Sony MHC-V73D Help Manual page 19

Help Guide
Home Audio System
MHC-V73D
Inserting batteries to the remote control
Insert the two supplied R03 (size AAA) batteries, matching the polarities.
1
To operate the system using the remote control
Point the remote control at the system's remote control sensor.
Hint
Do not mix an old battery with a new one or mix different types of batteries.
If you do not use the remote control for a long period of time, remove the batteries to avoid damage from battery leakage and
corrosion.
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