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OPERATING INSTRUCTIONS
MANUAL DE INSTRUCCIONES
MODE D’EMPLOI
CDC-X427 YUC
STEREO CAR CD RECEIVER
RADIO-TOCADISCOS DE CD ESTEREOFONICO PARA
AUTOMOVIL
ENGLISH
ESPAÑOL
FRANÇAIS
OWNER’S RECORD
For your convenience, record the model number and
serial number (you will find them on the bottom side of
your set) in the space provided below. Please refer to
them when you contact your AIWA dealer in case of
difficulty.
Model No. CDC-X427
Serial No.
8C-KCG-901-01
011120ATM-OX
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PRECAUTIONS
• Use only in a 12-volt DC negative-ground electrical
system.
• Disconnect the vehicle’s negative battery terminal
while mounting and connecting the unit.
• When replacing the fuse, be sure to use one with an
identical amperage rating. Using a fuse with a higher
amperage rating may cause serious damage to the
unit.
• Do NOT attempt to disassemble the unit. Laser beams
from the optical pickup are dangerous to the eyes.
• Make sure that pins or other foreign objects do not get
inside the unit; they may cause malfunctions, or create
safety hazards such as electrical shock or laser beam
exposure.
• When your vehicle has been parked in direct sunlight
resulting in a considerable rise in the temperature
inside, allow the unit to cool off before operating it.
• Keep the volume at a level at which you can hear
outside warning sounds (horns, sirens, etc.).
NOTE
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However, there
is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment
and receiver.
— Connect the equipment into an outlet on circuit
different from that to which the receiver is connected.
— Consult the dealer or an experienced radio/TV
technician for help.
CAUTION
Modifications or adjustments to this product, which are
not expressly approved by the manufacturer, may void
the user’s right or authority to operate this product.
TABLE OF CONTENTS
THEFT PROTECTION .............................................. 2
BASIC OPERATION, AUDIO AND CLOCK
ADJUSTMENT ..................................................... 2
RADIO OPERATION ................................................. 3
CD PLAYER OPERATION ........................................ 4
AUXILIARY EQUIPMENT ......................................... 5
OTHER FUNCTIONS ............................................... 6
CARD REMOTE CONTROL ..................................... 6
TROUBLESHOOTING .............................................. 7
MAINTENANCE ........................................................ 7
SPECIFICATIONS .................................................... 7
Note
Some buttons are assigned two or more functions.
For detailed descriptions, refer to the related pages.
CD Notes
• Playing a defective or dusty CD can
cause dropouts in sound.
• Hold CDs as illustrated.
• Do NOT touch the unlabeled side.
• Do NOT attach any seal, label or
data protection sheet to either side of CD.
• Do NOT expose a CD to direct sunlight or excessive
heat.
• Wipe a dirty CD from the center outward with a cleaning
cloth.
Never use solvents such as benzine or alcohol.
• This unit cannot play 3-inch (8 cm) CDs.
• NEVER insert a 3-inch CD contained in the adapter or
any irregularly shaped CD.
The unit may not be able to eject it, resulting in a
malfunction.
DEMO (Demonstration) mode
The unit has an extra display (DEMO) mode which
demonstrates the illumination modes of the unit. The
unit switches to DEMO mode automatically if you turn
the unit on and leave it as it is for 5 seconds after all the
connections have been completed.
To cancel DEMO mode
1 During DEMO mode, press and hold SRC until “ILL”
appears in the display.
2 Press i or k to select “DE.”
3 Turn AUDIO CONTROL to select “DE 0.”
To resume DEMO mode, select “DE 1” in step 3.
In addition to ordinary CDs, CD-Rs or CD-RWs can
be read by this unit. However, NEVER use a CD-R or
CD-RW that contains no data or data in the wrong
format, such as MP3 or other computer files.
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THEFT PROTECTION
Take the front panel with you when leaving the car, and
keep it in the supplied carrying case.
Detaching the front panel
Before detaching the front panel, remove the CD to
prevent possible damage to the unit.
1 Press z to remove the CD.
2 Press and hold PWR/MUTE until the unit turns off.
3 Press %. (Hold the panel with one hand to prevent
accidentally dropping it.)
