Volvo 2003 C70 Operation And Care Manual page 82

pg. 139 Radio SC-813
A - Fader control
Adjust front/rear speaker balance by sliding the control up or down (up to direct more sound to the front speakers,
down to direct more sound to the rear speakers).
The "detent" indicates "equalized" front/rear balance position.
B - Pause function
Press the "volume" knob to temporarily mute the sound. "PAUSE" is displayed.
C - Balance control
Pull out the "volume" knob and adjust the left/right balance by turning the knob counter-clockwise or clockwise.
D - Scan
Press this button to listen to each station for five seconds. Press it again to stop scanning. "Scan" will be displayed
during scanning.
E - Active sound control (ASC)
The ASC function automatically adjusts the volume level of the audio system according to driving speed.
To deactivate ASC depress the "ASC" button.
To activate ASC, depress the "ASC" button until "ASC" is displayed.
pg. 140 Cassette deck