Troubleshooting Guide - Kenwood KDC-8080R Instruction Manual

Troubleshooting Guide

What might appear 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.
PROBLEM
The power does not turn on.
No sound can be heard, or the
volume is low.
Nothing happens when the
buttons are pressed.
The sound quality is poor or
distorted.
Radio reception is poor.
The memory is erased when
the ignition is turned off.
The faceplate does not open or
close.
The TEL mute function does
not work.
The TEL mute function turns
on even though the TEL mute
cable is not connected.
POSSIBLE CAUSE
The fuse has blown.
No ACC position on vehicle ignition.
The Attenuator function is turned on.
The fader and/or balance settings are set all the way to
one side.
The input/output cables or wiring harness are connected
incorrectly.
The values of "VOL OFFSET" are low.
The computer chip in the unit is not functioning normally.
A speaker cable may be pinched by a screw in the car.
The speakers are not wired correctly.
The car antenna is not extended.
The antenna control cable is not connected.
The battery cable has not been connected to the proper
terminal.
The ignition and battery cable are incorrectly connected.
The faceplate is incorrectly attached.
The TEL mute cable is not connected properly.
The TEL mute cable is touching a metal part of the car.
After checking for short circuits in the cables, replace
the fuse with one having the same rating.
Connect the same cable to the ignition as the battery cable.
Turn off the Attenuator function.
Reset the fader and/or balance settings.
Reconnect the input/output cables and/or the wiring
harness correctly. See the section on "Connecting
Cables to Terminals".
Increase the values of "VOL OFFSET". (see p. 15)
Press the reset button on the unit (see page 4).
Check the speaker wiring.
Reconnect the speaker cables so that each output
terminal is connected to a different speaker.
Pull out the antenna all the way.
Connect the cable correctly, referring to the section on
"Connecting Cables to Terminals".
Connect the cable correctly, referring to the section on
"Connecting Cables to Terminals".
Connect the cable correctly, referring to the section on
"Connecting Cables to Terminals".
Reattach the faceplate correctly, See the section on
"Removing the Faceplate".(page.12)
Connect the cable correctly, referring to the section on
"Connecting Cables to Terminals".
Pull the TEL mute cable away from the metal part of the
car.
— 46 —
SOLUTION