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Audio noise., No audio or low audio with a home theater system

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Press the ACTION MENU button, then select [Speakers] - [TV speakers]. If it is set to [Audio system], the TV speakers only output key tones or system sounds. Related topics No audio or low audio with a home theater system. [127] Troubleshooting | Sound Audio noise. Make sure that the antenna is connected using a high quality 75-ohm coaxial cable. Keep the antenna cable away from other connecting cables. To avoid TV interference, make sure to use an undamaged antenna cable. Related topics Distorted sound. [128] Troubleshooting | Sound No audio or low audio with a home theater system. Press the ACTION MENU button, then select [Speakers] - [Audio system]. Set [Headphone/Audio out] to [Audio out (Fixed)] in the [Sound] setting. Depending on your model, if [Speakers] is set to [TV speakers] and [Hi Res upscaling (DSEE HX)] is set to [Auto], DIGITAL AUDIO OUT (OPTICAL) is muted. Set [Digital audio out volume] to Max in the [Sound] setting. When using HDMI input with Super Audio CD or DVD-Audio, DIGITAL AUDIO OUT (OPTICAL) may not provide an audio signal. Related topics Audio noise. Connecting an audio system 87

Section	Page
Sony Television Help Guide	1
Table Of Contents	7
Introducing Android TV	13
Downloading apps from the Google Play	13
Moving apps to a USB memory device	14
Viewing Internet media	15
Enjoying content from your mobile device on the TV with Google Cast	16
Enjoying safe apps and video streaming services (Security & Restrictions)	17
Searching by using your voice	17
Basic Operations	17
Using the remote control	18
Home Menu	19
Using the Discover button	21
Using the Action Menu	22
Selecting devices that are connected to the TV	23
Identifying the status of the TV through illumination	23
Illumination LED	23
Illumination at the bottom of the screen	24
Support Site	25
Watching TV	25
Watching TV Programs	26
Using the program guide	26
Using interactive broadcast TV services	26
Watching in 3D (3D models only)	27
Understanding the basics of 3D TV (3D models only)	27
Preparing your 3D glasses (3D models only)	29
Watching TV in 3D (3D models only)	31
Enjoying social networking services while watching TV	32
Using the TV With Other Devices	33
USB Devices	33
Playing content stored on a USB device	34
Information about USB devices used for storing photos and music	35
Supported files and formats	35
Photos	36
Videos	37
Audio sampling rates (for videos)	42
External subtitles	43
Blu-ray and DVD players	43
Connecting a Blu-ray or DVD player	44
Watching Blu-ray and DVD discs	46
Smartphones and tablets	47
Displaying the screen of a smartphone/tablet on theTV using the Screen mirroring function	47
Sharing photos/music/videos	48
Using the “Video & TV SideView” app with yoursmartphone/tablet	49
Computers, cameras, and camcorders	51
Connecting a computer and viewing stored content	51
Connecting a camera or camcorder and viewing	52
Computer video signal specifications	54
Audio system	54
Connecting an audio system	55
Adjusting audio system-related settings	57
Bluetooth devices	58
Connecting a Bluetooth device	58
Supported Bluetooth profiles	59
Sony wireless subwoofer (optional) (Sony wirelesssubwoofer supported models only)	59
Connecting a wireless subwoofer (optional)	59
Adjusting wireless subwoofer-related settings(optional)	60
BRAVIA Sync-compatible devices	61
BRAVIA Sync overview	62
Using features available for BRAVIA Synccompatibledevices	62
Adjusting BRAVIA Sync settings	63
Connecting an IR Blaster (IR Blaster compatiblemodels only)	65
Viewing pictures in 4K from compatible devices	66
Viewing pictures in 4K resolution	66
Settings for viewing pictures in 4K resolution withhigher quality	68
Connecting to a Network	68
Connecting to a network using a LAN cable	69
Connecting to a network using a wirelessconnection	70
Using Wi-Fi to connect the TV to your network	70
Using Wi-Fi Direct to connect to the TV (nowireless router required)	71
Home network features	74
Adjusting home network settings	74
Playing content from a computer	75
Playing content from a media server	76
RVU statement (RVU compliant models only)	76
Settings	77
Configuring the TV	77
[TV]	77
[Network & Accessories]	78
[System Preferences]	79
[Personal]	79
[Expert panel settings](only models equipped withan OLED panel)	80
Setting a timer	81
Troubleshooting	81
Self diagnostics	82
Software updates	82
If a full reset (restart) of the TV is required	83
Picture (quality)/screen	83
Picture quality is not as good as viewed at thestore.	84
