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English | 37Troubleshooting GuideSome functions of this unit may be disabled bysome settings made on this unit.! • Cannot set up the subwoofer.• Cannot set up the High Pass Filter.• Cannot set up the Fader.• No Audio control effect on AUX.▲ • of (page 4)is not set to On.• The Dual zone function is enabled. ☞ Setup> (page 24)! • Cannot set up the subwoofer phase.▲ The Low Pass Filter is set to Through. ☞ Setup> (page 24)! • Cannot select the output destination of thesubsource in the Dual zone.• Cannot adjust the volume of the rear speakers.▲ The Dual zone function is disabled. ☞ Setup> (page 24)! • Cannot register a security code.• Cannot set up Display Illumination Control.▲ (page 21) is notturned off.What might seem to be a malfunction in your unitmay just be the result of slight misoperation ormiswiring. Before calling service, first check thefollowing table for possible problems.General? The Touch Sensor Tone does not sound.✔ The preout jack is being used.☞ The Touch Sensor Tone cannot be output fromthe preout jack.? The illumination flashes when the knob or buttonis operated.✔ This is the key illumination effect.☞ You set this effect in “MENU” > “ILM Effect” of (page 6).Tuner source? Radio reception is poor.✔ The car antenna is not extended.☞ Pull the antenna out all the way.Disc source? The specified disc does not play, but another oneplays instead.✔ The specified CD is quite dirty.☞ Clean the CD, referring to the CD cleaning of thesection on (page 31).✔ The disc is loaded in a different slot from thatspecified.☞ Eject the disc magazine and check the numberfor the specified disc.✔ The disc is severely scratched.☞ Try another disc instead.Audio file source? The sound skips when an Audio file is beingplayed.✔ The media is scratched or dirty.☞ Clean the media, referring to the CD cleaning ofthe section on (page 31).✔ The recording condition is bad.☞ Record the media again or use another media.? Noise is heard when carrying out Folder Search.✔ Noise may be produced if folders without audio filesexist continuously in the playing media.☞ Do not make folders without audio files.
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