Boss Audio Systems MR637U Car Stereo System User Manual


 
Page11
LOCATIONANDFUNCTIONOFCONTROLS
Page2
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.
1&2.SEL(MENU)BUTTONANDVOLKNOB
TROUBLESHOOTING
Beforeusingthechecklistpleasemakealltheconnectionsfirst.
Ifyoustillhavequestionsaftergoingthroughthechecklist,pleaseconsult
yourlocalcustomerservicerepresentative.
CommonSymptoms
Thereisnopower.
TheCDscannot
beloaded.
Cause
Thefusehasblown.
PresenceofCDdiscinsidetheplayer
Insertingthediscinupsidedown
ThesurfaceofCDisextremelydirty
oritisdamaged.
Temperatureinsidethecaristoo
high.
Thevolumecontrolissettoolow.
Thereisnosound.
Theoperationkeys
donotwork
Thesoundofthe
CDplayerskips
Theantennacableisnotconnected. Inserttheantennacablefirmlyintothe
antennasocketofthedevice.
Noradioreception.
1.Thebuilt-inmicrocomputerisnot
operatingproperlyduetonoise
2.Frontpanelisnotproperlyfixinto
itsplace
1.Switchthedeviceoffandonagain.Orpress
theRESETbuttontoresumetheprogram.
2.Reinstallthefrontpanel
Thedevicehasnotbeencorrectly
connected.
Theinstallationangleismorethan
30degrees
Waituntiltheroadbecomessmootherbefore
playingtheCD.
Adjusttheinstallationangletolessthan30
degrees
Turnupthevolumeproperly.
Checkthepowerandgroundconnection
accordingtothewiringdiagram.
Cooloffuntiltheambienttemperaturereturns
tonormal
CleantheCDortryanotherCD,ifthisworks
correctly,thefirstCDisproperlydamaged.
Insertthecompactdiscwiththelabelfacing
upward
Removethediscintheplayerthenputanew
upward
Replaceanotherfuseaccordingtothewiring
diagram.
Thecarignitionisswitchedoff.
Ifthepowersupplyisproperlyconnectedto
thecaraccessory,switchtheignitionkeyto
ONor"ACC""".
Solution
Thedevicedoes
notworkcorrectly
(EJECT,LOAD,
PLAY)
Inautomaticsearch
modetheradiodoes
notstopatatrans-
mittingstation.
Tuneintoaradiostationmanually.Thetransmissionsignalsaretoo
weak.
TheCDsareloaded
onlyhalfwayinto
theCDtray.
Thetransportscrewshavenotbeen
removed.
Removethetransportscrewsbeforeusing.
Thesurfaceoftheroadisuneven.
ThesurfaceofCDisextremelydirty
oritisdamaged.
CleantheCDortryanotherCD,ifthisworks
correctly,thefirstCDisproperlydamaged.
1
13
20
12
16
14
2
19 17
3 6 7 15 910
4 518 118
20
MP3/CDR/RWPLAYBACK
FLASH
LOUD
ST
MUTE
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