Xomax XM-RSU255BT V2 User manual

1
XOMAX
XM-RSU255BT_V2
ENGLISH
XOMAX
Users Manual
XM-RSU255BT_V2
Version 2.0

2
XOMAX
XM-RSU255BT_V2
Thank you for purchasing one of our XOMAX products! We appreciate your con-
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 http://xomax.de/download for a current
version of user's manual or contact our customer service.
i
XOMAX
XM-RSU255BT_V2
Version 2.0
Last update 15.05.2017
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 nd 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.

3
XOMAX
XM-RSU255BT_V2
EN
Topic:
Table of contents
Table of contents
Safety instructions and
precautions 4
Introduction 6
Description .................................... 6
Specications................................. 6
Package content ............................. 7
Operating elements ........................ 8
Installation 11
Installation notes...........................11
Before the installation ....................11
Unit on/off....................................13
Insert a SD card............................13
Insert a USB ash drive..................13
AUX input.....................................13
Basic functions 14
Mode choice..................................14
Loudness......................................14
Settings .......................................14
Preset Equalizer ............................14
Loudness......................................14
LED color settings..........................15
RDS settings.................................15
Radio mode 16
Radio mode on..............................16
Automatic station searching ............16
Manual station searching ................16
Store the found stations .................16
AMS Automatic frequency scan........16
Switch the frequency bands ............16
Playback mode 17
Switch to playback mode ................17
Start the playback .........................17
Skip track for-/backwards...............17
Rewind / fast-forward.....................17
10 tracks skip for-/backwards .........17
Intro function................................17
Repeat track .................................17
Random playback ..........................17
ID3 tag (song/interpreter/album) ....17
Bluetooth connection 18
Hand-free phone call 18
Common information .....................18
Take a call ....................................18
Redial function ..............................18
End / reject a call .........................18
Bluetooth music 19
Common information .....................19
Start Bluetooth music ....................19
Operate Bluetooth music ................19
Common solutions 20
Disposal/recycling information22
Disposal of an old unit....................22
Disposal of the battery ...................22

4
XOMAX
XM-RSU255BT_V2
EN
Topic:
Safety instructions and precautions
Safety instructions and
precautions
!
Handling by stop only
To avoid any accidents please don't
handle the unit while you driving. Please
stop and park the vehicle at safety
place and handle the unit casually.
!
Installation
Please read the following manual
carefully before you install the unit. We
recommend you to let the technician
install the unit in your vehicle.
!
Regular loudness
Please set the loudness of the unit to
the appropriate level so you were still
able to hear exterior noises especially
trafc warning signals. Furthermore the
higher loudness level can damage your
hearing organs.
!
Repair of the unit
Do not open the unit. Do not try to
repair the unit by yourself due to any
emerging technical problems. While
opening the unit by yourself exists the
danger to be electrocuted. Do not use
the unit any further since you detect
any kind of technical problems. Leave
all the repair operations to professional
technicians.
Due to awed warranty seal the
warranty becomes invalid.
!
!
Power supply
Use the unit connected only to 12 Volt
on-board power supply. The minus (-)
should be connected with the ground
(GND) (negative).
Due to the wrong grounding exists the
danger of re. In case of doubt please
consult with professional technicians.
!
Replacement of fuses
While replacing the fuse please make
sure that the new fuse has the same
properties as the old one, especially the
amperage.
!
Overheating
Do not occlude the vent holes to avoid
the heat generation and accumulation
in the unit. Otherwise exists the danger
of re.
!
Regular temperature
Please make sure that the temperature
inside the vehicle amounts to not lower
-0°C or more than +40°C.
If it's too cold or hot inside the vehicle,
do not turn the unit on until the inside
temperature of the cabin increases or
descends.
!
Cleaning of the unit
Please keep the unit clean and remove
the dust from it regularly. Please use for
that a soft and dry cleaning rag.

