ENGLISH28CQ-DF701W 37ENGLISH27CQ-DF701W36Electrical Connections (Continued)❐ Upgrading the SystemExample Combination≥ CD changer (CX-DP88U/N)≥ Stereo power amplifierNote:≥ For wiring, carefully read the operating instructions for the devices connected.CQ-DF701WCD changer controlconnectorCD.C-IN(R)(Red)(L)(White)Stereo poweramplifierSubwoofer speakersS.W-OUT(R) (Red)(L) (White)DIN cordBATTERY(Fuse 3 A)Extension cord(supplied for CX-DP88U/N)CD changerCX-DP88U/NGround leadTroubleshootingPreliminary StepsCheck and take steps as described in the tables below.If You Suspect Something WrongImmediately switch power off.Disconnect the power connector and check that there is nei-ther smoke nor heat from the unit before asking for repairs.Never try to repair the unit yourself because it is dangerous todo so.No power.TroubleCar’s engine switch is not on.➡Turn your car’s ignition switch to ACC or ON.Troubleshooting Tips❐ CommonCables are not correctly connected.➡Connect cables correctly.Battery cable is not correctly connected.➡Connect the battery cable to the terminal that is always live.Accessory cable is not correctly connected.➡Connect the accessory cable to your car’s ACC source.Grounding wire is not correctly connected.➡Connect the grounding wire to a metal part of the car.Fuse is burnt.➡Call the store where you purchased the unit, or your nearest servicestation and ask for fuse replacement.No sound.Mute is set to ON.➡Set it to OFF.Cables are not correctly connected.➡Connect cables correctly.Condensation (dew)➡Wait for a while before use.Cautions:≥ Do not use the unit if it malfunctions oris something wrong.≥ Do not use the unit in abnormal condi-tion, for example, without sound, orwith smoke or foul smell, can cause ig-nition or electric shock. Immediatelystop using it and call the store whereyou purchased it.Cause/StepThe display shows “display and light off”.➡Press [DISP] to change the display.Only sound, no display.A mobile phone is used near the unit.➡Keep the mobile phone away from the unit.Noise.Demonstration mode is ON.➡Press [DISP] to cancel demonstration mode.≥ Buttons unusable.≥ Audio sound is notmatched on themode display.