Troubleshooting Guide; Tape Playback; Radio Reception - Sony XR-C7500RX Manual De Instrucciones

Troubleshooting guide

The following checklist will help you remedy the problems you may encounter with your unit.
Before going through the checklist below, check the connections and operating procedures.
General
Problem
No sound.
The contents of the memory
have been erased.
Indications do not appear
in the display.
The volume level cannot be
increased.

Tape playback

Problem
The sound is distorted.
The AMS does not operate
correctly.

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.
Cause/Solution
•Cancel the ATT function.
•Set the front or rear fader control to the centre position for
two-speaker systems.
•Rotate the dial clockwise to adjust the volume.
• The power cord or battery has been disconnected.
• The reset button was pressed.
t Store again into the memory.
Remove the front panel and clean the connectors. See
"Cleaning the connectors" (page 36) for details.
The DSO function is activated and all the filters for the volume
level are adjusted to +12 dB.
Cause/Solution
The tape head is contaminated.
t Clean the head with a commercially available dry-type
cleaning cassette.
• There is noise in the space between tracks.
• A blank space is too short (less than four seconds).
• A long pause, or a passage of low frequencies or very low
sound level is treated as a blank space.
Cause/Solution
• Store the correct frequency in the memory.
• The broadcast signal is too weak.
•The broadcast signal is too weak.
t Use manual tuning.
•The local seek mode is set to on.
t Set the local seek mode to off (page 13).
Connect a 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.
t Set to Mono mode (page 13).
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