See also:

How to play back a CD
NOTE For type A audio, if a disc that the player cannot read has been loaded, the player will display the message “CHECK DISC”. ...

Other sound setting controls (type A audio)
Each brief press of the “MENU” button changes the control modes in the following sequence. Choose the desired settings for each mode by turning the “TUNE/TRACK/CH” dial. The control function r ...

ON
This is the normal operating position after the engine is started. ...