Aiwa CD Player CDC X237 User Manual

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  
 
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  
 
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  
 
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.  
“LOCALdisappearsandtheunittunesintoallreceivable  
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  
 
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  
 
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 k)  
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 k)  
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  
 
Sony Corporation Printed in Thailand  
 

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