Xomax XM-RSU256BT User manual

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XOMAX
XM-RSU236BT
XOMAX
User Manual
XM-RSU256BT
ENGLISH

Thank you for purchasing one of our XOMAX products! We appreciate your confi-
dence. Enjoy your brand new multimedia unit!
Please read the following manual carefully before you install and use the unit.
Please save this manual in case you will need to clarify further possible ques-
tions regarding installation and usage of our product.
We are constantly trying to keep our online-library of user's manuals for our
products up-to-date. In case you miss some information or if something should
be unclear, please visit our homepage www.xomax.de for a current version of
user's manual or contact our customer service.
i
XM-RSU256BT
Version 1.0
Last update 12.05.2017
Manual's version
We appreciate our environment, so to keep it safe and clean, we
do not print our manuals on paper but provide our products with
manuals in digital version created in *.pdf format.
You can find and download them anytime on our homepage
www.xomax.de, view them on your mobile devices and print
them for yourself if needed.
Please note: Any alternations and changes of technical data or/and design
due to technical update of some models need no advertisement.
XOMAX

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【GENERAL OPERATION】
/Mute
Press /Mute button in short time to turn the player on
A. When machine is on status
You can immediately mute play back without turning off the player of changing the volume by
pressing the /Mute button. Pressing the button again returns to the original volume.
● When the player is muted the display shows "MUTE".
● When the player is muted the dual VU meter switches off.
Button
Press button in short time to turn the player on
A. When machine is on status
● Press shortly to switch modes among AUX, FM and MP3 playing modes.
AUX IN Radio USB/SD,MMC
● When you turn on the player it reverts to the last used signal source
● If the USB and SD sockets are empty, only the FM radio and AUX modes are available.
● If an external unit is connected to both the USB port and the SD socket, then the USB port
takes precedence.
● The player always starts playback from the last connected external unit. E.g., if you have a
memory stick connected to the USB port and plug in an SD card, the card becomes active
and playback starts automatically.
B. In BT Mode, press shortly to hang up the call
SETTING THE VOLUME
Turn the SEL knob to adjust the volume to the desired level.
● If the player is currently not in the volume control mode, then keep pressing the turning
knob until you reach the VOL mode.
● If you make no change for 3 seconds, the player automatically reverts to the previous
function.
AUDIO SETTINGS, ADJUSTING THE TONE
Press the SEL button repeatedly to select the setting you wish to adjust:
BS TE B F
(Bass) (Treble) (Balance) (Fader)
VOL EQ (class/pop/rock) LOUD ON/OFF

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You can adjust the setting by turning the knob.
● If you make no change for 3 seconds, the player automatically reverts to the previous
function.
● By default the knob adjusts the volume
● 00: no adjustment
● -01...-07: lower setting
● +01...+07: higher setting
● L: left channel; R: right channel; FA R: rear pair of speakers; FA F: front pair of speakers
● If you choose an equalizer setting different from Rock, Pop, Classical...., then the
previously stored bass and treble settings are changed. When you return to OFF(EQ ) the
tone you adjusted manually earlier is restored.
● When you are using the player at higher volumes, do not set either the bass or treble tone
to a very high level, as this can cause distortion!
EQ/LOUD Control
Press VOL knob repeatedly till the display show the “EQ”, rotate the VOL knob to adjust
Classic/Pop/Rock
Press VOL knob repeatedly till the display show LOUD, rotate the VOL knob to adjust loud on
or loud off.
Remark：At lower volumes our ears perceive low and high frequencies less intensively. If you
activate the LOUD function, the automatic equalizer corrects this effect. It is recommended to
turn off this function at higher volumes.
● For better sound quality it is recommended to choose OFF (EQ ) and set the tone controls
to 00 before using this function
● The higher the volume, the less you can perceive the effect of automatic tone correction.
BASS Adjust bass tone(-7....00...+7)
TREBLE Adjust treble tone(-7....00...+7)
BALANCE Adjust left/right balance(L10...01/L=R/R01...10)
FADER Adjust front reader balance(R10...01/F=R/F01...10)
LOUD OFF/ON Adjust LOUD OFF /LOUD ON
EQ Adjust Classic, Pop, Rock
VOLUME Volume control(00-39)

