CDX-R6750 - Car stereo SONY - Free user manual and instructions

USER MANUAL CDX-R6750 SONY

• CD playback You can play CD-DA (also containing CD TEXT*), CD-R/CD-RW (MP3 files also containing Multi Session (page 15)) and ATRAC CD (ATRAC3 and ATRAC3plus format (page 16)). Type of discs masterpage:Left Warning if your car’s 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. Label on the disc CD-DA This label is located on the bottom of the chassis. The BBE MP process improves digitally compressed sound, such as MP3, by restoring and enhancing the higher harmonics lost through compression. BBE MP works by generating even-order harmonics from the source material, effectively recovering warmth, detail and nuance.

• Radio reception – You can store up to 6 stations per band (FM1, FM2, FM3, MW and LW). – BTM (Best Tuning Memory): the unit selects strong signal stations and stores them.
• RDS services You can use FM station with Radio Data System (RDS).
• Sound adjustment – EQ7: You can select an equalizer curve for 7 music types. – DSO (Dynamic Soundstage Organizer): creates a more ambient sound field, using virtual speaker synthesis, to enhance the sound of speakers, even if they are installed low in the door. – BBE MP: improves digitally compressed sound such as MP3. For details, see the following explanation.
• Optional unit operation You can also control optional CD/MD changers and optional Sony portable devices in addition to playing with this unit. SonicStage and its logo are trademarks of Sony Corporation. ATRAC, ATRAC3, ATRAC3plus and their logos are trademarks of Sony Corporation.

• A CD TEXT disc is a CD-DA that includes information such as disc, artist and track name.

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm 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 ballpoint pen. RESET button masterpage:Left 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.

Press (OFF). The unit is turned off.

Press , then pull it off towards you. Note Pressing the RESET button will erase the clock setting and some stored contents. (OFF) Setting the clock The clock uses a 24-hour digital indication. (With the card remote commander) 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.

Press (ENTER). Press M or m to set the hour and minute. To move the digital indication, press < or

Tip When carrying the front panel, use the supplied front panel case.

Press (ENTER). The clock starts. Attaching the front panel Press M or m repeatedly until “Clock Adjust” appears. To display the clock during playback/reception, set to “Clock-on” (page 12). 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. Tip You can set the clock automatically with the RDS feature (page 10). DEMO mode When the unit is turned off, the clock is displayed first, then demonstration (DEMO) mode starts the demonstration display. To cancel the DEMO mode, set to “Demo-off” (page 12) while the unit is turned off.

Note Do not put anything on the inner surface of the front panel.

Insert the disc label side up.

The disc is ejected. Note While inserting or ejecting the disc, do not close the shutter. The disc may be caught and damaged. Tip The disc can be played with the shutter opened or closed.

OPEN/CLOSE shutter opened

ATT OFF OPEN/CLOSE SCRL SOUND SOURCE EQ7 MODE REP SHUF

Card remote commander RM-X155

AF/TA 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 Volume +/– button To adjust volume. B ATT (attenuate) button To attenuate the sound. To cancel, press again. C SCRL (scroll) button 8 To scroll the display item. D SOUND button 11 To select sound items. E Display window F EQ7 (equalizer) button 2 To select an equalizer type (Xplod, Vocal, Club, Jazz, New Age, Rock, Custom or off).

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm G DSO button 2 To select the DSO mode (1, 2, 3 or off). The larger the number, the more enhanced the effect. H OFF button To power off/stop the source. I SEEK +/– button Radio: To tune in stations automatically (press); find a station manually (press and hold). CD: To skip tracks (press); skip tracks continuously (press, then press again within about 1 second and hold); fast-forward/ reverse a track (press and hold).

