Renkforce RF-ARA-300 User manual

Operating Instructions
RF-ARA-300 Car Radio
Item No. 2373345

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Table of contents
Page
1. Introduction..........................................................................................................................................................3
2. Description of symbols.........................................................................................................................................3
3. Intended use........................................................................................................................................................4
4. Delivery content...................................................................................................................................................4
5. Safety information................................................................................................................................................5
6. Features and functions ........................................................................................................................................6
7. Overview..............................................................................................................................................................7
8. Mechanical installation.........................................................................................................................................8
a) Installation into the radio recess....................................................................................................................8
b) Removal ........................................................................................................................................................9
c) DAB antenna .................................................................................................................................................9
9. Electrical connection..........................................................................................................................................10
a) Connecting the antennas............................................................................................................................. 11
b) Connecting the LINE outputs....................................................................................................................... 11
c) AUX port...................................................................................................................................................... 11
d) Connecting the speakers and the power supply..........................................................................................12
10. Operation...........................................................................................................................................................13
a) General operation........................................................................................................................................13
b) Menu settings ..............................................................................................................................................14
c) Using the DAB radio....................................................................................................................................17
d) Using the FM radio ......................................................................................................................................18
e) USB/memory card operation .......................................................................................................................20
f) Bluetooth®operation....................................................................................................................................22
11. Maintenance and cleaning.................................................................................................................................24
a) Changing the fuse .......................................................................................................................................24
b) Cleaning ......................................................................................................................................................24
12. Troubleshooting .................................................................................................................................................24
13. Declaration of Conformity (DOC).......................................................................................................................26
14. Disposal.............................................................................................................................................................26
15. Technical data....................................................................................................................................................27

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1. Introduction
Dear customer,
Thank you for purchasing this product.
This product complies with statutory, national and European regulations.
To ensure that the product remains in this state and to guarantee safe operation, always follow the instructions in this
manual.
These operating instructions are part of this product. They contain important information on setting up and
using the product. Do not give this product to a third party without the operating instructions. Therefore,
retain these operating instructions for reference!
If there are any technical questions, please contact:
International: www.conrad.com/contact
United Kingdom: www.conrad-electronic.co.uk/contact
2. Description of symbols
The symbol with an exclamation mark in a triangle is used to highlight important information in these
operating instructions. Always read this information carefully.
The arrow symbol indicates special information and tips on how to use the product.

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3. Intended use
With the Renkforce car radio, you can receive radio programmes in vehicles, play audio data from suitable media
and amplify and play audio signals. It also serves as a hands-free set and a playback device for Bluetooth®-capable
mobile phones.
The device must be connected to speakers for playback.
This product is only approved for the connection to 12 V direct current vehicle electrical system with the negative pole
of the battery to the car body. The car radio must 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.
Contact with moisture must be avoided at all times.
For safety and approval purposes, do not rebuild and/or modify this product. Using the product for purposes other than
those described above may damage the product. In addition, improper use can cause hazards such as a short circuit
or re. Read the operating instructions carefully and store them in a safe place. Only make this product available to
third parties together with its operating instructions.
Bluetooth®is a registered trademark of Bluetooth®SIG, Inc. The use of this word mark has been licensed.
Other brand names and trade names are trademarks of the respective owners. All rights reserved.
4. Delivery content
• Car radio
• DAB antenna
• Installation frame
• 2x unlocking keys
• Set of connecting cables
• Operating instructions
Up-to-date operating instructions
Download the latest operating instructions at www.conrad.com/downloads or scan the QR code
shown. Follow the instructions on the website.

