Yamaha DTXTREME Owner's Manual page 14

PHONES jack
Connect headphones to this jack to
monitor the DTXTREME sounds.
PHONES AUX IN
AUX IN jack
Connect this stereomini jack to the line output jacks
on an external audio device to monitor CD, MD, or
tape sounds from that device on the DTXTREME. It is
useful when you want to play with such audio
sources.
CARD slot
Insert the Memory Card (3.3-volt SmartMedia) to store or read DTXTREME data or files.
AUX IN VOL
AUX IN VOL control
Adjusts the output volume of an audio source
connected to the AUX IN jack.
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