SD3023 - Car stereo Renkforce - Free user manual and instructions

USER MANUAL SD3023 Renkforce

Legal notice These operating instructions are a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com). All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in electronic data processing systems require the prior written approval by the editor. Reprinting, also in part, is prohibited. These operating instructions represent the technical status at the time of printing. Changes in technology and equipment reserved. © Copyright 2010 by Conrad Electronic SE.

Fon. +49 9604 / 40 88 80 Fax [phone] e-mail: [e-mail] Mon to Thurs 8.00am to 4.30pm Fri 8.00am to 2.00pm36

Operating Instructions English Intended Use With the Renkforce SD-3023 SD Tuner you can receive radio programmes in vehicles and play audio data from suitable media and amplify the audio signals. The radio must be connected to loudspeakers. This product is only approved for the connection to 12 V direct current on-board networks with the negative pole of the battery to the car body. The product may only be installed and operated in vehicles with this kind of on-board voltage. The user must make sure that the way the product is installed protects the product from humidity and wetness. Any use other than that described above can damage the product and may involve additional risks such as short circuits, fire and electric shocks. No part of the product may be modified or rebuilt, and the housing must not be opened. Observe all safety instructions in these operating instructions! Symbols The exclamation mark symbol on the device indicates that the user should read these operating instructions prior to using the product.

The hand symbol indicates special tips and operating information.37 Safety Information In case of damage caused by non-compliance with these safety instructions the warranty / guarantee will become void. We do not assume any responsibility for consequential damage! Nor do we assume any liability for damage to property or personal injury caused by improper use or failure to observe the safety notices. In such cases the guarantee/warranty will be void.

• The unauthorized conversion and/or modification of the product is inadmissible because of safety and approval reasons.

• The device may only be used with the 12 V DC vehicle power supply (with the negative terminal of the battery connected to the body of the vehicle). Never connect the device to a different power supply.

• The device must be set up correctly. Please also follow these operating instructions.

• This product is not a toy and should be kept out of the reach of children! Children cannot judge the dangers involved when handling electrical devices.

• Do not expose the device to high temperatures, dripping or splashing water, strong vibrations or heavy mechanical stress.

• Do not operate the device unattended.

• Do not leave packaging material unattended. It may become a dangerous toy for children.

• Comply with the safety and operating instructions of any other appliances that are connected to the device.

• If you are not sure about the correct connection or if there are any questions that are not covered by the operating instructions, do not hesitate to contact our technical support or another specialist.38

Operating Instructions English Product Description This product is equipped with an AM/FM radio unit, a USB interface and a MMC/SD card reader with the following features:

• High output (4 x 40 W max.)

• Preamp output for the connection of a power amplifier

• Front AUX IN for connecting external audio sources

• Electronic volume, bass, treble, fader and balance control

• Digital signal processor for the adaptation of the sound characteristics to various music styles

• FM-tuner with RDS-function

• Exact electronic tuning of the stations with a PLL-tuner

• 24 programmable station memories (18xFM, 6xAM)

• Manual/automatic station scan in both directions

• Automatic station storage/programme memory search

• Alphanumerical DOT-matrix display

• ID3-day display for MP3-replay

• Time setting by means of the RDS system

• ISO terminal41 Mechanical Installation In most vehicles the producers plan an installation cut-out for the car radio. The choice of the location depends on safety aspects. Therefore we recommend that you actually install the radio in this place. The radio requires a DIN installation cut-out with the dimensions 182x53mm; these dimensions are standardized and usually the vehicle manufacturers keep to them. Should there be no slot, please ask your car dealer about the correct place of installation for your car radio. Please select the place of installation carefully so that the radio neither influences the driver’s activity nor distracts him from the traffic. Only use the supplied installation material to guarantee a safe installation. Any changes in the vehicle that become necessary for the installation of the SD tuner or other components, must be carried out in such a way that neither the traffic security nor the stability of the car are affected. With many cars, the type approval will lapse if you merely saw out a section of the sheet metal. Since the radio creates heat during operation, the place of installation must be heat-resistant. Make sure before drilling the attachment holes that no electric cables, brake lines, the fuel tank or similar are damaged. When using tools to install your car hi-fi components, observe the manufacturer’s safety instructions. When installing the car hi-fi system, take into consideration the risk of accident which can arise from devices being torn away in the case of an accident. Therefore, you should secure every component in a place where it cannot be dangerous to passengers.