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5. Safety information
Read the operating instructions carefully and observe in particular the safety instructions. If
you do not follow the safety information and information on proper handling in these operating
instructions, we will assume no liability for any resulting personal injury or damage to property.
Such cases will invalidate the warranty/guarantee.
• This product is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. It may become a dangerous plaything for
children.
• The product must be protected from strong vibrations, high humidity, moisture, ammable gases,
vapours, and solvents.
• Do not place the product under any mechanical stress.
• If it is no longer possible to operate the product safely, stop using it and prevent unauthorised use. Safe
operation can no longer be guaranteed if the product:
- is visibly damaged,
- is no longer working properly,
- has been stored for extended periods in poor ambient conditions or
- has been subjected to any serious transport-related stress.
• Handle the product carefully. It can be damaged by impact, blows, or by being dropped, even from a
low height.
• Always observe the safety information and operating instructions of any other devices which are
connected to the product.
• In addition, observe the additional safety information in each section of these instructions.
• Consult a technician if you are not sure how to use or connect the product, or if you have concerns
about safety.
• Maintenance, modications and repairs must be carried out by a technician or a specialist repair centre.
Never open the device.
• If you have questions which remain unanswered by these operating instructions, contact our technical
support service or other technical personnel.
• Only use the product in temperate climates. It is not suitable for use in tropical climates.
• If the volume inside your car is too high, you will not hear acoustic warning signals. This constitutes a
danger to yourself and to other road users. Therefore, ensure the volume is at a suitable level.
• Inattentiveness on the road might involve serious accidents. Only use the car audio under suitable trafc
conditions so that you cannot get distracted from what is happening on the road while driving.
• Do not listen to too loud music over an extended time. This may damage your hearing.

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6. Features and functions
• DAB+ receiver for digital radio reception
• FM radio module with RDS function
• USB and SD interface
• Bluetooth®hands-free set
• Music playback via Bluetooth®interface (A2DP)
• High output power (4 x 40 W max.)
• Preamp output for the connection of a power amplier
• Port for external audio sources on the front panel
• Electronic volume, bass, treble, fader and balance control
• Digital signal processor for the adaptation of the sound characteristics to various music styles
• Loudness function
• Exact electronic tuning of the FM stations using PLL tuner
• 24 programmable station memory slots (18x FM, 6x DAB)
• Manual and automatic station search (both directions)
• Automatic storage of stations
• ID3 tag display
• ISO terminal

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7. Overview
1 button
2 F/PS/ button
3 MOD/ button
4 RESET button
5 Display
6 Hands-free microphone
7 SD card reader
8 PWR/MUT button
9 button
10 Knob
11 BND/ID3 button
12 1/ button
13 2/INT button
14 3/RPT button
15 4/RDM button
16 5/ button
17 6/ button
18 AUX port
19 USB port
20 DAB antenna port
21 ISO terminal
22 Fuse
23 LINE outputs
24 FM antenna port
AUX
PWR
MUT
MOD
B ND
ID3
F/PS
5 6
1 2 INT 4 RDM
3 RPT
RESET
1 2 3 4 5 6
7
8
9 10 11 12 13 14 15 16 17 18 19
20
21 22 23 24

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8. Mechanical installation
An installation cut-out for the car radio is provided in most vehicles. The choice of the installation location depends on
safety aspects. Therefore we recommend that you actually install the car radio in this place.
The device requires a DIN installation cut-out with the dimensions 182 x 53 mm; these dimensions are standardised
and most vehicle manufacturers comply with them.
Should there be no installation cut-out, please consult your car dealer about the correct place of installation for your
car radio.
Please select the place of installation carefully so that the device neither impedes the driver nor distracts
them from what is happening on the road.
Use the supplied installation material to guarantee a safe installation.
Any modications to the vehicle that become necessary due to the installation of the car radio or other
components must always be carried out in such a manner that neither trafc safety nor the car stability is
affected. In most cases, cutting out a piece of sheet metal will render the type approval null and void.
Since the device becomes hot during operation, the place of installation must be heat-resistant.
Make sure before drilling the attachment holes that no electric cables, brake lines, fuel tank or similar can
be damaged.
When using tools to install your car's hi- components, follow the manufacturer’s safety instructions.
When installing the car hi- system, consider the risk of accident which can arise from devices being torn
away in the case of an accident. Therefore, you should secure each component in a place where it cannot
be dangerous to passengers.
Before you install the device, check the depth of the installation recess. A minimum depth of 100 mm is
required for installation.
a) Installation into the radio recess
• Unlock the installation frame with the two unlocking keys (gure 1, item 1).
• Remove the installation frame towards the back of the device (gure 1, item 2).
• Insert the installation frame into the respective cut-out in the vehicle (g. 2).
• Bend down some clips in the installation frame until the frame is securely fastened in the recess (g. 3).
• When you have made all the electrical contacts (see “Electric Connection”), insert the device into the installation
frame until it locks in (g. 4).
Keep the two unlocking keys in a safe place. You will need them for a later removal of the device.

