4-427-802-51(1) ® Bluetooth Operating Instructions GB Audio System To cancel the demonstration (DEMO) display, see page 6. MEX-BT4150U...
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7 mm aperture.) word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Sony Corporation is under license. Other trademarks and trade names are those of their respective owners. ZAPPIN and Quick-BrowZer are trademarks of Sony Corporation.
Faulty Caution installation or service may be dangerous and IN NO EVENT SHALL SONY BE LIABLE may invalidate any warranty that may apply to FOR ANY INCIDENTAL, INDIRECT OR this device.
Canceling the DEMO Detaching the front panel mode You can detach the front panel of this unit to prevent theft. You can cancel the demonstration display which appears while this unit is turned off. Press and hold . The unit is turned off. Press , rotate the control dial until “DISPLAY”...
Location of controls Main unit This section contains instructions on the App Remote* location of controls and basic operations. To skip a track (press). SOURCE/OFF button* CALL button page 20 Press to turn on the power; select the To enter the call menu (press);...
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(BACK)/MODE button page 10, App Remote* : PAUSE 14, 24 To pause playback. Press again to Press to return to the previous display; resume playback. select the radio band (FM/MW/SW). Press and hold to enter/cancel the DSPL (Display)/SCRL (Scroll) button passenger control (iPod).
ENTER button RM-X231 Remote To apply a setting; receive a call; end a commander call. PTY (Program Type) button VOL (Volume) +* /– button CALL button To enter the call menu. To receive/end a call. MODE button Press to select the radio band (FM/MW/ SW).
Receiving the stored stations Radio Select the band, then press a number button ( to ). Storing and receiving stations Tuning automatically Select the band, then press +/– Caution When tuning in stations while driving, use to search for the station. Best Tuning Memory (BTM) to prevent an Scanning stops when the unit receives a accident.
Rotate the control dial until the desired program type appears, then press it. The unit starts to search for a station broadcasting the selected program type. Playing a disc Type of programs This unit can play CD-DA (also containing NEWS (News), AFFAIRS (Current Affairs), CD TEXT) and CD-R/CD-RW (MP3/ INFO (Information), SPORT (Sports), WMA/AAC files (page 35)).
Notes • Do not use USB devices so large or heavy that USB devices they may fall down due to vibration, or cause a loose connection. • MSC (Mass Storage Class)-type USB • Do not detach the front panel during playback devices (such as a USB flash drive, digital of the USB device, otherwise USB data may be media player, Android phone) compliant...
Caution for iPhone When you connect iPhone via USB, phone call iPod volume is controlled by iPhone, not the unit. Do not inadvertently increase the volume on the unit during a call, as sudden loud sound may result In these Operating Instructions, “iPod” is when the call ends.
Operating an iPod directly App Remote via USB — Passenger control (iPhone) You can operate an iPod directly even when it is connected to the unit. Downloading the “App Remote” During playback, press and hold application from App Store is required for .
Press and hold (APP) on the unit for more than 2 seconds. Searching and Connection to iPhone starts. When connection is established, the playing tracks name of the application on iPhone appears when selecting a source, and Playing tracks in various some playback operations for the modes application become available.
SHUF GENRE* genre in random order. Searching by skip items — Jump mode device in random SHUF DEVICE* order. When many items are in a category, you can SHUF OFF track in normal order search for a desired item quickly. (Normal play).
To cancel Alphabet search, press (BACK) or –. Changing the illumination Notes • In Alphabet search, a symbol or article (a/an/ the) before the selected letter of the item is Changing the color of excluded. display and buttons — •...
Select “DAY” or “NIGHT.” Customizing the display and Customize the preset color from step 3 to 5 button color — Custom Color of “Customizing the display and button color — Custom Color.” You can register a customized color for the display and buttons.
To cancel White Menu, select “OFF” in step Connecting Bluetooth devices Start up effect — Start White Bluetooth operations In the Start White setting, when you press The Bluetooth function allows for handsfree , the display and buttons calling and music streaming via this unit. on the main unit turn white once, then To use the Bluetooth function, the following change to the customized color.
A list of detected devices appears in the Sets this unit to answer an incoming call display of the device to be connected. automatically: “OFF”-“1 (about 3 This unit is displayed as “Sony seconds)”-“2 (about 10 seconds).” Automotive” on the device to be connected.
If passkey* input is required in the display of the device to be connected, Connection between this unit and the Bluetooth input “0000.” device may be automatic, depending on the If the device supports Bluetooth version device. 2.1, passkey input is not required. * Passkey may be called “passcode,”...
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Turn on the cellular phone and activate the Bluetooth signal. With Bluetooth signal on: when the ignition is turned to on, this unit reconnects automatically Connect to this unit using the cellular to the last-connected cellular phone. But phone. automatic connection also depends on the “...
Handsfree calling Calling from the phonebook When connecting to a cellular phone Once the unit is connected to the cellular supporting PBAP (Phone Book Access phone, you can make/receive handsfree Profile), you can access the phonebook, and calls by operating this unit. make a call.
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Calling by phone number Operations during a call input Presetting the volume of the ringtone Press and rotate the control and talker’s voice dial until “DIAL NUMBER” appears, You can preset the volume level of the then press it. ringtone and talker’s voice.
