Yamaha RX-V757 ユーザーズマニュアル

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When you set a parameter 
to a value other than the 
factory-set value, an 
asterisk mark (*) appears 
by the parameter name on 
the on-screen display.

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If you press and hold </> to change the parameter value, the 
front panel display automatically stops at the factory preset 
parameter momently.

You cannot change parameter values when “MEMORY 
GUARD” is set to ON. If you want to change the parameter 
values, set “MEMORY GUARD” to OFF (see page 71).

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Use PARAM. INI (see page 72).

The memory back-up circuit prevents the stored data 
from being lost even if this unit is set in the standby 
mode, the power cord is disconnected from the AC 
outlet, or the power supply is temporarily cut due to 
power failure. However, if the power is cut for more 
than one week, the parameter values will return to the 
factory settings. If this happens, edit the parameter 
value again.