Troubleshooting - Panasonic CQ-DF402U Operating Instructions Manual

Electrical Connections
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Wiring Diagram
Only for CQ-DF402U
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CD changer
CX-DP88U
DIN extension cord (DIN/BATT/RCA/GND)
Yellow Fuse (3 A)
DIN cord
Black
Ground lead
RCA cord
Be sure to connect to a well
grounded metallic part of your car
because noises or troubles may occur.
Red Subwoofer cord
S W-OUT
•
White
(MONO)
Antenna
Preout cord (rear)
Red (R)
REAR
White (L)
Preout cord (front)
Red (R)
FRONT
White (L)
Ground lead
To a clean, bare metallic
part of car chassis.
Motor antenna relay control lead
(To motor antenna) (Max. 500 mA)
This lead is not intended for use with
switch actuated power antenna.
Amp. relay control power lead
This lead is for connection to the power amplifier.
Gray/black stripe
White/black stripe White
(s) (r)
Left speaker
(Front)
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CQ-DF402/DFX302U
(Continued)
Battery lead
White (L)
CD • C-IN
Red (R)
CQ-DF402U
CD changer control connector
6
Power connector
BATTERY 15A Battery lead
Yellow Fuse (15 A) To the car battery,
continuous +12 V DC
ACC Power lead
Black Red
Resistor (1 k≠)
To ACC power,
+12 V DC
Dark blue
Speaker lead
Violet/black stripe
FRONT SP REAR SP
Green/black
Gray Green Violet
stripe
(s) (r) (s) (r) (s) (r)
Right speaker Left speaker Right speaker
(Front)
(Rear) (Rear)

Troubleshooting

Preliminary Steps
Check and take steps as described in the tables below.
If You Suspect Something Wrong
Immediately switch power off.
Disconnect the power connector and check that there is nei-
ther smoke nor heat from the unit before asking for repairs.
Never try to repair the unit by yourself because it is dangerous
to do so.
Troubleshooting Tips
Common
Trouble
Car's engine switch is not on.
Turn your car's ignition switch to ACC or ON.
Cables are not correctly connected.
Connect cables correctly.
Battery cable is not correctly connected.
Connect the battery cable to the terminal that is always active.
No power.
Accessory cable is not correctly connected.
Connect the accessory cable to your car's ACC source.
Grounding wire is not correctly connected.
Connect the grounding wire to a metal part of the car.
Fuse is burnt.
Call the store where you purchased the unit, or your nearest Servicenter
(see the attached sheet) and ask for fuse replacement.
Mute is set to ON.
Set it to OFF.
Cables are not correctly connected.
No sound.
Connect cables correctly.
Condensation (dew)
Wait for a while before use.
Radio
Station is too far, or signals are too weak.
Much noise in FM stereo
Select other stations of higher signal level.
and monaural broadcasts.
Battery cable is not correctly connected.
Preset station is reset.
Connect the battery cable to the terminal that is always live.
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Cautions:
≥ Do not use the unit if it malfunctions or
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if there is something wrong.
≥ Do not use the unit in abnormal condi-
tion, for example, without sound, or
with smoke or foul smell, can cause ig-
nition or electric shock. Immediately
stop using it and call the store where
you purchased it.
Cause/Step
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CQ-DF402/DFX302U