Boss Audio MR637U User Manual

Preface

WIRESCONNECTION

Thankyouforpurchasingthiscaraudioproduct.
Pleasereadthismanualcarefullybeforeoperatingthiscaraudioproduct.
Pleasekeepthismanualforfutureuse.Itwillbehelpfultoyouifyouareencounterany
operationalproblem.

Selectingfineaudioequipmentisonlythestartofyourmusicalenjoyment.
Nowitistimetoconsiderhowtomaximizetheenjoymentyouwillgetfrom
knowinghowtoworkyournewcarstereoreceiver.

Wehopeyouenjoyusingthisproductandencourageyoutoalwayslistenat
amoderate,safesoundleveltoavoidanypossiblehearingdamageorloss.
Ifyoulistentoexcessivelyloudsoundovertime,yourhearingcanadaptto
highervolumesandwhatsounds"normal"toyoumaybequiteharmfuland
cancauseyoutohavepermanenthearingloss.Sopleasepractice"safesound"
andalwayslistenatmoderate soundlevelsonly.

Startwithyourvolumecontrolatthelowestsetting,andslowlyincreasethelevel
untilyoucanhearitcomfortablyandclearly,freefromdistortion.
Onceyouhaveestablishedthiscomfortablesoundlevel,leaveitthere.

WARNING!

Toreducetheriskoffireorelectricshock,donotusetheunitintherainormoisture
environment.

Topreventdirectexposuretolaserbeam,donottryopentheenclosure.
Visibleandinvisiblelaserradiationwhenopenandinterlocksdefeated.

Toprotectourenvironment,donotdisposeofelectricalequipmentinthedomesticwaste.
Pleasereturnanyelectricalequipmentthatyouwillnolongerusetothecollectionpoints
providedfortheirdisposal.
Thishelpsavoidthepotentialeffectsofincorrectdisposalontheenvironmentandhuman
health.Thiswillcontributetotherecyclingandotherformsofreutilizationofelectricaland
electronicequipment.Informationconcerningwheretheequipmentcanbedisposedofcan
beobtainedfromyourlocalauthority.

ANTENNAJACK

CONNECTORA

1.

2.

3.

4.MEMORY+12V

5.AUTOANTENNAB+

6.

7.POWERB+

8.GROUND

SPECIFICATION

GENERAL
SupplyVoltageDC12V.NegativeGround
CurrentConsumptionMax.7A
PowerOutput60WattsX4ch
Numberofchannels2Channels,Stereo
UnitDimensions178[W]X165[D]X50[H]mm.

FMSECTION
Frequencyrange87.5MHz-107.9MHz
Effectivesensitivity3uV.
I.FFrequency10.7MHz.

AMSECTION
Frequencyrange530KHz-1710KHz
Effectivesensitivity40dB.
I.FFrequency450KHz

RCALINEOUT
Output1000mV@CDMAX.

CDPLAYER
SystemMP3AudioSystem.
SuitableCDsMP3,WMA,CD,CD-R,CD-RWDisc
Frequencycharacteristics

S/NRatiotoCD[1KHz]

20Hz-20kHz+/-3dB
20Hz-20kHz+/-3dB

-80dBA

CONNECTORB

1.RearRightSpeaker(+)

2.RearRightSpeaker(-)

3.FrontRightSpeaker(+)

4.FrontRightSpeaker(-)

5.FrontLeftSpeaker(+)

6.FrontLeftSpeaker(-)

7.RearLeftSpeaker(+)

8.RearLeftSpeaker(-)

Page1

PDF created with FinePrint pdfFactory trial version http://www.pdffactory.com

Page12

TROUBLESHOOTING

Beforeusingthechecklistpleasemakealltheconnectionsfirst.
Ifyoustillhavequestionsaftergoingthroughthechecklist,pleaseconsult
yourlocalcustomerservicerepresentative.

LOCATIONANDFUNCTIONOFCONTROLS

4 518 118

CommonSymptoms

Thereisnopower.