Before you install the system, check the depth of the installation recess.42

Operating Instructions English Mechanical Installation Installation in the radio slot

• Unlock the installation frame with the two unlocking keys (fig. 1, no. 1).

• Remove the installation frame towards the back of the system (fig. 1, no. 2).

• Insert the frame into the respective cut-out in the vehicle (fig. 2).

• Bend down some clips in the installation frame until the frame is securely fastened in the recess.

• When you have made all the electrical contacts (see “Electric Connection”) insert the radio into the frame until it locks in (fig. 4).

Keep the two unlocking keys. You will need them for later removal of the radio.

• Protect your radio against vibrations with the bolt at the back of the unit.

• In most vehicles, such a safety fastening is provided for. If this is not the case in your car, fasten the radio with the enclosed punched metal strip. For the fastening, proceed as follows.43 Mechanical Installation Removal

• Insert the two unlocking keys into the lateral slots between the radio and the installation frame, until the radio unlocks.

• Remove the fastening screw at the back of the unit.

• Carefully pull out the radio with the unlocking keys from the installation frame.

• Disconnect the ISO plug, aerial plug and LINE connections.44

Operating Instructions English Electric Connection The electric connection should be done by a specialist. To avoid short-circuits and resulting damage to the radio, the negative pole (earth) of the vehicle battery must be disconnected during connection. Only connect the negative pole of the battery, when you have completely connected the system and checked the connections. You should only use a voltmeter or a diode test lamp for checking the voltage on the on-board cables as normal test lamps consume excessive currents and can thus damage the electronic system of the car. When laying the cables, make sure that they are not squeezed or scoured on sharp edges. Use rubber grommets for the feed-though points. The line towards the loudspeakers must be a bifilar cable. Insulate the bare wires at the connecting terminals. Ensure there are no sharp edges which could damage the cables. Only use loudspeakers which have a sufficiently high loading capacity (see “Technical Data”). Make sure that all loudspeakers have the correct polarity, i.e. the plus and minus signs must match. The connecting cables of the loudspeakers are usually coded: Some loudspeaker manufacturers indicate the (+) wire by means of an additional colour stripe, others use a corrugated cable for the (+) terminal and a smooth one for the (-) terminal. The system was designed for the operation at loudspeaker impedances of at least 4 Ohm. Never connect loudspeakers with a lower impedance.

In most vehicles the cables for the electric connection and the connection of the loudspeakers have been laid directly to the installation slot. If this is not the case, please make sure that any cables placed later are secured by the respective on- board fuses (see vehicle operation manual).45 Electric Connection Connecting the aerial

• Connect the aerial plug of your vehicle with the aerial socket at the back of the radio (socket next to the Cinch terminals).

• If your vehicle has a different aerial plug, please use a suitable adapter, available in specialist shops. Connecting the LINE outputs The SD tuner has four LINE outputs for connecting a power amplifier. For the connection of the cinch sockets only use the shielded cinch wires. The use of other cables might cause interferences. Keep the distance of the cables as short as possible. Do not place the cables near other cables to avoid interferences in the cables. To avoid distortions or mismatchings that could damage the unit, the cinch connector must only be connected to devices with the suitable cinch terminals. For this, observe also the connection data in the section “Technical Data”.

• Connect the Cinch sockets on the back of the radio to the power amplifier’s input.

The red socket is a terminal for the right channel The white socket is a terminal for the left channel AUX IN connection You can connect an external audio device (e.g. portable MP3 player) to the port AUX IN (22) whose signal is played back via the vehicle loudspeakers.