5
XOMAX
XM-RSU255BT_V2
EN
Topic:
Safety instructions and precautions
Major soilings can be removed carefully
with the wet cleaning rag. Do not use
any chemical or alcohol-containing
detergents to avoid the damage of the
unit's varnish.
!
Handling the touchscreen
Do not press the touch keys or other
symbols too hard – it may lead to image
distortions, unit malfunctions and
touchscreen damages.
Do not use any sharp articles to use
the touchscreen. Please handle the
touchscreen with your nger or with the
appropriate stylus.
!
Moisture
To avoid the danger of re or the
electric shock do not put the unit in to
the moist environment (e.g. adverse
weather conditions, inappropriate wet
cleaning etc.)

6
XOMAX
XM-RSU255BT_V2
EN
Topic:
Introduction
Introduction
Description
The XOMAX XM-RSU255BT_V2 is a
FlashXO 1DIN-sized multimedia car
radio.
A FlashXO car radio is a contemporary
multimedia system without optical
CD/DVD drive, also called mechless
car radio. Music and audiobooks can
be played via USB ash drive or SD-/
SDHC-/SDXC-cards.
The XOMAX XM-RSU255BT_V2 has a
micro SD card slot, a regular USB plug
and a regular audio input plug. Besides
you have an option to play the music via
Bluetooth connection from your mobile
device.
The Bluetooth connectivity offers also
an attractive option to make phone calls
hand-free.
Specifications
Common data
Operating voltage ............................ 12V DC
Backlight color ............... blue, red and green
Instalation size ......... 1DIN (shortened depth)
Audio
Output power ............................. 4 x 60 Watt
Output ............................ for 4 loudspeakers
Loudspeaker impedance ................ 4 - 8 Ohm
Frequency range ........................ 20Hz-20KHz
Display
Display type ............ Digital Segment Display
Size (WxH) .......................... ca. 6,5 x 2,3cm
FM tuner
Frequency range ................... 87.5 - 108 MHz
USB-port
Plug type ........................................... Typ A
Max. supported volume ..................... 128 GB
Filesystem ............................... exFAT, FAT32
SD card slot
Slot type ...................................... micro SD
Max. supported volume...................... 128 GB
Filesystem ............................... exFAT, FAT32
Bluetooth
Version ..................................... 2.0 Class 2
Prole ............... hand-free phone calls, A2DP
Frequency ......................... 2.4GHz spectrum
Ambient temperature
Operating temperature range .... 0°C ~ +40°C
Any alternations and changes of
technical data or/and design due
to technical update of some mo-
dels need no advertisement. Errors
expected.

7
XOMAX
XM-RSU255BT_V2
EN
Topic:
Introduction
The images serve as example. Optically the may vary from the original.
Im Standard Lieferumfang ist das
folgende Zubehör enthalten:
A car radio
B ISO port adapter cable
C 1DIN installation frame (on unit)
D Mounting material
E installation manual
Please check the accessories on
completeness.
Please note: the package content
may vary due to technical updates.
i
Package content
D
E
A
B
C

8
XOMAX
XM-RSU255BT_V2
EN
Topic:
Introduction
Operating elements
1 2 3 4 5 6 7 8
IHGFECA B D9
1Rotary knob Change the volume/
Audio- or RDS settings
rotate Rotate the button clockwise to
boost the loudness and reverse to reduce
the loudness.
brief press Press the button several
times to switch between following
options: Bass, Treble, Balance, Fader,
Loudness, Equalizer and Volume.
long press Press the button briey
several times to switch between RDS
functions: AF, TA, REG and EON.
Please note that some functions may be
inavailable in your country.
2?/MOD Unit on or off/Mode selec-
tion
Press the power button to turn the unit
on. Keep it pressed for ca. 2 seconds to
turn it down.
If the unit is on, press this button to switch
between diverse modes: [Radio],[USB],
[SD], [AUX-IN], [Bluetooth].
3P T Y/M U T E PTY Option/Mute on or
off
[in radio mode]:
long press - press the button briey
several times to switch between RDS
PTY functions.
[in radio- or play mode]:
brief press - press once to turn off
audio output, press again to resume
volume level.
4Display
5T/CLK End or reject an incoming
call/Clock settings
[in telephony mode]: press the button to
end or to reject an incoming call.
[in radio- or play mode]:
brief press - the time for 5 seconds is
displayed on the display.