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● When the function is active the display shows LOUD.
AMS/：
BAND/AMS Button (Automatic Memory for Stations and Automatic Scan for the Memory of
Preset Stations)
Press BAND/AMS button for over 1 second, the player will search signals in the present
wave band based on the present wave band. If it searches from band FM, it will automatically
search in band after finishing searching in band FM1. After finishing scan, the player will
memorize the broadcasting station and then automatically scan the memory of preset
stations.
In BT Mode, press shortly to answer the incoming call
PREPARE FOR BLUETOOTH OPERATION
●When use Bluetooth, please make sure the mobile phone supports Bluetooth function.
For the different kind of mobile phone, Bluetooth emissive power has some difference. To get
the best conversation quality, it is commended that the distance between the mobile phone
and the unit is within 3m. And please do not put any metal object or any Obstacle between
the path of the mobile phone and the unit.
BLUETOOTH PAIRING
On the mobile phone, select the Bluetooth set up. (Please refer the instruction manual of you
mobile phone on how to operate Bluetooth.
●When the unit is turned on, the bluetooth can be activated in any status. "CAR BT" should
appear in the list on your mobile phone, please select "CAR BT" to connect the bluetooth.
●When successfully paired, the “BT ON” showing on the LCD display.

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ANSWER A CALL
When the phone which has already been connected to the device is called, the player device
will automatically shift to the on-a-call status whenever the player is in any mode,and the
phone number will appear on LCD. Then, you can press BAND/ button ( either on the
unit player or phone is available to answer the call). To ensure the clear voice, you should
speak in the best way to keep a certain distance from the microphone.
MAKE A CALL
After the mobile phone and the player device paired, you can make a voice call on the unit
player by tapping a phone number on the mobile.
END A CALL
If you want to end the call,you can do it by the hang-up button MOD/ either on your
mobile or the player device.
BLUETOOTH AUDIO( A2DP FUNCTION)
After the mobile phone and the player device paired, press MODE repeatedly until the
"BT" appears on LCD display. Music in the mobile phone can be played from the unit player.
During the music playback, press"PAUSE","NEXT", "BACK" button either on the mobile
phone or on the unit player to achieve the corresponding functions.
【FM RADIO OPERATION】
When you turn on the player, the FM receiver will come on if it was the last selected signal
source, or if you have removed the last used USB stick or SD card. If needed, press the
MODE button to select the FM Radio function.
MANUAL TUNING, STORING FREQUENCIES

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Press the and button briefly to manually tune in to the desired station, or press and
hold the and buttons to scan automatically for the stronger stations. The scan stops
when the player reaches the next available station. If you press and hold one of the slot
numbers 1 through 6 for 2 seconds, the current station is stored in that location. The left part
of the display then shows CH1...6.
● The player can store up to 18FM radio stations. Press the AMS/BAND button repeatedly to
select either the FM1, FM2, FM3 band. All of these options allow you to store 6 stations. If
you have chosen, for instance, Slot 4 of the FM2 band, then you later need to first select
the FM2 band by pressing the AMS /BAND button, then press the button for Slot 4, to
recall the station.
● If a memory slot is already in use, then its current value is cleared and the player stores the
new frequency there.
AUTOMATIC TUNING AND STORAGE
To start a scan and store the currently available FM stations, press and hold the AMS/BAND
button for 2 seconds. You can follow the scanning and memorizing process on the display.
The radio searches from the current frequency and checks the signal strength until two cycle
search is finished, then the player automatically plays the first 5 seconds of every available
radio stations.
If there are enough channels available, the player will move on to FM2 and FM3 after filling in
the six slots of first band FM1.
● Keep in mind that the receiver may skip weaker stations, and you cannot influence the
order in which the stations are stored.
● If you wish to store a station in a particular slot, you need to manually tune in to its
frequency and store it.
● If you are using the receiver at a distant place from the location where you originally stored
a station (e.g., when you are traveling), you may need to find the same station again at a
different frequency. The same stations often air at different frequencies in different
geographical locations!
SELECTING A STORED FREQUENCY
Press and hold the button corresponding to the station's slot (1...6).Make sure to select the
right band (FM1/FM2/FM3/) first by pressing AMS/BAND.
● If you press and hold the preset Number's button for more than 2 seconds, the player will
not go to the stored frequency, but store the current frequency into the slot instead. This
overwrites the previously stored frequency.
【MUSIC PLAYBACK(FROM USB/SD/SDHC/MMC STORAGE DEVICES)】
If you wish to listen to MP3 tracks from a USB/SD/SDHC/MMC storage device and the FM
receiver is currently active, you simply need to connect the USB stick or insert the memory
card. The player detects this and starts playback automatically. The display then shows the
song name, the track's number and the elapsed time.
If both a USB stick and an SD/SDHC/MMC card is connected at the same time, the player will