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b) Removal
• Unlock the device by inserting the two unlocking keys into the slots on the side of the device frame.
• Carefully pull the car radio out of the installation frame.
• Loosen all plug connectors on the back of the device.
c) DAB antenna
For adhesive installation, a minimum temperature of 15 °C is required. Clean the adhesive areas with a
suitable cleaner (e.g. rubbing alcohol) before installation.
The antenna should not be attached in the area of metallised windscreen parts or close to heating wires.
Do not attach the antenna within the driver's eld of view. It should not interfere with the driver's clear view
of the road.
Select the place of installation with due regard to the length of the connecting cables. They should be long
enough to reach the site of installation of the car radio.
The DAB antenna and connecting cables must never be installed within the release range of an air bag.

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• The antenna should be mounted within the upper corner of the windscreen and A-pillar (at the top right from the
driver's perspective).
• Use the picture below to determine the mounting position.
150 mm
70 mm
• The black electronics box and antenna wire should be attached to the windscreen and the copper-coloured ground
plane to a metal part of the windscreen frame. Make sure the coating of the metal part of the windscreen frame is
intact in doing so.
• Peel off the protective lms and attach the antenna such that the cable outlet faces the covering of the A-pillar.
• Once attached, the antenna should not be subject to any mechanical strain for 24 hours.
• The connecting cables must be guided to the car radio installation recess.
9. Electrical connection
Electrical connection must always be carried out by a specialist.
To avoid short-circuits and resulting damages to the device, the negative pole (ground) of the vehicle
battery must be disconnected during electrical connection. Only connect the negative pole of the battery
when you have completely connected the device and checked the connections.
Use only a voltmeter or a diode test lamp to check the voltage of the vehicle system leads, as regular test
lamps consume excessive voltage and may thus damage the vehicle's electronics.
When laying the cables, make sure they are not squeezed or abraded on sharp edges. Use rubber
grommets for the lead-though points.
The line towards the speakers must be a bilar cable. Insulate the bare wires at the connecting terminals.
Ensure there are no sharp edges that may damage the cables. Ensure that your speakers have a
sufciently high power rating (see “Technical data”). Ensure that all the speakers have the correct polarity,
i.e. the plus and minus marks must match. The connecting cables of the speakers are usually coded: Some
manufacturers mark the (+) line with an additional colour band. Others use a corrugated line for the (+) pole
and a smooth one for the (-) pole. The system was designed for the operation at speaker impedances of at
least 4 Ohm. Never connect speakers with a lower impedance.

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In most vehicles, the cables for the electric connection and the connection of the speakers have been laid
directly to the installation recess.
If this is not the case, please ensure that any cables placed later are secured by the respective on-board
fuses (see vehicle operation manual).
a) Connecting the antennas
FM antenna
• Insert the plug of your car's antenna into the FM antenna port (24) on the back of the device.
• If your vehicle has a different antenna plug, please use a suitable adapter available in specialist shops.
DAB antenna
• Insert the plug of the included DAB antenna into the DAB antenna port (20) on the back of the car radio.
• Manually tighten the union nut to secure the antenna.
• Connect the thin black wire of the DAB antenna to the antenna control output of the ISO plug (system plug A,
terminal 5, blue wire, see also “Connecting the speakers and the power supply”).
b) Connecting the LINE outputs
The car radio has LINE outputs (23) for connecting a power amplier.
The LINE outputs (23) should only be connected via suitable shielded cinch wires. Other cables may cause
interferences.
Keep the connecting cables as short as possible and do not place them near other cables to avoid
interferences in the cables.
To avoid distortions or mismatches that could damage the unit, the cinch connector must only be connected
to devices with suitable cinch terminals.
Connect the inputs of the power amplier to the LINE outputs (23) on the back of the device.
The red socket is a terminal for the right channel and the white socket for the left channel.
c) AUX port
You can connect an external audio device (e.g. a portable MP3 player) to the AUX port (18). The signal of the audio
device is played back via the speakers.
• Connect the AUX port (18) to the audio output of the external device.

