Pioneer RS-D7RII - Manual (Page 23)

Setting the menu lock
About the menu lock
If you switch the menu lock ON, it is possible to refuse the opened remote control opera-
tion to adjust the audio adjustment.
It is useful when you do not want to readjust the data by mistake.
Switching to the menu lock ON/OFF
It is possible to switch ON/OFF the menu lock.
• Press the FUNCTION button 4
on initial setting screen
switches the menu lock
ON/OFF.
23
Setting Up the Environment for Use