Vizio M21d-H8 User manual

USER MANUAL
Model: M21d-H8
VIZIO 2.1 Channel Sound Bar with Dual Integrated Subwoofers
Please read this guide before using the product.
USER MANUAL
Model: M21d-H8
VIZIO 2.1 Channel Sound Bar with Dual Integrated Subwoofers
Please read this guide before using the product.
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USER MANUAL
Model: M21d-H8
VIZIO 2.1 Channel Sound Bar with Dual Integrated Subwoofers
Please read this guide before using the product.Please read this guide before using the product.

ENG - 2
IMPORTANT SAFETY INSTRUCTIONS
Your Unit is designed and manufactured to operate within dened design limits, and misuse may result in electric shock or re. To prevent your Unit from being damaged,
the following rules should be observed for its installation, use, and maintenance. Please read the following safety instructions before operating your Unit. Keep these
instructions in a safe place for future reference.
• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with a dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampliers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has
two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not t into your outlet, consult an
electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories specied by the manufacturer.
• Use only with the cart, stand, tripod, bracket, or table specied by the manufacturer, or sold with the apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid injury from tip-over.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualied service personnel. Servicing is required when the apparatus has been damaged in any way, such as when the power supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been
dropped.
• To reduce the risk of electric shock or component damage, switch o the power before connecting other components to your Unit.
• Unplug the power cord before cleaning your Unit. A damp cloth is sucient for cleaning. Do not use a liquid or a spray cleaner on your Unit. Do not use abrasive
cleaners.
• Always use the accessories recommended by the manufacturer to insure compatibility.
• When moving your Unit from an area of low temperature to an area of high temperature, condensation may form in the housing. Wait before turning on your Unit to
avoid causing re, electric shock, or component damage.
• Slots and openings in the back and bottom of the cabinet are provided for ventilation. To ensure reliable operation of your Unit and to protect it from overheating, be
sure these openings are not blocked or covered. Do not place your Unit in a bookcase or cabinet unless proper ventilation is provided.
• Never push any object into the slots and openings on your Unit enclosure. Do not place any objects on the top of your Unit. Doing so could short circuit parts causing a
re or electric shock. Never spill liquids on your Unit.
• Do not block the subwoofer ports. Allow for 1-2 inches of space around all sides for ventilation.
• WARNING: Exposure to loud sounds can damage your hearing causing hearing loss and tinnitus (ringing or buzzing in the ears). With continued exposure to loud
noises, ears may become accustomed to the sound level, which may result in permanent damage to hearing without any noticeable discomfort.
• When connected to a power outlet, power is always owing into your Unit. To totally disconnect power, unplug the power cord.
• Do not overload power strips and extension cords. Overloading can result in re or electric shock.

