Brand: YAMAHA
Category: Audio/Video
Document Type: Manual
Language: EN
Manual for SR-B20A
Uploaded: Nov. 21, 2025, 7:18 p.m.
Manual Publish Date: 2020-08-01
Warranty Information
No specific warranty information is detailed in this manual.
Selecting an input source: Press the TV, OPTICAL, or BLUETOOTH button on the remote to select the desired audio input.
Adjusting volume: Use the VOLUME (+/-) buttons on the remote to increase or decrease the volume. The number of glowing indicators shows the volume level.
Muting audio: Press the mute button on the remote to temporarily mute the audio. Press it again or use the VOLUME buttons to unmute.
Sound modes: Select STANDARD, MOVIE, GAME, or STEREO modes via the remote to tailor the sound to your content.
Sound settings: Enable 3D SURROUND for immersive audio, CLEAR VOICE to enhance dialogue clarity, and BASS EXT to boost bass levels.
Bluetooth playback: Press the BLUETOOTH button to pair your device. Once connected, audio from the Bluetooth device can be played through the sound bar.
Troubleshooting and error codes
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Input source not selected | Select the correct input source. |
| No sound | Mute function is active | Cancel the mute function. |
| No sound | Volume is too low | Turn up the volume. |
| No sound | Power cord not connected securely | Ensure the power cord is securely connected. |
| No sound | Input jack not connected to another input jack | Connect the sound bar's input jack to the AV device's output jack. |
| No sound | Unsupported audio signal | Change the digital audio output setting to a supported format. |
| No sound | HDMI Control function disabled (for ARC) | Enable the HDMI Control function or connect via optical cable. |
| No sound | TV audio output set to built-in speakers | Set the TV's audio output destination to an option other than the TV's built-in speakers. |
| No sound from subwoofer | Playback source lacks subwoofer signals | Try content with subwoofer channels. |
| No sound from subwoofer | Subwoofer volume too low | Turn up the subwoofer volume. |
| Volume decreases when turned on | Automatic Volume Adjustment activated | Turn up the volume if necessary. |
| No surround effect | Stereo playback selected | Select surround playback. |
| No surround effect | Volume too low | Turn up the volume. |
| No surround effect | TV/AV device set to 2-channel audio | Change setting to output Bitstream audio. |
| No surround effect | Sound also heard from TV speakers | Turn down TV volume. |
| No surround effect | Listening too close to sound bar | Listen at a distance. |
| Noise is heard | Sound bar too close to other devices | Move devices away from the sound bar. |
| Cannot connect to Bluetooth device | Bluetooth not selected as input | Select Bluetooth as input source. |
| Cannot connect to Bluetooth device | Sound bar too far from Bluetooth device | Move device closer. |
| Cannot connect to Bluetooth device | Electromagnetic interference | Avoid using near devices emitting electromagnetic waves. |
| Cannot connect to Bluetooth device | Bluetooth device does not support A2DP | Use a device that supports A2DP. |
| Cannot connect to Bluetooth device | Connection profile incorrect | Delete profile and reconnect. |
| Cannot connect to Bluetooth device | Passkey is not "0000" | Use a device with passkey "0000". |
| Cannot connect to Bluetooth device | Already connected to another device | Terminate existing connection and connect new device. |
| Cannot connect to Bluetooth device | Bluetooth function disabled | Enable the Bluetooth function. |
| No sound from Bluetooth device | Bluetooth device volume too low | Raise volume on Bluetooth device. |
| No sound from Bluetooth device | Bluetooth not selected as input | Select Bluetooth as input source. |
| No sound from Bluetooth device | Playback not active on Bluetooth device | Perform playback on Bluetooth device. |
| No sound from Bluetooth device | Audio output destination not set to sound bar | Select sound bar as output destination. |
| No sound from Bluetooth device | Connection terminated | Connect again. |
| No sound from Bluetooth device | Sound bar too far from Bluetooth device | Move device closer. |
| No sound from Bluetooth device | Electromagnetic interference | Avoid using near devices emitting electromagnetic waves. |
| No sound from Bluetooth device | Playback on another Bluetooth device | Stop current playback and play on the other device. |
| App cannot detect sound bar | Unsupported app being used | Use Sound Bar Remote app only. |
| App cannot detect sound bar | Bluetooth function disabled on mobile device | Enable Bluetooth function on mobile device. |
| App cannot detect sound bar | Location information disabled (Android) | Allow location information access for the app. |