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play the tracks from the one you inserted last.
● This unit can play MP3 directly from USB/SD/MMC storage device.
● If the player emits no sound or does not recognize the USB/SD/SDHC/MMC memory,
remove the storage device and connect it again. If this does not work either, press the
shortly button to select the signal source.
● Only disconnect the external unit after you have switched to a different signal source by
pressing shortly, or if you have turned off the player. Otherwise the data on the
device maybe damaged.
● Never disconnect an external unit while playback is in progress.
● When you connect a storage device, playback starts with the first track. If you previously
listened to the same device and have not removed it, playback will start at the last played
track, even if you have turned off the player in the meantime.
● To disconnect a USB plug, simply remove it from the socket; to remove an SD/SDHC/MMC
card, press first, then pull out. When inserting a memory card, you need to press it in firmly.
If properly connected, the card does not stick out from the player and the magnetic lid can
be closed.
● The angled corner of the SD/SDHC/MMC should be at the top in the front, with the
connectors visible on the right. Never touch the connectors with your hand.
● You can only plug in a USB stick in one way. If it is stuck, turn it upside down and try again;
do not force it into the slot.
● Make sure that the storage device sticking out of the player does not prevent you from
driving safely; do not hit the memory stick or break it off. SD cards are preferred because
these can be used even with the magnetic lid closed.
● It is very important to keep the USB/SD/SDHC/MMC connectors clean both in the player
and on the storage device. The connectors must be clean of hair, dirt, dust etc.
● It is not recommended to connect both a USB stick and an SD card at the same time to the
player.
● If you leave the storage device in your car when the temperature is extremely high or low,
the device may be damaged.
Press this button to toggle between playback and pause.
2/INT
Track intro function: the player plays the first 10 seconds of every available MP3 track. The
display shows the current track number and the symbol INT flashing. If you choose to play an
entire track, press 2/INT again to exit the intro mode and continue playing the current track.
3/RPT
If you press this button during playback, the player will repeat the current track in an endless
loop. The display then shows ONE symbol.If you press the button again to turn off repeat one,
and then press again to repeat all songs, and it will display ALL. You can seek new tracks
with the back and next buttons; the player will always keep repeating the last selected track.
4/RDM
If you press this button during playback, the player will play all available tracks in a random
order. This can make even a well-known collection of tracks exciting again. The display
shows RDM.If you press the button again, playback will continue in the original order.

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The and buttons jump to a random track in this mode.
5/-10 & 6/+10
1. You can use these buttons to jump 10 tracks forward or backward during playback. If there
are less than 10 tracks remaining at the start or end of the playlist, the player goes to the first
or last track.
2. You also can use these buttons to select folder forward or backward during playback.
Press 5/-10 for 2 seconds, you can select the former folder, and press 6/+10 2 seconds, you
can select the next folder.
and
Press the buttons repeatedly to move to the previous or next track. Track number shows on
the display.
If you press and hold these buttons, you can fast forward or backward the current track. Play
starts from when you release the button.
AUX STEREO INPUT
You can connect any external device with a headphone output to the front panel through a 3.5
mm stereo Jack.
You can listen to these portable devices in good quality through your car radio's speakers if
you select the AUX mode by pressing the MODE button.
● In order to connect products that do not have a 3.5 mm earphone output (e.g., cell phones)
you may need to purchase an external adapter.
● For further information, refer to the instructions of the device you wish to connect.
SETTING THE CURRENT TIME
When the player is on or off status, press and hold the CLK button for several seconds until
the clock time is blinking, rotate SEL knob clockwise or anti-clockwise to adjust the hours,
then press SEL button switch to minutes adjustment, rotate SEL knob clockwise or
anti-clockwise again to adjust the minutes. Finally, press CLK button to confirm the
adjustment.
● Press CLK button, the current clock time is displayed and it will returns to previous display
after it has not been adjust for 3 seconds or press it again.
CONNECTING AN EXTERNAL AMPLIFIER
The preamp output at the back of the head unit allows you to connect an external amplifier or
active sub box with a low input level to the player.
This way you can achieve even better volume and sound quality.
White RCA socket: right channel output; Red RCA socket: Left channel output.
【WARNINGS】
● Before starting to use the player, read these instructions carefully, then keep them in an
accessible place for future reference.
● If needed, consult a technician before installing the player to avoid damaging the product or
your vehicle.
● While underway, do not do anything that distracts your attention from driving. Manipulating

