CDX-A251C Sony CD Receiver Product Information

Features

Plays CD, CD-R, CD-RW, MP3/WMA/ATRAC 3 Drive S provides improved durability and excellent sound quality with the industries highest signal to noise ratio 120dB! EQ3 is one button audio processing Large, Easy to read display Sirius/XM compatible Changer control New unique design / User friendly operation (Big buttons / Big knob) Front Aux-Input for Easy Portable Audio Player connection Compatible with IPOD with XA110IP adapter Wireless Remote Supplied Wired remote compatible

Parts & Accessories

Description
Manual Harness IPOD adapter

Specifications:

Power requirement 12 volt DC Dimensions: 7.25W x 2.125H x 6.375D Weight 2 lbs. 10 oz. Maximum output power 52W x 4 @ 4 ohms RMS 23.2W x 4 @ 4 ohms, 5% THD Pre sub output

Part Number

2-664-237-11 1-776-207-82 XA-110IP
This model is new for model year 2007

2-664-237-11 (1)

FM/AM Compact Disc Player
Operating Instructions Mode demploi

Owners Record

The model and serial numbers are located on the bottom of the unit. Record the serial number in the space provided below. Refer to these numbers whenever you call upon your Sony dealer regarding this product. Model No. CDX-A251C Serial No.
To cancel the demonstration (DEMO) display, see page 9. Pour annuler laffichage de dmonstration (DEMO), see page 11.

CDX-A251C

2006 Sony Corporation

Welcome !

Thank you for purchasing this Sony Compact Disc Player. You can enjoy your drive with the following functions. CD playback You can play CD-DA (also containing CD TEXT*), CD-R/CD-RW (MP3/WMA files also containing Multi Session (page 12)) and ATRAC CD (ATRAC3 and ATRAC3plus format (page 13)).
Type of discs CD-DA Label on the disc

Warning

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 a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment.

MP3 WMA ATRAC CD

Radio reception You can store up to 6 stations per band (FM1, FM2, FM3, AM1 and AM2). BTM (Best Tuning Memory): the unit selects strong signal stations and stores them. Sound adjustment EQ3: You can select an equalizer curve for 7 music types. Optional unit operation You can also control optional CD/MD changers, in addition to playing with this unit. Auxiliary equipment connection An AUX input jack on the front of the unit allows connection of a portable audio device.
* A CD TEXT disc is a CD-DA that includes information such as disc, artist and track name.
CAUTION The use of optical instruments with this product will increase eye hazard.
Warning if your cars ignition has no ACC position After turning the ignition off, be sure to press and hold (OFF) on the unit until the display disappears. Otherwise, the display does not turn off and this causes battery drain.
For installation and connections, see the supplied installation/connections manual.

Table of Contents

Getting Started
Resetting the unit. 4 Setting the clock. 4 Detaching the front panel. 4 Attaching the front panel. 5

Other functions

Changing the sound settings. 9 Adjusting the sound characteristics BAL/FAD/SUB. 9 Customizing the equalizer curve EQ3. 9 Adjusting setup items SET. 9 Using optional equipment. 10 Auxiliary audio equipment. 10 CD/MD changer. 10 Rotary commander RM-X4S. 11
Location of controls and basic operations
Main unit. 6 Card remote commander RM-X151. 6
Display items. 8 Repeat and shuffle play. 8

Additional Information

Precautions. Notes on discs. About MP3/WMA files. About ATRAC CD. Maintenance. Removing the unit. Specifications. Troubleshooting. Error displays/Messages. 17
Storing and receiving stations. 8 Storing automatically BTM. 8 Storing manually. 8 Receiving the stored stations. 8 Tuning automatically. 8
The SAT Radio Ready logo indicates that this product will control a satellite radio tuner module (sold separately). Please see your nearest authorized Sony dealer for details on the satellite radio tuner module. SAT Radio, SAT Radio Ready, the SAT Radio and SAT Radio Ready logos and all related marks are trademarks of Sirius Satellite Radio Inc. and XM Satellite Radio Inc.
SonicStage and its logo are trademarks of Sony Corporation. ATRAC, ATRAC3, ATRAC3plus and their logos are trademarks of Sony Corporation.
Microsoft, Windows Media, and the Windows logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
Getting Started Resetting the unit

Before operating the unit for the first time, or after replacing the car battery or changing the connections, you must reset the unit. Detach the front panel and press the RESET button with a pointed object, such as a ball-point pen.
Detaching the front panel
You can detach the front panel of this unit to prevent theft.