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d) Connecting the speakers and the power supply
Vehicles equipped with an ISO plug can be connected directly to the ISO terminal (21), provided the same plug
conguration applies (please check in advance!). If the plug conguration differs, a commercially available vehicle-
specic adapter should be used.
Contact assignment of the ISO terminal (21) can be found in the following gures. Please consult your car dealer
about the respective assignment of your vehicle system plug.
Terminal B (speaker terminal)
1 Rear right speaker (+)
2 Rear right speaker (-)
3 Front right speaker (+)
4 Front right speaker (-)
5 Front left speaker (+)
6 Front left speaker (-)
7 Rear left speaker (+)
8 Rear left speaker (-)
Terminal A (power supply)
1 not assigned
2 not assigned
3 not assigned
4 Continuous current +12 V
5 Antenna control output
6 not assigned
7 Ignition +12 V
8 Ground
• The continuous current +12 V terminal (4) must be connected to a cable that supplies 12 V permanently when the
ignition is off (terminal 30 of the vehicle electrical system). This terminal serves to save the user settings, time, etc.
• The antenna control output (5) supplies a voltage of 12 V when the device is on. This output provides power to the
DAB antenna and a car amplier. The thin black wire of the DAB antenna is connected to this output.
• The ignition +12 V terminal (7) must be connected to a cable that supplies 12 V only when the ignition is on (terminal
15 of the vehicle electrical system).
Do not connect this terminal to continuous current; otherwise, the vehicle battery could get discharged
when the vehicle remains parked for a longer time.
• Connect the ground connection (8) to the vehicle body.
Adhesive techniques that evolve and the painted metal parts impair the electric conductivity. Therefore, not
every metal part is a suitable earthing point.

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10. Operation
Do not put the device into operation until you have familiarised yourself with the functions and these
operating instructions.
Check all the connections again. When you have done so, reconnect the negative pole of the car battery.
a) General operation
PWR/MUT button (8)
• This button turns the device on and off and activates muting.
• When the device is off, briey press this button to turn it on.
• When the device is on, long press this button to turn it off.
• When the device is on, briey press this button to enable muting. The display (5) shows MUTE ON. Briey press
the PWR/MUT button (8) again to disable muting.
Knob (10)
• Turn this knob to adjust the volume.
• Pushing this knob enables you to customise various menu settings.
• Briey press the knob (10):
AF > TA > PTY > VOL > BAS > TRE > BAL > FAD > LOUD > EQ > DX/LOCAL > STEREO/MONO
• Long press the knob (10):
Time display and setting
• More information about settings can be found under the “Menu settings” of this manual.
Display (5)
• The display (5) shows all information about the audio source that is being played (radio module, USB playback,
etc.).
MOD/ button (3)
• This button enables you to select various audio sources and operate the hands-free set (details about Bluetooth®
operation can be found below in this manual).
• Briey press the MOD/ (3) button to toggle between audio sources:
FM > DAB > USB > SD > AUX-IN > BT
When one of the sources is not active, i.e., no medium inserted, this source will be skipped in the selection.

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RESET function
• This button resets all the settings to factory defaults.
• Use a pointed object such as a straightened paper clip to press the RESET button (4) in the following cases:
- when you have completed the installation and connection
- when the device does not respond to any button presses
- when the display shows undened characters
b) Menu settings
To customise the menu settings, you need to access the two levels of the menu by briey or long pressing the
knob (10). Choose the respective settings by turning the knob (10).
Some functions may not be available depending on the audio source (radio module, USB playback, etc.)
that is being used.
Menu items - briey press the knob (10)
AF > TA > PTY > VOL > BAS > TRE > BAL > FAD > LOUD > EQ > DX/LOCAL > STEREO/MONO
• AF ON/OFF
AF ON > automatic station tracking on
AF OFF > automatic station tracking off
The AF function activates automatic station tracking (see “RDS as reception concept”).
AF will be displayed. When the car radio receives no RDS station or the one with a weaker signal, the
display ashes. When a station with a good signal is received, the symbol is displayed continuously.
When you leave a transmission area, the device can only switch to a better station when the AF function is
activated.
• TA ON/OFF
TA ON >> trafc announcement switched on. The display shows “TA”.
TA OFF >> trafc announcement switched off.
The TA function enables the trafc announcement (see “RDS as reception concept”).
The programme is set to mute during the trafc announcement if a different audio source is being played
(e.g. USB playback).
When the volume of the radio broadcast that is being played is very low, the volume of the trafc
announcement increases automatically to a preset value.
With the function enabled, the device only searches for radio stations with the trafc programme (display
shows “TP”). When you leave a transmission area of the trafc information station, the device automatically
searches for a new radio station with the trafc programme (display shows “TA SEEK”).