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the player while driving can result in accidents. If needed, stop the car while
manipulatingthe player.
● Do not listen to the player too loud. Set a volume that allows you hear external sounds
while driving. Extreme volumes can also cause permanent damage to your ears.
·Spend as little time as possible watching the display. Doing so can distract your attention
from the road, and result in accidents.
● Do not disassemble or tamper with the player, as that can cause fire, accidents, or electric
shock. Incorrect use or installation renders the warranty void.
● Only for use in cars with a 12 V battery and a negative ground. Using the player for any
other purpose can result in electric shock, damage, or fire. The player was designed
exclusively for use in vehicles.
● Always use melting fuses with the proper values. When replacing a fuse, make sure that
the new fuse has the same nominal value as the one you are replacing. Using a different
fuse can cause fire or damage.
● Do not block the player's cooling vents, as that can cause its circuits to overheat, resulting
in fire. Install the player properly to ensure adequate ventilation. The air vents around the
edge must be left free.
● Make sure to connect the player correctly. Incorrect connections can result in fire or other
damage.
● Before connecting/installing the player disconnect the negative pole of the car's battery.
Doing so helps you prevent electric shock or short circuits.
● While installing the player never cut through cables or damage their insulation. Doing so
can result in short circuit and fire.
● Before drilling holes or inserting screws into your vehicle's body make sure you do not
damage tubes or electric wires on the other side of the cover.
● Do not connect to any electric systems of your vehicle that operate steering, brakes, or any
other safety function. Doing so can result in loss of control over the vehicle, and can cause
fire.
● Do not install the player or its accessories in a location where they can prevent you from
controlling the vehicle safely, e.g., between the steering wheel and the gear shift.
● Make sure that wires do not coil around neighboring objects. Arrange cables and wires in a
way that does not hinder you in driving. Wires that interfere with your movement or hang
over the gear shift, the brake etc. can be extremely dangerous. (E.g.,the connection cable
of a media player connected to the USB port.)
● In case of any malfunction, turn off the player immediately, and consult your distributor.
Many malfunctions are very easy to spot (e.g., no sound, bad smell, smoke, an external
object inside the product etc.).
● Make sure that no external objects get into the USB socket or the memory card slot, as
these can cause fatal damage.
● When leading the connection cables make sure that their insulation does not get damaged
by any sharp metal objects nearby.
● Do not connect any cables when the device is working. Never turn on the system with the
volume at the maximum level. The pop or other noise spike which can be heard when
switching on can cause irreparable damage to the speakers immediately.