Caution alarm

If you turn the ignition switch to the OFF position without detaching the front panel, the caution alarm will sound for a few seconds. The alarm will only sound if the built-in amplifier is used.
RESET button Note Pressing the RESET button will erase the clock setting and some stored contents.
Press (OFF). The unit is turned off. Press , then pull it off towards you.

Setting the clock

The clock uses a 12-hour digital indication.
Press and hold the select button. The setup display appears. Press the select button repeatedly until CLOCK-ADJ appears. Press (DSPL). The hour indication flashes. Rotate the volume control dial to set the hour and minute. To move the digital indication, press (DSPL). Press the select button. The setup is complete and the clock starts.
Notes Do not drop or put excessive pressure on the front panel and display window. Do not subject the front panel to heat/high temperature or moisture. Avoid leaving it in a parked car or on a dashboard/rear tray.
To display the clock, press (DSPL). Press (DSPL) again to return to the previous display.
With the card remote commander In step 4, to set the hour and minute, press M or m.
Attaching the front panel
Engage part A of the front panel with part B of the unit, as illustrated, and push the left side into position until it clicks.
Note Do not put anything on the inner surface of the front panel.

Main unit

Card remote commander RM-X151

OFF ATT

Refer to the pages listed for details. The corresponding buttons on the card remote commander control the same functions as those on the unit. A OFF button To power off; stop the source. B Number buttons CD/MD*1: (1)/(2): GP*2/ALBM*3 /+*4 To skip groups/albums (press); skip groups/albums continuously (press and hold). (3): REP 8, 11 (4): SHUF 8, 11 (6): PAUSE*5 To pause playback. To cancel, press again. Radio: To receive stored stations (press); store stations (press and hold). C SCRL (scroll) button 8 To scroll the display item. D CAT*6/BTM button 8 To start the BTM function (press and hold). E SEEK /+ buttons CD: To skip tracks (press); skip tracks continuously (press, then press again within about 1 second and hold); reverse/fastforward a track (press and hold). Radio: To tune in stations automatically (press); find a station manually (press and hold).

SOURCE

F Disc slot To insert the disc (label side up), playback starts. G Z (eject) button To eject the disc. H (front panel release) button 4 I AUX input jack 10 To connect a portable audio device. J Receptor for the card remote commander K RESET button (located behind the front panel) 4 L SENS button To improve weak reception: LOCAL/ MONO. M EQ3 (equalizer) button 9 To select an equalizer type (XPLOD, VOCAL, CLUB, JAZZ, NEW AGE, ROCK, CUSTOM or OFF). N SOURCE button To power on; change the source (Radio/CD/ MD*1/AUX/SAT*6). O Volume control dial/select button 9 To adjust volume (rotate); select setup items (press and rotate). P MODE button 8, 10 To select the radio band (FM/AM)/select the SAT tuner band (mode)*6/select the unit*7. Q DSPL (display)/DIM (dimmer) button 4, 8 To change display items (press); change the display brightness (press and hold). R Display window

