In rare cases, your multimedia system may not function the way you expect it to. Before callingthe service department, please read the operating instructions thoroughly and go through thefollowing check list; it may be possible to quickly remedy an apparent malfunction.Symptoms Possible cause/remedyGeneralThe unit does not function. No reaction when theignition is turned on and the POWER button ispressed.• Check the fuses (unit and vehicle) and the connections (see installationinstructions).• Press the RESET button on the TFT monitor.The unit does not react to pressing buttons on theremote control.Remote control batteries empty.• Replace batteries with a new cell of type CR2025.No/low volume during playback. Audio connections defective.• See pin setting in the installation instructions.Volume set too low.MUTE input connected incorrectly.Loudspeaker damaged.Unit switches with hands-free unit/Telephone is notbeing detected even though it has been connectedto the unit.TEL. MUTE lead connected incorrectly or hands-free unit has an incompatible MUTEsignal (active high).• See pin setting in the installation instructions.Preset contents are lost when the unit is switchedoff.Incorrect power supply connection (permanent positive).• See pin setting in the installation instructions.No Bluetooth function. Activate the “Bluetooth” option in the setup menu under “System settings”.TFT monitorThe monitor does not open automatically whenswitched on.The option “TFT Auto Open” in the setup menu is set to “OFF”.The monitor remains in the incorrect position. The swivel range of the monitor is blocked by an obstacle.No picture; only a warning message is displayedeven though the vehicle is stationary.Hand brake not applied or hand brake signal not connected correctly.• See pin setting in the installation instructions.Picture interference or flickering. The selected AV source or disc is not compatible with the selected TV standard(NTSC/PAL).• See “Setup menu”, option “System settings”.AV source connected incorrectly.• See pin setting in the installation instructions.RadioPoor radio reception. • Check if the antenna is completely extended and correctly connected.• Check whether the supply voltage’s negative pole is correctly connected to earth(vehicle chassis).If the unit is being installed in VW and Audi vehicles, you will need a feedmulticoupler for the antenna.• Use a suitable adapter (e.g. Votex).DVD/CD playerInterference to picture or sound during discplayback. Picture freezes during playback.The player cannot play the disc. The disc may be damaged or soiled.Player does not play the inserted disc. The format of the inserted disc does not comply with the player’s specifications.In cold weather conditions, condensation may occur on the laser.• Wait approximately 5 minutes until the condensation evaporates.Playback stops, error message on the monitor. An integrated safety circuit prevents the temperature in the device from exceeding acertain value• Allow the device to cool down.Disc cannot be inserted. There is already a disc inserted in the player.If you cannot find a solution to your problem, contact an authorised VDO Dayton serviceagent or call our Customer Helpdesk*. You will find the telephone number for your countryon the Internet at www.vdodayton.com.* Telephone support is subject to a fee in some cases.EnglishTroubleshooting 29