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• PTY search:
The PTY search function enables to search for stations with a pre-dened programme type (PTY) only (see “RDS
as reception concept”).
PTY OFF >> PTY search switched off
PTY SPEECH >> PTY search for programmes with the speech programme type
PTY MUSIC >> PTY search for programmes with the music programme type
You can select the desired programme type (SPEECH or MUSIC) with the knob (10).
You can select the desired station type (see table) with the respective station button 1-6 (12-17).
You can switch to the second or third station type from the table by pressing the respective station button again.
Once you have selected the desired station type, the PTY search will be initiated automatically in a few seconds.
The display shows PTY SEEK.
The search stops at the next found station with the selected programme type.
If no stations with the selected programme type have been found, a respective message will appear on the
display (5).
Station button SPEECH programme type MUSIC programme type
1 NEWS, AFFAIRS, INFO POP M, ROCK M
2 SPORT, EDUCATE, DRAMA LIGHT M, EASY M
3 CULTURE, SCIENCE, VARIED CLASSICS, OTHER M
4 WEATHER, FINANCE, CHILDREN JAZZ, COUNTRY
5 SOCIAL, RELIGION, PHONE IN NATION M, OLDIES
6 TRAVEL, LEISURE, DOCUMENT FOLK M
• VOL adjusts the volume
This function enables you to adjust the volume without having to activate the menu every time rst to do so
• BAS adjusts sound in the low frequency range
• TRE adjusts sound in the high frequency range
• BAL adjusts the volume ratio between the right and left speakers
• FAD adjusts the volume ratio between the front and rear speakers
• LOUD ON/OFF
LOUD ON >> The loudness function is enabled.
LOUD OFF >> The loudness function is disabled. The sound is not affected.
The human ear is less able to perceive low and high tones at low volumes. An increase in the frequency
range at low volume (loudness correction) counters this effect, and the music sounds more natural.

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• EQ - EQUALIZER
EQ OFF >> equaliser off
POP >> pop music preset
ROCK >> rock music preset
CLASSIC >> classical music preset
JAZZ >> jazz music preset
FLAT >> equaliser on, linear frequency response
• DX/LOCAL
DX >> All stations are received.
LOCAL >> Only stations with a very good signal are received.
The LOCAL setting is helpful in areas with a multitude of stations and good radio reception. During
automatic station search, this option skips stations with a weak signal and interferences.
• STEREO/MONO
STEREO >> The radio receives a stereo signal.
MONO >> The radio receives a mono signal.
In case of poor FM reception conditions, it may be helpful to switch radio reception to mono. Mono radio
mode has fewer interferences.
Menu items - long-press the knob (10)
• Time display
Keep the knob (10) pressed until the time appears on the display.
Briey press the knob (10) to return to the normal display.
• Setting the time
Keep the knob (10) pressed until the time appears on the display.
Keep the knob (10) pressed until the hour display ashes.
Turn the knob (9) to set the hours.
Briey press the knob (10) and turn it to set the minutes.
Press and hold down the knob (10) to save the setting.

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c) Using the DAB radio
Station search
• If you cannot receive a DAB station after selecting DAB mode, press and hold down the BND/ID3 button (11).
• After that, the device searches for stations in the DAB reception area and saves those found in the station list.
• As the search progresses, display (5) shows the number of stations found.
Station selection
• Repeatedly press the buttons (1) and (9) until the desired station appears on the display (5).
• The device will switch to the selected station after a short time and it will be played.
Station buttons
• Congure the station you want to save.
• The selected station can be saved by long pressing station button 1-6 (12-17).
• You can then select a previously saved station directly by briey pressing the respective station.
The DAB range has six station buttons. Thus, you can assign up to 6 station buttons.
Calling up station information
• You can display various information about the station that is being played by briey pressing the
BND/ID3 button (11).
• To switch the display, briey press the BND/ID3 button (11) again.
• In all cases, different information is displayed for each station.