ENG - 3
IMPORTANT SAFETY INSTRUCTIONS
• The wall socket should be located near your Unit and be easily accessible
• Keep your Unit away from moisture. Do not expose your Unit to rain or moisture. If water penetrates into your Unit, unplug the power cord and contact your dealer.
Continuous use in this case may result in re or electric shock.
• Do not use your Unit if any abnormality occurs. If any smoke or odor becomes apparent, unplug the power cord and contact your dealer immediately. Do not try to
repair your unit yourself.
• Avoid using dropped or damaged appliances. If your Unit is dropped and the housing is damaged, the internal components may function abnormally. Unplug the power
cord immediately and contact your dealer for repair. Continued use of your Unit may cause re or electric shock.
• Do not install your Unit in an area with heavy dust or high humidity. Operating your Unit in environments with heavy dust or high humidity may cause re or electric
shock.
• Ensure that the power cord and any other cables are unplugged before moving your Unit.
• When unplugging your Unit, hold the power plug, not the cord. Pulling on the power cord may damage the wires inside the cord and cause re or electric shock. When
your Unit will not be used for an extended period of time, unplug the power cord.
• To reduce risk of electric shock, do not touch the connector with wet hands.
• Insert the remote control batteries in accordance with instructions. Incorrect polarity may cause the battery to leak which can damage the remote control or injure the
operator.
• See the important note and rating located on the back of the unit.
• WARNING: This equipment is not waterproof. To prevent a re or shock hazard, do not place any container lled with liquid near the equipment (such as a vase or
ower pot) or expose it to dripping, splashing, rain, or moisture.
• CAUTION: Danger of explosion or re if batteries are mistreated. Replace only with the same or specied type.
• Do not leave the batteries exposed to direct sunlight for a long period of time with doors and windows closed. Do not disassemble the batteries or dispose of it in re.
• Where the MAINS plug or appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable.
• No naked ame sources,such as lighted candles,should be placed on the apparatus.
• The ventilation should not be impeded by covering the ventilation openings with items,such as newspapers, table-cloths, curtains, etc.
• The equipment shall be used at maximum 35 degree C ambient temperature.
WARNING: To reduce the risk of re or electric shock, do not expose this apparatus to rain or moisture.
CAUTION
RISK OF ELECTRIC
SHOCK DO NOT OPEN
The lighting ash with arrowhead symbol
within an equilateral triangle is intended
to alert the user to the presence of not
isolated dangerous voltage within the
product that may be sucient magnitude
to constitute a risk of shock to persons.
The exclamation point within an
equilateral triangle is intended to alert
the user to the presence of important
operating and servicing instructions in the
literature accompanying the appliance.
Warning: This equipment is a Class II or
double insulated electrical appliance. It
has been designed in such a way that it
does not require a safety connection to
electrical earth.

ENG - 4
TABLE OF CONTENTS
Package Contents......................................................................................................................................5
Controls & Connections ............................................................................................................................6
Using the Remote ......................................................................................................................................11
Proper Placement ......................................................................................................................................12
Mode & Level Settings...............................................................................................................................13
Using Button Combinations......................................................................................................................15
Programming the Sound Bar ....................................................................................................................16
Bluetooth Pairing.......................................................................................................................................17
Using Bluetooth Mode...............................................................................................................................18
Connecting to a Voice Assistant ..............................................................................................................19
Advanced Setup.........................................................................................................................................21
Connecting with HDMI ARC ......................................................................................................................22
Wall-mounting............................................................................................................................................24
Register Your Product................................................................................................................................26
Customer Service ......................................................................................................................................27
Help & Troubleshooting.............................................................................................................................28
Limited Warranty .......................................................................................................................................29
Legal & Compliance ...................................................................................................................................32
Specications ............................................................................................................................................34

ENG - 5
Package Contents
Stereo RCA to
3.5mm Audio Cable
3.5mm to 3.5mm
Audio Cable
Digital Optical
Cable
HDMI Cable
VIZIO
Sound Bar
Wall Mount Template
Optical
Standard
RCA
RCA To 3
5mm
HDMI
Satellite
Cable
User Manual
2 x Wall
Mount Brackets
Remote Control
with 2x AAA Batteries
Quick Setup Steps
Power Cable

ENG - 6
Controls & Connections
HDMI In
HDMI (ARC)
Out to TV
Bottom of Sound Bar
AUX In
Analog Audio In
(Stereo 3.5mm)
AUX VA**
Analog Audio In
(Stereo 3.5mm)
Power Port Digital Optical
Audio In
USB*In
*Supports .WAV and .MP3 le format playback only.
**Only use this port to connect a Voice Assistant device. See Connecting to a Voice Assistant on page 19 for more information.

ENG - 7
Controls & Connections
Front of Sound Bar Right Side
Volume
Increase or decrease the
loudness of the audio.
Bluetooth Input
Hold to pair.
(See ‘Bluetooth Pairing’ for more information.)
Input
Press to change the audio source.
Power
Press to turn on or o.

