What is the factory reset and why do I need it?
Factory reset is only available with units that have Feature Memory capability. This reset allows you to set the unit’s options back to original selections. This could be helpful if someone borrowed the unit and “played” with the settings. Following the factory reset procedure will reset the “played with” options. For 1540 series and up. (except 2270/90) to reset options: • Remove power to the unit • Press and hold the power and quiet (mute) buttons • Reapply power while still holding the power and quiet buttons • Wait for 2 beeps • Release the power and quiet buttons. Unit is now reset. For 2270/90 series to reset options: • Remove power to the unit. If connected to a switched source turn off ignition. • Press and hold the power button • Reapply power while still holding the power button • Wait for 2 beeps or about 5 seconds. • Release the power button. Unit is now reset.