Troubleshooting Guide; Radio Reception - Sony CDX-C4850R 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 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/MD playback
Problem
A disc cannot be loaded.
Playback does not begin.
A disc 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
•Cancel the ATT function. (CDX-C4850R/4250R/4250RV only)
•Set the fader control to the centre position for two-speaker
systems.
•Rotate the dial in a clockwise direction to adjust the volume.
• The power cord or battery has been disconnected.
• The reset button has been pressed.
n Store again into the memory.
Remove the front panel and clean the connectors. See "Cleaning
the connectors" (page 26) for details.
•An optional power amplifier is connected and you are not
using the built-in amplifier.
• The beep sound is canceled (page 19).
Cause/Solution
•Another CD is already loaded.
•The CD is forcibly inserted upside down or in the wrong way
(MD).
Defective MD or dirty CD.
The ambient temperature exceeds 50°C.
Press 6 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 11).
continue to next page n
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