9
XOMAX
XM-RSU255BT_V2
EN
Topic:
Introduction
long press - hold down the button to set
the time.
6�/BAND/AMS Accept or start a call/
Frequency band/Automatic frequency
scan
[in telephony mode]: press the button to
answer a call.
[in radio mode]:
brief press - press the button to switch
between frequency bands: FM1, FM2 or
FM3.
long press - starts the automatic
frequency scan and stores the found
radio stations.
7SD SD-card slot
The SD card slot is added for reading
of SD-/SDHC/SDXC-cards in following
formats: FAT32 or exFAT le system.
Maximal supported volume: 128GB.
8USB USB-plug
The USB plug is added for reading of
USB ash drives in following formats:
FAT32 or exFAT le system.
Maximal supported volume: 128 GB.
Other USB devices such as an
external harddisc can not be supported.
9Bluetooth microphone
The microphone is used during hand-
free phone calling via Bluetooth. The
microphone should not be blocked to
achieve the best possible sound quality.
A1/< Stored radio stations/Play or
pause
[in play mode]: starts / pauses the
playback.
!
[in radio mode]: stored radio station "1".
B2/INT Stored radio stations/Intro
function
[in play mode]: rst 10 seconds play-
back of each track
[in radio mode]: stored radio station "2".
C3/RPT Stored radio stations/Repeat
[in play mode]: random playback: [REP
ONE] or [REP ALL].
[in radio mode]: stored radio station "3".
D4/RDM Stored radio stations/
Random
[in play mode]: random playback
[in radio mode]: stored radio station "4".
E5/-10 Stored radio stations/10
tracks skip/Previous folder
[in play mode]:
brief press 10 tracks skip backwards.
long press skip to the previous folder.
[in radio mode]: stored radio station "5".
F6/+10 Stored radio stations/10
tracks skip/Next folder
[in play mode]:
brief press 10 tracks skip forwards.
long press skip to the next folder.
[in radio mode]: stored radio station "6".
G8Previous track/Frequency band
scan
[in play mode]:
brief press skip to the previous track.
long press fast rewind.
[in radio mode]:

10
XOMAX
XM-RSU255BT_V2
EN
Topic:
Introduction
brief press starts the automatic radio
station search backwards.
long press switches to the manual
frequency scan backwards.
H7Next track/Frequency band scan
[in play mode]:
brief press skip to the next track.
long press fast forward.
[in radio mode]:
brief press starts the automatic radio
station search forwards.
long press switches to the manual
frequency scan forwards.
IAUX Auxiliary audio input
3,5 mm jack plug for connection with an
external playback device such as MP3
player, smarthone, tablet PC etc.

11
XOMAX
XM-RSU255BT_V2
EN
Topic:
Installation
Installation
Installation notes
Here you can nd relevant installation
notes and common information.
The detailed installation manual
you can nd on our homepage www.
xomax.de.
The printed version of a common
installation manual you can nd in
the package.
i
We recommend you to let the
technician install the unit in your
vehicle.
!
Before the installation
WARNING!
Please read the following manual care-
fully before you install the unit.
Damages caused due to an inapprop-
riate installation will not be covered by
warranty.
If you do not want to risk your warranty
entitlement, please let the technician
install the unit in your vehicle.
»To avoid a short circuit please
disconnect the vehicle battery before
the installation. To do it properly please
read the manual of your vehicle.
!
»Make sure that your vehicle is
equipped with a car radio slot of
required size 1DIN.
»As may be the case you will need
a suitable faceplate, adapter or other
accessories. These could be provided
from your local specialist supplier.
»The connection cables may not be
cutted or short-circuited. Otherwise the
warranty becomes invalid.
»Before the installation please make
sure that your vehicle has the 12 Volt
on-board power supply.
»The minus (-) should be connected
with the ground (GND) (negative).
»Please tag the polarity of the avai-
lable speakers before you disconnect
the vehicle battery.
»A proper grounding of the unit's
housing requires a clean ground
connection. Thus the grounding area
should be rust-, stain- and dust-free.
»Please ground the cable separately
from other heavy current devices such
as an amplier etc.
»Please ensure that the colored cables
are connected according to the wiring
diagram. The wrong wiring may lead to
malfunctions or even damages of the
electric elements of the vehicle.
»Please note that the connection
cables of this unit and of the other
devices may have the same purpose
but the different color. For this reason
while connecting this unit with the