The following buttons on the card remote commander have also different buttons/functions from the unit. ql < (.)/, (>) buttons To control CD/radio, the same as (SEEK) /+ on the unit. w; VOL (volume) +/ button To adjust volume. wa ATT (attenuate) button To attenuate the sound. To cancel, press again. ws SEL (select) button The same as the select button on the unit. wd M (+)/m () buttons To control CD, the same as (1)/(2) /+ on the unit. wf Number buttons To receive stored stations (press); store stations (press and hold).
When an MD changer is connected. When an ATRAC CD is played. When an MP3/WMA is played. If the changer is connected, the operation is different, see page 10. *5 When playing back on this unit. *6 When the SAT tuner is connected. *7 When a CD/MD changer is connected. *1 *2 *3 *4 Note If the unit is turned off and the display disappears, it cannot be operated with the card remote commander unless (SOURCE) on the unit is pressed, or a disc is inserted to activate the unit first. Tip For details on how to replace the battery, see Replacing the lithium battery of the card remote commander on page 13.
For details on selecting a CD/MD changer, see page 10.
Radio Storing and receiving stations

Caution

When tuning in stations while driving, use Best Tuning Memory (BTM) to prevent an accident.

Display items

Storing automatically BTM
Press (SOURCE) repeatedly until TUNER appears. To change the band, press (MODE) repeatedly. You can select from FM1, FM2, FM3, AM1 or AM2. Press and hold (BTM) until BTM flashes. The unit stores stations in order of frequency on the number buttons. A beep sounds when the setting is stored.
A Source B WMA/MP3/ATRAC CD indication C Track number/Elapsed playing time, Disc/ artist name, Album/group number*1, Album/ group name, Track name, Text information*2, Clock
*1 Album/group number is displayed only when the album/group is changed. *2 When playing an MP3, ID3 tag is displayed, when playing ATRAC CD, text information written by SonicStage, etc., is displayed, and when playing WMA, WMA tag is displayed.

Storing manually

To change display items C, press (DSPL); scroll display items C, press (SCRL) or set A.SCRL-ON (page 9).
Tip Displayed items will differ, depending on the disc type, recorded format and settings. For details on MP3/ WMA, see page 12; ATRAC CD, see page 13.
While receiving the station that you want to store, press and hold a number button ((1) to (6)) until MEM appears. The number button indication appears in the display.
Note If you try to store another station on the same number button, the previously stored station will be replaced.
Receiving the stored stations Repeat and shuffle play
During playback, press (3) (REP) or (4) (SHUF) repeatedly until the desired setting appears.

To play

Select the band, then press a number button ((1) to (6)).

Tuning automatically

Select
REP-TRACK REP-ALBM*1 REP-GP*
track repeatedly. album repeatedly. group repeatedly. album in random order. group in random order. disc in random order.
Select the band, then press (SEEK) /+ to search for the station. Scanning stops when the unit receives a station. Repeat this procedure until the desired station is received.
SHUF-ALBM*1 SHUF-GP*2 SHUF-DISC
Tip If you know the frequency of the station you want to listen to, press and hold (SEEK) /+ to locate the approximate frequency, then press (SEEK) /+ repeatedly to fine adjust to the desired frequency (manual tuning).
*1 When an MP3/WMA is played. *2 When an ATRAC CD is played.
To return to normal play mode, select REPOFF or SHUF-OFF.
Other functions Changing the sound settings
Adjusting the sound characteristics BAL/FAD/SUB
You can adjust the balance, fader, and subwoofer volume.
Tip Other equalizer types are also adjustable. With the card remote commander In step 3, to adjust the selected item, press <, M, , or m.
Adjusting setup items SET
Press and hold the select button. The setup display appears. Press the select button repeatedly until the desired item appears. Rotate the volume control dial to select the setting (example ON or OFF). Press and hold the select button. The setup is complete and the display returns to normal play/reception mode.
Press the select button repeatedly until BAL, FAD or SUB appears. The item changes as follows: LOW*1 t MID*1 t HI*1 t BAL (left-right) t FAD (front-rear) t SUB (subwoofer volume)*2 t AUX*3
*1 When EQ3 is activated (page 9). *2 When the audio output is set to SUB (page 9). ATT is displayed at the lowest setting, and can be adjusted up to 20 steps. *3 When AUX source is activated (page 10).

