Daewoo DS-2000N User manual

SERVICEMANUALMODEL
DS-2000N
CAUTION:Beforeservicingthischassis,readthe"PRODUCTSAFETYSERVICEFORVIDEOPRODUCTS"section
onpage2ofthismanual.
DVDandCD
PLAYER

DVDVIDEOPLAYER
GENERAL
Signalsystem
Laser
Frequencyresponse
Signal/Noiseratio
Powersupply
Powerconsumption
Dimensions
Operatingtemperature
Weight
Audiodistortion+noise
ChannelSeparation
Dynamicrange
Videooutputs
S-videooutputs
Audiooutputs(digitalaudio)
Audiooutputs(analogaudio)
OUTPUTS
NTSC/AUTO/PAL
wavelength650nm
20Hz20kHz
85dB
-80dB(1kHz)
90dB(1kHz)
85dB(1kHz)
1.0V(p-p),75ohm,negativesync.
(Y)1.0V(p-p),(C)0.286V(p-p)
75ohm,negativesync.
0.5V(p-p),75ohm
2.0Vrams(1KHz,0.8dB),10Kohm
AC120V,60Hz
20W
435x90x280(mm)
540
Around4kgs
SEPECIFICATION

CAUTION:DONOTATTEMPTTOMODIFYTHISPRODUCTINANYWAYAND
NEVERPERFORMCUSTOMIZEDINSTALLATIONSWITHOUT
MANUFACTURER'SAPPROVAL.UNAUTHORIZEDMODIFICATIONSWILLNOT
ONLYVOIDTHEWARRANTY,BUTMAYLEADTOYOURBEINGLIABLEFOR
ANYRESULTINGPROPERTYDAMAGEORUSERINJURY.
SERVICEWORKSHOULDBEPERFORMEDONLYAFTERYOUARE
THOROUGHLYFAMILIARWITHALLOFTHEFOLLOWINGSAFETYCHECKS
ANDSERVICINGGUIDELINES.TODOOTHERWISE,INCREASESTHERISKOF
POTENTIALHAZARDSANDINJURYTOTHEUSER.
WHILESERVICING,USEANISOLATIONTRANSFORMERFORPROTECTION
FROMA.C.LINESHOCK.
AFTERTHEORIGINALSERVICEPROBLEMHASBEENCORRECTED,ACHECK
SHOULDBEMADEOFTHEFOLLOWING.
1.BESURETHATALLCOMPONENTSAREPOSITIONEDINSUCHAWAYAS
TOAVOIDPOSSIBILITYOFADJACENTCOMPONENTSHORTS.THISIS
ESPECIALLYIMPORTANTONTHOSEMODULESWITCHARE
TRANSPORTEDTOANDFROMTHEREPAIRSHOP.
2.NEVERRELEASEAREPAIRUNLESSALLPROTECTIVEDEVICESSUCHAS
INSULATORS,BARRIERS,COVERS,SHIELDS,STRAINRELIEFS,POWER
SUPPLYCORDS,ANDOTHERHARDWAREHAVEBEENREINSTALLEDPER
ORIGINALDESIGN.BESURETHATTHESAFETYPURPOSEOFTHE
POLARIZEDLINEPLUGHASNOTBEENDEFEATED.
3.SOLDERINGMUSTBEINSPECTEDTODISCOVERPOSSIBLECOLD