4 Remove the panel.
Attaching the front panel
1 Engage the left side of the front panel to the left catch
on the unit.
2 Push the panel forward until it locks. Be sure not to
press any buttons while you are attaching the panel.
BASIC OPERATION,
AUDIO AND CLOCK
ADJUSTMENT
PWR/MUTE SEL
AUDIO CONTROL
DISP
i/k
BAND
Turning the unit on/off
• Press PWR/MUTE to turn on the unit. The unit also
turns on when you insert a CD.
• Press and hold PWR/MUTE until the unit turns off.
Note
Most operations described in this manual require
the unit to be turned on before starting the operation,
unless explicitly stated otherwise.
Changing the source mode
1 Press SRC.
Pressing SRC cycles through source modes in the
following order:
FM1 (FM2/FM3/AM1/AM2) → CD* → AUX
↑
* “CD” does not appear in the display when there is no
CD in the unit.
SRC
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Note
Do not touch the connector on the reverse side of the
front panel. This could cause a poor or faulty connection.
Adjusting the volume
1 Turn AUDIO CONTROL.
VOL (volume) indicator flashes.
Muting the sound
1 Press PWR/MUTE briefly.
MUTE indicator flashes.
To restore volume, briefly press PWR/MUTE again.
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Adjusting sound
You can select the following modes for adjusting sound
depending on the music you listen to: BASS (low
frequencies), TRE (high frequencies), BAL (left/right),
FAD (front/ rear) and H-BASS (high bass).
1 Press SEL repeatedly to select the mode to be
adjusted.
Pressing SEL cycles through the modes. The
selected mode’s indicator flashes.
2 Turn AUDIO CONTROL to increase/decrease the
level or to select on/off for the selected mode.
Note
Adjust the level or select on/off within 5 seconds, or the
selected mode will return to previous state.
Setting the clock
1Press and hold DISP until the clock indicator
flashes in the display.
2Press i (to set hour) or k (to set minute), and
then turn AUDIO CONTROL.
3Press DISP.
Displaying the clock
1 Press DISP.
To return to the former display, press DISP again.
RADIO OPERATION
Aligning the source levels
(Source Level Adjuster)
Volume may vary each time you change the source
mode. In this case, you can align each source mode’s
volume to almost the same level.
1 Press SRC or BAND repeatedly to select the desired
mode.
2 Press DISP while pressing SEL.
“LA 0” appears in the display.
3 Turn AUDIO CONTROL to adjust the level.
Note
Adjust the level within 5 seconds, or the selected mode
will be canceled.
Restoring the factory settings
1 Turn off the unit.
2 Press and hold DISP until “LA --” appears in the
display.
Note
You can restore the factory settings only for VOL, BASS,
TRE, BAL, FAD, and H-BASS, and aligned source
volume levels.
Muting button beep sounds
1 Turn off the unit.
2 Press and hold SEL until “bEEP” appears in the
display.
3 Turn AUDIO CONTROL to select on (level indicators
appear) or off (level indicators disappear).
4 Press SEL.
Tuning in to a station
(Seek/Manual Tuning)
LO
BAND
i/k
Stereo indicator Local indicator
Band indicator Frequency indication
1 Press BAND repeatedly to select the desired band
(FM1, FM2, FM3, AM1, or AM2).
2* Press i (to move to higher frequencies) or k (to
move to lower frequencies) to tune in to a station.
“ST” appears in the display when an FM station is
broadcasting in stereo, and receiving conditions are
good.
*Seek Tuning and Manual Tuning
• Press and hold i or k until seek Tuning starts.
The unit locates a station automatically (Seek Tuning).
• Press i or k repeatedly to search for a desired
station while increasing or decreasing the frequency
step by step (Manual Tuning).
To stop Seek Tuning, press i or k again.
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Monaural mode
When signals become weak, or reception becomes
poor, the unit automatically switches to Monaural mode
to reduce noise.
Local mode
Local mode allows you to tune in only to strong stations
during Seek Tuning.
1 Press LO before you start seek tuning.
“LO” appears in the display.
To return to Distant mode, press LO again.
