Denon AVR-S570BT 5.2-Channel A/V Receiver - Manual (Page 121)

Resetting factory settings
If the indicators are incorrect or the unit cannot be operated, restarting the unit may improve the problem. We recommend restarting the unit before
returning the settings to the default settings. ( v p. 108)
If the operations are not improved by restarting the unit, follow the steps below.
Various settings are reset to the factory default values. Make settings again.
X
SOUND MODE
TUNER PRESET CH +
1
Turn off the power using X .
2
Press X while simultaneously pressing SOUND
MODE 1 and TUNER PRESET CH +.
3
Release the two buttons when the display starts
flashing at intervals of about 1 second.
0
You can also reset all settings to the factory defaults using “Reset” in the menu.
( v p. 103)
Contents Connections Playback Settings Tips Appendix
121
Front panel Display Rear panel Remote Index