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● The warranty is not applicable to damage caused by irresponsible or improper installation
or use.
【PRECAUTIONS】
CLEANING
Use a soft, dry cloth and a brush for regular cleaning. To remove stronger stains, wet the cloth
slightly with water. Avoid scratching the display's surface;never wipe the display when it is dry,
and do not use a coarse cloth to clean the display. Do not use detergents. Make sure no liquid
gets inside the product or onto the connectors!
TEMPERATURE
Before turning on the player make sure that the temperature inside the car is between -20 ℃
and +55℃, as the product is only guaranteed to operate properly within this temperature
range. Extreme weather conditions can damage the product.
FINDING THE RIGHT LOCATION AND INSTALLATION
When installing the product, make sure it will not be exposed to any of the following:
direct sunlight or heat (e.g. from the heating system)
wetness, high humidity
a significant amount of dust
strong vibration
If installed angle exceeds 30 degrees from horizontal, the unit might not give its optimum
performance.
USING THE USB/SD CONNECTOR
● You can connect a USB stick ("pen drive"), MP3 audio player, MP4 media player or similar
devices to the players USB port. The memory card slot can host SD/SDHC/MMC cards.
Supported file format for playback: MP3/WMA audio files.
● In some cases, external USB/SD devices may not be guaranteed to work properly.
Manufacturers occasionally change the internal design of their products (e.g., replace a chip
used inside), which does not change the product's main technical parameters, but it can
affect the operation of devices designed for a similar but previous generation product. It is
therefore possible that even products of the exact same type yield different results. Do not
use a USB hub; extension cords are allowed. Do not connect both a USB stick and an SD
card at the same time to the player.
● It is recommended to store the tracks you wish to play in the root folder. You can define the
playback order of the tracks by renaming the files or adding a number at the front. We do not
recommend the use of storage devices over 8GB because a large number of tracks can
increase the time needed to access each track. Only store MP3 files for playback on the
storage device; the presence of other data/files can slow down the player or interfere with
playback.
● The player detects MP3 files stored in sub-folders as well, up to a depth of 6 sub-folders.
● In order to protect their precision connectors, it is important to always insert and remove
USB/SD/SDHC/MMC devices in a straight position.
If you insert a device at an angle, you can damage the connection socket on the player itself.

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● SD cards are preferred over USB sticks because their design allows you to connect them in
a safer and more stable way. In addition, SD cards do not stick out of the player, which
reduces the risk of damaging the player by accidentally hitting the connected device or the
magnetic lid. Any damage resulting from such user error is not considered as a
manufacturing defect, and is not covered by the warranty.
● You can leave SD cards safely in the socket; the card fits under the closed magnetic lid.
Warnings!
The manufacturer takes no responsibility for lost or damaged data, even if such loss or
damage occurs while using the player. Before connecting the storage device, it is
recommended to create a backup of the data and tracks on it on your personal computer.
PROPER USAGE OF USB STICKS/SD CARDS
To avoid malfunction and errors, please observe the following:
● Carefully read the instructions of the USB/SD storage device or media player.
● Do not touch the connectors with your hand or any object; keep the connectors clean.
● Protect the USB/SD device from strong shocks.
● Do not bend, drop, disassemble or modify these devices, and protect them from humidity!
Do not use or store the devices in the following locations:
● Anywhere inside the vehicle where they are exposed to direct sunlight or high temperature.
● Any place with a high humidity or where corrosive materials are present.
● Place the devices in a location where they do not hinder you in driving.
Further important notes:
● USB/SD memory devices may not function properly at extremely high or low temperatures.
● Only use high-quality USB/SD devices. Depending on their type and condition, even such
high-quality products may not always work properly. The proper operation of these devicesis
not always guaranteed.
● Depending on the type and condition of the USB/SD device and the settings used in the
software that encoded the MP3 files, the player may not detect or play back certain files.
● The player is not guaranteed to play copy-protected files (legal copyright protection).
● The USB/SD memory device may need a certain amount of time before playback can start.
If the device also includes non-audio files, the time needed for playback to start may be
significant.
● The product can play files with an .mp3 extension. Do not use this extension on files that do
not contain pure audio data. The player cannot process such non-audio data. The noise
emitted when playing such files can damage the speakers and/or amplifiers.
● Do not remove the USB/SD device while playback is in progress. In order to protect it from
potential damage, first switch to a different signal source by pressing the MODE button, and
only then remove the USB/SD device.
● If you connect a portable audio player instead of a USB/SD memory through the USB port,
and the device has an MSC/MTP setting, choose the MTP option. The remarks above also