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d) Using the FM radio
RDS as reception concept
The abbreviation “RDS” stands for Radio Data System, i.e. additional inaudible coded information is transmitted via
the RDS station.
Your car radio is a device that can evaluate these coded data that are transmitted by most radio stations.
The following essential additional data is transmitted:
- Programme Identication (PI)
- Trafc Programme (TP)
- Trafc Announcement (TA)
- Programme Service (PS)
- Alternative Frequencies (AF)
- Programme Type (PTY)
Programme Identication (PI)
These data help the receiver to identify a station. It enables the radio to differentiate between areas where the same
programme is transmitted. When the reception signal gets weaker, the car radio only switches to a station with a
stronger signal if it transmits the programme with identical identication.
Trafc Programme (TP)
This signal enables the receiver to detect that a station with a trafc programme is being received.
Trafc Announcement (TA)
With this signal, the receiver can detect a trafc announcement and interrupt the playback of a different audio source.
Programme Service (PS)
This information tells the receiver which station it is receiving. The station name, e.g. BAYERN 3, appears on the
display of the car radio.
Alternative Frequencies (AF)
A list of alternative frequencies that send the same programme is transmitted. If the signal of the received station
becomes too weak, the receiver detects from the AF signal at which frequencies it must search for a station with a
stronger signal.

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Programme 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 transmitted this way. However, not all radio stations offer the PTY service.
Therefore, when you leave the transmission area, the RDS system favourably automatically switches to a similar
station that can be better received. However, it only switches when it nds a better station with the same programme.
The RDS system cannot eliminate short signal attenuations associated with the reception since this would mean
that the car radio permanently switches back and forth. That would disturb the listener even more than short-term
reception problems.
Another advantage of the RDS system is that the station name is displayed. The RDS station name is shown on the
display of the car radio.
Button functions
BND/ID3 button (11)
Band range switching:
• Briey push this button to select the band range of the radio module.
• There are 3 FM ranges:
FM1 > FM2 > FM3
Each of the three band ranges enables to save 6 stations with station buttons 1-6 (12-17).
Buttons (1) and (9)
• These buttons enable to change the reception frequency to adjust stations in radio mode.
• Briey pressing a button starts the automatic station search.
• The search only stops at the next found station with a strong signal.
• Long pressing of the button activates the manual station search.
• MANUAL appears on the display.
• This mode enables stepwise frequency adjustment with each press of the button.
When no buttons are pressed for a longer time, the device switches to the automatic station search. AUTO
will appear briey on the display.
Station buttons 1-6 (12-17)
• If you briey press these buttons, you can select a preset station.
• If you want to save a station you are currently listening to, just press the desired button for about three seconds.
Each of the three FM ranges (FM1-3) has six station buttons. Thus, you can assign up to 18 station buttons.

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F/PS/ button(2)
• Keep this button pushed to activate automatic storage of stations. This function enables automatic assignment of
all stations with a strong signal to station buttons 1-6 (12-17).
• After this procedure, the stored stations are played for a few seconds.
• Briey pressing this button plays all stored stations for a few seconds (same function as automatic storage of
stations).
• To permanently play the selected station, briey press the F/PS button (2) again.
• This button is also used to operate the hands-free set (further details can be found under the “Bluetooth®operation”
of this manual).
e) USB/memory card operation
The device is equipped with a USB port and an SD memory card reader. MP3 les stored on these media cannot
the played.
Do not connect an MP3 player operated with batteries with the USB port. The power supply of the USB port
can charge the batteries and lead to overheating and even explosion of the batteries.
USB data carriers with a memory capacity of up to 64 GB and current consumption of up to 500 mA can be
connected to the USB port. The device also supports SD cards up to 64 GB. All data carriers must be
formatted in FAT 32.
Only USB data carriers can be connected to the USB port. MP3 players with a USB port automatically
switch to the PC mode when plugged into this port. This mode does not support playback of music les.
The audio output of your MP3 player can be connected to the AUX port (18).
We cannot guarantee that all USB and SD data carriers will be recognised due to their manufacturer-
specic functions and that the functionality of those recognised will not be restricted.
If the storage medium cannot be recognised, pull it out and plug it in again.
• Open the cover and connect your USB data carrier to the USB port (19).
• If you want to use an SD memory card, insert it into the SD card reader (7).
• The amplier will automatically switch to the respective input and start playback.
• The medium that was connected last is always selected automatically.
1/ button (12)
• Push this button to interrupt the playback briey.
• When you press the button again, playback resumes at the point where it was interrupted.