3-251-485-11(1)
FM/AM Compact Disc Player
CDC-X237
Owner’s Record
For your convenience, record the 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-X237
Serial No.
2003 Sony Corporation
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THEFT PROTECTION
BASIC OPERATION,
AUDIO AND CLOCK
ADJUSTMENT
Take the front panel with you when leaving the car, and
keep it in the supplied carrying case.
Detaching the front panel
PWR/ATT
Before detaching the front panel, remove the CD to
prevent possible damage to the unit.
SEL
Jog dial (PUSH-SOURCE)
1
2
3
Press z to remove the CD.
Press and hold PWR/ATT until the unit turns off.
Press %. (Hold the panel with one hand to prevent
accidentally dropping it.)
4
Remove the panel.
DSPL TU (TUNER)
+ –
/
Turning the unit on/off
• Press PWR/ATT to turn on the unit. The unit also turns
on when you insert a CD.
• Press and hold PWR/ATT until the unit turns off.
Note
Most operations described in this manual require
theunittobeturnedonbeforestartingtheoperation,
unless explicitly stated otherwise.
Attaching the front panel
1
2
Engagetheleftsideofthefrontpaneltotheleftcatch
on the unit.
Push the panel forward until it locks. Be sure not to
press any buttons while you are attaching the panel.
Changing the source mode
1
Press Jog dial (PUSH-SOURCE).
PressingJogdial(PUSH-SOURCE)cyclesthrough
source modes in the following order:
TUNER (FM1/FM2/FM3/AM1/AM2) → CD* → AUX
↑
* “CD” does not appear in the display when there is no
CD in the unit.
Adjusting the volume
1
Turn Jog dial.
VOLUME indicator appears.
Note
Do not touch the connector on the reverse side of the
front panel. This could cause a poor or faulty connection.
Muting the sound
1
Press PWR/ATT briefly.
ATT indicator flashes.
To restore volume, briefly press PWR/ATT again.
ENGLISH 2
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Adjusting sound
Setting the clock
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).
1Press and hold DSPL until the clock indicator
flashes on the display.
2Press + (to set hour) or – (to set minute), and then
turn Jog dial.
1
Press SEL repeatedly to select the mode to be
adjusted.
3Press DSPL.
Pressing SEL cycles through the modes. The
selected mode’s indicator appears.
Turn Jog dial to increase/decrease the level or to
select on/off for the selected mode.
Displaying the clock
2
1
Press DSPL.
To return to the former display, press DSPL again.
Note
Adjust the level or select on/off within 5 seconds, or the
selected mode will return to previous state.
RADIO OPERATION
Tuning in to a station
(Seek/Manual Tuning)
LO
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
2
3
Press Jog dial (PUSH-SOURCE) or TU (TUNER)
repeatedly to select the desired mode.
Press DSPL while pressing SEL.
“LA 0” appears on the display.
Turn Jog dial to adjust the level.
+ –
/
TU (TUNER)
Local indicator
Stereo indicator
Note
Adjust the level within 5 seconds, or the selected mode
will be canceled.
Restoring the factory settings
Frequency
indication
TUNER
indicator
Band indicator
1
2
Turn off the unit.
Press and hold DSPL until “LA --” appears on the
1
Press TU (TUNER) repeatedly to select the desired
band (FM1, FM2, FM3, AM1, or AM2).
display.
Note
2* Press + (to move to higher frequencies) or – (to
move to lower frequencies) to tune in to a station.
“STEREO” appears on the display when an FM
station is broadcasting in stereo, and receiving
conditions are good.
YoucanrestorethefactorysettingsonlyforVOL,BASS,
TRE, BAL, FAD, and H-BASS, and aligned source
volume levels.
*Seek Tuning and Manual Tuning
Setting the beep tone
• Press and hold + or – until seek Tuning starts.
The unit locates a station automatically (Seek Tuning).
• Press + or – repeatedly to search for a desired station
while increasing or decreasing the frequency step by
step (Manual Tuning).
1
2
Turn off the unit.
Press and hold SEL until “bEEP” appears on the
display.
Turn Jog dial to select on (level indicators appear)
or off (level indicators disappear).
Press SEL.
3
4
To stop Seek Tuning, press + or – again.
3 ENGLISH
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Monaural mode
Presetting stations manually
(Manual Memory)
When signals become weak, or FM reception becomes
poor, the unit automatically switches to Monaural mode
to reduce noise.
1
Press TU (TUNER) repeatedly to select the desired
band (FM1, FM2, FM3, AM1, or AM2).
Press + or – to tune in to a desired station (see
“Tuning in to a station” as well for another tuning
method).
Local mode
2
Local mode allows you to tune in only to strong stations
during Seek Tuning.
3
Pressandholdthedesiredpresetstationbuttonuntil
the unit beeps.
1
Press LO before you start seek tuning.
“LOCAL” appears on the display.
To return to Distant mode, press LO again.
“LOCAL”disappearsandtheunittunesintoallreceivable
stations.
Note
A newly preset station replaces the station on the same
band that was previously stored on that preset station
button.