SOLDERJOINTS,SOLDERSPLASHESORSHARPSOLDERPOINTS.BE
CERTAINTOREMOVEALLLOOSEFOREIGNPARTICLES.
4.CHECKFORPHYSICALEVIDENCEDFDAMAGEORDETERIORATIONTO
PARTSANDCOMPONENTS,FORFRAYEDLEADSANDDAMAGED
INSULATION(INCLUDINGA.C.CORD),ANDREPLACEIFNECESSARY
FOLLOWORIGINALLAYOUT,LEADLENGTHANDDRESS.
5.NOLEADORCOMPONENTSHOULDTOUCHARECEIVINGTUBEORA
RESISTORRATEDAT1WATTORMORE.LEADTENSIONAROUND
PROTRUDINGMETALSURFACESMUSTBEAVOIDED.
6.ALLCRITICALCOMPONENTSSUCHASFUSES.FLAMEPROOFRESISTORS,
CAPACITORS ,ETC.MUSTBEREPLACEDWITHEXACTFACTORYTYPES,
DONOTUSEREPLACEMENTCOMPONENTSOTHERTHANTHOSE
SPECIFIEDORMAKEUNRECOMMENDEDCIRCUITMODIFICATIONS.
7.AFTERRE-ASSEMBLYOFTHESET,ALWAYSPERFORMANA.C.LEAKAGE
TESTONALLEXPOSEDMETALLICPARTSOFTHECABINET,(THE
CHANNELSELECTORKNOB,ANTENNATERMINALS.HANDLEAND
SCREWS)TOBESURETHESETISSAFETOOPERATEWITHOUTDANGER
OFELECTRICALSHOCK.DONOTUSEALINEISOLATIONTRANSFORMER
DURINGTHISTEST,MAKESURETOUSEANA.C.VOLTMETER.HAVING
5000OHMSPERVOLTORMORESENSITIVITY,INTHEFOLLOWING
MANNER;CONNECTA1500OHMS10WATTRESISTOR,PARALLELEDBY
A.15MFD.150VA.C.TYPECAPACITORBETWEENAKNOWNGOODEARTH
GROUND(WATERPIPE,CONDUIT,ETC.)ANDTHEEXPOSEDMETALLIC
PARTS,ONEATATIME.MEASURETHEA.C.VOLTAGEACROSSTHE
COMBINATIONOF1500OHMRESISTORAND15MFDCAPACITOR.
REVERSETHEA.C.PLUGANDREPEATA.C.ANYVOLTAGE
MEASUREMENTSFOREACHEXPOSEDMETALLICPART.VOLTAGE
MEASUREDMUSTNOTEXCEED75VOLTSR.M.S.THISCORRESPONDS
TO0.5MILLIAMPA.C.ANYVALUEEXCEEDINGTHISLIMITCONSTITUTESA
POTENTIALSHOCKHAZARDANDMUSTBECORRECTEDIMMEDIATELY.
THELIGHTNINGFLASHWITHAPROWHEADSYMBOL.WI THINAN
EQUILATERALTRIANGLE,ISINTENDEDTOALERTTHESERVICE
PERSONNELTOTHEPRESENCEOFUNINSULATED"DANGEROUS
VOLTAGE"THATMAYBEOFSUFFICIENTMAGNITUDETO
CONSTITUTEARISKOFELECTRICSHOCK.
THEEXCLAMATIONPOINTWITHINANEQUILATERALTRIANGLEIS
INTENDEDTOALERTTHESERVICEPERSONNELTOTHE
