Sony MDX-M690 DSP functions (CDX-M770 only)

40
The stations cannot be received.
The sound is hampered by noises.
•Connect a power aerial control lead (blue) or
accessory power supply lead (red) to the
power supply lead of a car’s aerial booster.
(Only when your car has built-in FM/MW/
LW aerial in the rear/side glass.)
•Check the connection of the car aerial.
•The auto aerial will not go up.
tCheck the connection of the power aerial
control lead.
•Check the frequency.
•When the DSO mode is on, the sound is
sometimes hampered by noises.
tSet the DSO mode to off (page 27)
(CDX-M770), (page 27) (CDX-M670,
MDX-M690).
Automatic tuning is not possible.
•The local seek mode is set to “on.”
tSet the local seek mode to “off” (page
34).
•The broadcast signal is too weak.
tPerform manual tuning.
The “ST” indication flashes.
•Tune in the frequency accurately.
•The broadcast signal is too weak.
tSet to the monaural reception mode (page
34).
A programme broadcast in stereo is heard
in monaural.
•The unit is in monaural reception mode.
tCancel monaural reception mode (page
34).
RDS
The Seek starts after a few seconds of
listening.
The station is non-TP or has weak signal.
tPress (AF) or (TA) repeatedly until “AF
off” or “TA off” appears.
No traffic announcements.
•Activate “TA.”
•The station does not broadcast any traffic
announcements despite being TP.
tTune in another station.
PTY displays “--------.”
•The current station is not an RDS station.
•RDS data has not been received.
•The station does not specify the programme
type.
DSP functions (CDX-M770 only)
No sound, or sound is too low.
The volume of the speakers may have been
automatically lowered in order to maximize
the effect of the listening position adjustment.
tPress < or , to adjust the balance. The
speaker balance can be set separately for
DSP on mode and DSP off mode (page 29).