• Connect the port AUX IN (22) with the audio output of the external device.46

Operating Instructions English Electric Connection Connection of the loudspeakers and the power supply Vehicles equipped with such an ISO system plug can be connected directly to the ISO terminal if the plug assignment is the same (please check beforehand!). If the plug assignment is not the same then it is connected via an adapter specific to the vehicle, which is available in shops. Please refer to the following illustrations for the SD tuner’s ISO connection socket contact assignment. Please ask you car dealer for the respective assignment of your vehicle system plug. System connector B (loudspeaker connection) (1) Loudspeaker rear right (+) (2) Loudspeaker rear right (-) (3) Loudspeaker front right (+) (4) Loudspeaker front right (-) (5) Loudspeaker front left (+) (6) Loudspeaker front left (-) (7) Loudspeaker rear left (+) (8) Loudspeaker rear left (-) System plug A (power supply) (1) (not assigned) (2) (not assigned) (3) (not assigned) (4) Continuous current +12V (5) Aerial control output (6) (not assigned) (7) Ignition +12V (8) Ground47 Electric Connection

• The constant current terminal +12V (4) must be connected to a cable that also supplies 12V permanently when the ignition is off (terminal 30 of the on-board network). This terminal serves to save the user settings, time, etc.

• The aerial control output (5) supplies a voltage of +12V when the device is switched on. This cable can be used for the power supply of an electrical aerial, and for the voltage for switching on a vehicle amplifier.

• The terminal of the ignition +12V (7) must be connected to a cable that is only live with +12V when the ignition is on (terminal 15 of the on-board networks).

Do not connect this terminal to continuous current, otherwise the on-board battery could be discharged when the vehicle is parked for a longer period of time.

• Connect the ground connection (8) with the vehicle body.

Adhesive techniques which become ever more common and painted metal parts impair the electric conductivity. Therefore not every metal part is a suitable earthing point.48

Operating Instructions English Operation Do not turn on the device before you have read and understood these operating instructions. Check all the connections again. When you have done so, reconnect the negative pole of the car battery. General operation

• Button (1) This button switches the radio on and off.

• MODE button (10) With this you can select various audio sources. Every time the button is pressed, the radio switches to the next source:

When one of the sources is not active, i.e. no medium inserted, this source will be skipped in the selection.

• VOLUME control / SELECT button (3) In standard operation, the VOLUME control is for setting the volume. Press the SELECT button once or several times, to change the parameters BAS (bass control), TRB (treble control), BAL (balance control) and FAD (fader control) by turning the VOLUME control.

• LC Display (6) The display (6) shows all the information, depending on the audio source that is being played (radio, SD player etc.).49 Operation

• DISP button (9) With this button various data can be displayed on the LC display (6). Press the button once more to move to the next display. When the button is not activated any more, the display returns to the original information after a little while. When an RDS station is being received: Radio operation: Station name > Time > Transmission frequency > Programme type SD/USB operation: Track display > Time > ID3 information > Station name > Transmission frequency > Programme type When no RDS station is being received: Radio operation: Transmission frequency > Time > PTY NONE SD/USB operation: Track display > Time > ID3 information > Transmission frequency > PTY NONE

• BND/LOU/ENT button (4) This button switches the loudness function on and off. To switch the loudness function on and off press and hold down the button: LOUD ON: The loudness function is active. LOUD OFF: The loudness function is inactive. The sound is not influenced.

At low volumes the human ear does not perceive very low and very high sounds well. An increase of the frequency range for low volume (loudness correction) counteracts this effect and the music replay sounds more natural.50

Operating Instructions English Operation

• EQ/MUT button (5) To call up the equalizer presettings press the button briefly: FLAT Equalizer switched on, linear frequency response CLASSICS Presetting for classical music POP M Presetting for pop music ROCK M Presetting for rock music DSP OFF Equalizer switched off Press and hold this key to activate muting. Use this function, when you want to interrupt the current playback for a short time, for example if you want to ask someone for the way. To deactivate the mute again press the EQ/MUT (5) button again or turn the VOLUME control (3).