PRESENCEOFIMPORTANTSAFETYINFORMATIONINSERVICE
LITERATURE.
SAFETYCHECKS
SUBJECT:FIRE&SHOCKHAZARD
SUBJECTGRAPHICSYMBOLS
PLACETHISPROBE
ONEACHEXPOSED
METALPART
SUBJECT:X-RADIATION
SUBJECT:IMPLOSION
SUBJECT:TIPSONPROPERINSTALLATION
1.BESUREPROCEDURESANDINSTRUCTIONSTOALLSERVICEPERSONNEL
COVERTHESUBJECTOF
2.ONLYFACTORYSPECIFIEDC.R.TANODECONNECTORSMUSTBEUSED.
DEGAUSSINGSHIELDSALSOSERVEASANX-RAYSHIELDINCOLORSETS,
ALWAYSRE-INSTALLTHEM.
3.ITISESSENTIALTHATSERVICEPERSONNELHAVEAVAILABLEAN
ACCURATEANDRELIABLEHIGHVOLTAGEMETER.THECALIBRATIONOF
THEMETERSHOULDBECHECKEDPERIODICALLYAGAINSTA
REFERENCESTANDARD,SUCHASTHEONEAVAILABLEATYOUR
DISTRIBUTOR.
4.WHENTHEHIGHVOLTAGECIRCUITRYISOPERATINGPROPERLY,THEREIS
NOPOSSIBILITYOFAN
5.WHENTROUBLESHOOTINGANDMAK INGTESTMEASUREMENTSINA
PRODUCTWITHAPROBLEMOFEXCESSIVEHIGHVOLTAGEAVOIDBEING
UNNECESSARILYCLOSETOTHEPICTURETUBEANDTHEHIGHVOLTAGE
SUPPLYDONOTOPERATETHEPRODUCTLONGERTHANITISNECESSARY
TOLOCATETHECAUSEOFEXCESSIVEVOLTAGE.
6.REFERTOHV.B+ANDSHUTDOWNADJUSTMENTPROCEDURES
DESCRIBEDINTHEAPPROPRIATESCHEMATICANDDIAGRAMS(WHERE
USED).
1.ALLDIRECTVIEWEDPICTURETUBESAREEQUIPPEDWITHANINTEGRAL
IMPLOSIONPROTECTIONSYSTEM,BUTCARESHOULDBETAKENTO
AVOIDDAMAGEDURINGINSTALLATION,AVOIDSCRATCHINGTHETUBE.IF
SCRATCHEDREPLACEIT.
2.USEONLYREC OMMENDEDFACTORYREPLACEMENTTUBES.
1.NEVERINSTALLANYPRODUCTINACLOSED-INRECESS.CUBBYHOLEOR
CLOSELYFITTINGSHELFSPACE,OVERORCLOSETOHEATDUCT,ORIN
THEPATHOFHEATEDAIRFLOW.
2.AVOIDCONDITIONSOFHIGHHUMIDITYSUCHAS:OUTDOORPATIO
INSTALLATIONSWHEREDEWISAFACTOR,NEARSTEAMRADIATORS
WHERESTEAMLEAKAGEISAFACTOR,ETC.
3.AVOIDPLACEMENTWHEREDRAPERIESMAYOBSTRUCTREARVENTING.
THECUSTOMERSHOULDALSOAVOIDTHEUSEOFDECORATIVE
SCARVESOROTHERCOVERINGSWHICHMIGHTOBSTRUCTVENTILATION.
4.WALLANDSHELFMOUNTEDINSTALLATIONSUSINGACOMMERCIAL
MOUNTINGKI T,MUSTFOLLOWTHEFACTORYAPPROVEDMOUNTING
