Silvercrest CRB-531 Instructions Manual

Bluetooth car radio
Table of Contents



Preliminary notes

Thank you for selecting our Bluetooth car radio SilverCrest CRB-531. In order for you to utilize this device and all its options, we
recommend that you read the corresponding instructions in this manual before the initial use of the device, even if you're familiar
with handling electronic devices. Please pay particular attention to the chapter "Important safety instructions" on page 5. Store
this manual in a safe location for future reference. If you sell or transfer this device, please be sure to pass along these
instructions as well.


The contents of this manual may not be reproduced, copied or otherwise duplicated in electronic, mechanical, magnetic, optical,
chemical, manual, or any other form without the permission of our company, nor may they be stored in a search engine nor
translated into another language.


The descriptions and features in the manual only serve as general information and do not represent a guarantee. In order to
offer you a product of the highest quality, we reserve the right to make possible improvements or changes without prior
For all product descriptions and user instructions, the German version is the ultimately valid reference in the event of possible
deviations in other languages.

Manufacturer information

JNC Datum Tech GmbH
Benzstraße 33
71083 Herrenberg
More information can also be found at:


Table of Contents

Summary of Contents for Silvercrest CRB-531

  • Page 1: Preliminary Notes

    Preliminary notes Thank you for selecting our Bluetooth car radio SilverCrest CRB-531. In order for you to utilize this device and all its options, we recommend that you read the corresponding instructions in this manual before the initial use of the device, even if you’re familiar with handling electronic devices.
  • Page 2: Table Of Contents

    Table of contents Preliminary notes ......................... 1 Copyright............................1 Declaration ............................ 1 Manufacturer information ......................1 Table of contents.......................... 2 Important safety instructions ...................... 5 Scope of delivery.......................... 6 Installation............................. 8 Installing the device Connecting the antenna Supply voltage Speakers Removal Operating unit ..........................
  • Page 3 11.2 Removal of the operating unit (theft protection) Basic functions........................... 20 12.1 Turning on/off 12.2 Changing the volume 12.3 Muting the speakers Radio (Tuner) Mode........................21 13.1 Selection of the radio station 13.2 Select the wavelength range 13.3 Find and save radio stations 13.4 13.5 Traffic Announcements (“TA“, traffic program ”TP“)
  • Page 4 15.7 Searching for track numbers 15.8 Alphabetical search 15.9 Searching according to compression type 15.10 Skipping forward or backward in increments of ten 15.11 Pause 15.12 Repeat functions (repeat) 15.13 Intro 15.14 Random playback (random) 15.15 Turning the subwoofer on/off AUX IN ............................
  • Page 5: Important Safety Instructions

    Important safety instructions Please read and strictly observe the following instructions! You are not permitted to disassemble, modify or repair the car radio. Never open the case of the car radio; it does not contain any serviceable parts! If the case is open, there is a risk of fatality due to electric shock.
  • Page 6: Scope Of Delivery

    Scope of delivery CRB-531 Bluetooth car radio Case for the operating unit Installation frame Aux-in connection cable Screws and nuts External microphone...
  • Page 7 User manual Remote control Note: The design and technical data are subject to change without any notification. Illustrations are not true to scale.
  • Page 8: Installation

    Installation 8.1 Installing the device Note: Please observe the following safety instructions for the connection of the device: Read the entire installation section before connecting the device. Disconnect the negative pole of the vehicle battery for the duration of the installation. Observe the safety instructions by the vehicle manufacturer during this task.
  • Page 9 Note: We recommend that you have the device installed by a specialized company. Then you will have created the prerequisites for a problem-free functioning of the device. If at any point during the installation you are unsure that you can correctly connect the device by yourself, contact a specialist.
  • Page 10: Connecting The Antenna

    Illustr. 8.3 Illustr. 8.4 Subwoofer output (yellow RCA Caution: jack) This device is distinguished by a high output level. This results in a Line out plug right (red) strong heat generation during the operation. Therefore no cables or other components may be near the device. If their insulation melts, Line out plug left (white) there is the danger of a short circuit or fire.
  • Page 11: Supply Voltage

    8.3 Supply voltage ISO plug A: A4: Attach the connection for +12V operational voltage (diameter at least 2.5 mm² for positive and ground wire) to terminal # 30 (permanent plus) of the vehicle. A5: +12V switching voltage output (max. 0.5 A). When the device is turned on, the switching voltage adjoins contact A5 and serves to retract or extract an automatic antenna and as operational voltage for antenna amplifiers.
  • Page 12: Removal