Rotate the volume control dial to adjust the selected item. After 3 seconds, the setting is complete and the display returns to normal play/reception mode.
Note Displayed items will differ, depending on the source and setting. With the card remote commander In step 3, to select the setting, press < or ,.
With the card remote commander In step 2, to adjust the selected item, press <, M, , or m.
The following items can be set (follow the page reference for details): z indicates the default settings. CLOCK-ADJ (Clock Adjust) (page 4) BEEP To set BEEP-ON (z) or BEEP-OFF. AUX-A*1 (AUX Audio) To turn the AUX source display AUX-A-ON (z) or AUX-A-OFF (page 10). SUB/REAR*1 To switch the audio output. SUB-OUT (z): to output to a subwoofer. REAR-OUT: to output to a power amplifier. DIM (Dimmer) To change the brightness of the display. DIM-ON: to dim the display. DIM-OFF (z): to deactivate the dimmer. ILM-1/ILM-2 (Illumination) To change the illumination color: ILM-1 (z) or ILM-2. DEMO*1 (Demonstration) To set DEMO-ON (z) or DEMO-OFF. A.SCRL (Auto Scroll) To scroll long displayed item automatically when the disc/album/group/track is changed. A.SCRL-ON: to scroll. A.SCRL-OFF (z): to not scroll. continue to next page t
Customizing the equalizer curve EQ3
CUSTOM of EQ3 allows you to make your own equalizer settings.
Select a source, then press (EQ3) repeatedly to select CUSTOM. Press the select button repeatedly until LOW, MID or HI appears. Rotate the volume control dial to adjust the selected item. The volume level is adjustable in 1 dB steps, from 10 dB to +10 dB.
Repeat steps 2 and 3 to adjust the equalizer curve. To restore the factory-set equalizer curve, press and hold the select button before the setting is complete. After 3 seconds, the setting is complete and the display returns to normal play/reception mode.
LPF*2 (Low Pass Filter) To select the subwoofer cut-off frequency: LPF OFF (z), LPF125Hz or LPF 78Hz.
*1 When the unit is turned off. *2 When the audio output is set to SUB.

Adjust the volume level

Be sure to adjust the volume for each connected audio device before playback. 1 Turn down the volume on the unit. 2 Press (SOURCE) repeatedly until AUX FRONT IN appears. 3 Start playback of the portable audio device at a moderate volume. 4 Set your usual listening volume on the unit. 5 Press the select button repeatedly until AUX appears, and rotate the volume control dial to adjust the input level (6 dB).

Using optional equipment

Auxiliary audio equipment
By connecting an optional portable audio device to the AUX input jack (stereo mini jack) on the unit and then simply selecting the source, you can listen on your car speakers. The volume level is adjustable for any difference between the unit and the portable audio device. Follow the procedure below:

CD/MD changer

Selecting the changer
1 Press (SOURCE) repeatedly until CD or MD appears. 2 Press (MODE) repeatedly until the desired changer appears.

Unit number

Connecting the portable audio device
1 Turn off the portable audio device. 2 Turn down the volume on the unit. 3 Connect to the unit.

Disc number

Playback starts.
Skipping albums and discs
1 During playback, press (1)/(2) (GP/ALBM /+).

To skip Press (1)/(2)

Connecting cord* (not supplied)

album album continuously

and release (hold for a moment). within 2 seconds of first releasing. repeatedly. then, press again within 2 seconds and hold.
* Be sure to use a straight type plug.

discs discs continuously

Repeat and shuffle play
1 During playback, press (3) (REP) or (4) (SHUF) repeatedly until the desired setting appears.

Select To play

The following controls on the rotary commander require a different operation from the unit. PRESET/DISC control To select preset stations; control CD, the same as (1)/(2) (GP/ALBM /+) on the unit (push in and rotate). VOL (volume) control The same as the volume control dial on the unit (rotate). SEEK/AMS control The same as (SEEK) /+ on the unit (rotate, or rotate and hold).
REP-DISC*1 SHUFCHGR*1 SHUF-ALL*2
disc repeatedly. tracks in the changer in random order. tracks in all units in random order.
*1 When one or more CD/MD changers are connected. *2 When one or more CD changers, or two or more MD changers are connected.
Changing the operative direction
The operative direction of the controls is factoryset as shown below.