ENG - 8
First-time Setup
1Choose the best possible connection cable type and connect it to your TV.*
Bottom of Sound Bar
HOME THEATER DISPLAY | QUICK START GUIDE
Installation Guide | Models:
Be sure the TV port is an audio
output, not an audio input.
**Some TVs do not pass through digital audio:
When using the digital input, if there is no audio, try:
• setting the TV output to PCM, or
• connecting directly to your Blu-ray or other source.
*Not all TVs have the audio outputs shown.
To connect the sound bar directly to your
other devices (Blu-ray player, game system,
etc.) see your device’s user manual.
OR OR
BETTER
Digital Optical
Cable**
3.5mm to
RCA cable
GOOD BEST
HDMI ARC
Cable

ENG - 9
Bottom of Sound Bar
2Connect the power cable to the sound bar AC IN as shown.
Plug the power cable into an electrical outlet.
First-time Setup
HOME THEATER DISPLAY | QUICK START GUIDE
Installation Guide | Models:

ENG - 10
3Remove the battery cover by gently
sliding it away from the remote. 4Insert the included batteries and gently slide the battery cover back into place.
5
After turning on both your TV and sound bar, it will automatically begin searching for an active input.*
The LED indicator on the front of the sound bar will begin cycling in different colors through inputs until
an audio source is detected.**
You can press the INPUT button to switch between audio
sources. For example, if you connected your TV to AUX, set the
sound bar to AUX.
*Occurs only during rst-time set up.
**Auto detect function only occurs once when the sound bar is rst powered on. To enable this feature
again, you must do a Factory Reset (see the Using Button Combinations section for more information)
or press and hold the INPUT button for 3 seconds.
When needed, VIZIO recommends replacing the batteries that came with
this remote with two, new Duracell ‘AAA’ alkaline batteries.
First-time Setup
Tip: Pressing the INPUT button will stop the auto
detect function.
To p To p
Input
Power

ENG - 11
Using the Remote
*Press INPUT then Previous to select previous input.
Press INPUT then Next to select Bluetooth input.
Input
Change the input source.*
(Long press for Auto Input Search)
(Long 10 second press to enable/disable AUX VA)
Bluetooth
Press to go to Bluetooth Mode
(Long press for Pairing Mode)
(Long 10 second press to enable/disable BT VA)
Previous
Return to previous track.
(Changes audio settings)
Up/Down
Change to previous/next track
Virtual: X
Turn Virtual: X on or o
EQ Settings
Change equalizer settings
Mute
Mute/unmute.
(Long press to turn LED power indicator and
voice notications on/o)
Bass
Use the Previous/Next buttons to
increase/decrease the bass level
Volume +/-
Increase and decrease volume
Night Mode
Turns Night Mode on or o
Treble
Use the Previous/Next buttons to
increase/decrease the treble level
Power
Turn on or o
OK
Select an option, play or pause.
(Long press for Info)
TruVolume
Turns TruVolume on or o.
Next
Skip to the next track.
(Changes audio settings)

ENG - 12
Proper Placement
For the best surround sound experience, position the sound bar as shown.
The sound bar should be close to ear level (approx. 2-3 ft. off the floor).
Sound bar is centered
below the TV.
(If your TV permits it, you can also slide
the sound bar underneath the TV.)

ENG - 13
Function LED Behavior Description
Input The single LED will show a
color according to the input.
Press the INPUT button on the remote to cycle through the available inputs. Press and
hold the INPUT button for 3 seconds to enable the auto input detect function.Specic
inputs will show a dierent LED color:
• AUX In: Green
• AUX VA: Violet
• Digital Optical: Red
• HDMI In: Yellow
• HDMI ARC: Magenta
• Bluetooth: Blue
• USB: Orange
Bluetooth Pairing Searching: Flash from left
to right continuously.
Press and hold the button on the remote. The sound bar will be discoverable for 15
minutes. You can now search for the sound bar (VIZIO M21d) using your Bluetooth Device.
The sound bar will power down if no device is found.
Note: Set your Bluetooth device into pairing mode prior to the sound bar.
DTS Virtual: X Press the VRT: X button to enable/disable Virtual: X. When ON, all inputs will produce a
virtual sound technology that simulates the eect of having overhead sound. When OFF, all
sources will play back in stereo.
DTS TruVolume Press the TVOL button to enable/disable TruVolume. When ON, TruVolume provides a
consistent and comfortable volume level for a more enjoyable listening experience.
Equalizer Mode
Press the EQ button to toggle between four preset equalizer settings: Music, Movie, Game,
Dialogue.
Note: Movie mode is on by default.
Mode & Level Settings
The LED indicators will behave differently with each function.
On
O
On
O
LED Indicators are located here.
Movie
Music
Game
Dialogue

