Resetting factory settings
Perform this procedure if the display is abnormal or if operations cannot be performed.
Various settings are reset to the factory default values. Make settings again.
Turn off the power using .
Press while simultaneously pressing TUNER PRESET CH + and TUNER PRESET CH -.
Remove your fingers from the two buttons when “Initialized” appears on the display.
When deleting a Pandora account, carry out steps 1 to 3 after signing out in the Pandora service. link