Distorted picture.	85
The screen flickers.	85
No color/Dark picture/Color is not correct/Picture is too bright	85
Dark screen. How to brighten the screen.	86
Color is not correct. How to adjust the color tone.	86
Screen format/wide mode changes automatically.	87
Black bands appear at the edges of the screen.	87
A black box appears on the screen.	88
There are banners/tickers at the top or bottom ofthe screen.	88
3D pictures are not displayed. The 3D effect isweak. (3D models only)	88
Black bars appear on both sides of the screenwhen watching 3D pictures. (3D models only)	89
You cannot turn off 3D display while watching 3Dcontent. (3D models only)	90
The message [3D signal has been detected.]automatically appears when 3D signal is detected.(3D models only)	90
A message about an app asking for permission toaccess a TV function is displayed.	90
The screen becomes darker after a certain periodof time. (only models equipped with an OLEDpanel)	90
The message [Panel refresh did not finish] isdisplayed. (only models equipped with an OLEDpanel)	91
You are concerned about an image retention. (onlymodels equipped with an OLED panel)	91
A white line appears on the screen. (only modelsequipped with an OLED panel)	92
Panel refresh does not complete. (only modelsequipped with an OLED panel)	92
Keyboard	92
Broadcast reception	92
Check these things first to troubleshoot your TVreception.	93
Block noise or an error message appears and youcannot watch broadcasts.	93
Ghosting or double images appear.	93
Only snow noise or a black picture appears on thescreen.	94
There is picture or sound noise when viewing ananalog TV channel.	94
Some channels are blank.	95
Poor reception or poor picture quality with digitalbroadcasts.	95
You cannot view digital channels.	95
You cannot receive or select channels.	96
Some digital cable channels are not displayed.	96
Broadcast HD formats have poor quality.	97
Sound	97
No sound but good picture.	97
Audio noise.	98
No audio or low audio with a home theater system.	98
Distorted sound.	99
Headphone volume cannot be adjusted.	99
Network (Internet/home)/apps	99
The network name (SSID) of the wireless router(access point) to which you want to connect is notdisplayed.	100
Sometimes video streaming quality is poor.	100
Wi-Fi connection is lost or intermittent.	100
Certain Internet video content displays a loss ofdetail.	101
Good picture quality but no sound on Internet videocontent.	101
Apps are inaccessible.	102
The TV cannot access the Internet when IPv6 isset.	102
Your TV cannot connect to the server.	102
A message appears stating that the TV cannotconnect to your network.	103
You can connect to the Internet, but not to Googleservices.	103
You cannot add a Google account.	103
Remote control/accessories	104
The remote control does not operate.	104
You cannot turn the Active 3D Glasses on. (3Dmodels only)	105
The LED indicator on the Active 3D Glasses blinks.(3D models only)	106
Power	106
The TV turns off automatically.	107
The TV turns on automatically.	107
After unplugging the TV and plugging it in again,the TV does not turn on even if you press thepower button on the remote control or the TV.	107
Connected devices	108
No picture from a connected device.	108
You cannot select a connected device in the HomeMenu.	109
Certain programs on digital sources display a lossof detail.	109
Photo images or folders take time to display.	109
You cannot find a connected BRAVIA Sync HDMIdevice.	110
You cannot control a second AV receiver.	110
An external device (such as a set-top box or AVreceiver) cannot be controlled via the IR Blaster.(IR Blaster compatible models only)	110
Some media files in the USB device or server arenot displayed.	111
The TV cannot be found by a Wi-Fi Direct device.	111
Operation cuts out, or a device does not work.	111
What kind of devices can be connected using theScreen mirroring function?	112
The TV cannot connect to a Miracast device orScreen mirroring compatible device.	112
Video or sound sometimes cuts out.	113
Some paid content cannot be played.	113
The TV cannot be turned on and controlled by using the \	113
The TV does not appear on or cannot be registeredwith the “Video & TV SideView” app.	114
Illumination LED	115
The illumination LED or bottom of the screensometimes lights up.	115
You want to disable the illumination LED so that itdoes not light up or blink.	115

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Press the ACTION MENU button, then select [Speakers] — [TV speakers].

If it is set to [Audio system], the TV speakers only output key tones or system sounds.