Sony CDX-GT81UW Operating Instructions - Page 19

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. If everything is in order, check the 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 volume is too low. • The ATT function is activated, or the Telephone ATT function (when the interface cable of a car telephone is connected to the ATT lead) is activated. • The position of the fader control "FAD" is not set for a 2-speaker system. • The CD changer is incompatible with the disc (MP3/ WMA/AAC/ATRAC CD). t Play back with this unit. No beep sound. • The beep sound is canceled (page 12). • 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. t Store again into the memory. • The power supply lead or battery has been disconnected. • The power supply lead 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. The display disappears from/does not appear in the display window. • The dimmer is set "Dimmer on" (page 12). • The angle of the front panel is not proper. t Adjust the angle of the front panel by pressing and hold (ANGLE) (page 5). • The display disappears if you press and hold (OFF). t Press and hold (OFF) on the unit until the display appears. • The connectors are dirty (page 17). 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. Card remote commander operation is not possible. Make sure the insulation film has been removed (page 4). DSO does not function. Depending on the type of car interior or type of music, DSO may not have a desirable effect. The images change automatically. In Auto Image mode, the selected image cannot be displayed. t To display selected image only, set to "Auto Image off" (page 12). Any display items do not display. t Set to "Info All" (page 12). Cannot adjust the volume level (AUX). The portable audio device was not connected when AUX was selected as (SOURCE). t Connect the portable audio device to the AUX input jack. CD/MD 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 15). • The disc format and file version are incompatible with this unit (For details, refer to page 4 and 15). • Press Z to remove the disc. MP3/WMA/AAC 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. The ATRAC CD cannot play. • The disc is not created by authorized software, such as SonicStage or SonicStage Simple Burner. • Tracks that are not included in the group cannot be played. The display items do not scroll. • For discs with very many characters, those may not scroll. • "Auto Scroll" is set to off. t Set to "Auto Scroll on" (page 12) or press (SCRL). The sound skips. • Installation is not correct. t Install the unit at an angle of less than 45° in a sturdy part of the car. • Defective or dirty disc. The operation buttons do not function. The disc will not eject. Press the RESET button (page 4). 19