Sony STR-AZ3000ES Startup Manual page 361

Help Guide
Multi Channel AV Receiver
STR-AZ7000ES/STR-AZ5000ES/STR-AZ3000ES
Switching the brightness of the display panel (Dimmer)
You can switch the brightness of the display panel.
Select [Setup] - [System Settings] from the home menu.
1
2 Select [Dimmer].
Select the setting you want.
3
Bright
Dark
Off
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