12
XOMAX
XM-RSU255BT_V2
EN
Topic:
Installation
other devices please ensure that both
of the cables in each case have the
same purpose. To connect everything
correctly please refer to the manuals of
the both devices.
»Please ensure that the negative
speaker cable is in each case connected
with the negative speaker terminal of
the ISO port. Do not ever connect the
negative speaker cables with the vehicle
body.
»This unit is designed and construed
for connection with 4 speakers. Do not
combine this unit with devices that are
designed and construed for connection
with 2 speakers.
»The speakers should feature the
impedance of 4-8 Ohm and a sufcient
wattage.
»Please ensure that the speakers you
are connecting with the unit are intact.
Damaged speakers can impair the unit.
»To avoid a short circuit please isolate
all cable junctions and endings of the
unused cables with the electrical tape.
»All the cables should be layed and
xated tidy and properly. The cables
should not contact any movable or hot
objects.
»If your vehicle doesn't have an "ACC"
ignition position, please connect the red
cable with the ignition switch. Other-
wise the unit will not turn off automati-
cally, causing the discharging of the
vehicle battery.
»To avoid a rogue and hazardous
short circuit do not lay the yellow cable
through the engine bay in order to
connect it with the vehicle battery.
»Do not ever connect speaker cables
among one another. In case you do not
want to connect all the 4 speakers with
the unit please isolate the endings of
unused cables with the electrical tape
to prevent a short circuit.
»Do not ever connect the negative
speaker cables with the vehicle body.
»To ensure a awless performance of
the unit the intergration angle should
amount to +/- 30.

13
XOMAX
XM-RSU255BT_V2
EN
Topic:
Installation
Micro SD cards and USB ash
drives should have following le-
system format: FAT32 or exFAT.
Other types will not be supported.
i
AUX input
The AUX input is a 3,5 mm jack plug on
the front operating panel.
Herewith you can connect the unit with
on of the external playback devices:
MP3 player, smartphone, cellphone or
tablet PC.
An adapter cable 3,5 mm jack-to-jack
will be required.
If the external device is connected with
the unit, the playback is audible via car
radio loudspeakers.
The playback control can be achieved
via external device only.
Unit on/off
Press the ?/MODE button to turn the
unit on.
If the unit is already on, keep the
button pressed for a couple of seconds
to turn it down.
Insert a SD card
Insert a SD card into the slot with the
label side to the right and the pin side
to the left.
Make sure that the card is intact and
dirt-free.
Insert a USB flash drive
Insert an USB ash drive proper into a
USB plug.
Do not insert any heavy or big USB
ash drives in order not to hit it
accidently - it could cause damages of
the USB plug or USB ash drive.

