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Advanced Operation
Initialization of the Microprocesssor
•In very rare instances, the AVR-4806 internal microprocessor
might lock up, or otherwise cause mis-operation. This might
be caused due to an AC line surge or line spike noise, or by
static electric discharge on or nearby the unit, or to
connected components. If the condition cannot be corrected
by powering off the unit, including disconnection of the
power supply cord for a period of ten minutes and
subsequent re-connection, then the unit may have to be re-
initialized. Doing so will restore the microprocessor to its
original out-of-the-box state, with all custom memories and
settings erased, and the original factory default settings
restored. Only use this procedure if you are sure that the
microprocessor requires re-initialization.
1Switch off the unit using the main unit’s
POWER switch.
2Hold the following PURE DIRECT button and
DIRECT/STEREO button, and turn the main
unit’s POWER switch on.
3Check that the entire display is flashing with
an interval of about 1 second, and release your
fingers from the 2 buttons.
•The microprocessor will be initialized.
•If step 3 does not work, start over from step 1.
•If the microprocessor has been reset, all the settings are
reset to the default values (the values set upon shipment
from the factory).
Last Function Memory
•This unit is equipped with a last function memory which
stores the input and output setting conditions as they were
immediately before the power is switched off.
This function eliminates the need to perform complicated
resetting when the power is switched on.
•The unit is also equipped with a back-up memory. This
function provides approximately one week of memory
storage from when the main unit’s power switch is off and
with the power supply cord disconnected.