Using preset stations
Tuning in to a preset station
Youmustpresetstationsbeforeyoucantuneinastation
using preset station number buttons.
1
2
Press TU (TUNER) repeatedly to select the desired
band (FM1, FM2, FM3, AM1 or AM2).
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.
+ –
/
TU (TUNER)
Preset station buttons 1 to 6
PS/A.ME
CD PLAYER OPERATION
Playing a CD
Preset station number
You can play CDs, CD-Rs and CD-RWs using the
procedure described below.
Presetting stations automatically
(Auto Memory)
Jog dial (PUSH-SOURCE)
z
1
Press TU (TUNER) repeatedly to select the desired
band (FM1, FM2, FM3, AM1, or AM2).
Press and hold PS/A.ME until automatic presetting
starts.
2
The unit automatically stores up to 6 stations for
each band.
t/
g,
r/f
INT REP1 SHUF
After completion of automatic presetting, the unit
tunes in to the station stored on preset station
button 1.
1
Insert a CD.
CD indicator appears on the display.
CD play starts.
Tocancelautomaticpresetting,pressPS/A.MEagain.
If a CD is already inserted, press Jog dial (PUSH-
SOURCE) 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.
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.
ENGLISH 4
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Note
Labeled-side up
During Shuffle 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
Track number
player or other equipment
Youcanlistentoequipmentconnectedtotheunit. Refer
to the operating instructions for the corresponding
equipment for more detailed information.
Elapsed playing time
CD indicator
Be sure to remove inserted CDs to prevent possible
damage to the unit before connecting the equipment.
To
Press
Eject a CD
Skip to the next track
z
t/g
Go back to the beginning r/f
of the current track
Each extra press skips
backward one extra track
Jog dial (PUSH-SOURCE)
AUX jack
Locate a specific point in Press and hold r/f
1
2
Connectacassette/MD/MP3portableplayerorother
a track
or t/g until you find
the point.
equipment to the unit’s AUX jack (3.5 mm dia.).
Press Jog dial (PUSH-SOURCE) repeatedly until
“AUX” appears on the display.
Note
During AUX mode, the clock display appears.
• 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.
OTHER FUNCTIONS
SEL
• If a CD-R or CD-RW with no 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.
PS
1
Press INT during CD play.
Jog dial (PUSH-SOURCE)
“INTRO” appears on the display.
Changing the key illumination color
2
Press INT again when the desired track is played.
The unit returns to normal CD play.
Youcanchooseblueorredasthekeyilluminationcolor.
1
Press and hold Jog dial (PUSH-SOURCE) until
“ILL” appears on the display.
One track Repeat Play
You can play a track repeatedly.
2
Turn Jog dial to select “1 (for blue)” or “2 (for red).”
1
Press REP1 during CD play.
“REP1” appears on the display.
To cancel One track Repeat Play, press REP1 again.
Setting the dimmer of the display
1
2
Press and hold SEL until “D” appears in the display.
Turn Jog dial to select “0 (bright)” or “1 (dimmed).”
Shuffle Play
You can play all the tracks in random order.
1
Press SHUF during CD play.
“SHUF” appears on the display.
Displaying the VU level indicator
1
2
3
Turn off the unit.
To cancel Shuffle Play, press SHUF again.
Press and hold PS until “VU” appears in the display.
Turn Jog dial to selection (level indicators appear)
or off (level indicators disappear).
Press PS.
4
5 ENGLISH
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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.
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
E03 Focuserror.CheckthattheCDisloadedproperly
(right side up, etc.), and the CD contains valid
data.
Stereo Separation: 35 dB at 1 kHz
Alternate Channel Selectivity: 90 dB
Capture Ratio: 3 dB
Reset button
IfaCDdoesnotoperateproperly, presstheresetbutton
with a pointed object such as a pencil, etc. Note that all
your settings will be erased if this button is pressed.
(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
Reset button
Wow/Flutter: Unmeasurable
AUDIO SECTION
Max. Power Output: 45 W × 4 channels
MAINTENANCE
AUX input
Input sensitivity (load impedance) AUX: 300 mV
(10 kΩ)
Cleaning the front panel
Wipe the surface with a soft, dry cloth. Do not use liquid
cleaners or aerosol cleaners.
GENERAL
Cleaning the connector
Power-Supply Voltage: 14.4 V (11 to 16 V
allowable), DC, negative ground
Load Impedance: 4 Ω
The connector needs to be cleaned occasionally. Wipe
the surface of the connector with a cotton swab slightly
moistened with alcohol.
Tone Control:
Bass 10 dB at 100 Hz, Treble 10 dB at 10 kHz
Preamp Output Voltage (load impedance): 2.2 V
(10 kΩ)
Back of the front panel
Installed size: 182 (W) × 53 (H) × 155 (D) mm
(7 1/4 (W) × 2 1/8 (H) × 6 1/8 (D) inches)
Supplied Accessory: Carrying case (1)
• Specifications and external appearance are subject to
change without notice due to product improvement.
ENGLISH 6
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Sony Corporation Printed in Thailand
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