    Illustr. 8.5 Illustr. 8.6 Illustr. 8.7 8.5 Removal Turn off the device. Remove the operating unit and place it into the case. Clamp off the negative pole of the vehicle battery for the duration of the disassembly. First remove the front frame of the device. Then insert the two disassembly keys into the openings on both sides of the front of the device and slide these until the stop.
  • Page 13: Operating Unit

    Operating unit Front view (level 1) Button to turn the device on/off, button to mute the Radio mode: device Station selection buttons 1-6. Pressing for more than 2 seconds stores the current station under this button. - Volume control dial (turned) - Settings dial for menu level 1 - VOL, BAS, TRE, BAL, Music mode: FAD (pressed)
  • Page 14 AS/PS button SD/MMC card slot Radio mode: Automatic station search and automatic CD eject button station memory Music mode: Start search. Select according to track Status indicator for the device number, alphabetical order, code - lights up continuously when the operating unit is flipped open.
  • Page 15: Display

    10 Display 10.1 General Display (entire view) Display (partial view right) Display (partial view left) Level indicator CD status indicator (lights up when a CD is inserted, turns when the CD is being read or played, flashes in pause mode), Preset button number of the current radio station, REC blinks while recording.
  • Page 16: Radio Mode

    10.2 Radio Mode The display of the device can show the following messages during the radio operation: (Example): RDS program name Alternative frequency has been activated HITRADIO Frequency in the FM range Readiness for traffic alerts has been activated 100.60 A broadcast program with traffic information is Time CT 16:08...
  • Page 17: Mp3/Wma/Ogg-Cd Mode

    10.4 MP3/WMA/OGG-CD Mode During MP3/WMA/OGG-CD operation, the display can show the following additional messages to the ones for audio CD operation: An MP3 file is being played An OGG file is being played The name of the current album is being shown A WMA file is being played ALBUM as scrolling text...
  • Page 18: Usb Mode

    10.6 USB Mode The display can show the following messages during the operation of a USB source as a music source directory: A USB device has been selected as the source The name of the current album is being shown ALBUM or is connected as scrolling text...
  • Page 19: Activation

    11 Activation 11.1 Insertion of the operating unit In order to activate the car radio, you first have to insert the operating unit. First slide the operating unit tilted slightly from the right onto the left guide pin, as described in the illustration on the right.
  • Page 20: Basic Functions

    12 Basic functions 12.1 Turning on/off To turn on the device, briefly press the “PWR/MUTE” button on the operating unit. To turn the device off, please press the “PWR/MUTE” button for more than two seconds. The device will then turn off. Note: If the device is activated after the ignition has been started, it will automatically turn on and off with the ignition during subsequent operation.
  • Page 21: Muting The Speakers

    13 Radio (Tuner) Mode 13.1 Selection of the radio station Turn on the SilverCrest CRB-531 Bluetooth car radio with the “PWR/MUTE” button . If the device was turned off while it was in RADIO mode, the last selected station will be heard. If the device is set to an operation with one of the different data storage media, please press the “MODE”...
  • Page 22: Find And Save Radio Stations

    13.3 Find and save radio stations Search for a station with the station search function To select the stations, select the desired wave band with the “BAND” button (section 13.2). In order to begin searching in the desired direction, briefly press one of the buttons “ “ or “...
  • Page 23: Rds

    Information about the current station In order to show information about the current station, please press the “DIS/REC” button. The desired information will then be shown to you in the following sequence: current time, PTY, frequency of the current station. Show current time In order to show the current time, please press the “DIS/REC”...
  • Page 24: Alternative Frequencies ("Af")

    Note: If the selected station is not a traffic broadcast station, the device automatically starts to scan for the next traffic broadcast station. If “TA” is turned on, the CD, SD-MMC, USB and AUX-IN operation is interrupted for a traffic announcement and will be continued afterwards.
  • Page 25: Regional Programmes ("Reg")

    "REG-ON" or "REG-OFF" appears in the display. 14 CD Mode The SilverCrest CRB-531 Bluetooth car radio supports the formats CD-Audio; CD-R; CD-RW and MP3/WMA/OGG-CD. The bit rate has to be between 64kbps and 320kbps. Note: Conditional on the quality differences of the media as well the characteristics of the recording, it can happen that some individually recorded CDs are unable to be read.
  • Page 26: Inserting / Ejecting A Cd

