Sony MHC-V73D Help Manual page 110

Help Guide
Home Audio System
MHC-V73D
Deactivating the controls on the system (Child Lock)
You can deactivate the controls (except
Hold down (stop) on the system for more than 5 seconds.
1
[CHILD LOCK ON] appears on the display.
To turn off the Child Lock function
Hold down (stop) on the system for more than 5 seconds until [CHILD LOCK OFF] appears on the display.
Note
The Child Lock function will be turned off automatically when you disconnect the AC power cord (mains lead).
The Child Lock function cannot be activated when the disc tray is opened.
(power)) on the system to prevent misoperation by children.
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