Sony CDX-C8050X Operating Instructions Manual page 38

Radio recept ion
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.
Interference occurs during FM
reception.
DSP f unct ions
Problem
No sound, or sound is too low .
The volume level cannot be
increased.
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Cause/Solut ion
• Memorize the correct frequency.
• The broadcast signal is too weak.
The broadcast signal is too weak.
t Use manual tuning.
Connect an power antenna control lead (blue) or accessory
power supply lead (red) to the power supply lead of a car's
antenna booster.
(When your car has built-in FM/AM antenna in the rear/side
glass only.)
• Tune in the frequency accurately.
• The broadcast signal is too weak.
t Set to the Mono mode (page 19).
The Wide mode is selected.
t Set the IF mode to IF Auto (page 19).
Cause/Solut ion
The volume of the speakers may have been automatically
lowered in order to maximize the effect of the listening
position adjustment.
t Press either side of (SEEK/AMS) to adjust the balance.
The DSO function is activated and all the filters for the volume
level are adjusted to +12 dB.
https://www.usersmanualguide.com/
The speaker balance can be set separately for DSP on mode
and DSP off mode (page 23).