(front panel release) button 4 K SOURCE button To power on/change the source (Radio/CD/ MD*1/AUX*2). L MODE button 8, 12 To select the radio band (FM/MW/LW)/ select the unit*3. M RESET button (located behind the front panel) 4 N Number buttons Radio: To receive stored stations (press); store stations (press and hold). CD/MD*1: (1): REP 8 (2): SHUF 8 (5): BBE MP*4 2 To activate the BBE MP function, to set “BBE MP-on” during playback on this unit. To cancel, set “BBE MP-off.” masterpage:Right The following buttons on the card remote commander have also different buttons/functions from the unit. w; MENU button To enter menu. wa ENTER button To complete a setting. ws < (.)/, (>) buttons To control radio/CD, the same as (SEEK) +/– on the unit. wd DSPL (display)/PTY (Programme Type) button 8, 10, 13 To change display items; to select PTY in RDS. wf LIST button 9, 13 To list up. wg M (+)/m (–) buttons To control radio/CD, the same as (GP/PRESET) –/+ on the unit. *1 When an MD changer is connected. *2 When an optional Sony portable device is connected. *3 When a CD/MD changer is connected. *4 The unit only. *5 When an MP3/ATRAC CD is played and a changer is not connected. If the changer is connected, the operation is different, see page 12. 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 16. O AF (Alternative Frequencies)/TA (Traffic Announcement) button 9 To set AF and TA/TP in RDS. P GP*5/PRESET –/+ buttons To select preset stations/skip groups (press); skip groups continuously (press and hold). Q Receptor for the card remote commander R Disc slot 5 To insert the disc. S Z (eject) button 5 To eject the disc.

masterpage:Left Radio For details on connecting to a CD/MD changer, see page 12. Storing and receiving stations Caution Display items

When tuning in stations while driving, use Best Tuning Memory (BTM) to prevent an accident. Storing automatically — BTM (With the card remote commander)

A Source, Clock*1 B Group number/Track number/Elapsed playing time, Disc/artist name, Group name, Track name, Text information*2 *1 When the clock mode is set to “on” (page 12). *2 When playing an MP3, ID3 tag is displayed and when playing a ATRAC CD, text information written by SonicStage, etc. is displayed.

Press (SOURCE) repeatedly until “TUNER” appears. To change the band, press (MODE) repeatedly. You can select from FM1, FM2, FM3, MW or LW.

Press (MENU), then press M or m repeatedly until “BTM” appears.

Press (ENTER). The unit stores stations in order of frequency on the number buttons. A beep sounds when the setting is stored. To change display items B, press (DSPL) on the card remote commander; scroll display items B, press (SCRL) or set to “A.Scroll-on” (page 12). Tip Displayed items will differ, depending on the disc type, recorded format and settings. For details on MP3, see page 15; ATRAC CD, see page 16. Storing manually

Repeat and shuffle play

During playback, press (1) (REP) or (2) (SHUF) repeatedly until the desired setting appears. Select To play Repeat-Track track repeatedly. 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 previous stored station will be replaced. Tip When a RDS station is stored, the AF/TA setting is also stored (page 9). Repeat-Group* group repeatedly. SHUF-Group* group in random order. Receiving the stored stations SHUF-Disc

disc in random order.

• When an MP3/ATRAC CD is played. To return to normal play mode, select “Repeatoff” or “SHUF-off.” Tuning automatically

Select the band, then press a number button ((1) to (6)) or (GP/PRESET) –/+. 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. 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). CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm Receiving a station through a list — LIST You can list up the frequency. (With the card remote commander)

Select the band, then press (LIST). The frequency appears.

Press M or m repeatedly until the desired station appears. masterpage:Right TA (Traffic Announcement)/TP (Traffic Programme) Provides current traffic information/ programmes. Any information/programme received, will interrupt the currently selected source. PTY (Programme Types) Displays the currently received programme type. Also searches your selected programme type. CT (Clock Time) The CT data from the RDS transmission sets the clock.