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apply when you are connecting an audio player.
【INSTALLATION】
DIN FRONT-MOUNTING METHOD
1. Dashboard
2. Holder
After inserting the holder into the dashboard,
select the appropriate tab according to the
thickness of the dashboard material and bend
them inwards to secure the holder in place.
3. Screw
1. Slide down the mounting frame from the product, and fasten the frame inside your vehicle's
dashboard!
If the mounting frame fits too loosely into the dashboard, you can bend the perforated parts
outwards using a screwdriver, which allows you to achieve a stable fit.
You can choose which parts to unfold depending on the width of the dashboard.
2. Carefully slide the player into the fastened frame until it clicks. If your vehicle has a holder
console, then fasten the rear M4 screw of the head unit to the vehicle. This, together with the
mounting frame, ensures that the product is mounted in a stable way.
● Depending on your vehicle's design you may need to purchase an additional metal strap or
other accessory for mounting. For some vehicles you may need to follow different steps for
installation than those described here!
● When removing the player(and if needed, also when installing it), snap off the plastic frame
around the front panel. Slide in a flat object (plate) of approximately 8 x 1 cm in the middle on
both sides, into the rail there. You can then pull out the player from the metal fastening frame.
If you previously fastened the screw at the back, then you also need to unscrew that together
with the electric connections.
3.Connect the player's cables as described in the instructions. Before making the
connections, make sure the connectors of your vehicle are suitable according to the
connection/circuit scheme provided in this document. Make sure that the connections are
correct and there are no short circuits. Lead the speaker cables away carefully. If needed,
consult a technician.
● Do not connect the negative pole of the speakers with the negative pole (ground) of the
vehicle or the power source!
4. Turn on the player and adjust the settings as described previously. Enjoy listening to your
music while traveling, and have a safe drive!

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【PERFORMANCE INDEX】
FM TUNER
FM frequency range.............................87.5 - 108.0 MHz
Usable sensitivity..................................................3.0 µV
Sensitivity...........................................30 dB S/N >10 dB
IF frequency.....................................................10.7 MHz
Channel separation.............................................>45 dB
Signal/noise level................................................>50 dB
USB/SD/SDHC/MMC
USB system................................................USB 1.1/2.0
Max. Current......................................................500 mA
File system................................................FAT 12/16/32
MP3 decoder........................MPEG-1 AUDIO Layer-3
Number of channels...................................2-CH, stereo
Channel separation.............................................>55 dB
Signal/noise level................................................>60 dB
GENERAL PARAMETERS
Car Voltage system........12 Volt Negative GND chassis
Operation Voltage.........................14,4 V DC(11 - 15 V)
Channels of amplifier..............................................4CH
Power output............................................4x 60W max.
Speaker impedance........................................4-8 Ohm
Frequency range....................................20 - 20.000 Hz
Pre-amp output............................ 1.2V max. (4 x RCA)
Tone regulation ....................Bass, treble, classic, pop,
rock, flat
T operation.............................................0℃ ....+40℃
Weight.................................................................0.7 kg
Chassis dimensions.......................178 x 90 x 50mm

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【TROUBLESHOOTING】
Before going through the check list, check the wiring connection diagram firstly. If any of the
problems persist after checklist has been made, consult your nearest service dealer.
Symptom Causes Solution
No Power
The car ignition key has not
been switched on
If the power supply is properly
connected to the car accessory
terminal, switch the ignition key to
ACC
The fuse is blown down Replace a new fuse
No Sound
Volume is at minimum Adjust volume to desired level
Wiring is not properly
connected Checking wiring connection
Mute state Turn off the mute function
Sound Skipping The installation angle is more
than 30°
Adjust the installation angle to less
than 30°
The Operation button
do not work
The built-in microcomputer is
not operating properly due to
interference
Press the RESET button or
re-install the front panel properly.
The Radio or
automatic selection
does not work
The antenna cable is not
connected correctly
Connect the antenna cable
correctly
The signals are too week Select the station manually

Disposal of an old unit
User information regarding disposal of
electric and electronic devices (private
households)
This symbol on products or in their
manuals implies that electric and
electronic devices at the end of their
service life should be separated from
the domestic waist.
Please hand these products for recy-
cling at municipal collection points free
of charge.
The proper disposal of these products
contributes to environment protection.
To find the nearest collection point
or recycling yard please consult your
municipal administration.
Disposal of the battery
According to the battery decree we
make you aware of your obligation to
dispose of empty batteries at municipal
collection points.
Batteries that contain pollutants
(e.g. Hg = mercury, Pb = lead, Cd =
cadmium) are labelled with the symbol
pictured above.
At our place you can free dispose of the
empty batteries purchased at our store.
XOMAX distribution worldwide
Purchase XOMAX car radio online:
https://www.carmediashop.de
XOMAX in the world wide web
XOMAX manufacturer's information:
http://www.xomax.de
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