To increase

Tip SHUF-ALL will not shuffle tracks between CD units and MD changers.

To decrease

Rotary commander RM-X4S

Attaching the label

Attach the indication label depending on how you mount the rotary commander.
If you need to mount the rotary commander on the right hand side of the steering column, you can reverse the operative direction. 1 While pushing the VOL control, press and hold (SEL).

SEL MODE DSPL

DSPL MODE SEL

Location of controls

The corresponding buttons on the rotary commander control the same functions as those on this unit.

ATT SEL PRESET/ DISC

SOURCE DSPL VOL SEEK/AMS OFF
Additional Information Precautions

If your car has been parked in direct sunlight, allow the unit to cool off before operating it. Power antenna will extend automatically while the unit is operating.
Before playing, clean the discs with a commercially available cleaning cloth. Wipe each disc from the center out. Do not use solvents such as benzine, thinner, commercially available cleaners, or antistatic spray intended for analog discs.
Notes on CD-R/CD-RW discs
Some CD-Rs/CD-RWs (depending on the equipment used for its recording or the condition of the disc) may not play on this unit. You cannot play a CD-R/a CD-RW that is not finalized.

Moisture condensation

On a rainy day or in a very damp area, moisture condensation may occur inside the lenses and display of the unit. Should this occur, the unit will not operate properly. In such a case, remove the disc and wait for about an hour until the moisture has evaporated.
Music discs encoded with copyright protection technologies
This product is designed to play back discs that conform to the Compact Disc (CD) standard. Recently, various music discs encoded with copyright protection technologies are marketed by some record companies. Please be aware that among those discs, there are some that do not conform to the CD standard and may not be playable by this product.
To maintain high sound quality
Be careful not to splash juice or other soft drinks onto the unit or discs.

Notes on discs

To keep a disc clean, do not touch its surface. Handle the disc by its edge. Keep your discs in their cases or disc magazines when not in use. Do not subject discs to heat/high temperature. Avoid leaving them in a parked car or on a dashboard/rear tray. Do not attach labels, or use discs with sticky ink/ residue. Such discs may stop spinning when used, causing a malfunction, or may ruin the disc.

Note on DualDiscs

A DualDisc is a two sided disc product which mates DVD recorded material on one side with digital audio material on the other side. However, since the audio material side does not conform to the Compact Disc (CD) standard, playback on this product is not guaranteed.

About MP3/WMA files

MP3, which stands for MPEG-1 Audio Layer-3, is a music file compression format standard. It compresses audio CD data to approximately 1/10 of its original size. WMA, which stands for Windows Media Audio, is another music file compression format standard. It compresses audio CD data to approximately 1/22* of its original size.

* only for 64 kbps

Do not use any discs with labels or stickers attached. The following malfunctions may result from using such discs: Inability to eject a disc (due to a label or sticker peeling off and jamming the eject mechanism). Inability to read audio data correctly (e.g., playback skipping, or no playback) due to heat shrinking of a sticker or label causing a disc to warp. Discs with non-standard shapes (e.g., heart, square, star) cannot be played on this unit. Attempting to do so may damage the unit. Do not use such discs. You cannot play 8 cm (3 1/4 in) CDs.
The unit is compatible with the ISO 9660 level 1/ level 2 format, Joliet/Romeo in the expansion format, and Multi Session. The maximum number of: folders (albums): 150 (including root and empty folders). MP3/WMA files (tracks) and folders contained in a disc: 300 (if a folder/file names contain many characters, this number may become less than 300). displayable characters for a folder/file name is 32 (Joliet), or 64 (Romeo). ID3 tag versions 1.0, 1.1, 2.2, 2.3 and 2.4 apply to MP3 only. ID tag is 15/30 characters (1.0 and 1.1), or 63/126 characters (2.2, 2.3 and 2.4). WMA tag is 63 characters.
Playback order of MP3/WMA files
MP3/WMA Folder (album) MP3/WMA file (track)