Press (ENTER) to receive the station. RDS Overview FM stations with Radio Data System (RDS) service send inaudible digital information along with the regular radio programme signal. Display items

A TA/TP*1 B Radio band, Function, Clock*2 C Preset number D Frequency*3 (Station name), RDS data *1 “TA” flashes during traffic information. “TP” lights up while such a station is received. *2 When the clock mode is set to “on” (page 12). *3 While receiving the RDS station, “ *” is displayed on the left of the frequency indication. To change display items D, press (DSPL) on the card remote commander. RDS services This unit automatically provides RDS services as follows: AF (Alternative Frequencies) Selects and retunes the station with the strongest signal in a network. By using this function, you can continuously listen to the same programme during a long-distance drive without having to retune the same station manually. Notes

• Depending on the country/region, not all RDS functions may be available.
• RDS will not work if the signal strength is too weak, or if the station you are tuned to is not transmitting RDS data. Setting AF and TA/TP

Press (AF/TA) repeatedly until the desired setting appears. Select

AF-on activate AF and deactivate TA. TA-on activate TA and deactivate AF. AF, TA-on activate both AF and TA. AF, TA-off deactivate both AF and TA. Storing RDS stations with the AF and TA setting You can preset RDS stations along with the AF/ TA setting. If you use the BTM function, only RDS stations are stored with the same AF/TA setting. If you preset manually, you can preset both RDS and non-RDS stations with the AF/TA setting for each. 1 Set AF/TA, then store the station with BTM or manually. Presetting the volume of traffic announcements You can preset the volume level of the traffic announcements so as to not miss hearing them. 1 Press the volume +/– button repeatedly to adjust the volume level. 2 Press and hold (AF/TA) until “TA VOL” appears. continue to next page t

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm Receiving emergency announcements With AF or TA on, the emergency announcements will automatically interrupt the currently selected source. Staying with one regional programme — Regional When the AF function is on: this unit’s factory setting restricts reception to a specific region, so you will not be switched to another regional station with a stronger frequency. If you leave this regional programme’s reception area, set to “Regional-off” (page 12). Note This function does not work in the UK and in some other areas. Local Link function (UK only) This function enables you to select other local stations in the area, even if they are not stored on your number buttons. 1 During FM reception, press a number button ((1) to (6)) on which a local station is stored. 2 Within 5 seconds, press again a number button of the local station. Repeat this procedure until the local station is received. masterpage:Left Type of programmes News (News), Affairs (Current Affairs), Info (Information), Sport (Sports), Educate (Education), Drama (Drama), Culture (Culture), Science (Science), Varied (Varied), Pop M (Popular Music), Rock M (Rock Music), Easy M (Easy Listening), Light M (Light Classical), Classics (Classical), Other M (Other Music Type), Weather (Weather), Finance (Finance), Children (Children’s Programmes), Social A (Social Affairs), Religion (Religion), Phone In (Phone In), Travel (Travel), Leisure (Leisure), Jazz (Jazz Music), Country (Country Music), Nation M (National Music), Oldies (Oldies Music), Folk M (Folk Music), Document (Documentary) Note You cannot use this function in countries/regions where no PTY data is available. Setting CT

Set to “CT-on” (page 12). Notes

• The CT function may not work even though an RDS station is being received.
• There might be a difference between the time set by the CT function and the actual time. Selecting PTY (With the card remote commander)

Press (PTY) during FM reception. The current programme type name appears if the station is transmitting PTY data.

Press M or m repeatedly until the desired programme type appears.

Press (ENTER). The unit starts to search for a station broadcasting the selected programme type.

Changing the sound settings masterpage:Right Press M or m repeatedly to adjust the desired volume level. The volume level is adjustable in 1 dB steps, from –10 dB to +10 dB. Adjusting the sound characteristics You can adjust the bass, treble, balance, fader and subwoofer volume.

Select a source, then press (SOUND) repeatedly to select the desired item. The item changes as follows: Repeat steps 4 and 5 to adjust the equalizer curve. To restore the factory-set equalizer curve, press and hold (ENTER).

• “ATT” is displayed at the lowest setting, and can be adjusted up to 20 steps.