ENG - 14
Mode & Level Settings
Function LED Behavior Description
Bass Level Three center LEDs
indicate level 0
Press the BASS button and then use the Next/Previous buttons to increase/decrease
the bass level. The LED indicators will move to the right with increasing levels and down
with decreasing levels. Decreasing the bass level to the lowest setting will reduce bass and
subwoofer levels on the bar. This is best for watching TV late at night in a quiet environment.
Treble Level
Three center LEDs
indicate level 0.
Press the TREB button and then use the Next/Previous buttons to increase/decrease the
treble level. The LED indicators will move to the right with increasing levels and down with
decreasing levels.
Night Mode Press the NIGHT button and then use the Next/Previous buttons to enable/disable Night
Mode. When enabled (On), the sound bar will lower bass frequency levels to provide a more
quiet environment (ideal for apartment living and homes with sleeping children).
Auto VA
Press and hold the INPUT button on the remote for 10 seconds to enable/disable AUX VA.
—or—
Press and hold the Bluetooth button on the remote for 10 seconds to enable/disable
Voice Assistant Bluetooth (BT). Refer to Connecting to a Voice Assistant on page 19 for
more information.
Dolby Audio or
DTS signal
Dolby Audio: white LED
DTS signal: amber LED
Dolby Audio and DTS are available on the HDMI ARC, HDMI In, and Digital
Optical audio inputs. When a Dolby Audio or DTS signal is detected, the LED will light up
for 5 seconds before fading away.
On
O
Both
O
AUX
BT

ENG - 15
Using Button Combinations
There are other functions that are triggered by different button combinations on the sound bar.
Function LED Behavior Description
Factory
Reset
All LEDs will ash 3 times
Reset the sound bar to the factory default settings. To perform a Factory Reset,
Press and hold the Bluetooth button and Volume Down (—) buttons for 5 seconds.
Note: This will erase all settings and preferences that you have set.
VIZIO TV Remote
Control
Enable/disable the use of a VIZIO TV remote control to power on and adjust the volume of
the sound bar. To enable/disable this function, Press and hold the Power ( ) and Volume
Up ( + ) buttons for 5 seconds.
Eco Power Mode
When the Eco Power Mode setting is enabled, the sound bar will automatically
power down after a period of inactivity. When disabled, the sound bar will remain
powered on until you turn it o. To enable/disable this function,
Press and hold the
Power
( ) and Volume Down (—) buttons for 5 seconds.
Note: Eco Power mode is disabled by default.
Enabled
Disabled
Enabled
Disabled
Buttons are located here.

ENG - 16
Programming the Sound Bar
You can program your sound bar to accept TV remote IR commands.
Turn o your TV speakers when
programming your sound bar.
Point both the sound bar and TV
remotes towards the front of the
sound bar when programming.
Function LED Behavior Description
Learn Volume Down
Waiting to learn:
Flash from left to right
and back continuously.
Press the OK and Volume Down buttons at the same time to put the sound bar into
learning mode. While the sound bar is in learning mode, press the Volume Down button on
the TV remote control.
Learn Volume Up
Press the OK and Volume Up buttons at the same time to put the sound bar into learning
mode. While the sound bar is in learning mode, press the Volume Up button on the TV
remote control.
Learning conrmed:
All of the LEDs will blink
twice.
Learn Mute
Press the OK and Volume Mute buttons at the same time to put the sound bar into
learning mode. While the sound bar is in learning mode, press the Mute button on the TV
remote control.
HOME THEATER DISPLAY | QUICK START GUIDE
Installation Guide | Models:

