Sony CDX-GT240 Operating Instructions - Page 16

Troubleshooting 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 No power is being supplied to the unit. • Check the connection or fuse. • If the unit is turned off and the display disappears, it cannot be operated with the remote commander. t Turn on the unit. The power antenna (aerial) does not extend. The power antenna (aerial) does not have a relay box. No sound. • The ATT function is activated. • The position of the fader control "FAD" is not set for a 2-speaker system. No beep sound. • The beep sound is canceled (page 10). • An optional power amplifier is connected and you are not using the built-in amplifier. The contents of the memory have been erased. • The RESET button has been pressed.*1 t Store again into the memory. • The power supply lead or battery has been disconnected or it is not connected properly. Stored stations and correct time are erased. The fuse has blown. Makes noise when the position of the ignition is switched. The leads are not matched correctly with the car's accessory power connector. During playback or reception, demonstration mode starts. If no operation is performed for 5 minutes with "DEMO-ON" set, demonstration mode starts. t Set "DEMO-OFF" (page 10). The display disappears from/does not appear in the display window. • The dimmer is set "DIM-ON" (page 10). • The display disappears if you press and hold (SOURCE/OFF). t Press (SOURCE/OFF) on the unit until the display appears. • The connectors are dirty (page 14). The Auto Off function does not operate. The unit is turned on. The Auto Off function activates after turning off the unit. t Turn off the unit. 16 Radio reception The stations cannot be received. The sound is hampered by noises. • The connection is not correct. t Connect a power antenna (aerial) control lead (blue) or accessory power supply lead (red) to the power supply lead of a car's antenna (aerial) booster (only when your car has built-in FM/AM antenna (aerial) in the rear/side glass). t Check the connection of the car antenna (aerial). t If the auto antenna (aerial) will not go up, check the connection of the power antenna (aerial) control lead. Preset tuning is not possible. • Store the correct frequency in the memory. • The broadcast signal is too weak. Automatic tuning is not possible. • Setting of the local seek mode is not correct. t Tuning stops too frequently: Set "LOCAL-ON" (page 10). t Tuning does not stop at a station: Set "LOCAL-OFF" (page 10). • The broadcast signal is too weak. t Perform manual tuning. During FM reception, the "ST" indication flashes. • Tune in the frequency accurately. • The broadcast signal is too weak. t Set "MONO-ON" (page 10). An FM program broadcast in stereo is heard in monaural. The unit is in monaural reception mode. t Set "MONO-OFF" (page 10). RDS PTY displays The current station is not an RDS station. • RDS data has not been received. • The station does not specify the program type. CD playback The disc cannot be loaded. • Another disc is already loaded. • The disc has been forcibly inserted upside down or in the wrong way. The disc does not playback. • Defective or dirty disc. • The CD-Rs/CD-RWs are not for audio use (page 12). MP3/WMA files cannot be played back. The disc is incompatible with the MP3/WMA format and version (page 13). MP3/WMA files take longer to play back than others. The following discs take a longer time to start playback. - a disc recorded with a complicated tree structure. - a disc recorded in Multi Session. - a disc to which data can be added.