Press the volume +/– button repeatedly to adjust the selected item. After 3 seconds, the setting is complete and the display returns to normal play/reception mode. Press (MENU) twice. The setting is complete and the display returns to normal play/reception mode. Adjusting menu items — MENU You can adjust various menu settings by using the 4 arrow buttons on the card remote commander. (With the card remote commander) Note Adjust within 3 seconds of selecting the item. MENU LIST

With the card remote commander In step 2, to adjust the selected item, press < or ,. ENTER

Adjusting the equalizer curve — EQ7 Tune You can adjust and store the equalizer settings for different tone ranges. DSPL/PTY

Press (MENU). (With the card remote commander) SCRL Press M or m repeatedly until the desired item appears.

Press M or m repeatedly until “EQ7 Tune” appears, then press (ENTER). Press < or , to select the desired setting (example: “on” or “off”).

Press < or , repeatedly to select the desired equalizer type, then press (ENTER). Press (ENTER). The setting is complete and the display returns to normal play/reception mode.

Press < or , repeatedly to select the desired frequency. The frequency changes as follows: 62Hz y 157Hz y 396Hz y 1kHz y 2.5kHz y 6.3kHz y 16kHz Note Displayed items will differ, depending on the source and setting. Tip You can easily switch among categories by pressing and holding M or m. continue to next page t

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm The following items can be set (follow the page reference for details): “z” indicates the default settings. SETUP Clock Adjust (page 4) CT (Clock Time) To set “on” or “off” (z) (page 9, 10). Beep To set “on” (z) or “off.” RM (Rotary Commander) To change the operative direction of the rotary commander controls. – “Normal” (z): to use the rotary commander in the factory-set position. – “Reverse”: when you mount the rotary commander on the right side of the steering column. AUX-A*1 (AUX Audio) To turn the AUX source display “on” (z) or “off” (page 14). DSPL (Display) Clock (Clock Information) To display the clock and the display items at the same time. – “on”: to display at the same time. – “off” (z): to not display at the same time. Dimmer To change the brightness of the display. – “Auto” (z): to dim the display automatically when you turn lights on. – “on”: to dim the display. – “off”: to deactivate the dimmer. M.Dspl*2 (Motion Display) To select the Motion Display mode. – “SA” (z): to show moving patterns and spectrum analyzer. – “on”: to show moving patterns. – “off”: to deactivate the Motion Display. Demo*1 (Demonstration) To set “on” (z) or “off” (page 4). A.Scroll (Auto Scroll) To scroll long displayed item automatically when the disc/group/track is changed. – “on”: to scroll. – “off” (z): to not scroll. masterpage:Left Mono (Monaural mode) To improve poor FM reception, select monaural reception mode. – “on”: to hear stereo broadcasts in monaural. – “off” (z): to hear stereo broadcast in stereo. Regional*3 To set “on” (z) or “off” (page 10). SOUND EQ7 Tune (page 11) HPF (High Pass Filter) To select the front/rear speaker cut-off frequency: “off” (z), “78Hz” or “125Hz.” LPF (Low Pass Filter) To select the subwoofer cut-off frequency: “off” (z), “125Hz” or “78Hz.” Loudness To enhance bass and treble at lower volume. – “on”: to reinforce bass and treble. – “off” (z): to not reinforce bass and treble. AUX Level To adjust the volume level for each connected auxiliary equipment (page 14). This setting negates the need to adjust the volume level between sources. EDIT Name Edit (page 13) Name Delete (page 13) BTM (page 8) *1 When the unit is turned off. *2 When the unit is turned on. *3 When FM is received. Using optional equipment 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 P/M (Play Mode) Local (Local seek mode) – “on”: to only tune into stations with stronger signals. – “off” (z): to tune normal reception. Disc number Playback starts.

