Sony STR-DN1080 Manual page 11

No 4K content appears on the TV screen. [238]
No image is output from the TV screen when the receiver is in standby mode.
[239]
The home menu does not appear on the TV screen. [240]
HDR (High Dynamic Range) images cannot be displayed in HDR mode. [241]
Display does not appear on the display panel. [242]
Image does not appear on the TV screen when the receiver is not turned on. [243]
When the language for the on-screen display of the TV is changed, the on-screen
display language of the receiver is changed simultaneously. [244]
Sound
No sound or only a very low level of sound is heard, no matter which device is
selected. [245]
There is severe humming or noise. [246]
No sound or only a very low level of sound is heard from specific speakers. [247]
There is no sound from a specific device. [248]
The left and right sound is unbalanced or reversed. [249]
Dolby Digital or DTS multi-channel sound is not reproduced. [250]
The surround effect cannot be obtained. [251]
A test tone is not output from the speakers. [252]
A test tone is output from a different speaker than the speaker displayed on the TV
screen. [253]
No sound is output from the TV when the receiver is in standby mode. [254]
No TV sound is output from the receiver. [255]
Image and sound are not output from the TV when the receiver is not turned on.
[256]
The sound is output from both the receiver and the TV. [257]
When the Wireless Multi-Room function is active, the sound lags behind the
picture. [258]
Tuner
The FM reception is poor. [259]
The FM stereo reception is poor. [260]
You cannot tune to radio stations. [261]
RDS does not work (for European and Asia-Pacific models only). [262]
The RDS information that you want does not appear (for European and Asia-
Pacific models only). [263]
USB devices
Are you using a compatible USB device? [264]
When the music on the USB device is played back, there is noise, skipping, or
distorted sound. [265]