• RESET button (11) This button resets all the settings to the original settings that were made in the factory. Press this button in the following cases: - when you have completed the installation and connection - when the radio does not respond to the operation of buttons any more - when the display shows undefined characters.51 Operation Menu settings

• VOLUME control / SELECT button (3) To select the menu settings, please press the SELECT button (2) a little bit longer (>2 seconds) and then press this button once more, but only very shortly, until the desired function appears on the display: Choose the options for the respective settings by turning the VOLUME control (3).

BEEP ON: Every activation of a button is confirmed by an audio signal. BEEP OFF: The sound confirmation function is deactivated.

AREA EUR: Radio frequency band setting for Europe FM 87.5-108MHz / 50kHz steps MW 522-1,620kHz / 9kHz steps AREA USA: Radio frequency band setting for USA FM 87.5-107.9MHz / 200kHz steps MW 530-1,710kHz / 10kHz steps

TA SEEK: When the radio has lost the traffic information, it will seek a new station with Traffic Announcement coding. TA ALARM: When the radio cannot receive the TA code any more, there will be an alarm signal.52

Operating Instructions English Operation

The sender’s response if you are in a transmission area where 2 different stations with different programme identification (PI) transmit the same AF (alternative frequency): PI SOUND: The radio switches to the new station for a few seconds and then back again: PI MUTE: The new station is muted.

RETUNE L: When the radio does not receive traffic announcements any more, the auto-scan starts 90 seconds later. RETUNE S: When the radio does not receive traffic announcements any more, the auto-scan starts 30 seconds later.

The radio’s response with station search: MASK DPI: Alternative frequencies with different programme information (PI) are not taken into account. MASK ALL: Alternative frequencies with different programme information (PI) and alternative frequencies with high signal strength but no RDS information are not taken into account.53 Operation Radio mode Receiving concept RDS The abbreviation RDS stands for Radio Data System, i.e. inaudible, additional information codes are transmitted by the FM RDS station. With the SD-3023 you have an SD tuner that is able to evaluate these coded data that are transmitted by most of the radio stations. The following important data is transmitted: - Program Identification (PI) - Traffic Program (TP) - Traffic Announcement (TA) - Program Service (PS) - Alternative Frequencies (AF) - Program Type (PTY) - EON Information (enhanced other networks) - Clock time (CT) Program Identification (PI) These data help the receiver to identify a station. It enables the radio to differentiate between areas where the same programme is transmitted. The car radio only switches to a stronger station when the reception gets weaker, if the stronger station transmits the same programme identification Traffic Programme (TP) This signal enables the receiver to detect that a station with a traffic programme is being received. Traffic Announcement (TA) With this signal the receiver can detect a traffic announcement and interrupt the current replay of a different audio source.54

Operating Instructions English Operation Program Service (PS) This information tells the receiver which station it is receiving. It is directly replayed in the display of the car radio, e.g. BAYERN 3. Alternative Frequencies (AF) A list of alternative frequencies that send the same programme is transmitted. If the transmitter station currently received becomes too weak, the receiver detects from the AF signal on which frequencies it must search for a better transmitter. Program Type (PTY) This code gives the receiver information about the type of the transmitted programme (e.g. sports, classic, news etc.). The listener can select his favourite programme purposefully. A national disaster alarm can also be prepared this way. However, not all the radio stations offer the PTY service. EON Information (EON) Many chains of radio stations with various programmes only have one programme with traffic information. If EON information is transmitted, a radio equipped with an EON function switches to the Traffic Announcement station whenever such announcements are made, even if a different programme of this chain is being played. If you listen to Bayern 4 for example (no traffic announcement) and the TA button is activated, the radio will switch to Bayern 3 (with traffic announcements)) for the time of a traffic announcement. Clock time (CT) Many stations transmit the current time in the RDS data. If a radio receives this signal, it sets the in-built clock automatically. Therefore, when you leave the transmission area, the RDS system has the advantage that it switches to a similar transmitter station that can be better received. However, it only changes when it finds a better transmitter station with the same programme. Short signal attenuations due to the reception cannot be eliminated by the RDS system either, since this would mean that the car radios permanently switches back and forth. The listener would feel much more disturbed by this than by short-term reception problems. Another advantage of the RDS system is that the station name is displayed. The station name of an RDS station is displayed in the car radio.55 Operation Function of the keys