14
XOMAX
XM-RSU255BT_V2
EN
Topic:
Basic functions
8. [in radio mode]: Stereo/Mono switch
(prompt "STEREO " on the screen)
9. 12/24 Hour mode
(prompt "CLOCK24" on the screen)
10. LED color settings
(prompt "LED AUTO " on the screen)
As soon as you choose one of the
functions to set, turn the knob on the
front panel.
* If the preset EQ is active, the BASS
and the TREBLE settings can not be
changed - these options are unavailable
in the menu. To change the BASS/
TREBLE settings you have to turn the
EQ preset off rst.
Preset Equalizer
The EQ preset offers a few factory stored
frequency settings, depending on the
musical genre of the current playback:
FLAT, Pop, Rock, Classic or EQ OFF (EQ
preset off).
Loudness
The "Loudness" function boosts BASS
and TREBLE frequencies to achieve more
voluminous sound.
To activate this function:
Press the rotary knob on the front panel
till you see the prompt "LOU DOFF" on the
screen.
You can also use for that the rotar y knob
on the front panel.
Basic functions
Mode choice
Press the ?/MOD button on the front
panel to switch between the modes:
Radio, AUX, USB and SD.
Loudness
Use for that the rotary button on the
front panel.
Rotate the button clockwise to boost
the loudness and reverse to reduce the
loudness.
Settings
Press the rotary knob on the front
panel several times to switch between
following settings:
1. Bass settings*
(prompt "BASS 0" on the screen)
2. Treble settings*
(prompt "TRE 0" on the screen)
3. Balance settings
(prompt "BAL 0" on the screen)
4. Fade settings
(prompt "FAD 0" on the screen)
5. Equalizer on/off
(prompt "EQ OFF" on the screen)
6. Loudness on/off
(prompt "LOUD OFF" on the screen)
7. [in radio mode]: Set Distance/Local
Sensitivity
(prompt "DX" on the screen)

15
XOMAX
XM-RSU255BT_V2
EN
Topic:
Basic functions
LED color settings
Press the Rotary button till the prompt
"LEDA UTO" appears on the screen. Now
rotate the button to make the adjust-
ments.
Prompt on the
display
Corresponding
parameter
LED A UTO automatic
COLOUR_1 red
COLOUR_2 green
COLOUR_3 blue
"LED AUTO "means that the background
color will be changed automatically
every 3 seconds.
RDS settings
11. AF function on/off
(prompt "AF ON" on the screen)
12. TA function on/off
(prompt "TA OFF" on the screen)
13. PTY function on/off
(prompt "PTY OFF" on the screen)
14. EON function on/off
(prompt "EON ON" on the screen)
15. Regional function on/off
(prompt "REG OFF" on the screen)
AF function (Alternative Frequency)
The AF function switches automatically
to alternative radio station as soon
as you leave the receiving area of the
current station.
We recommend you to deactivate
this function in-city. Otherwise the
searching starts each time you drive
through the tunnel.
i
TA function (Trafc Announcement)
While this function is activated the unit
switches automatically to the radio
mode for the current trafc announ-
cement. After the announcement it
switches back to the initial mode.
PTY function (Programme Type)
The Programme Type function allows
to search for a station according to it's
type (e.g. music or education).

16
XOMAX
XM-RSU255BT_V2
EN
Topic:
Radio mode
AMS Automatic frequency scan
Press the AMS button to start the
automatic frequency scan.
The unit searches automatically for the
radio stations with the strongest signal
and stores them in the memory cells
1-6 per frequency band.
Switch the frequency bands
Press the BND button on the front
panel to switch the frequency bands
between FM1, FM2 and FM3.
Radio mode on
To get to Radio mode press the ?/MOD
button several times till you see the
prompt "R adio " on the display.
Automatic station searching
Press the 8or 7button to start the
searching into corresponding direction
on the frequency scale.
Manual station searching
Keep pressed the 8or 7button
for ca. 2 seconds to switch to manual
station searching mode.
Now using the 8and 7buttons you
can search for radio stations stepwise
into corresponding direction on the
frequency scale.
After ca. 5 seconds of inactivity the
unit switchs back to automatic station
searching mode.
Store the found stations
There are 6 memory cells per FM
frequency band.
To store the current radio station keep
pressed the corresponding button (1-6)
on the front panel for ca. 2 seconds.
On the screen appears the number of
the used memory cell where the station
was stored.
Radio mode