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm Skipping groups and discs 1 During playback, press (GP/PRESET) –/+. To skip Press (GP/PRESET) group and release (hold for a moment). group continuously within 2 seconds of first releasing. discs repeatedly. discs continuously then, press again within 2 seconds and hold. Repeat and shuffle play 1 During playback, press (1) (REP) or (2) (SHUF) repeatedly until the desired setting appears. Select To play Repeat-Disc*1 disc repeatedly. SHUFChanger*1 tracks in the changer in random order. SHUF-ALL*2 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. To return to normal play mode, select “Repeatoff” or “SHUF-off.” Tip “SHUF-ALL” will not shuffle tracks between CD units and MD changers. Labelling a disc When you play a disc in a CD changer with the CUSTOM FILE function, you can label each disc with a custom name up to 8 characters (Disc Memo). If you label a disc, the name appears on the list. (With the card remote commander) 1 While playing a disc that you want to label, press (MENU). 2 Press M or m repeatedly until “Name Edit” appears, then press (ENTER). masterpage:Right 3 Press M or m repeatedly until the desired character appears. The character changes as follows: A y B y C ... y 0 y 1 y 2 ... y + y – y ... y _ (blank space) y A To move the digital indication, press the < or Repeat this operation until the entire name is entered. 4 Press (ENTER). The labelling is complete and the display returns to normal play mode. To display the name, press (DSPL) during playback. Tips

• To correct or erase a character, overwrite or enter

• The Disc Memo always takes priority over any prerecorded title.
• You can label a disc on the unit if a changer with the CUSTOM FILE function is connected.
• “Repeat-Track” and all shuffle play are suspended until the labelling is complete. Deleting the custom name (With the card remote commander) 1 Select the unit that has stored the custom name you want to delete, then press (MENU). 2 Press M or m repeatedly until “Name Delete” appears, then press (ENTER). The stored name will appear. 3 Press M or m repeatedly to select the name you want to delete. 4 Press and hold (ENTER). The name is deleted. Repeat step 3 and 4 if you want to delete other names. 5 Press (MENU) twice. The unit returns to normal play mode. Locating a disc by name — LIST You can select a disc from the list when connecting a CD changer with the CUSTOM FILE function or an MD changer. If you assign a name to a disc, the name appears on the list. (With the card remote commander) 1 During playback, press (LIST). The disc number and disc name will appear. 2 Press M or m repeatedly until the desired disc appears. 3 Press (ENTER) to play the disc. continue to next page t

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm masterpage:Left 1 While pushing the VOL control, press and hold (SOUND). Rotary commander RM-X4S Attaching the label Attach the indication label depending on how you mount the rotary commander. DSPL MODE SOUND SOUND MODE DSPL Tip You can also change the operative direction of these controls in the menu (page 12). Location of controls The corresponding buttons on the rotary commander control the same functions as those on this unit. ATT SOUND PRESET/ DISC MODE OFF SOURCE DSPL VOL SEEK/AMS OFF The following controls on the rotary commander require a different operation from the unit.

• PRESET/DISC control The same as (GP/PRESET) –/+ on the unit (push in and rotate).
• VOL (volume) control The same as the volume +/– button on the unit (rotate).
• SEEK/AMS control The same as (SEEK) +/– on the unit (rotate, or rotate and hold). Auxiliary audio equipment You can connect optional Sony portable devices to the BUS AUDIO IN/AUX IN terminal on the unit. If the changer or other device is not connected to the terminal, the unit allows you to listen to the portable device on your car speakers. Note When connecting a portable device, be sure BUS CONTROL IN is not connected. If a device is connected to BUS CONTROL IN, “AUX” cannot be selected with (SOURCE). Tip When connecting both a portable device and a changer, use the optional AUX-IN selector. Selecting auxiliary equipment 1 Press (SOURCE) repeatedly until “AUX” appears. Operate by the portable device itself. To adjust the volume level of auxiliary equipment, see “AUX Level” on page 12. Changing the operative direction The operative direction of the controls is factoryset as shown below. To increase To decrease If you need to mount the rotary commander on the right hand side of the steering column, you can reverse the operative direction.

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm Additional Information Precautions

• If your car has been parked in direct sunlight, allow the unit to cool off before operating it.
• Power aerial will extend automatically while the unit is operating. 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. 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.