INSTRUCTIONS.APRODUCTMOUNTEDTOASHELFORPLATFORMMUST
RETAINITSORIGINALFEET(ORTHEEQUIVALENTTHICKNESSINSPACERS)
TOPROVIDEADEQUATEAIRFLOWACROSSTHEBOTTOM.BOLTSOR
SCREWSUSEDFORFASTENERSMUSTNOTTOUCHANYPARTSOR
WIRING.PERFORMLEAKAGETESTONCUSTOMIZEDINSTALLATIONS.
5.CAUTIONCUSTOMERSAGAINSTTHEMOUNTINGOFAPRODUCTON
SLOPINGSHELFORATILTEDPOSITION,UNLESSTHEPRODUCTIS
PROPERLYSECURED.
6.APRODUCTONAROLL-ABOUTCARTSHOULDBESTABLEONITS
MOUNTINGTOTHECARTCAUTIONTHECUSTOMERONTHEHAZARDSOF
TRYINGTOROLLACARTWITHSMALLCASTERSACROSSTHRESHOLDS
ORDEEPPILECARPETS.
7.CAUTIONCUSTOMERSAGAINSTTHEUSEOFACARTORSTANDWHICH
HASNOTBEENLISTEDBYUNDERWRITERSLABORATORIES,INC.FORUSE
WITHTHEIRSPECIFICMODELOFTELEVISIONRECEIVEROR
GENERICALLYAPPROVEDFORUSEWITHTV'SOFTHESAMEORLARGER
SCREENSIZE.
8.CAUTIONCUSTOMERSAGAINSTTHEUSEOFEXTENSIONCORDS.EXPLAIN
THATAFORESTOFEXTENSIONSSPROUTINGFROMASINGLEOUTLET
CANLEADTODISASTROUSCONSEQUENCESTOHOMEANDFAMILY.
X-RADIATION.THEONLYPOTENTIALSOURCEOF
X-RAYSINCURRENTT.V.RECEIVERSISTHEPICTURETUBE.HOWEVER,
THISTUBEDOESNOTEMITX-RYSWHENTHEHIGHVOLTAGEISATTHE
FACTORYSPECIFIEDLEVEL.THEPROPERVALUEISGIVENINTHE
APPLICABLESCHEMATIC.OPERATIONATHIGHERVOLTAGESMAYCAUSEA
FAILUREOFTHEPICTURETUBEORHIGHVOLTAGESUPPLYAND,UNDER
CERTAINCIRCUMSTANCES,MAYPRODUCERADIATIONINEXCESSOF
DESIRABLELEVELS.
X-RADIATIONPROBLEM.EVERYTIMEACOLOR
CHASSISISSERVICED,THEBRIGHTNESSSHOULDBERUNUPANDDOWN
WHILEMONITORINGTHEHIGHVOLTAGEWITHAMETERTOBECERTAIN
THATTHEH IGHVOLTAGEDOESNOTEXCEEDTHESPECIFIEDVALUEAND
THATITISREGULATINGCORRECTLY.WESUGGESTTHATYOUANDYOUR
SERVICEORGANIZATIONREVIEWTESTPROCEDURESSOTHATVOLTAGE
REGULATIONISALWAYSCHECKEDASASTANDARDSERVICING
PROCEDUREANDTHATTHEHIGHVOLTAGEREADINGBERECORDEDON
EACHCUSTOMER'SINVOICE.
PRODUCTSAFETYSERVICINGGUIDELINESFORVIDEOPRODUCTS
GOODEARTHGROUND
SUCHASTHEWATER
PIPE,CONDUIT,ETC.

