Sony dav-tz630 User Manual

A Playing status indicator
B SLEEP indicator

Flashes when the sleep timer is set.

C System status display
D TUNED indicator (Radio only)

Lights up when a station is received.

E ST indicator (Radio only)

Lights up when stereo sound is received.

F Surround format indicator

G HDMI indicator

Lights up when a signal is established 
between a TV and the unit via HDMI.

H NTSC indicator

Lights up when an NTSC disc is loaded.

I USB transferring indicator

Lights up during USB transferring.

J SA-CD indicator

Lights up when a Super Audio CD/CD is 
loaded.