Sony CDX-M600R Operating Instructions Manual page 42

Radio reception
Problem
Preset tuning is not possible.
The stations cannot be received.
The sound is hampered by
noises.
Automatic tuning is not
possible.
The "ST" indication flashes.
RDS
Problem
The SEEK starts after a few
seconds of listening.
No traffic announcements.
PTY displays "None."
DSP functions
Problem
No sound, or sound is too low.
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Cause/Solution
•Store the correct frequency in the memory.
•The broadcast signal is too weak.
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.)
The broadcast signal is too weak.
t Use manual tuning.
•Tune in the frequency accurately.
•The broadcast signal is too weak.
t Set to the Mono mode (page 17).
Cause/Solution
The station is non-TP or has weak signal.
t Press (AF/TA) to select "AF TA off."
•Activate "TA."
•The station does not broadcast any traffic announcements
despite being TP. t Tune to another station.
The station does not specify the programme type.
Cause/Solution
The volume of the speakers may have been automatically
lowered in order to maximize the effect of the listening
position adjustment.
t Press < or , to adjust the balance.
The speaker balance can be set separately for DSP on mode
and DSP off mode (page 29).