Sony CDX-4480ESP Operating Instructions - Page 18

Troubleshooting guide The following checklist will help you remedy problems you may encounter with your unit. Before going through the checklist below, check the connection and operating procedures. General Problem Cause/Solution No sound •Rotate the dial in a clockwise direction to adjust the volume. •Set the fader control to the center position for two-speaker systems. The contents of the memory have been erased. • The power cord or battery has been disconnected. • The reset button has been pressed. n Store again into the memory. Indications do not appear in the Remove the front panel and clean the connectors. See "Cleaning display. the connectors" (page 15) for details. No beep tone •An optional power amplifier is connected and you are not using the built-in amplifier. • The beep tone is attenuated (page 13). EN CD playback Problem Cause/Solution CD cannot be loaded. •Another CD is already loaded. •The CD was forcibly inserted upside down. Play does not begin. Dusty disc. CD is automatically ejected. The ambient temperature is more than 50°C. CD will not eject. Press 6 for two seconds. The operation buttons do not Press the reset button. function. The sound skips due to vibration. • The unit is installed at an angle of more than 60°. • The unit is not installed in a sturdy part of the car. Radio reception Problem Preset tuning is not possible. Automatic tuning is not possible. The "ST" indication flashes. Cause/Solution • Store the correct frequency in the memory. • The broadcast signal is too weak. The broadcast signal is too weak. n Use manual tuning. •Tune in the frequency precisely. •The broadcast signal is too weak. n Set to the MONO mode (page 10). 18