See also:

Uniform Tire Quality Grading (UTQG)
For details, refer to “Uniform tire quality grading standards”. ...

Random playback
To playback a track/file(s) at random, press the following button (random button) while the track/file is playing. *1: For type A, B and C audio, press the button for 0.5 second or longer. * ...

Tone and balance control
Each brief press of the “TUNE/TRACK/ CH” dial changes the control modes in the following sequence. Choose the desired level for each mode by turning the “TUNE/TRACK/CH” dial. The control func ...