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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 power does not turn ON.01
✔ The fuse has blown.
☞ After checking for short circuits in the wires, replace the fuse with
one with the same rating.
✔ No ACC position on vehicle ignition.02
☞ Connect the same wire to the ignition as the battery wire.
? Nothing happens when the buttons are pressed.04
✔ The computer chip in the unit is not functioning normally.
☞ Press the reset button on the unit (page 4).
? There’s a source you can’t switch.06
✔ There’s no CD inserted.
☞ Set the media you want to listen to. If there’s no media in this
unit, you can't switch to each source.
✔ There’s no MD inserted.
☞ Set the MD you want to listen to. If there’s no MD in this unit,
you can't switch to each source.
✔ The Disc changer isn’t connected.08
☞ Connect the Disc changer. If the Disc changer isn’t connected to
it's input terminal, You can't switch to an external disc source.
? The memory is erased when the ignition is turned OFF.10
✔ The battery wire has not been connected to the proper terminal.
☞ Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
✔ The ignition and battery wire are incorrectly connected.11
☞ Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
? No sound can be heard, or the volume is low.
✔ The fader or balance settings are set all the way to one side.21
☞ Center the fader and balance settings.
✔ The input/output wires or wiring harness are connected incorrectly.22
☞ Reconnect the input/output wires or the wiring harness correctly.
See the section on <Connecting Wires to Terminals>.
✔ The <Built-in Amp Setting> (page 31) is OFF.
☞ Turn it ON.
? The sound quality is poor or distorted.25
✔ One of the speaker wires is being pinched by a screw in the car.
☞ Check the speaker wiring.
✔ The speakers are not wired correctly.27
☞ Reconnect the speaker wires so that each output terminal is
connected to a different speaker.
? Non-fading output can’t be done.
✔ The <Switching preout> (page 30) is set on Rear preout.
☞ Set it on Non-fading preout.
? The Security Code item isn’t displayed in the Function Setting
System.
✔ The Security Code function is already activated.
☞ When the Security Code function is activated it isn’t displayed in
the Function Setting items.
? The Touch Sensor Tone doesn’t sound.34
✔ The preout jack is being used.
☞ The Touch Sensor Tone can’t be output from the preout jack.
? AUX cannot be selected. 103
✔ <Built-in Auxiliary input Setting> is turned off.
☞ Refer to the <Built-in Auxiliary input Setting> (page 31) in the
Function Setting and turn on the <Built-in Auxiliary input Setting>.
Troubleshooting Guide
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DPX-8030MD_U.S_r3 02.3.22 3:14 PM Page 38