Vizio V21-H8 User Manual (English)

Questions and Answers:

S
Scott LoganJul 29, 2025
What to do if there is no sound on Vizio V21-H8?
- S
  Shaun BerryJul 30, 2025
  If your Vizio Speaker System has no sound, here are a few things to try: First, increase the volume using the VOLUME UP button on the remote or the sound bar itself. Also, make sure the sound bar isn't muted by pressing the MUTE button on the remote. Try selecting a different input source by pressing INPUT on the remote or sound bar. If you're using the Digital Optical input, set your TV output to PCM or connect directly to your Blu-ray player or source. For digital inputs, ensure the source outputs PCM if the input LEDs are flashing. Check your TV's audio output setting and set it to FIXED or STANDARD instead of VARIABLE. Finally, if using Bluetooth, ensure the volume on your source device is turned up and the device isn't muted.
A
Ashley GreerAug 6, 2025
How to fix Vizio V21-H8 remote not working?
- S
  Scott RochaAug 6, 2025
  If your Vizio Speaker System remote isn't working, try replacing the batteries with new ones. Also, make sure you are pointing the remote directly at the center of the sound bar when pressing a button.
C
Cindy ReevesAug 13, 2025
What to do if Vizio V21-H8 Speaker System has no power?
- J
  Joseph WellsAug 13, 2025
  If your Vizio Speaker System has no power, first press the POWER button on the remote control or on the top of your sound bar. Then, ensure the power cord is securely connected. Finally, plug a different device into the electrical outlet to verify that the outlet is working correctly.
M
Martin BeckerAug 20, 2025
Why does my Vizio Speaker System buzz or hum?
- T
  Tyler FloresAug 20, 2025
  If you hear buzzing or humming from your Vizio Speaker System, ensure all cables and wires are securely connected. Try connecting a different source device (TV, Blu-ray player, etc.) to see if the buzzing persists; if it doesn't, the problem may be with the original device. You can also try connecting your device to a different input on the sound bar.

Vizio V21-H8 Specifications

General

Wi-Fi	-
USB port	Yes
Headphone outputs	1
Connectivity technology	Wired & Wireless
Sustainability certificates	RoHS
Audio decoders	DTS Digital Surround, DTS TruVolume, DTS Virtual:X
RMS rated power	- W
Audio output channels	5.1 channels
Product color	Black
Virtual assistant	Amazon Alexa & Google Assistant
Audio formats supported	WAV
Cables included	HDMI
Subwoofer location	Built-in
Subwoofer sensitivity	96 dB
Woofer diameter (subwoofer)	5 \
Package depth	375.9 mm
Package width	1000.8 mm
Package height	274.3 mm
Package weight	Weight of the packaged product in gram.
AC input voltage	100-240 V
AC input frequency	50/60 Hz
Power consumption (typical)	60 W

Weight and Dimensions

Depth	81.3 mm
Width	914.4 mm
Height	57.9 mm
Soundbar weight	2100 g

Summary

Important Safety Instructions

Package Contents

Controls & Connections

Sound Bar Back Panel Connections

Details ports on the back of the sound bar for power and audio input.

Sound Bar Top Panel Controls

Describes buttons on the top for power, input selection, and volume adjustment.

Subwoofer Back Panel Connections

Identifies the power port and button on the subwoofer's rear.

First-time Setup

Connection Cable Options

Explains options for connecting the sound bar to a TV using HDMI, Optical, or Analog.

Sound Bar Power Connection

Instructions for connecting the sound bar to an electrical outlet.

Subwoofer Power and Linking

Guides on connecting the subwoofer's power and its automatic linking process.

Remote Setup and Input Detection

Covers inserting batteries, remote functions, and auto input detection.

Using the Remote

Proper Placement

Mode & Level Settings

Input and Bluetooth Modes

Explains input selection, Bluetooth pairing, and mode indicators.

Audio Processing Modes (DTS)

Details TruVolume, Virtual:X, and Equalizer presets for sound customization.