• BND/LOU/ENT button (4) With this button you can select the band range of the radio unit. There are 3 FM ranges and 2 AM ranges available: F1 > F2 > F3 > MW

On each of the four band ranges, 6 stations can be stored on the station buttons 1-6 (16).

• Buttons and (2) With these buttons the receiving frequency can be changed to adjust stations in radio operation. Briefly pressing a button starts the automatic station search. (SEARCH is displayed). The auto-scan only stops at the next station that can be received well. By pressing a button longer, you activate manual station scan. The display shows MANUAL. In this mode, the frequency is changed until you release the corresponding button again. Brief presses of this button changes the frequency step by step.

If buttons are not pressed for a longer period of time, the device switches back to automatic station search. The display shows AUTO.

• Station buttons 1-6 (16) If you shortly press these buttons, you can select a station you have pre-set. If you want to store a station you are listening to, simply press the desired button for more than 1 second.

Each of the three FM band ranges (F1-3) and also the AM reception range (MW) has six station buttons. Therefore you can assign 24 station buttons.56

Operating Instructions English Operation

• AS/PS button (8) If you press this button shortly, the stations stored on the station buttons 1-6 (16) are played for 5 seconds each. To stop the auto-scan, press the button again. When you keep the button pressed, all the stations that can be received well are stored on the station buttons 1-6 (16). After this procedure, the stored stations are played for a few seconds each, as described above.

• TA button (21) Press the TA button (21) once shortly > TA is activated Press the button again > TA is deactivated When you receive a traffic programme station, the display shows TP (traffic programme). When you keep the TA button pressed, the abbreviation TA is displayed. If a different audio source is being played (an SD for instance), the programme is set to mute during the traffic announcement. When you listen to a radio programme at a very low volume, the volume is automatically increased to an easily audible level. When the traffic announcement is over, the volume you were hearing before is restored. EON sensitivity setting: It is possible with this function to make the switching of traffic announcements of other programmes from the same transmission chain dependent on their reception strength. Press the TA button (21) for about 2 seconds until the display shows EON TA LO or EON TA DX. When you press the TA button once more, you switch between these two modes. The normal display reappears automatically after a few seconds. EON TA LO: The radio only switches to EON traffic announcements if the EON transmitter’s signal strength is good and no interference is expected. EON TA DX: The radio always switches to EON traffic announcements, the signal strength is not taken into account.57 Operation

• AF button (7) Press the AF button (7) once shortly > AF is switched on Press the button again > AF is switched off The AF button (7) activates the automatic transmitter station tracking. “AF” will be displayed. If the reception of an RDS transmitter station gets weaker or the radio does not receive an RDS station at all, the display flashes. When a station can be received well, the symbol is displayed continuously. When you leave a transmission area, the radio can only switch to a better sender when the AF function is activated. Regional identification: Press the AF button (7) for about 2 seconds until the display shows REG ON or REG OFF. When you press the AF button once more, you switch between these two modes. The normal display reappears automatically after a few seconds. REG ON: As reception becomes weaker the radio switches to another frequency with exactly the same programme. REG OFF: As reception becomes weaker the radio switches to another station with the same regional identification.

