Remove the dust cap from the CD DIGITAL OUT (OPTICAL) jack. Then, connect an optical cable plug to the CD DIGITAL OUT (OPTICAL) jack.
When the CD DIGITAL OUT (OPTICAL) jack is not being used
Attach the supplied dust cap.
SUPER WOOFER 
JACK
Connect an optional powered sub woofer with a
LISTENING TO EXTERNAL SOURCES
To play equipment connected to the VIDEO/AUX jacks or MD jacks, proceed as follows.
1 Press the VIDEO/AUX or MD button.
When a equipment connected to the VIDEO/AUX jacks is played: press the VIDEO/AUX button.
When a equipment connected to the MD jacks is played: press the MD button.
2 Play the connected equipment.
To change a source name in the display
When the VIDEO/AUX button is pressed, VIDEO is displayed initially. It can be changed to AUX or TV. With the power on, press the POWER button while pressing the VIDEO/AUX button.
Repeat the procedure to select one of the names.
To adjust the sound level of the external source
When the sound level of the external source is much higher or much lower that that of other function sources, adjust it as follows.
1 Press the VIDEO/AUX or MD button and play the equipment.
2 Press the 
or 
button so that the sound level becomes the same as that of other function sources.
NOTE
During recording, the sound level can not be adjusted.
