Troubleshooting Guide

Some functions of this unit may be disabled by some settings made on this unit.

! • Cannot set up the subwoofer.

• No output from the subwoofer.

• Cannot set up the subwoofer position of Manual position setting.

▲ • <Subwoofer output> of <Basic Operation> (page 4) is not set to On.

• The Dual zone function is enabled. ☞ <Audio Setup> (page 28)

! • Cannot set up the subwoofer phase.

▲ The Low Pass Filter is set to Through. ☞ <X’Over setting> (page 30)

!• Cannot select the output destination of the subsource in the Dual zone.

•Cannot adjust the volume of the rear speakers. ▲ The Dual zone function is disabled. ☞ <Audio

Setup> (page 28)

!• Cannot register a security code.

•Cannot set up Display.

▲ <Demonstration mode Setting> (page 27) is not turned off.

What might seem to be a malfunction in your unit may just be the result of slight misoperation or miswiring. Before calling service, first check the following 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 from the preout jack.

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 one plays instead.

✔The specified CD is quite dirty.

☞Clean the CD, referring to the CD cleaning of the section on <Handling CDs> (page 3).

✔The disc is loaded in a different slot from that specified.

☞Eject the disc magazine and check the number for the specified disc.

✔The disc is severely scratched.

☞Try another disc instead.

Audio file source

?The sound skips when an Audio file is being played.

✔The media is scratched or dirty.

☞Clean the media, referring to the CD cleaning of the section on <Handling CDs> (page 3).

✔The recording condition is bad.

☞Record the media again or use another media.

54 KDC-X993/ KDC-HD942U/ KDC-X693/ KDC-MP642U