Sony STR-DH590 Help Manual page 119

Help Guide
MULTI CHANNEL AV RECEIVER
STR-DH590
Resetting sound fields to the default settings
Be sure to use the buttons on the receiver to perform this operation.
Turn off the receiver.
1
While holding down MUSIC, press
2
"S.F. CLEAR" appears on the display panel and all sound fields are reset to their default setting.
(power) on the receiver.
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