English | 69Troubleshooting GuideGeneral? The power does not turn on.✔ The fuse has blown.After checking for short circuits in the wires,replace the fuse with one having the samerating.? The desired source is NOT selected althoughyou pressed the SRC button.✔ A non-connected source cannot be selected.A non-connected source is not selected. See and connect theunit correctly.✔ The RESET button is not pressed yet althoughthe optional unit has been connected to thesystem.Press the reset button (page 4).✔ The "O-N" switch of the optional unit is at the"O" position.Set the "O-N" switch to the "N" position.✔ A disc changer not supported by the system isused.Use a disc changer supported by the system(page 4).? Nothing happens when the buttons arepressed.✔ The computer chip in the unit is notfunctioning normally.Press the reset button on the unit (page 4).? The message "Disconnected cable found.Please confirm a connection line" is displayedand the unit cannot be used.✔ Receiver unit is disconnected.Connect the wire correctly, referring to thesection on .? No television/video image appears.✔ The unit is not connected to the parking brakedetection switch.Make proper connections according to.✔ The parking brake is not engaged.For safety reasons no television/video imagesare displayed while the vehicle is moving.Engaging the parking brake will cause imagesto be displayed.? The screen is dark.✔ The unit is in a location where temperature islow.If the temperature of the monitor unit drops,the screen may appear darker when power isfirst turned on due to the characteristics of aliquid crystal panel. Wait a while after turningpower on for the temperature to rise. Normalbrightness will return.? The screen does not darken when the vehicle’slights are turned on.✔ The unit is set to "On" or "Off" for DimmerMode Setup.Set to "SYNC" for Dimmer Mode Setup.✔ The illumination wire has not been connected.(If manual dimmer is set)Make proper connections according to.? AM/FM radio reception is poor and/or there isnoise.✔ The TV antenna and vehicle‘s radio antenna aretoo close.Separate the two antennas as far as possible.Turn off the main unit.? The remote controller does not operate.✔ The remote control mode selector is not setcorrectly.Switch the remote control mode selectoraccording to the source you select (page 10).? No sound can be heard, or the volume is low.✔ Attenuator is turned on.Turn off Attenuator.✔ The fader or balance settings are set all theway to one side.Reset the fader and/or balance settings.✔ The input/output wires or wiring harness areconnected incorrectly.Reconnect the input/output wires or thewiring harness correctly. See the section on.What might appear to be a malfunction in your unit may just be the result of slight misopera-tion or miswiring. Before calling service, first check the following table for possible problems.