Sony AIR-SA20PK Operating Instructions (AIRSA15R) Operating Instructions Manual page 35

To reset the main unit to factory
settings
If the main unit still does not operate
properly, reset the main unit to factory
settings.
1
Disconnect.and.reconnect.the.power.
supply.cord,.and.then.turn.on.the.
unit.
2
Press.SYSTEM.MENU.on.the.unit.
3
Press.TUNING/SELECT.+/.on.the.
unit.repeatedly.until."RESET".appears,.
then.press.ENTER.on.the.unit.
"RESET OK" appears.
4
Press.ENTER.on.the.unit.again.to.
confirm.the.setting.
All user-configured settings are
deleted, such as preset radio stations.
To reset the sub unit to factory
settings
If the sub unit still does not operate
properly, reset the sub unit to factory
settings.
1
Disconnect.and.reconnect.the.power.
cord,.and.then.turn.on.the.unit.
2
Press./CANCEL,.DISPLAY.and..
on.the.unit.at.the.same.time.
All user-configured settings, such as
timer, clock, etc. are deleted.

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