Sony DAV-DZ770W Operating Instructions Manual page 102

Front panel display
About the indications in the front panel display
A Lights up during PBC playback.
(VIDEO CD only) (46)
B Lights up when the time information of
a title or chapter appears in the front
panel display. (DVD only)
C Monaural/Stereo effect (Radio only)
(79)
D Lights up when 2 channel source is
output from the surround speakers.
(67)
E Current sound effect (69)
102
GB
F Current surround format (Except for
Super Audio CD) (65)
G Current mode (DVD function only)
H Lights up during MULTI channel
playback. (Super Audio CD only) (45)
I Playing status (DVD function only)