JVC KD-SX950 Manuel D'instructions page 14

INT
To play back only intros (Intro Scan)
Each time you press INT (Intro) briefly while playing a CD, CD intro scan
INT
mode turns on and off alternately.
When the intro scan mode is turned on, "INT" appears on the display for 5
seconds and the track number flashes. The first 15 seconds of each track
are played sequentially.
Track number of the currently playing track
14