Troubleshooting Guide - Kenwood z838w Manual

Troubleshooting Guide

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
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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.
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If you have selected Standby mode, the power will go OFF
automatically.03
✔ The Power OFF Timer function has been activated.
☞ If you do not want the power to go OFF automatically, cancel the
Power OFF Timer function.
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Nothing happens when the buttons are
✔ The computer chip in the unit is not functioning normally.
☞ Press the reset button on the unit (page 4).
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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.
✔ 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.
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The faceplate does not open or close.09
✔ The faceplate is incorrectly attached.
☞ Reattach the faceplate correctly, See the section on <Removing
the Faceplate>(page 21).
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The memory is erased when the ignition is turned
✔ 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
☞ Connect the wire correctly, referring to the section on
<Connecting Wires to Terminals>.
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There's no loudness
✔ You're using Non-fading preout.
☞ Loudness has no effect in Non-fading preout.
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The Non-fading output can't be turned ON or
✔ The <Switching Preout> (page 38) is set is set on Rear preout.
☞ Change it to Non-fading preout.
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The TEL mute function does not
✔ The TEL mute wire is not connected properly.
☞ Connect the wire correctly, referring to the section on
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The TEL mute function turns ON even though the TEL mute wire is
not
✔ The TEL mute wire is touching a metal part of the car.
☞ Pull the TEL mute wire away from the metal part of the car.
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Even if Loudness is turned ON, high-pitched tone isn't compensated
for.
✔ Tuner source is selected.
☞ High-pitched tone isn't compensated for when in Tuner source.
pressed.04
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The Bass center frequency, Bass quality factor, Bass extend, Middle
center frequency, Middle quality factor, and Treble center frequency
can't be
✔ The <System Q> (page 37) is set OFF.
☞ Set it ON.
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No sound can be heard, or the volume is low.
✔ The fader or balance settings are set all the way to one
☞ Center the fader and balance settings.
✔ The input/output wires or wiring harness are connected
☞ Reconnect the input/output wires or the wiring harness correctly.
✔ The values of Volume offset are
☞ Increase the values of Volume offset. (page 11)
✔ The <Built-in Amp Mute Setting> (page 38) is
OFF.10
☞ Turn it OFF.
connected.11
— 48 —
effect.12
work.15
<Connecting Wires to Terminals>.
connected.16
17
adjusted.19
See the section on <Connecting Wires to Terminals>.
low.24
OFF.14
side.21
incorrectly.22
ON.100