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Notes Preset dial • Check that the unit and cellular phone are You can store up to 6 contacts in the preset connected beforehand. dial. • Store a voice tag on your cellular phone beforehand. • If you activate voice dialing with a cellular Notes phone connected to this unit, this function may •...
Rotate the control dial to adjust the input Music streaming level (“+18dB” – “0dB” – “– 8dB”), then press it. Press (BACK) to return to the previous display. Listening to music from an audio device You can listen to music from an audio Operating an audio device device on this unit if the audio device with this unit...
• Even if the source is changed on this unit, playback of the audio device does not stop. App Remote via Bluetooth wireless technology (Android Initializing Bluetooth Settings phone) Downloading the “App Remote” You can initialize all the Bluetooth related application from Google Play is required for settings (pairing information, preset Android phone.
Two-way Music Control Sound Settings and with Android phone Setup Menu Before connecting the mobile device, turn down the volume of the unit. Enjoying sophisticated Connect this unit and the mobile sound functions — device via the Bluetooth function Advanced Sound Engine (page 19).
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After selecting a source, press , The options for “POSITION” are indicated below. rotate the control dial until “SOUND” appears, then press it. FRONT L (): Front left FRONT R (): Front right Rotate the control dial until “EQ7 FRONT (): Center front SETTING”...
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Adjusting the listening Using rear speakers as position subwoofer — Rear Bass Enhancer You can fine-tune the listening position setting. Rear Bass Enhancer enhances the bass sound by applying a low pass filter setting During reception/playback, press (page 32) to the rear speakers. This function , rotate the control dial until allows the rear speakers to work as a “SOUND”...
Rotate the control dial to select “1,” “2” AUX-A* (AUX Audio) or “3,” then press it. Activates the AUX source display: “ON,” “OFF” (page 34). Press (BACK) to return to the previous display. CT (Clock Time) For details on the settings for the subwoofer Activates the CT function: “ON,”...
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LOUDNESS (Dynamic Loudness) S.WOOFER (Subwoofer) Reinforces bass and treble for clear SW LEVEL (Subwoofer Level) sound at low volume levels: “ON,” Adjusts the subwoofer volume level: “OFF.” “+10 dB” – “0 dB” – “–10 dB.” (“ATT” is displayed at the lowest ALO (Automatic Level Optimizer) setting.) Adjust the playback volume level of all...
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DISPLAY: BT (Bluetooth): For details on setup items for the Bluetooth DEMO (Demonstration) settings, see page 20. Activates the demonstration: “ON,” “OFF.” APP REM: BLK OUT (Black Out) Starts establishing App Remote. Turns off the illumination automatically for any source (e.g., during radio reception/CD playback, etc.) if no operation is performed for 5 seconds: “ON,”...
Using optional Additional equipment Information Auxiliary audio Precautions equipment • Cool off the unit beforehand if your car has been parked in direct sunlight. By connecting an optional portable audio • Do not leave the front panel or audio devices device to the AUX input jack (stereo mini brought in inside the car, or it may cause jack) on the unit and then simply selecting...
• Discs that this unit CANNOT play About iPod – Discs with labels, stickers, or sticky tape or paper attached. Doing so may cause a • You can connect to the following iPod malfunction, or may ruin the disc. models. Update your iPod devices to the latest software before use.
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• Microwaves emitting from a Bluetooth this manual, consult your nearest Sony dealer. device may affect the operation of electronic medical devices. Turn off this unit and other Bluetooth devices in the following locations, as it may cause an accident.
Notes Maintenance • For safety, turn off the ignition before cleaning the connectors, and remove the key from the Replacing the lithium battery of the ignition switch. remote commander • Never touch the connectors directly with your fingers or with any metal device. When the battery becomes weak, the range of the remote commander becomes shorter.
Wireless Communication Optional accessories/equipment: USB connection cable for iPod: RC-100IP Communication System: Bluetooth Standard version 2.1 + EDR Your dealer may not handle some of the above Output: listed accessories. Please ask the dealer for Bluetooth Standard Power Class 2 detailed information.
Radio reception The contents of the memory have been erased. The stations cannot be received. The power supply lead or battery has been The sound is hampered by noises. disconnected or not connected properly. The connection is not correct. ...
Bluetooth function MP3/WMA/AAC files take longer to play back than others. The connecting device cannot detect this The following discs take a longer time to start unit. playback. Before the pairing is made, set this unit to – A disc recorded with a complicated tree pairing standby mode.
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The playback sound stops momentarily when A call partner says that the volume is too low the connection between this unit and the or high. cellular phone is being made. This is not a Adjust the volume accordingly using mic gain malfunction.
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There may be an internal malfunction. – Check the connection. If the error indication CHECKING remains on in the display, consult your The unit is confirming the connection of a nearest Sony dealer. USB device. – Wait until confirming the connection is OVERLOAD finished.
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Bluetooth phone source is selected without a If these solutions do not help improve the cellular phone connected. A cellular phone has situation, consult your nearest Sony dealer. been disconnected during a call. If you take the unit to be repaired because of –...