ATRAC CD

ATRAC CD is recorded audio CD data which is compressed to ATRAC3 or ATRAC3plus format using authorized software, such as SonicStage 2.0 or later, or SonicStage Simple Burner. The maximum number of: folders (groups): 255 files (tracks): 999 The characters for a folder/file name and text information written by SonicStage is displayed. For details on ATRAC CD, see the SonicStage or SonicStage Simple Burner manual.
Note Be sure to create the ATRAC CD using authorized software, such as SonicStage 2.0 or later, or SonicStage Simple Burner 1.0 or 1.1.
Notes When naming an MP3 file/WMA file, be sure to add the file extension.mp3/.wma to the file name. During playback of a VBR (variable bit rate) MP3/ WMA file or fast-forward/reverse, elapsed playing time may not display accurately. When the disc is recorded in Multi Session, only the first track of the first session format is recognized and played (any other format is skipped). The priority of the format is CD-DA, ATRAC CD and MP3/WMA. When the first track is a CD-DA, only CD-DA of the first session is played. When the first track is not a CD-DA, an ATRAC CD or MP3/WMA session is played. If the disc has no data in any of these formats, NO MUSIC is displayed. Notes on MP3 Be sure to finalize the disc before using on the unit. If you play a high-bit-rate MP3, such as 320 kbps, sound may be intermittent. Notes on WMA Files made with lossless compression are not playable. Files protected by copyright are not playable.

If you have any questions or problems concerning your unit that are not covered in this manual, consult your nearest Sony dealer.

Maintenance

Replacing the lithium battery of the card remote commander
Under normal conditions, the battery will last approximately 1 year. (The service life may be shorter, depending on the conditions of use.) When the battery becomes weak, the range of the card remote commander becomes shorter. Replace the battery with a new CR2025 lithium battery. Use of any other battery may present a risk of fire or explosion.

+ side up

About ATRAC CD

ATRAC3plus format

ATRAC3, which stands for Adaptive Transform Acoustic Coding3, is audio compression technology. It compresses audio CD data to approximately 1/10 of its original size. ATRAC3plus, which is an extended format of ATRAC3, compresses the audio CD data to approximately 1/20 of its original size. The unit accepts both ATRAC3 and ATRAC3plus format.
Notes on the lithium battery Keep the lithium battery out of the reach of children. Should the battery be swallowed, immediately consult a doctor. Wipe the battery with a dry cloth to assure a good contact. Be sure to observe the correct polarity when installing the battery. Do not hold the battery with metallic tweezers, otherwise a short-circuit may occur.

WARNING

Battery may explode if mistreated. Do not recharge, disassemble, or dispose of in fire.

continue to next page t

Fuse replacement
When replacing the fuse, be sure to use one matching the amperage rating stated on the original fuse. If the fuse blows, check the power connection and replace the fuse. If the fuse blows again after replacement, there may be an internal malfunction. In such a case, consult your nearest Sony dealer.
3 Pull out the release keys to remove the protection collar.

Fuse (10A)

Remove the unit. 1 Insert both release keys simultaneously until they click.

Hook facing inwards.

Cleaning the connectors
The unit may not function properly if the connectors between the unit and the front panel are not clean. In order to prevent this, detach the front panel (page 4) and clean the connectors with a cotton swab dipped in alcohol. Do not apply too much force. Otherwise, the connectors may be damaged.

2 Pull the release keys to unseat the unit.
Main unit Back of the front panel
Notes For safety, turn off the ignition before cleaning the connectors, and remove the key from the ignition switch. Never touch the connectors directly with your fingers or with any metal device.
3 Slide the unit out of the mounting.

Removing the unit

Remove the protection collar. 1 Detach the front panel (page 4). 2 Engage the release keys together with the protection collar.