17
XOMAX
XM-RSU255BT_V2
EN
Topic:
Playback mode
10 tracks skip for-/backwards
Press the 5/-10 / 6/+10 button on the
front panel to skip 10 tracks backwards
or forwards.
Intro function
You can activate/deactivate this function by
pressing the 2/INT button on the front
panel: only the rst 10 seconds of each
track will be played.
Repeat track
The 3/RPT button on the front panel
activates/deactivates the repeat function.
If it's on, the current track will be played
repeatedly.
Random playback
The 4/RDM button on the front panel
activates/deactivates the random playback
function. If it's on, all the tracks will be
played randomly.
ID3 tag (song/interpreter/album)
The "ID3 tag" function allows to view
the additional track information, e.g.
name of the current song/of an artist/of
an album.
This function is available only during the
MP3 les playback; the tags should be
stored in these les rst.
Playback mode
Switch to playback mode
As soon as you either plug an USB ash
drive or insert a micro SD card the
unit's processor reads the data from the
storage medium and the unit switches
to playback mode.
To get to the USB- or SD- mode
manually press the ?/MOD button
several times till the prompt "USB" or
"CARD" respectively appears on the
screen.
Start the playback
The playback starts automatically as
soon as you insert the medium (USB
ash drive or SD card) or switch to one
of these modes.
The playback can be paused/resumed
via 1/<button on the front panel.
Skip track for-/backwards
To skip to the previous/next track press
briey the 8/ 7button either on the
front panel.
Rewind / fast-forward
Hold the 8/ 7button pressed till you
get to the required passage. Then release
the button, the playback resumes.

18
XOMAX
XM-RSU255BT_V2
EN
Topic:
Bluetooth connection
Hand-free phone call
Common information
This unit contains a Bluetooth feature
"hand-free phone call" which allows to
make your phone calls hand-free via
integrated microphone and loudspea-
kers.
Take a call
By incoming call press the �/BAND/
AMS button on the front panel to
accept it.
Redial function
Hold down the �/BAND/AMS button
for approx. 2 seconds on the front panel
to redial the last number.
End / reject a call
To end the active call or to reject the
incoming call press the T/CLK button
on the front panel.
Bluetooth connection
Before the rst usage of any Bluetooth
function the unit should be connected
via Bluetooth with the device of your
choice.
A Activate the Bluetooth function on
the external device (e.g. cellphone).
B Search for a new device named
XM-RSU255BT (this very unit).
C Select it to build a connection
between your cellphone and the unit.
D If required enter the password
"0000" and conrm the entry.
E Now the both are connected.
In order to nd out how to activate the
Bluetooth function on your cellphone or
other device please read the correspon-
ding manual.
Once you have connected via
Bluetooth the unit with an external
device of your choice, the connec-
tion will be built automatically as
soon as the device appears in the
receiving area of the unit.
The Bluetooth function should be
"ON" both on the external device
and on the unit.
i

19
XOMAX
XM-RSU255BT_V2
EN
Topic:
Bluetooth music
Bluetooth music
Common information
The "Bluetooth music" feature allows to
play the music from the external device
of your choice (cellphone, smartphone,
tablet PC) via car radio speakers.
The device should support the A2DP
service.
Start Bluetooth music
Press the ?/MOD button several times
till the prompt "BT M ODE" appears on
the screen.
Now load the playback program on the
external device and start the playback.
Operate Bluetooth music
Following functions are available to
operate the playlist of the external
device via the unit:
<Pause/resume playback
8Skip to previous track
7Skip to next track
A playlist has to be created via the
external device rst.

20
XOMAX
XM-RSU255BT_V2
EN
Topic:
Common solutions
Describtion of the
problem
Cause and solution
The unit does not
turn on.
This problem is in most cases caused due to a wrong connec-
tion of the ISO cable.
Please review the pin assignments of the ISO plug and ISO
socket. Pay attention to the proper connection of the ignition-
and steady plus and correct the discrepancy if required.
Note:
Though the design of ISO port is standardized, it's pin
assigment is not and may vary. Thus in case of mismatch
of connections due to different pin assignments a simple
plug'n'play connection may lead to grievous errors.
Radio stations are
lost:
As soon as the unit
will be turned off all
the stored stations
and user's settings will
be lost.
This problem is caused due to a wrong connection of the ISO
cable.
Please interchange the cables for ignition plus and for steady
plus.
Caution:
If these wires have fuses, the latter should be interchanged as
well.
Common solutions
The following advices are generally valid and refer to diverse Xomax models with
the similar characteristics. Please note that some articles may refer not to your
model exactly and may contain the describtion of features and functions that your
model does not support.