    14.2 Inserting / ejecting a CD To insert a CD, please press the button on the device. Then the operating unit automatically flips down and uncovers the CD insertion slot. Before you insert a CD, press the ” “button to make sure that no other CD has already been inserted.
  • Page 27: Selecting Or Repeating Tracks

    14.4 Selecting or repeating tracks By briefly pressing the “ ” button , the playback jumps to the next track. If you press the “ “ button , the playback returns to the beginning of the current track. If the “ “ button is pressed twice, the playback jumps back to the previous track.
  • Page 28: Playing Tracks In Random Order (Random)

    14.8 Playing tracks in random order (random) For the random playback of CD tracks, briefly press the station button ”4“ . After pressing the button, the abbreviation “RDM” will appear on the display and the device begins to play back a randomly selected track. If the RDM button is pressed during the playback of a track, this track will be played again from the beginning.
  • Page 29: Usb/Mp3/Wma/Ogg And Sd/Mmc Mode

    15 USB/MP3/WMA/OGG and SD/MMC Mode 15.1 Connecting/removing a USB storage medium To connect a USB storage medium, remove the protective rubber cap on the USB connection . Now plug the storage medium straight from the front into the USB connection of the device.
  • Page 30: Selecting A Usb Storage Medium As Data Source

    USB storage media. Note: ® Please note that the memory of an iPod is differentiated into two different memory levels. The CRB-531 can only play back ® data from the mass storage level. The iTunes level is not supported.
  • Page 31: Selecting Sd/Mmc As A Program Source

    Note: Never use force when inserting an SD/MMC card; this could damage the device as well as the card. Also prevent direct skin contact with the contacts on the card to prevent contact problems . 15.5 Selecting SD/MMC as a program source To play back audio tracks from an SD/MMC memory card, press the "MODE”...
  • Page 32: Alphabetical Search

    Note: If a larger number is selected than there are tracks on the data storage medium, the device will start playing the last track on the data storage medium. 15.8 Alphabetical search With an alphabetical search, you have the option of searching tracks on the storage medium according to name or parts of the name (letter entry) and thereby quickly getting the desired track.
  • Page 33: Skipping Forward Or Backward In Increments Of Ten

    15.10 Skipping forward or backward in increments of ten If you briefly press the station button “5” during playback, the device will skip back by ten tracks. If you want to skip ten tracks ahead, press the station button ”6“ 15.11 Pause To suspend the playback of the current title, please press the PAUSE / station button “1”...
  • Page 34: Turning The Subwoofer On/Off

    Set the volume of the playback device to a medium level and subsequently regulate the volume with your Silvercrest CRB-531. If the playback source of the Silvercrest CRB-531 has not been set to AUX yet, please press the “MODE”...
  • Page 35 Changing the treble setting (TREBLE) After pressing the control dial three times, the treble setting (TREBLE) can be reached. The message “TRE” will appear on the display together with the current level (e.g. “0”). To change the bandwidth of the treble, turn the control dial clockwise or counter-clockwise.
  • Page 36: Menu Level

    The message “FAD” will appear on the display along with the set volume ratio between the front and rear speaker group (e.g. “FAD 2F”). To change the ratio between the speaker groups, turn the control dial clockwise or counter-clockwise. Depending on the direction in which the control dial is turned, an “R”...
  • Page 37 “INVOL”: Initial volume The “INVOL” function enables an adjustment of the playback volume when the device is turned on according to individual preferences. To change the initial volume of the device, press the control dial until the menu level 2 is reached. The "INVOL" function appears.
  • Page 38 Note: During a traffic announcement, it’s possible to adjust the volume to the current requirements at any time through the control dial “EON”: Automatic station switching for traffic announcements The “EON” function is an additional RDS service. If the current program doesn’t offer any traffic announcements, EON automatically switches to the traffic announcements on another program.
  • Page 39 Note: During a telephone conversation, it’s possible to adjust the volume to the current requirements at any time through the control dial “DSP”: Sound settings – 4-band equalizer In the “DSP” menu, you have the option of selecting between four different sound settings. The choices are between the sound settings “CLASSIC“, ”ROCK“, ”POP“...
  • Page 40: Recording And Copying Function

