Sony HT-SF2300 Operating Instructions Manual page 10

You can use the supplied remote RM-AAU022 (Models of area code U, UC, CA only) or
RM-AAU023 (Models of area code CEL, CEK, AU, TW, TH only) to operate the receiver and
to
control the Sony audio/video components that the remote is assigned to operate (page 63).
10
GB
RM-AAU022
(Models of area code U, UC,
CA only)
RM-AAU023
(Models of area code CEl, CEK, AU,
TW, TH only)