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R-N402/R-N402D
● Starting Self-Diagnostic Function
While pressing the "PRESET " and "BASS +" keys, press the "z" (Power) key to turn on the power, and release those 2
keys.
The self-diagnostic function mode is activated.
Front view
" " (Power) key
● Starting Self-Diagnostic Function in the protection cancel mode
If the protection function works and causes hindrance to troubleshooting, cancel the protection function by the procedure
below, and it will be possible to enter the self-diagnostic function mode. (The protection functions other than the excess
current detect function will be disabled.)
While pressing the "PRESET " and "BASS +" keys, press the "z" (Power) key to turn on the power and keep pressing
those 2 keys for 3 seconds or longer.
The self-diagnostic function mode is activated with the protection functions disabled.
In this mode, the "SLEEP" segment of the FL display flashes to indicate that the mode is self-diagnostic function mode with
the protection functions disabled.
CAUTION:
Using this unit with the protection function disabled may cause further damage to this unit. Use special care for this point
when using this mode.
● Canceling Self-Diagnostic Function
1. Before canceling self-diagnostic function, execute setting for "S1. FACTORY PRESET" menu. (Memory initialization
inhibited or Memory initialized).
*
In order to keep the user memory preserved, be sure to select PRESET INHIBIT (Memory initialization inhibited).
2. Press the "z" (Power) key to turn off the power.
20
Keys of this unit
While pressing these keys, turn on the power.
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