Troubleshooting Guide - Kenwood KDC-C521FM - CD Changer With RF Modulator Instruction 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
?
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
✔ The computer chip in the unit is not functioning normally.
☞ Press the Reset button on the display unit (page 3).
?
No sound or sound is low.52
✔ The radio volume is sets to the minimum
☞ Turn the radio volume up.
✔ The input/output wire or wiring harness is connected
☞ Connect the input/output wire or wiring harness correctly. See
"Connecting Wires to Terminals" (Page 17).
?
Sound distortion.67
✔ The signal levels differ depending on sources.
☞ Change the Modulation level / Dynamic control setting. (Page 11)
?
Nothing appears on the display.04
✔ The control output of the display unit is not connected properly.
☞ Connect the control output properly.
pressed.04
level.3
incorrectly.55
— 18 — — 18 —
Disc source
?
CD play does not start.52
✔ CD auto-changer input is not connected to the unit.
☞ Connect the CD auto-changer input to the unit.
✔ Power button is not turned
ON.53
☞ Turn the power button ON.
?
The specified disc does not play, but another one plays
✔ The specified CD is quite dirty.
☞ Clean the CD.
✔ The CD is
upside-down.53
☞ Load the CD with the labeled side up.
✔ The disc is loaded in a different slot from that
☞ Eject the disc magazine and check the number for the specified disc.
✔ The disc is severely
scratched.55
☞ Try another disc instead.
?
The specified track will not play.58
✔ Random play or magazine random play has been selected.
☞ Turn off random play or magazine random play.
?
Cannot play CD-R or CD-RW.60
✔ Finalization processing is not being conducted for CD-R/CD-RW.
☞ Conduct finalization processing with CD recorder.
?
Direct Track Search and Direct Disc Search can't be
✔ Another function is ON.
☞ Turn Random Play or other functions OFF.
?
Track Search can't be done.66-2
✔ For the discs first or last song.
☞ For each disc, Track Search can't be done in the backward direction
for the first song or in the forward direction for the last song.
instead.52
specified.54
done.66-1