Troubleshooting Guide

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

 

 

 

 

 

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• Cannot set up the subwoofer.

 

 

 

 

• No output from the subwoofer.

 

 

 

 

• Cannot set up the subwoofer position of Manual

 

 

 

 

position setting.

 

 

 

 

▲ • The Dual zone function is enabled. <Dual Zone

 

 

 

 

System> (page 51)

 

 

 

 

• “SubWoofer” of <Audio Control> (page 48)/

 

 

 

 

“SUBWOOFER SET” of <Audio Control> (page 52) is

 

 

 

 

not set to ON.

 

 

 

 

• “SubWoofer” > “FC” of <X’Over Setting> (page 56)/

 

 

 

 

“LPF SUBWOOFER” of <Audio Control> (page 52) is

 

 

 

 

set to “Through”/ “THROUGH”.

 

 

 

 

• In the speaker select option, None is selected for

 

 

 

 

the subwoofer. <Speaker Setting> (page 54)

 

 

 

 

 

 

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• Cannot set up the equalizer.

 

 

 

 

• Cannot set up the Bass Boost.

 

 

 

 

• Cannot set up the Highway sound.

 

 

 

 

• Cannot set up the Supreme.

 

 

 

 

• Cannot set up the Position control.

 

 

 

 

▲ • The Dual zone function is enabled. <Dual Zone

 

 

 

 

System> (page 51)

 

 

 

 

• The DSP function is disabled. “DSP Set” of <Audio

 

 

 

 

Control> (page 48)

 

 

 

 

• In the speaker select option, None is selected for

 

 

 

 

the rear speakers. <Speaker Setting> (page 54)

 

 

 

 

 

 

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• 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. <Dual Zone

 

 

 

 

System> (page 51)

 

 

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Cannot set up Display.

 

 

 

 

▲ <Demonstration mode Setting> (page 45) is not

 

 

 

 

turned off.

 

 

 

 

 

 

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Cannot switch to USB/iPod source.

 

 

 

 

▲ The Dual zone function is set to USB/iPod. <Dual

 

 

 

 

Zone System> (page 51)

 

The number of songs contained in “SONGS”

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category of this unit is different from that

 

 

 

 

contained in “SONGS” category of iPod.

 

 

 

 

▲ Podcast files are not counted in this unit as this unit

 

 

 

 

does not support the playback of podcast files.

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 operation check sound (beep sound) does not sound.

The preout jack is being used.

The Touch Sensor Tone cannot be output from the preout jack.

 ?  The illumination flashes when the knob or button is operated.

This is the key illumination effect.

You set this effect in “ILLUMI Effect” of <Display Setting> (page 36).

 ?  The key illumination effect brought about in conjunction with the sound volume is small.

The key illumination effect may be insufficient depending on the sound volume and sound quality.

Tuner source

 ?  Radio reception is poor.

The car antenna is not extended.

Connect the Antenna control wire to the power terminal for the booster amplifier of the film-type or short pole type antenna

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 discs> (page 4).

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 discs> (page 4).

The recording condition is bad.

Record the media again or use another media.

74DPX504U/ DPX404U/ DPX304