Sony CDX-C90R Operating Instructions Manual page 84

Radio reception
Problem
Preset tuning is not possible.
Automatic tuning is not
possible.
The "ST" indication flashes.
RDS
Problem
A SEEK starts after a few
seconds of listening.
GB
No traffic announcements.
PTY displays "No data"
DSP functions
Problem
No sound, or sound is too
low.
84
Additional information
Cause/Solution
•Memorize the correct frequency.
•The broadcast signal is too weak.
The broadcast signal is too weak.
n Use manual tuning.
•Tune in the frequency accurately.
•The broadcast signal is too weak.
n Set to the monaural mode (see page 41).
Cause/Solution
The station is non-TP or has a weak signal.
n Press AF/TA to concel the AF and TA function to
select "AF TA off" appears.
•Activate "TA."
•The station does not broadcast any traffic
announcements despite being TP.
n Tune to another station.
The station does not specify the programme type.
Cause/Solution
The volume of the rear speakers may have been
automatically lowered in order to maximize the effect
of the listening position adjustment.
n Adjust the balance.
The speaker balance can be set separately for the
DSP Sound Tuning mode (see page 71).