Specifications

AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION 23.2 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than 5 % total harmonic distortion.
Orient the release keys as shown.
CEA2006 Standard Power Output: 17 Watts RMS 4 at 4 Ohms < 1% THD+N SN Ratio: 82 dBA (reference: 1 Watt into 4 Ohms)

CD Player section

Signal-to-noise ratio: 120 dB Frequency response: 10 20,000 Hz Wow and flutter: Below measurable limit

Tuner section

Tuning range: 87.5 107.9 MHz Antenna terminal: External antenna connector Intermediate frequency: 10.7 MHz/450 kHz Usable sensitivity: 9 dBf Selectivity: 75 dB at 400 kHz Signal-to-noise ratio: 67 dB (stereo), 69 dB (mono) Harmonic distortion at 1 kHz: 0.5 % (stereo), 0.3 % (mono) Separation: 35 dB at 1 kHz Frequency response: 30 15,000 Hz
US and foreign patents licensed from Dolby Laboratories. MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and Thomson.
Note This unit cannot be connected to a digital preamplifier or an equalizer which is Sony BUS system compatible. Design and specifications are subject to change without notice.
Tuning range: 530 1,710 kHz Antenna terminal: External antenna connector Intermediate frequency: 10.7 MHz/450 kHz Sensitivity: 30 V

Power amplifier section

Outputs: Speaker outputs (sure seal connectors) Speaker impedance: ohms Maximum power output: 52 W 4 (at 4 ohms)

General

Outputs: Audio outputs terminal (sub/rear switchable) Power antenna relay control terminal Power amplifier control terminal Inputs: Telephone ATT control terminal BUS control input terminal BUS audio input terminal Remote controller input terminal Antenna input terminal AUX input jack (stereo mini jack) Tone controls: Low: 10 dB at 60 Hz (XPLOD) Mid: 10 dB at 1 kHz (XPLOD) High: 10 dB at 10 kHz (XPLOD) Power requirements: 12 V DC car battery (negative ground) Dimensions: Approx. 178 mm (7 1/7 1/8 in) (w/h/d) Mounting dimensions: Approx. 162 mm (7 1/1/1/2 in) (w/h/d) Mass: Approx. 1.2 kg (2 lb 11 oz) Supplied accessories: Card remote commander: RM-X151 Parts for installation and connections (1 set) Optional accessories/equipment: Rotary commander: RM-X4S BUS cable (supplied with an RCA pin cord): RC-61 (1 m), RC-62 (2 m) CD changer (10 discs): CDX-757MX CD changer (6 discs): CDX-T69 MD changer (6 discs): MDX-66XLP Source selector: XA-C30 AUX-IN selector: XA-300

Lead-free solder is used for soldering certain parts. (more than 80 %) Halogenated flame retardants are not used in the certain printed wiring boards. Halogenated flame retardants are not used in cabinets. VOC (Volatile Organic Compound)-free vegetable oil based ink is used for printing the carton. Packaging cushions do not use polystyrene foam.

Troubleshooting

The following checklist will help you remedy problems you may encounter with your unit. Before going through the checklist below, check the connection and operating procedures.
No power is being supplied to the unit. Check the connection. If everything is in order, check the fuse. If the unit is turned off and the display disappears, it cannot be operated with the remote commander. t Turn on the unit. The power antenna does not extend. The power antenna does not have a relay box. No sound. The volume is too low. The ATT function is activated, or the Telephone ATT function (when the interface cable of a car telephone is connected to the ATT lead) is activated. The position of the fader control FAD is not set for a 2-speaker system. The CD changer is incompatible with the disc format (MP3/WMA/ATRAC CD). t Play back with a Sony MP3 compatible CD changer, or this unit. No beep sound. The beep sound is canceled (page 9). An optional power amplifier is connected and you are not using the built-in amplifier.
Your dealer may not handle some of the above listed accessories. Please ask the dealer for detailed information.
The contents of the memory have been erased. The RESET button has been pressed. t Store again into the memory. The power connecting lead or battery has been disconnected. The power connecting lead is not connected properly. Stored stations and correct time are erased. The fuse has blown. Makes noise when the position of the ignition key is switched. The leads are not matched correctly with the cars accessory power connector. The display disappears from/does not appear in the display window. The dimmer is set DIM-ON (page 9). The display disappears if you press and hold (OFF). t Press and hold (OFF) on the unit until the display appears. The connectors are dirty (page 14).
MS or MD does not appear on the source display when both the optional MGS-X1 and MD changer are connected. This unit recognizes MGS-X1 as an MD unit. t Press (SOURCE) until MS or MD appears, then press (MODE) repeatedly.

