18|KDC-MP242/KDC-MP142/CRTroubleshooting GuideSome functions of this unit may be disabled bysome settings made on this unit.!Cannot display the user of System Q.▲!• Cannot set up the subwoofer.• No output from the subwoofer.• Cannot set up the low pass filter.▲• Preout is not set to subwoofer.☞“SWPRE” of• (page 4) is not set to On.!• Cannot register a security code.• Cannot set up Display.▲ (page 11) 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.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 3).✔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 3).✔The recording condition is bad.☞Record the media again or use another media.The messages shown below display yoursystems condition.TOC ERR:• No disc has been loaded in the discmagazine.• The CD is quite dirty. The CD is upside-down. The CD is scratched a lot.E-05:The disc is unreadable.E-15:Media was played that doesn’t have datarecorded that the unit can play.E-77:The unit is malfunctioning for some reason.➪Press the reset button on the unit. If the “E-77” code does not disappear, consult yournearest service center.E-99:Something is wrong with the disc magazine.Or the unit is malfunctioning for some reason.➪Check the disc magazine. And then pressthe reset button on the unit. If the “E-99”code does not disappear, consult yournearest service center.IN (Blink):The CD player section is not operatingproperly.➪Reinsert the CD. If the CD cannot beejected or the display continues to flasheven when the CD has been properlyreinserted, please switch off the powerand consult your nearest service center.PROTECT:The speaker wire has a short-circuit ortouches the chassis of the vehicle, and thenthe protection function is activated.➪Wire or insulate the speaker cableproperly and press the reset button. Ifthe “PROTECT” code does not disappear,consult your nearest service center.NA FILE:An Audio file is played with a format that thisunit can’t support.➪----COPY PRO:A copy-protected file is played.➪----