TheCDscannot
beloaded.

TheCDsareloaded
onlyhalfwayinto
theCDtray.

Thedevicedoes
notworkcorrectly
(EJECT,LOAD,

PLAY)

Thereisnosound.

Theoperationkeys
donotwork

Thesoundofthe
CDplayerskips

Noradioreception.

Inautomaticsearch
modetheradiodoes
notstopatatrans­mittingstation.

Cause

Thecarignitionisswitchedoff.

Thefusehasblown.

PresenceofCDdiscinsidetheplayer

Thetransportscrewshavenotbeen
removed.

Insertingthediscinupsidedown

ThesurfaceofCDisextremelydirty
oritisdamaged.

Temperatureinsidethecaristoo
high.

Thevolumecontrolissettoolow.
Thedevicehasnotbeencorrectly

connected.

1.Thebuilt-inmicrocomputerisnot
operatingproperlyduetonoise

2.Frontpanelisnotproperlyfixinto
itsplace

Theinstallationangleismorethan
30degrees

Thesurfaceoftheroadisuneven.

ThesurfaceofCDisextremelydirty
oritisdamaged.

Theantennacableisnotconnected. Inserttheantennacablefirmlyintothe

weak.

Ifthepowersupplyisproperlyconnectedto
thecaraccessory,switchtheignitionkeyto

ONor"ACC""".

Replaceanotherfuseaccordingtothewiring
diagram.

Removethediscintheplayerthenputanew
upward

Removethetransportscrewsbeforeusing.

Insertthecompactdiscwiththelabelfacing
upward

CleantheCDortryanotherCD,ifthisworks
correctly,thefirstCDisproperlydamaged.

Cooloffuntiltheambienttemperaturereturns
tonormal

Turnupthevolumeproperly.
Checkthepowerandgroundconnection

accordingtothewiringdiagram.

1.Switchthedeviceoffandonagain.Orpress
theRESETbuttontoresumetheprogram.

2.Reinstallthefrontpanel

Adjusttheinstallationangletolessthan30
degrees

Waituntiltheroadbecomessmootherbefore
playingtheCD.

CleantheCDortryanotherCD,ifthisworks
correctly,thefirstCDisproperlydamaged.

antennasocketofthedevice.
Tuneintoaradiostationmanually.Thetransmissionsignalsaretoo

Solution

1

20

13

2

20

19 17

ST

FLASH

MUTE

LOUD

MP3/CDR/RWPLAYBACK

3 6 7 15 910

1&2.SEL(MENU)BUTTONANDVOLKNOB

a)PresstheSELbuttonbriefly,itisactivatedasselectingeachmodeofE.VOL.

->VOLUME->BASS->TREBLE->BALANCE->FADER->

Whenselectingadesiredaudiomode,rotatetheVOLknobtoadjustthe
audioeffect.
Ineachmode,thewaitingtimeisabout5seconds,andthetimewaitingtime
isover,itreturnstothelastdisplaymodeoftunerorCDPmode.
ThecontrolmodeofE.VOLisoperatedwithfollowingnumericdisplay.

-VOL:(MIN)00,01,......46,47(MAX).

-BASS/TRE:-07,-06,...,00,...+06,+07

-BAL:0LR9,1LR9,...,9LR9,...,9LR1,9LR0

-FAD:0FR9,1FR9,...,9FR9,...,9FR1,9FR0

b)Whenpressedandholdformorethan2seconds,itisactivatedascyclical

modeoffollowingfunctionsforusersselection.

’

->BEEP(ON/OFF)->USERSET(FLAT/CLASSIC/ROCK/POP)

->VOL(LAST/DEFA)->CLK(ON/OFF)->CLK(12/24)mode.
Whenselectingadesiredaudiomode,rotatetheVOLknobtoadjustthe
audioeffect.

14
12

16

Page11

PDF created with FinePrint pdfFactory trial version http://www.pdffactory.com

Page2