Radio reception

The stations cannot be received. The sound is hampered by noises. Connect a power antenna control lead (blue) or accessory power supply lead (red) to the power supply lead of a cars antenna booster (only when your car has built-in FM/AM antenna in the rear/side glass). Check the connection of the car antenna. The auto antenna will not go up. t Check the connection of the power antenna control lead. Check the frequency. Preset tuning is not possible. Store the correct frequency in the memory. The broadcast signal is too weak. Automatic tuning is not possible. Setting of the local seek mode is not correct. t Tuning stops too frequently: Press (SENS) until LOCAL-ON appears. t Tuning does not stop at a station: Press (SENS) repeatedly until MONO-ON or MONO-OFF (FM), or LOCAL-OFF (AM) appears. The broadcast signal is too weak. t Perform manual tuning. During FM reception, the ST indication flashes. Tune in the frequency accurately. The broadcast signal is too weak. t Press (SENS) to set the monaural reception mode to MONO-ON. An FM program broadcast in stereo is heard in monaural. The unit is in monaural reception mode. t Press (SENS) until MONO-OFF appears.

CD/MD playback

The disc cannot be loaded. Another disc is already loaded. The disc has been forcibly inserted upside down or in the wrong way. The disc does not playback. Defective or dirty disc. The CD-Rs/CD-RWs are not for audio use (page 12). MP3/WMA files cannot be played back. The disc is incompatible with the MP3/WMA format and version (page 12). MP3/WMA files take longer to play back than others. The following discs take a longer time to start playback. a disc recorded with a complicated tree structure. a disc recorded in Multi Session. a disc to which data can be added. The ATRAC CD cannot play. The disc is not created by authorized software, such as SonicStage or SonicStage Simple Burner. Tracks that are not included in the group cannot be played. The display items do not scroll. For discs with very many characters, those may not scroll. A.SCRL is set to OFF. t Set A.SCRL-ON (page 9) or press (SCRL). The sound skips. Installation is not correct. t Install the unit at an angle of less than 45 in a sturdy part of the car. Defective or dirty disc. The operation buttons do not function. The disc will not eject. Press the RESET button (page 4).

Error displays/Messages

BLANK*1 Tracks have not been recorded on the MD.*2 t Play an MD with recorded tracks. ERROR*1 The disc is dirty or inserted upside down.*2 t Clean or insert the disc correctly. A blank disc has been inserted. The disc cannot play because of some problem. t Insert another disc. FAILURE (Illuminates until any button is pressed.) The connection of speakers/amplifiers is incorrect. t See the installation guide manual of this model to check the connection. FAILURE (Illuminates for about 1 second.) When the XM tuner is connected, storing an XM radio channel into a preset failed. t Be sure to receive the channel that you want to store, then try it again. LOAD The changer is loading the disc. t Wait until loading is complete. L. SEEK +/ The local seek mode is on during automatic tuning. NO DISC The disc is not inserted in the CD/MD changer. t Insert discs in the changer. NO ID3 ID3 tag information is not written in the MP3 file. NO INFO Text information is not written in the ATRAC3/ ATRAC3plus or WMA file. NO MAG The disc magazine is not inserted in the CD changer. t Insert the magazine in the changer. NO MUSIC The disc is not a music file. t Insert a music CD in this unit or MP3 playable changer. NO NAME A track/album/group/disc name is not written in the track. NOT READ The disc information has not been read by the unit. t Load the disc, then select it on the list. NOTREADY The lid of the MD changer is open or the MDs are not inserted properly. t Close the lid or insert the MDs properly. OFFSET There may be an internal malfunction. t Check the connection. If the error indication remains on in the display, consult your nearest Sony dealer.