effect, simply press the AUTO button or move the
T-Bar.
WIPE Transition Effect Enable/Disable Button
Pressing the WIPE button enables the WIPE transition
effect after which the WIPE
transition effect can be
selected. To trigger the WIPE transition effect, simply
press the AUTO button or move the T-Bar.
Wipe Transition Effect, Border and Position settings
can be found in the OSD menu (Start).
PIP / Keyer
Enable/Disable Buttons for PIP Keyer
Picture in Picture puts the selected Sub Video Source in
a window on the Main Program view, with control over
window size and placement. For PIP configuration,
please refer to the PIP section.
PIP PGM: Shows the configured PIP on the PGM output
after transition, however, the PIP cannot be previewed
on the QUAD split view display.
PIP PVW: Sets the configured PIP on the next transition.
Holding down this button allows selection of the PIP
source
from the Preview Source row. The selected
source button will flash.

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Luma Keyer Enable/Disable Buttons
Luma Key PGM: Shows the luma key source on the PGM
output and enables the luma key effect, however, the
luma key effect cannot be previewed on the QUAD split
view display.
Luma Key PVW: Enables luma key source for the PGM
output on the next transition. Holding down this button
allows selection of the luma key source
from the
Preview Source row. The selected source button will
flash.
Please refer to Section 3.4, the Luma Key section, for
luma key configurations.
Split Activation Button
After activating the PIP window, pressing the Split
button will split the PROGRAM output display into two
with the program out view on the left and the PIP view
on the right.
To select the Split source, i.e. the program out view,
please see Section 3.2.5.
Transition Control
T-Bar (Manual Transition)
T-Bar is used for manual transition. The T-Bar can be
either all the way up, all the way down or anywhere in
between. When the T-Bar is pushed to halfway between
the topmost position and the bottommost position, the
keyboard functions will be disabled.
PVW and PGM
views can be transitioned at your
preferred speed. To include the transition effect, simply
press the WIPE or MIX
button, after which the
Transition Effect will be triggered as you move the T-
Bar.
CUT Button
Pressing the Cut button performs i
mmediate manual
switch between PVW and PGM views without the
transition effect.
AUTO Button
Pressing the Auto button automatically transitions PVW
and PGM views according to the selected speed and the
configured transition effect.

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Program / Preview Outputs
Program Source Row
Pressing the number buttons along the PROGRAM row selects a video source for the PGM view.
BKG button: Pressing the BKG button will switch the background to a Matte background. The BKG
color can be configured on the OSD MENU and the available color options are listed as follows:
•White
•Yellow
•Cyan
•Green
•Magenta
•Red
•Blue
•Black
BLK button: Pressing the BLK button places a black screen on the PROGRAM view.
Preview Source Row
Pressing the number buttons along the PREVIEW row selects a video source.
BKG button: Pressing the BKG button will set the Preview OUT to a Matte background, which will be
displayed on the Program OUT monitor upon the next transition. The BKG color can be configured
on the OSD MENU and the available color options are listed as follows:
•White
•Yellow
•Cyan
•Green
•Magenta
•Red
•Blue
•Black
BLK button: Pressing the BLK button sets the Preview OUT to a black screen.

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Volume Control
Volume Adjustment Sliders
Sliders to control audio levels for the Main audio mixer.
Headphone Volume: Audio volume of the connected
headphone.
Master: Main audio output volume.
Headphone Jack
Headphone jack accepts the mini jack plug of the stereo
headphone type. The headphone volume is controlled
by the Headphone volume adjustment slider.
MASTER OUT Meter
The LED style meters show the audio signal strength at
the Main Program Audio Output. The signal strength is
determined by the level set with the Master OUT slider.
The LEDs turn red at +10
dB to indicate clipping
distortion.
Audio
Volume (dBV)
-20 -10 -8 -4 0 +4 +8 +10
LED Color
G
G
G
G
G
Y
Y
R
Range (dBV)
-20
-12
-11
-9.5
-8.5
-6.5
-5.5
-3
-2
1
2
5.5
6.5
8
9+
G: Green Y: Yellow R: Red
Camera Presets
Channel Selection Buttons
To control or set up a connected camera, first select it
by pressing these buttons. The selected channel button
will be turned ON.
Preset Buttons
These buttons may be used to store up to four camera
positions for each camera. Each button corresponds to
one stored camera position. The button LED will be
turned ON when selected.

