Marantz SR5015OM Owner's Manual page 252

Contents Connections
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. 232)
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
M-DAX
ZONE2 SOURCE
Front panel Display
Playback Settings
1
Turn off the power using X.
2
Press X while simultaneously pressing M-DAX and
ZONE2 SOURCE.
3
Remove your fingers from the two buttons when
"Initialized" appears on the display.
0 Before returning the settings to the default settings, use the "Save & Load" function
from the menu to save and restore the details of various settings configured on the
unit. (v p. 226)
0 You can also reset all settings to the factory defaults using "Reset" - "All Settings"
in the menu. (v p. 227)
252
Rear panel
Tips
Remote Index
Appendix