52ADVANCED FUNCTIONSProcessor ResetThere may be instances when you wish to fully reset the AVR 147 to itsfactory defaults, or the unit may behave erratically after a power surge.To correct erratic behavior, first try turning the Master Power Switchoff and unplugging the AC Power Cord for at least 3 minutes. Plug thecord back in and turn the receiver back on. If this doesn’t help, try asystem reset.NOTES:• A system reset erases all user configurations, including speakerand level settings and tuner presets. After a reset, you willneed to re-enter all of these settings.• The RS-232 Reset Button on the rear panel of the AVR 147does not perform a system reset. DO NOT press the RS-232Reset Button.To reset the AVR 147, place the receiver in Standby mode (press thefront-panel Standby/On Switch so that the Power Indicator turns amber).Then press and hold the front-panel Tone Mode Button for at least 5seconds until the RESET message appears in the display.If the receiver still does not function correctly after a processorreset, contact an authorized Harman Kardon service center forassistance. Service centers may be located by visiting our Web siteat www.harmankardon.com.MemoryIf the AVR 147 is unplugged or experiences a power outage, it willretain user settings for up to four weeks.