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Use this feature to prevent accidental changes to settings
on this unit.
Choices: ON, OFF
Select ON to protect the following features:
° The on-screen display (OSD) mode
° All SET MENU items
° Center, rear speakers, rear center, and subwoofer
levels
° DSP program parameters
• When this item is set to ON, you cannot use the test tone.
• When this item is set to ON, you cannot select any other SET
MENU items.
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