E
N
G
L
I
S
H
10
Troubleshooting
CQ-R253U
19
E
N
G
L
I
S
H
9
CQ-R253U
18
Preliminary Steps
Check and take steps as described in the tables below.
If You Suspect Something Wrong
Immediately switch the power off.
Disconnect the power connector and check that there is neither
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.
No power.
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.
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.
➡
Consult the store where you purchased the unit and ask for fuse
replacement.
Caution:
• Do not use the unit if it malfunctions or if
there is something wrong.
• Do not use the unit in irregular condition, for
example, without sound, or with smoke or
foul smell, which can cause ignition or electric
shock. Immediately stop using it and call the
store where you purchased it.
Cause/Step
Troubleshooting Tips
❐
Common
No sound.
Mute is set to ON.
➡
Set it to OFF.
Noise.
The ground Lead is not connected properly.
➡
Connect the Ground Lead properly.
Cables are not correctly connected.
➡
Connect cables correctly.
Remote Control
M
O
D
E
DOLBY B NR
TRACK
TUNE
REMOTE
Battery Installation
Remove the battery holder.
Press and position A of the battery holder and then pull it out.
Install the battery on the battery holder.
Place a battery in the holder with its “+” side facing up as shown
in the figure.
Insert the battery holder.
Push the battery holder back into its original position.
Battery Notes
Remove and dispose of an old battery immediately.
Battery Information:
• Battery type: Panasonic lithium battery (CR2025) (included)
• Battery life: Approximately 6 months with normal use (at room temperature)
Caution:
• Improper use of batteries may cause overheating, an explosion or ignition, resulting in injury or a fire. Battery
leakage may damage the unit.
PWR
MODE
PRG
TUNE
TRACK
Car Audio
BAND/DISC UP
VOL
MUTE
(ATT)
[PWR] (power)
[MODE] (Mode)
(
➡
page 12, 16)
• Do not disassemble or short the battery. Do not throw a battery into a fire.
• Keep batteries away from children to avoid the risk of accidents.
• Be careful to observe proper local disposal rules when you dispose of batteries.
Control Reference Guide
Buttons of the remote control function in the same way as the controls on the main unit of the reference page.
Point the remote control unit at the main unit’s sensor (REMOTE).
[MUTE] (Mute)
(
➡
page 10)
[VOL][
}
][
{
] (Volume)
(
➡
page 10)
[TUNE][TRACK] [
] [
] [
]
] [
[
]
(Tune/track, selection/search/Fast
forward/Fast rererse)
(
➡
page 12, 14, 16)
[BAND] [DISC UP]
(Band/Disc change/play
side change)
(
➡
page 12, 14, 16)
Trouble
Much noise in FM stereo
and monaural
broadcasts.
The Antenna ground earth is not connected properly.
➡
Connect the Antenna ground earth properly.
Preset station is reset.
Battery cable is not correctly connected.
➡
Connect the battery cable to the terminal that is always active.
The radio antenna is not extended enough.
➡
Extend fully the radio antenna.
Cause/Step
❐
Radio
(Back side)
Battery holder
Lithium battery
(included)
Position A
Position B
Summary of Contents for CQ-R253U
Page 36: ...Memorandum Memorandum...