“LO” disappears and the unit tunes in to all receivable
stations.
Using preset stations
You must preset stations before you can tune in a station
using preset station number buttons.
i/k
PS/A.ME
BAND
Preset station buttons 1 to 6
Preset station number
Presetting stations automatically
(Auto Memory)
1 Press BAND repeatedly to select the desired band
(FM1, FM2, FM3, AM1, or AM2).
2 Press and hold PS/A.ME until automatic presetting
starts.
The unit automatically stores up to 6 stations for
each band.
After completion of automatic presetting, the unit
tunes in to the station stored on preset station
button 1.
To cancel automatic presetting, press PS/A.ME again.
Checking the preset stations (Preset Scan)
1 Press PS/A.ME briefly.
Each preset station will be tuned in for 5 seconds in
order.
To cancel Preset Scan, press PS/A.ME again or any
preset station button.
Presetting stations manually
(Manual Memory)
1 Press BAND repeatedly to select the desired band
(FM1, FM2, FM3, AM1, or AM2).
2 Press i or k to tune in to a desired station (see
“Tuning in to a station” as well for another tuning
method).
3 Press and hold the desired preset station button until
the unit beeps.
Note
A newly preset station replaces the station on the same
band that was previously stored on that preset station
button.
Tuning in to a preset station
1 Press BAND repeatedly to select the desired band
(FM1, FM2, FM3, AM1 or AM2).
2 Press the preset station button on which the desired
station is stored.
Active tuning reception control (ATRC)
The unit automatically suppresses FM noise caused by
vehicle movement, and maintains sound quality.
CD PLAYER OPERATION
Playing a CD
You can play CDs, CD-Rs and CD-RWs using the
procedure described below.
SRC
r/t
1 Insert a CD.
“CD” appears in the display.
CD play starts.
If a CD is already inserted, press SRC repeatedly to
select CD play mode.
In normal play, when the last track finishes, the unit
returns to the first track and continues to play.
z
INT RNDM
REP 1
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Labeled-side up
Track number
CD indicator Elapsed playing time
To
Eject a CD
Skip to the next track
Go back to the beginning
of the current track
Each extra press skips
backward one extra track
Locate a specific point in
a track
Press
z
t
r
Press and hold r or
t until you find the
point.
Note
• When you play a CD that is already inserted, CD play
starts at the point where it stopped the previous time.
A newly inserted CD starts from the first track.
• A CD-R or CD-RW may take some time to start playing
back, but this is not a malfunction.
• If a CD-R or CD-RW with no data or incompatible data
is inserted, “E03” will appear in the display. The unit
cannot play such discs.
Intro Play
You can locate a desired track by monitoring the first 10
seconds of all the tracks on a CD.
1 Press INT during CD play.
“SCAN” appears in the display.
2 Press INT again when the desired track is played.
The unit returns to normal CD play.
One track Repeat Play
You can play a track repeatedly.
1 Press REP1 during CD play.
“REPEAT1” appears in the display.
To cancel One track Repeat Play, press REP1 again.
Random Play
You can play all the tracks in random order.
1 Press RNDM during CD play.
“RANDOM” appears in the display.
To cancel Random Play, press RNDM again.
Note
During Random Play, pressing r allows you to skip
only to the beginning of the current track, not to the
previous track.
AUXILIARY EQUIPMENT
Listening to a cassette/MD/MP3 portable
player or other equipment
You can listen to equipment connected to the unit. Refer
to the operating instructions for the corresponding
equipment for more detailed information.
Be sure to remove inserted CDs to prevent possible
damage to the unit before connecting the equipment.
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SRC
AUX jack
1 Connect a cassette/MD/MP3 portable player or other
equipment to the unit’s AUX jack (3.5 mm dia.).
2 Press SRC repeatedly until “AUX” appears in the
display.
During AUX mode, the clock display appears.
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OTHER FUNCTIONS
AUDIO
CONTROL
Changing the key illumination color
You can choose blue or red as the key illumination color.
1 Press and hold SRC until “ILL” appears in the
display.
2 Turn AUDIO CONTROL to select 1 (for blue) or 2
(for red).