CAUTION:BeforeservicingtheDVDcoveredbythis
servicedataanditssupplementsandADDENDUMS,read
andfollowthe:if
unforeseencircumstancescreateconflictbetweenthe
followingservicingprecautionsandanyofthesafety
precautionsinthispublications,alwaysfollowthesafety
precautions.
1.AlwaysunplugtheDVDACpowercordfromtheAC
powersourcebefore:
(1)Removingorreinstallinganycomponent,circuitboard,
module,oranyotherassembly.
(2)Disconnectionorreconnectinganyinternalelectrical
plugorotherelectricalconnection.
(3)Connectingatestsubstituteinparallelwithan
electrolyticcapacitor
Awrongpartsubstitutionorincorrect
polarityinstallationofelectrolyticcapacitorsmay
resultinanexplosionhazard.
2.DonotspraychemicalsonornearthisDVDoranyofits
assemblies.
3.Unlessspecifiedotherwiseinthisservicedata,clean
electricalcontactsbyapplyinganappropriatecontact
cleaningsolutiontothecontactswithapipecleaner,
cotton-tippedswab,orcomparablesoftapplicator.
Unlessspecifiedotherwiseinthisservicedata,
lubricationofcontactsisnotrequired.
4.Donotdefeatanyplug/socketB+vo ltageinterlockswith
witchinstrumentscoveredbythisservicemanualmight
beequipped.
5.DonotapplyACpowertothisDVDand/oranyofits
electricalassembliesunlessallsolid-statedeviceheat
sinksarecorrectlyinstalled.
6.Alwaysconnecttestinstrumentgroundleadtothe
appropriategroundbeforeconnectionthetest
instrumentpositivelead.Alwaysremovethetest
instrumentgroundleadlast.
DisconnecttheattachmentplugtromtheACoutletandturn
thepoweron.Connectaninsulationresistancemeter(500V)
tothebladesoftheattachmentplug.Theinsulation
resistanc ebetweeneachbladeoftheattachmentplugand
accessibleconductiveparts(Note1)shouldbemorethan
1Mohm.AccessibleConductivePartsincludingMetal
panels,inputterminals,Earphonejacks,etc.
SAFETYPRECAUTIONSNOTE
RememberSafetyFirst:
GeneralServicingPrecautions
InsulationCheckingProcedure
Caution:
Note1:
ElectrostaticallySensitive(ES)Devices
Somesemiconductor(solidstate)devicescanbedamaged
easilybystaticelectricity.Suchcomponentscommonlyare
calledElectrostaticallySensitive(ES)Devices.Examplesof
typicalESdevicesareintegratedcircuitsandsomefield
effecttransistorsandsemiconductorchipcomponents.
Thefollowingtechniquesshouldbeusedtohelpreducethe
incidenceofcomponentdamagecausedbystaticelectricity.
1.Immediatelybeforehandlinganysemiconductor
componentorsemiconductor-equippedassembly,drain
offanyelectrostaticchargeonyourbodybytouchinga
knownearthgro und.Alternatively,obtainandweara
commerciallyavailabledischargingwriststrapdevice,
whichshouldberemovedforpotentialshockreasons
priortoapplyingpowertotheunitundertest.
2.AfterremovinganelectricalassemblyequippedwithES
devices,placetheassemblyonaconductivesurface
suchasaluminumtoil,topreventelectrostaticcharge
builduporexposureoftheassembly.
3.UseonlyaGROUNDED-tipsolderingirontosolderor
unsolderESdevices.
4.Useonlyananti-staticsolderremovaldevice.Some
solderremovaldevicesnotclassifieda"anti-static"can
genera teelectricalchargessufficienttodamageES
devices.
5.Donotusefreon-propelledchemicals.Thesecan
generateelectricalchargesufficienttodamageES
devices.
6.DonotremoveareplacementESdevicefromits
protectivepackageuntilimmediatelybeforeyouare
readytoinstallit.(MostreplacementESdevicesare
packagedwithleadselectricallyshortedtogetherby
conductivefoam,aluminumfoil,orcomparable
conductivematerial.)
7.Immediatelybeforeremovingtheprotectivematerial
fromtheleadsofareplacementESdevice,touchthe
protectivematerialtothechassiso rcircuitassembly
intowhichthedevicewillbeinstalled.
Caution:Besurenopowerisappliedtothechassisor
circuit,andobserveallothersafetyprecautions.
8.Minimizebodilymotionswhenhandlingunpackaged
replacementESdevices.(Normallyharmlessmotion
suchasthebrushingtogetherofyourclothesfabricorthe
liftingofyourfootfromacarpetedfloorcangenerate
staticelectricitysufficienttodamageanESdevice.)
SERVICINGPRECAUTIONS