• PTY button (20) This button activates the PTY function. You can recognize it by the PTY display. When pressing the PTY button, the display shows the selected programme type. Set the programme type you want using the VOLUME control (3) and press one of the buttons and (2), to start the auto-scan. Now the automatic search for a station with this program type starts. The following program types are available: NEWS, AFFAIRS, INFO, SPORT, EDUCATE, DRAMA, CULTURE, SCIENCE, VARIED, POP M, ROCK M, EASY M, LIGHT M, CLASSICS, OTHER M, WEATHER, FINANCE, CHILDREN, SOCIAL, RELIGION, PHONE IN, TRAVEL, LEISURE, JAZZ M, COUNTRY, NATION M, OLDIES, FOLK M, DOCUMENT, TEST,ALARM58

Operating Instructions English Operation USB/memory card operation The radio is equipped with a USB interface and a memory card reader for SD/MMC cards, MP3 files stored on these media can be played. Do not connect an MP3 player to the USB interface if it is battery operated. The USB interface power supply can charge the installed batteries and thus lead to overheating or even explosion of the batteries.

USB media and USB hard disks up to max. 40 GB and with power input of max. 1A can be connected to the USB interface. Only USB storage media can be operated at the USB socket. MP3 players with a USB port usually switch into PC mode when this port is connected. In this mode, music files cannot be played. However you can connection an MP3 player’s audio output to the AUX IN port (22) at any time. SD/MMC cards and SDHC cards up to max. 8 BG are supported. The media must be formatted in FAT 32. Due to the great variety of systems with USB and SD/MMC card interfaces and their different functions that are sometimes producer-specific, we cannot guarantee that all media will be recognized and that all the operational functions are available with this radio. If the storage media is not recognised, then please remove it and plug it in again.

• Connect your USB storage medium with the USB port (23).

• If you use a memory card, insert it into the memory card reader (12).

• The player switches to the respective input automatically and starts replay.

• The last inserted medium is selected automatically.59 Operation

• Buttons and (2) With these buttons you can select individual tracks or search for a certain section within one track.

The arrows on the buttons indicate the search direction (up or down). Only press the buttons shortly to jump to the next or previous track. Press the buttons longer to search a certain section within one track. The CD is now in fast replay.

(19) buttons These buttons are used to select the folder on the storage medium. DIR V (18) selects the previous folder. DIR (19) selects the next folder.

These buttons do not work if there is no folder structure on the storage medium.

• Button / (13) Press this button to interrupt replay shortly. When you confirm the button again, replay will begin at the point where it was interrupted.

• SCN button (14) Press this button to play each track for approx. 10 seconds. To de-activate this function, press SCN (14) again. Replay will be normal from this point onward.

• RPT button (15) Press this key to activate the title repeat function. The current track is repeated continuously. To de-activate this function, press RPT (13) again.60

Operating Instructions English Operation

• SHF button (17) Press this key for random replay. The tracks will be played in a random order. To de-activate this function, press SHF (17) again. Replay will be normal from this point onward.

• Search function with USB/memory card operation Searching for track numbers - Press the AS/PS (8) button once to activate track search. - Select the desired track number using the VOLUME (3) control. - Press the BND/LOU/ENT button (4). - The selected track is played automatically. Searching for track names - Press the AS/PS (8) button twice to activate track name search. - The first digit of the track display blinks. - Select the desired letters using the VOLUME (3) control. - Press the SEL button (3), the second character flashes. - Select the other letters in the same way. - Press the BND/LOU/ENT button (4). - All tracks and folders which begin with the chosen letter(s) are displayed. - Select the desired track or folder using the VOLUME (3) control. - If the chosen name is a folder name, (, ,) is displayed. - In this case select the track names in this folder using the buttons and (2). - Press the BND/LOU/ENT button (4). - The selected track is played automatically.61 Operation Search using the folder structure - Press the AS/PS (8) button three times to activate search using the folder structure. - The first directory structure is displayed. - Select the desired directory using the VOLUME (3) control. - Press the BND/LOU/ENT button (4). The file is selected and the name of the first track or the next sub-file is displayed. - Select the desired track or the next sub-directory with the VOLUME control (3). - Continue in the same way until the desired track is displayed. - Press the BND/LOU/ENT button (4). - The selected track is played automatically. Search within the currently chosen directory - Press the AS/PS (8) button four times to activate search within the current directory. - The current directory name is displayed. - To choose the directory you want select the desired track or (, ,) with the VOLUME control (3). - Continue as described in “Search using the folder structure”. Handling

• If the volume inside your car is too high, you will not hear acoustic warning signals. This constitutes a danger to yourself and other road users. Therefore, make sure the volume is at a suitable level.