• 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 CDs. masterpage:Right

• Before playing, clean the discs with a commercially available cleaning cloth. Wipe each disc from the centre out. Do not use solvents such as benzine, thinner, commercially available cleaners, or antistatic spray intended for analogue 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. 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. About MP3 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.
• The unit is compatible with the ISO 9660 level 1/ level 2 format, Joliet/Romeo in the expansion format, ID3 tag version 1.0, 1.1, 2.2, 2.3 and 2.4, and Multi Session.
• The maximum number of: – folders (groups): 150 (including root and empty folders). – MP3 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 32/64 (Romeo); ID3 tag is 15/30 characters (1.0, 1.1, 2.2 and 2.3), or 63/126 characters (2.4). continue to next page t

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm Playback order of MP3 files MP3 Folder (group) MP3 file (track) masterpage:Left 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 Notes

• Be sure to finalize the disc before using on the unit.
• When naming an MP3 file, be sure to add the file expansion “.mp3” to the file name.
• If you play a high-bit-rate MP3, such as 320 kbps, sound may be intermittent.
• During playback of a VBR (variable bit rate) MP3 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. – 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 session is played. If the disc has no data in any of these formats, “NO Music” is displayed. 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. 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.

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

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. 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. Fuse (10A) 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, which are supplied with Sony Network products. CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm 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.

masterpage:Right Remove the unit. 1 Insert both release keys simultaneously until they click. Hook facing inwards. 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 CD Player section Signal-to-noise ratio: 120 dB Frequency response: 10 – 20,000 Hz Wow and flutter: Below measurable limit Tuner section Orient the release keys as shown. 3 Pull out the release keys to remove the protection collar.

Tuning range: 87.5 – 108.0 MHz Aerial terminal: External aerial 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),

Separation: 35 dB at 1 kHz Frequency response: 30 – 15,000 Hz MW/LW Tuning range: MW: 531 – 1,602 kHz LW: 153 – 279 kHz Aerial terminal: External aerial connector Intermediate frequency: 10.7 MHz/450 kHz Sensitivity: MW: 30 µV, LW: 40 µV Power amplifier section Outputs: Speaker outputs (sure seal connectors) Speaker impedance: 4 – 8 ohms Maximum power output: 52 W × 4 (at 4 ohms) continue to next page t

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm General Outputs: Audio outputs terminal (front/rear) Subwoofer output terminal (mono) Power aerial relay control terminal Power amplifier control terminal Inputs: Telephone ATT control terminal Illumination control terminal BUS control input terminal BUS audio input/AUX IN terminal Remote controller input terminal Aerial input terminal Tone controls: Bass: ±8 dB at 100 Hz Treble: ±8 dB at 10 kHz Loudness: +8 dB at 100 Hz +2 dB at 10 kHz Power requirements: 12 V DC car battery (negative earth) Dimensions: Approx. 178 × 50 × 182 mm (w/h/d) Mounting dimensions: Approx. 182 × 53 × 161 mm (w/h/d) Mass: Approx. 1.2 kg Supplied accessories: Card remote commander: RM-X155 Parts for installation and connections (1 set) Front panel case (1) 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-T70MX, CDX-T69 MD changer (6 discs): MDX-66XLP Source selector: XA-C30 AUX-IN selector: XA-300 US and foreign patents licensed from Dolby Laboratories. 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.

• 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. masterpage:Left 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. General 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 aerial does not extend. The power aerial 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/ATRAC CD). t Play back with a Sony MP3 compatible CD changer, or this unit. No beep sound.
• The beep sound is cancelled (page 12).
• An optional power amplifier is connected and you are not using the built-in amplifier. 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 car’s accessory power connector. The display disappears from/does not appear in the display window.
• The dimmer is set to “Dimmer-on” (page 12).
• The display disappears if you press and hold (OFF). t Press and hold (OFF) again until the display appears.
• The connectors are dirty (page 17). DSO does not function. Depending on the type of car interior or type of music, DSO may not have a desirable effect. 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.