ENG - 17
Bluetooth Pairing
To pair the sound bar with a Bluetooth device:
1. Press and hold the Bluetooth button on the sound bar or remote for ve (5) seconds.
2. Search for the sound bar (VIZIO M21d) using your Bluetooth device. For more information, refer to the user
documentation that came with the device.
3. Now you can play audio from your Bluetooth device. Volume can be controlled on both your source device and
the sound bar.
Bluetooth Device Button Located on the Side of Sound Bar
In Bluetooth pairing mode, the LED indicators on the display panel on
the front of the sound bar will light up from left to right continuously.
Once the device is paired, the LED indicators will stop flashing.

ENG - 18
Using Bluetooth Mode
1. Your sound bar supports music streaming from devices with Bluetooth capability.
(Device compatibility will vary, see your device’s documentation for more information.)
2. Once you have paired your source device to the sound bar your device should remain paired. (within range)
3. If the source is changed back to Bluetooth, any paired Bluetooth device will reconnect automatically.
4. If the input is changed, the Bluetooth device will disconnect (will stay connected if Auto VA BT is on).
Reduce the volume levels on your device and
on the sound bar before pressing Play. High
volume levels can damage your hearing.
Your sound bar is not equipped with a
microphone, so it cannot operate as a
hands-free device for a smartphone.
A Bluetooth signal has a range of up to 30 feet. Keep in mind that Bluetooth is a compressed audio
format, so streamed music may lose some integrity when compared to a wired connection.
Try the following if your sound quality is less than optimal:
• If you hear any break-up or disconnect while streaming music from your device, move the source device closer
to the sound bar.
• Be sure that there are no solid obstructions in the line-of-sight between the sound bar and the source device.
• Other wireless devices can affect Bluetooth range, including wireless security cameras, wireless video
baby monitors, cordless phones, and microwave ovens. Turning off or moving these devices may improve
Bluetooth range.
Maximizing Signal
Your sound bar can connect to a Voice Assistant (VA) device through an AUX VA or Bluetooth connection.
Once connected, your sound bar will now act as the VA speaker.

ENG - 19
Connecting to a Voice Assistant
Make sure your sound bar is turned ON and Eco Power setting is
turned OFF. Refer to Eco Power mode on page 15 to disable.
Your sound bar can connect to a Voice Assistant (VA) device through an AUX VA or Bluetooth connection.
Once connected, your sound bar will now act as the VA speaker.
Features and Benets:
• Voice Assistant Dedicated Input: VA can be active on the sound bar even if the sound bar is set to a different
input with audio playing.
• Auto Muting: If playing audio from the sound bar, the VA will play over the original source audio for 10
seconds. If continued after the 10 seconds, the VA audio will mute the original source audio. Once the VA audio
is stopped the original source audio will resume.
Setup Tips:
• If the VA audio is too low, adjust the volume from the VA device.
• If the start of the response from the VA is cut off, enable “Start of Request” from your VA app settings.
• To disable the VA function, press and hold the INPUT button on the remote for 10 seconds to turn on or off.
Refer to Auto VA on page 14 for more information.

ENG - 20
Use a 3.5mm audio cable to connect the AUX VA port on the sound bar to an AUX port on your voice assistant device.
If there is no AUX port on the VA device, use a Bluetooth connection instead.
Benets of this type of connection:
• Simple and easy connection setup.
Using the AUX VA Port to Connect
Connecting to a Voice Assistant
Using Bluetooth to Connect
Press and hold the Bluetooth button on the sound bar or remote for ve (5) seconds. Search for the sound bar (VIZIO
M21d) using your VA device app. For more information, refer to the user documentation that came with the device.
Benets of this type of connection:
• Ability to position the VA device in other locations other than physically connected to the sound bar.
• Ability to place the VA device closer to you so that it can hear commands better.
Connect to the AUX VA port only
3.5mm Audio Cable
OR