• Inattentiveness on the road might involve serious accidents. Operation of the hi-fi system may therefore only take place if the traffic situation permits and you are not unduly distracted by operating the system.

• Do not listen to excessively loud music over an extended period of time. This may damage your hearing.62

Operating Instructions English Maintenance Regularly check the technical safety of the SD tuner, e.g. for damage of the cables or the housing. If it can be assumed that safe operation is no longer possible, the device must be turned off and precautions are to be taken to ensure that it is not used unintentionally. Disconnect the car power system! It must be assumed that safe operation is no longer possible if:

• the device shows visible damage

• if the appliance does not function for some reason, or

• following considerable stress during transportation. Before cleaning the SD tuner or performing maintenance, the following safety instruction must be observed: Live components may be exposed if covers are opened or components are removed. The device must be disconnected from all power sources before any servicing or repair work is carried out. Capacitors inside the device may still carry voltage even though they have been disconnected from all power sources. Only qualified experts familiar with the hazards involved and the relevant regulations may perform repairs. Replacing the Fuse If it becomes necessary to replace a fuse, make sure that only fuses of the prescribed type and nominal current are used (see “Technical Data”). Never repair fuses or bridge the fuse holder.

• When the power supply has been disconnected (disconnect ISO plug!) carefully remove the fuse from the fuse holder next to the ISO plug.

• Replace it by a fuse of the same type.

• Only then can you re-connect the SD tuner to the electric on-board system.

• Should the fuse trigger again, have the CD tuner repaired in a specialised workshop.63 Maintenance Cleaning The device should only be cleaned with a soft, dry cloth or brush from the outside. Never use any aggressive cleaning agents or chemical solutions that may damage the surface of the housing. Troubleshooting With the Renkforce SD-3023 SD tuner, you have purchased a product that is equipped with state-of-the-art technology and safe to operate. Nevertheless, problems or errors may occur. Therefore, we would like to describe how to eliminate possible faults here: Please observe the safety notes! No replay, no display, and the lights are out:

• Faulty car fuse. Look up the respective fuse in the operation manual of your car. Check the fuse.

• The fuse of the SD tuner is defective. Remove the SD tuner and check the fuse.

• The positive line/ground line is loose. Remove the radio and check the cable connections. Replay only through one speaker:

• The balance control is wrongly adjusted. Adjust the balance control as described.

• The speaker connection has come loose. Remove the radio and/or speakers and check the connections. Replay only through the front or rear speakers:

• The fader control is wrongly adjusted. Adjust the fader control.

• The speaker connection has come loose. Remove the radio and/or speakers and check the connections.64

Operating Instructions English

Troubleshooting In radio operation hardly any stations can be received:

• The aerial is not pulled out completely. Pull out the aerial to its full length.

• The aerial connection has come loose. Remove the radio and check the connection.

• The aerial is defective. Check the connection, grounding and the aerial itself. Problems during radio and USB/memory card operation:

• Interferences reach the radio via the positive cable. Install an additional interference suppression coil into the positive line.

• If necessary also equip the vehicle with spark-plug suppressor sockets, distributor arms etc. to suppress interferences.

• Poor earth connection. Check the earth connection and if needs be use another earthing point. When you press a station button, you only hear hissing:

• No station has been programmed. Program the stations as described above. The device no longer responds to button commands or displays strange symbols in the display:

• 24 stations programmables (18xFM, 6xAM),