Setting the dimmer of the display
1 Press and hold SEL until “D” appears in the display.
2 Turn AUDIO CONTROL to select “D 0 (bright)” or “D
1 (dimmed).”
SRC
CARD REMOTE
CONTROL
Names of parts
Preparations
A lithium battery is installed in the remote control at the
factory.
Before you use the remote control, be sure to remove
the insulating sheet by simply pulling it out.
Remote control (back)
Insulating sheet
Replacing the battery
1 Insert the tip of a pointed object A into the hole B
and pull out the battery holder to remove the lithium
battery (CR2025).
Remote control (back)
Battery holder
BAND TAPE
CD-CH
CD
SKIP
FFREW
TUNING / DISC
UP
DOWN
VOLUME
1 BAND button
2 TAPE button (This button is not available with this
unit.)
3 CD button
4 CD-CH button (CD changer only)
5 SKIP f/REW button
6 SKIP g/FF button
7 PS (preset) button
8 TUNING/DISC UP/DOWN buttons
9 VOLUME +/- buttons
2 Install a new lithium battery (CR2025) with the )
side facing up in the battery holder.
3 Push the battery holder into the unit until it clicks.
CAUTION
• Keep the lithium battery out of the reach of children. If
swallowed, consult a doctor immediately.
• To prevent a short circuit, never pinch the battery with
pliers, etc.
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TROUBLESHOOTING
Error code
In the following cases the corresponding error code
indication appears. Follow the suggestions below to
solve such problems. If the error code indication does
not disappear, consult an AIWA service center.
E03 Focus error. Check that the CD is loaded properly
(right side up, etc.), and the CD contains valid
data.
Reset button
If a CD does not operate properly, press the reset button
with a pointed object such as a pencil, etc. Note that all
your settings will be erased if this button is pressed.
Reset button
MAINTENANCE
Cleaning the front panel
Wipe the surface with a soft, dry cloth. Do not use liquid
cleaners or aerosol cleaners.
Cleaning the connector
The connector needs to be cleaned occasionally. Wipe
the surface of the connector with a cotton swab slightly
moistened with alcohol.
Back of the front panel
SPECIFICATIONS
RADIO SECTION
(FM)
Frequency Range: 87.5 MHz – 108 MHz
Usable Sensitivity: 12.7 dBf
50 dB Quieting Sensitivity: 17.2 dBf
IF Rejection: 100 dB
Frequency Response: 30 Hz – 15,000 Hz
S/N Ratio: 70 dB
Stereo Separation: 35 dB at 1 kHz
Alternate Channel Selectivity: 90 dB
Capture Ratio: 3 dB
(AM)
Frequency Range: 530 kHz – 1,710 kHz
Usable Sensitivity: 30 µV (30 dB)
CD SECTION
Frequency Response: 17 Hz – 20 kHz +0/–3 dB
Dynamic Range: More than 85 dB
Channel Separation: More than 60 dB
S/N Ratio: More than 90 dB
Wow/Flutter: Unmeasurable
AUDIO SECTION
Max. Power Output:45 W × 4 channels
AUX input
Input sensitivity (load impedance) AUX: 300 mV
(10 kΩ)
GENERAL
Power-Supply Voltage: 14.4 V (11 to 16 V
allowable), DC, negative ground
Load Impedance: 4 Ω
Tone Control:
Bass ± 10 dB at 100 Hz, Treble ± 10 dB at 10 kHz
Preamp Output Voltage (load impedance): 2.2 V
(10 kΩ)
Installed size: 182 (W) × 53 (H) × 155 (D) mm
1
(7
/4 (W) × 2 1/8 (H) × 6 1/8 (D) inches)
Supplied Accessory: Carrying case (1)
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CARD REMOTE CONTROL
Dimensions: approx. 33 (W) × 85 (H) × 7.5 (D) mm
5
(1
/16 (W) × 3 3/8 (H) × 5/16 (D) inches)
Weight: approx. 20g (0.7 oz.) (including battery)
• Specifications and external appearance are subject to
change without notice due to product improvement.
REAR PANEL
For details, refer to the separate “INSTALLATION AND
CONNECTIONS”.
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Printed in Indonesia
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