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Troubleshooting Guide - Sony CDX-4250 Operating Instructions (primary manual) Operating Instructions Manual

Fm/am compact disc player
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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 connection and operating procedures.
General
Problem
No sound.
The contents of the memory
have been erased.
Indications do not appear in
the display.
No beep sound.
CD playback
Problem
CD cannot be loaded.
Play does not begin.
CD is automatically ejected.
CD will not eject.
The operation buttons do not
function.
The sound skips due to
vibration.
Radio reception
Problem
Preset tuning is not possible.
Automatic tuning is not
possible.
The "ST" indication flashes.
Cause/Solution
•Rotate the dial in a clockwise direction to adjust the volume.
•Set the fader control to the center position for two-speaker
systems.
• The power cord or battery has been disconnected.
• The reset button has been pressed.
n Store the settings again into the memory.
Remove the front panel and clean the connectors. See "Cleaning
the connectors" (page 11) for details.
An optional power amplifier is connected and you are not
using the built-in amplifier.
The beep sound is cancelled (page 9).
Cause/Solution
Another CD is already loaded.
The CD was forcibly inserted upside down.
Dirty disc.
The ambient temperature exceeds 50°C (122°F).
Press the 6 button for two seconds.
Press the reset button.
• The unit is installed at an angle of more than 60°.
• The unit is not installed in a sturdy part of the car.
Cause/Solution
• Memorise 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 MONO mode (page 8).
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