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STR Button
Pressing this button enters the HS-1500T into STORE
MODE. When activated, this allows the current camera
position to be stored in a chosen Channel Preset
Button. Press again to exit STORE MODE.
FOCUS / IRIS / White Balance
Focus Adjustment
To manually control the FOCUS setting, first press the
MANUAL button to enter the manual mode. The
button LED will be turned ON to indicate that the
manual mode is enabled.
The FOCUS dial can then be rotated to set the focus.
If the MANUAL button is disabled (OFF), the camera
will be in AUTO FOCUS mode.
IRIS Adjustment
To manually control the IRIS setting, first press the
MANUAL button to enter the manual mode. The
button LED will be turned ON to indicate that the
manual mode is enabled.
The IRIS dial can then be rotated to set the exposure.
If the MANUAL button is disabled (OFF), the camera
will be in AUTO IRIS mode.
White Balance
Push Auto
Push once to automatically
adjust the camera white
balance setting.
MWB (Manual White Balance)
Push to enable manual white balance setting.
ATW (Force Automatic White Balance)
Push to enable automatic white balance setting.
PAN / TILT / ZOOM
Speed Selection Buttons
The speed at which the selected camera moves can be
chosen by pressing one of the three speed buttons.

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Joystick – PAN / TILT
PAN – Move the joystick left or right to pan the
selected PTZ camera from left to right or vice versa.
TILT – Move the joystick up or down to tilt the selected
PTZ camera up or down.
Note: Before attempting to use the joystick to PAN or
TILT a selected camera, first make sure the LOCK
button is not enabled. If the LOCK button LED is ON,
the joystick is locked; press the LOCK button to unlock
the joystick.
VR Knob – ZOOM
ZOOM – Twist the joystick clockwise (to the right) or
anti-clockwise (to the left) to have the selected PTZ
camera zoom in or out.
Note: Make sure the LOCK button is not enabled. If the
LOCK button LED is ON, the joystick is locked; press the
LOCK button to unlock the joystick.
LOCK Button
When enabled, the joystick will be in the lock state. To
resume its functional status, simply press the button
once to unlock the joystick.
Camera MENU Control
MENU Button
Press once to open the OSD MENU of the connected
PTC-150T on the monitor screen. Use the P/T joystick
to move between options. To select, simply press the
ENTER button. Please see the PTC-150T instruction
manual for details of the menu operation.
Note: Pressing the menu button again will not exit the
OSD MENU. Select the ESCAPE option on the OSD
MENU to exit.
ENTER Button
Press this button to select a menu option after the
camera OSD menu is opened.

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2.3 Monitor Control Panel
Power
Switches the HS-1500T Monitor Power ON / OFF
BLUE
Press this button to eliminate the red and green component of input
signals. Only the blue component of an input is displayed on the
screen. This allows adjustments of chroma and phase. (Phase
adjustment is effective with NTSC signals).
PTN
When pressed displays internally generated SMPTE 75% Colour Bars.
Press again to return to the previously selected video input.
ZOOM
This feature is designed for use with HD-SDI and HDMI sources above
720p resolution. Press this button to zoom in to the video on the
display. This is strictly a zooming function and does not alter the native
aspect ratio of the source pixels to fill the screen.
The ZOOM
button allows you to toggle the Pixel Zoom feature
between zoom x1, x2, x4 and x8.
Menu Navigation Buttons
Display and navigate the setup menus. See Monitor Menu Options for
more details.

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Aspect Ratio Button
Sets the Aspect Ratio to 16:9 / 4:3
Volume Control
Adjusts the speaker / headphone volume up / down.
MUTE
Mutes the audio from the internal speakers or headphone socket.