Sony CDX-2500R Operating Instructions Manual page 24

Radio reception
Problem
Preset tuning is not possible.
Automatic tuning is not
possible.
The stations cannot be
received.
The sound is hampered by
noises.
The "ST" indication flashes.
RDS
Problem
The SEEK starts after a few
seconds of listening.
No traffic announcements.
PTY displays "NONE."
If the above-mentioned solutions do not help improve the situation, consult your nearest Sony
dealer.
24
Cause/Solution
• Memorise the correct frequency.
• The broadcast signal is too weak.
The broadcast signal is too weak.
n Use manual tuning.
Connect an power aerial control lead (blue) or accessory power
supply lead (red) to the power supply lead of a car's aerial
booster. (When your car has built-in FM/MW/LW aerial in the
rear/side glass only.)
•Tune in the frequency accurately.
•The broadcast signal is too weak.
n Set to the MONO mode (page 10).
Cause/Solution
The station is non-TP or has a weak signal.
n Press (AF/TA) repeatedly until "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.