Sony MEX-GS820BT Operating Instructions - Page 31
Troubleshooting, General
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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. For details on using the fuse and removing the unit from the dashboard, see "Connection/Installation" (page 39). If the problem is not solved, visit the support site on the back cover. General No power is being supplied to the unit. If the unit is turned off and the display disappears, the unit cannot be operated with the remote commander. - Turn on the unit. The unit is turned off when playing at a high volume. The power from the power supply lead of the car may not be sufficient. - Check the power connection. If no problem is found in the connection, make the power connection to the battery directly. If the situation does not improve, consult your nearest dealer. No sound or the sound is very low. The position of the fader control [FADER] is not set for a 2-speaker system. The volume of the unit and/or connected device is very low. - Increase the volume of the unit and connected device. No beep sound. 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. - Store again into the memory. The power supply lead or battery has been disconnected or not connected properly. Stored stations and correct time are erased. The fuse has blown. Makes a 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, the demonstration mode starts. If no operation is performed for 5 minutes with [DEMO-ON] set, the demonstration mode starts. - Set [DEMO-OFF] (page 22). The display disappears from/does not appear in the display window. The dimmer is set to [DIM-ON] (page 25). The display disappears if you press and hold OFF. - Press OFF on the unit until the display appears. The connectors are dirty (page 28). The display/illumination flashes. The power supply is not sufficient. - Check that the car battery supplies enough power to the unit. (The power requirement is 12 V DC.) The operation buttons do not function. The disc will not eject. The connection is not correct. - Check the connection of the unit. If the situation does not improve, press the reset button (page 8). The contents stored in memory are erased. For your safety, do not reset the unit while you are driving. 31GB