Level Adjustments (Bass, Subwoofer, Treble)

Guides on adjusting bass, subwoofer, and treble levels using the remote.

Voice Assistant and Audio Format Detection

Covers Auto VA setup and detection of Dolby Audio format.

Using Button Combinations

Factory Reset and VIZIO Remote Control

Instructions for factory reset and enabling VIZIO TV remote control.

Eco Power Mode Management

Explains how to enable or disable the Eco Power mode for automatic shutdown.

Programming the Sound Bar

Learning TV Remote Commands

Details how to program the sound bar to respond to TV remote commands for volume and mute.

Bluetooth Pairing

Using Bluetooth Mode

Connecting to a Voice Assistant

Voice Assistant Features and Setup Tips

Outlines benefits, dedicated input, auto muting, and setup tips for voice assistants.

Voice Assistant Connection Methods

Explains connecting via 3.5mm AUX cable or Bluetooth for voice assistant integration.

Advanced Setup

Connecting with HDMI ARC

Understanding HDMI ARC

Explains the functionality of HDMI ARC for audio transmission.

HDMI ARC Connection Steps

Provides step-by-step instructions for connecting the sound bar via HDMI ARC.

Connecting a Subwoofer

Subwoofer Pairing and Re-linking

Details the process for wirelessly pairing or re-linking the subwoofer to the sound bar.

Wall-mounting

Wall Bracket Installation

Instructions for using the template and attaching mounting brackets to the wall.

Securing Sound Bar to Wall Mount

Guides on attaching the sound bar to the installed wall-mount brackets.

Register Your Product

Help & Troubleshooting

Troubleshooting Power and Sound Issues

Solutions for problems like no power or no sound output from the device.

Troubleshooting Remote and Connectivity Issues

Addresses troubleshooting for non-responsive remotes and buzzing/humming noises.

Limited Warranty

Warranty Terms and Coverage

Details the duration, coverage, and obligations for obtaining warranty service.

Warranty Exclusions and Limitations

Lists what is not covered by the warranty and legal disclaimers.

Arbitration and Legal Rights

Explains binding arbitration, class action waivers, and consumer rights.

Legal & Compliance

Regulatory Compliance Statements (FCC/IC)

Information regarding FCC, RF exposure, and IC compliance for the device.

Product Disposal and Software Licenses

Covers battery disposal, software licenses, and export regulations.

Specifications

Related product manuals

Vizio V21-H8 User Manual

Table of Contents

Questions and Answers:

Vizio V21-H8 Specifications

Summary

Important Safety Instructions

Package Contents

Controls & Connections

Sound Bar Back Panel Connections

Sound Bar Top Panel Controls

Subwoofer Back Panel Connections

First-time Setup

Connection Cable Options

Sound Bar Power Connection

Subwoofer Power and Linking

Remote Setup and Input Detection

Using the Remote

Proper Placement

Mode & Level Settings

Input and Bluetooth Modes

Audio Processing Modes (DTS)

Level Adjustments (Bass, Subwoofer, Treble)

Voice Assistant and Audio Format Detection

Using Button Combinations

Factory Reset and VIZIO Remote Control

Eco Power Mode Management

Programming the Sound Bar

Learning TV Remote Commands

Bluetooth Pairing

Using Bluetooth Mode

Connecting to a Voice Assistant

Voice Assistant Features and Setup Tips

Voice Assistant Connection Methods

Advanced Setup

Connecting with HDMI ARC

Understanding HDMI ARC

HDMI ARC Connection Steps

Connecting a Subwoofer

Subwoofer Pairing and Re-linking

Wall-mounting

Wall Bracket Installation

Securing Sound Bar to Wall Mount

Register Your Product

Help & Troubleshooting

Troubleshooting Power and Sound Issues

Troubleshooting Remote and Connectivity Issues

Limited Warranty

Warranty Terms and Coverage

Warranty Exclusions and Limitations

Arbitration and Legal Rights

Legal & Compliance

Regulatory Compliance Statements (FCC/IC)

Product Disposal and Software Licenses

Specifications

Related product manuals