• Defective or dirty disc.
• The CD-Rs/CD-RWs are not for audio use (page 15). MP3 files cannot be played back. The disc is incompatible with the MP3 format and version (page 15). MP3 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.Scroll” is set to off. t Set to “A.Scroll-on” (page 12) 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). “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 aerial control lead (blue) or accessory power supply lead (red) to the power supply lead of a car’s aerial booster (only when your car has built-in FM/MW/LW aerial in the rear/side glass).
• Check the connection of the car aerial.
• The auto aerial will not go up. t Check the connection of the power aerial control lead.
• Check the frequency.
• When the DSO mode is on, the sound is sometimes hampered by noises. t Set the DSO mode to “off” (page 7). Preset tuning is not possible.
• Store the correct frequency in the memory.
• The broadcast signal is too weak. Automatic tuning is not possible.
• The local seek mode is set to “on.” t Set to “Local-off” (page 12).
• The broadcast signal is too weak. t Perform manual tuning. masterpage:Right During FM reception, the “ST” indication flashes.
• Tune in the frequency accurately.
• The broadcast signal is too weak. t Set to “Mono-on” (page 12). An FM programme broadcast in stereo is heard in monaural. The unit is in monaural reception mode. t Set to “Mono-off” (page 12). RDS The SEEK starts after a few seconds of listening. The station is non-TP or has weak signal. t Deactivate TA (page 9). No traffic announcements.
• Activate TA (page 9).
• The station does not broadcast any traffic announcements despite being TP. t Tune in another station. PTY displays “- - - - - - - -.”
• The current station is not an RDS station.
• RDS data has not been received.
• The station does not specify the programme type. 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.
• The disc cannot play because of some problem. t Insert another disc. Failure The connection of speakers/amplifiers is incorrect. t See the installation guide manual of this model to check the connection. Load The changer is loading the disc. t Wait until loading is complete. Local Seek +/– The local seek mode is on during automatic tuning. NO AF There is no alternative frequency for the current station. t Press (SEEK) +/– while the station name is flashing. The unit starts searching for another frequency with the same PI (Programme Identification) data (“PI Seek” appears). NO Data All custom names have been deleted, or none are stored. NO Disc The disc is not inserted in the CD/MD changer. t Insert discs in the changer. continue to next page t

CDX-R6750 2-348-415-21 (1) H:\Data Disk\2348415211\234841521CDXR6750EUR\01GB02CD-EUR.fm masterpage:Left NO Disc Name A disc name is not written in the track. NO Group Name A group name is not written in the track. NO ID3 Tag ID3 tag information is not written in the MP3 file. NO Info Text information is not written in the ATRAC3/ ATRAC3plus file. NO Magazine 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 TP The unit will continue searching for available TP stations. NO Track Name A track name is not written in the track. Not Read The disc information has not been read by the unit. t Loading the disc, then select it on the list. Not Ready 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. Read The unit is reading all track and group information on the disc. t Wait until reading is complete and playback starts automatically. Depending on the disc structure, it may take more than a minute. Reset The CD unit and CD/MD changer cannot be operated because of some problem. t Press the RESET button (page 4). ” or “ During fast-forward or reverse, you have reached the beginning or the end of the disc and you cannot go any further. The character cannot be displayed with the unit. *1 If an error occurs during playback of a CD or MD, the disc number of the CD or MD does not appear in the display. *2 The disc number of the disc causing the error appears in the display.

ATT OFF OPEN/CLOSE SCRL SOUND SOURCE EQ7 MODE REP SHUF

ATT OFF OPEN/CLOSE SCRL DSO SOUND SOURCE EQ7 MODE REP SHUF

ATT OFF OPEN/CLOSE SCRL DSO SOUND SOURCE EQ7 MODE REP SHUF

ATT OFF OPEN/CLOSE SCRL DSO SOUND SOURCE EQ7 MODE REP SHUF