    17.3 Recording and copying function With the Silvercrest CRB-531 you will have the option of recording music tracks, radio features, news, etc. onto removable SD/MMC or USB removable storage devices. The compression types WMA and MP3 are available for this. How you can change the compression mode is described above in section “REC”...
  • Page 41 Note: Please keep in mind the legal regulations applicable at your whereabouts pertaining to the production of copies of copyright- protected materials. If you have any doubts, please consult a specialist near you. Note: The files stored by the device on the data storage medium are named as follows: TRACK**.MP3 or TRACK** .WMA for recordings from an audio CD Tuner**.MP3 or Tuner** .WMA for recordings from the radio LINE**.MP3 or LINE** .WMA for recordings from AUX IN...
  • Page 42 If only an SD/MMC card is inserted, only the option to save onto the SD/MMC card is offered. If only a USB removable storage device is inserted, only the option to save onto the USB removable storage device is offered. If no storage medium is connected or inserted, the message “NO MEDIA”...
  • Page 43: Deleting Tracks

    Bluetooth device. As soon as the search is finished, your cell phone will report a new device with the label “CRB-531”. Choose this device and enter “0000” as the password.
  • Page 44 Connecting radio and cell phone If the option “visible to everyone” is activated on your cell phone, the switched-on Bluetooth car radio CRB-531 automatically connects with your cell phone as soon as it’s in the vicinity. If the option “hidden” is activated on your cell phone, a manual pairing order is required for the cell phone (please check the user manual of your cell phone for exact information about this).
  • Page 45 Overview of Bluetooth functions Condition Entry Function LCD display BTI-LED LED flashes every 5 Device ready No entry seconds Pair with cell LED flashes every Briefly press telephone button phone second Briefly press telephone button Repeat dialling Devices are connected twice the last number Briefly press telephone button...
  • Page 46: Factory Settings ("Reset")

    Condition Entry Function LCD display BTI-LED Incoming call while a conversation is already Number of the person calling, LED lights No entry for 8 seconds. Hang up in progress (3rd party e.g. 01234 567890 continuously calls) LED lights Briefly press telephone button Accept call continuously Briefly press telephone button...
  • Page 47: Remote Control

    18 Remote control 18.1 Description of the buttons The buttons of the remote control fulfil the same functions as the buttons with the same names on the device. Button Function Chapter Turning device on/off 12.1 Traffic announcements 13.5 PTY button to select the program style 13.4 Alternative frequencies 13.6...
  • Page 48 Button Function Chapter Muting 12.3 13.3 Station button 1, pause 14.3, 15.11 13.3 Station button 2, intro 14.7 13.3 Station button 3, repeat track (repeat) 14.6 13.3 Station button 4, random playback 14.8 Station button 5 13.3 MP3 / WMA track - 10 15.10 Station button 6 13.3...
  • Page 49: Changing The Battery

    18.2 Changing the battery To change the battery, please press the lock on the left side of the battery case slightly to the right. Now the battery compartment can be pulled out towards the front. Now replace the old battery with a new one of the same type (CR 2025). Please pay attention to the polarity ("+ pole"...
  • Page 50: Product Information

    19 Product information 19.1 General information Removable flip-down operating unit General information Semi dot matrix LCD display Amber-coloured button illumination PLL tuner with 18FM/12AM station presets Radio component RDS (PTY, TA, AF, PS, PI) Playback of CD/CD-R/CD-RW/MP3/WMA/OGG-CD CD component ESP anti-shock CD/MP3/WMA/OGG Mechanical anti-shock SD/MMC cards (up to max.
  • Page 51: Technical Specifications

    19.2 Technical specifications General Energy supply 12V DC (11V-16V) Maximum power output 40W x 4 channels Appropriate speaker impedance 4 – 8Ω Appropriate speaker output 20W x 4 channels Fuse FM stereo radio Frequency range 87.5-108.0MHz Sensitivity 10dBμ Frequency resonance 30Hz –...
  • Page 52: Disposal

    20 Disposal Please consider that your electronic entertainment device is subject to the European Directive 2002/96/EC for the reduction of electronic waste. You are therefore not permitted to dispose of your device in your household waste. You can receive information regarding the disposal of old device at the municipal administration, the waste disposal administration and the store where you purchased this product.
  • Page 53 Problem Cause Solution The connection cables haven’t been The device does not Please check if all cables have been attached correctly. attached correctly. play any music The “MUTE” or “pause” button is pressed. Press the “MUTE” or “pause” button again. On / off button was pressed too briefly.
  • Page 54 Problem Cause Solution Bad radio reception Reception conditions are bad. Change your location to achieve better reception. The radio reception is choppy or The AF function is activated. Deactivate the AF function (see section 17.2). frequently interrupted. The radio only The REG function is activated.

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