TABLEOFCONTENTS
1.CONTROLSANDFUNCTIONS1
2.ELECTRICALADJUSTMENTS
3.ELECTRICALTROUBLESHOOTINGGUIDE
4.WAVEEFORMSON VIDEOCIRCUIT
5.ACTIONOF PORT
6.VOLTAGECHART
7.CIRCUIT DIAGRAM
8.COMPONENTSLOCATIONGUIDEONPCBBOTTOMVIEW
9.DISASSEMBLY
10.ELECTRICALPARTS LIST
4
5
16
22
26
30
34
40
41

3745
128
96
FRONT PANEL
POWER
DISC TRAY
PLAY
STOP
SKIP/SEARCH
PAUSE
DISPLAY
1
2
4
5
6
7
8
9
1
3
1. CONTROLS AND FUNCTIONS
OPEN/CLOSE REMOTE SENSOR

CD indicator
play indicator
pause indicator title indicator
remain indicator
chapter/track
indicator
lock indicator
program indicator
angle
indicator Dolby digital
indicator repeat play
indicator track calendar
DVD indicator title/chapter/track
indicator hour
indicator
minute
indicator second
indicator resume
indicator
disc recording
format
12 3
456789
10
Press DIMMER , the brightness of the display is reduced by half; press it once more, the display
becomes dark. Press the button again, the display resumes brighness.
DISPLAY
REAR PANEL
AUDIO OUT1 R
AUDIO OUT1 L
VIDEO OUT1
AUDIO OUT2 R
AUDIO OUT2 L
VIDEO OUT2
S-VIDEO
COAXIAL
OPTICAL
POWER SUPPLY CORD
2
3
4
5
6
7
8
9
10
1
2

1
2
3
4
5
67
8
9
10
11
12
13 14 15
16 17
18
19
20 21
22 23
24
25
26
27 28
29
30
OSD
DIMMER
NUMBER BUTTONS
FF/FR
SET UP
TITLE
PLAY/ENTER
PREV/NEXT(SKIP/SEARCH)
STOP
DIRECTIONS
SYSTEM
LANGUAGE
MUTE
VOLUME(-/+)
SUBTITLE
AUDIO MODE
A-B REPEAT
REPEAT
MENU
PAUSE/STEP
SLOW PLAY
ZOOM
REMAIN
RESUME
TIME SEARCH
DIGEST
PLAY MODE
ANGLE
OPEN/COLSE
REMOTE TRANSMITTER
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
NAMES AND LAYOUT OF REMOTE CONTROLS
3
1

2.ELECTRICALADJUSTMENTS
ALLCIRCUITSNEEDN'TADJUSTIFYOUFINDCLOCK(27.000MHz)
ISCHANGED,ONLYTRIMCAPC004BESIDETHECRYSTALOSCG102.
4

Connectionoftheunitiscorrect.
Isfluorescedisplaycorrect?
Ispowernormal?
Isopen/closenormal?
Candiscberead?
Isvideonormal?
Isaudionormal?
Normaloperation.
Settingoftheunitiscorrect
Refertoaudio.guide
Refertovideo.guide
Refertoreaddisc.guide
Refertoopen/close.guide
Refertodisplay.guide
Refertopowerguide.
3.ElectricalTroubleShootingGuide
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
5

F301isopen.
XP301isopen.
XP302isopen.
Powercordisn'tinsertedfirmly
orpowercordisopen.
START
Normal
IsC328AC220V?
IsC301DC310V?
IsXP303normal?
Checkiftransformerisdamaged.
Checksecondarycommutecircuit.
Checksecondaryfeedbackcircuit.
Checkifsecondaryshort.
CheckV304.
ReplaceN301.
Aretransformersecondary
6V,15Voutput?
Are2,3pinofN301resistance
highimpedance?
Checkregulatedcircuit.
CheckN302andperipheral
components.
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
APowerCircuitabnormal
Checkcommutecircuit.
CheckL301andL302.
6

START
Normal
Doesthescreen
appear?
Isdisplaynormal?
CheckifvoltageofscreenF1andF2is3.3V.
Checkifvoltageof34pinofUPD16311is-24V.
CheckgroundednegativevoltageofscreenF1andF2.
ReplaceUPD16311.
Checkifconnectioncordbetweenscreenand
mainboardisbroken?
CheckifUPD16311pinisconnected.
Checkifpinofscreenisconnected.
Yes
Yes
No
No
BDisplayabnormal
7

COpen/closeabnormal
8

DISCIN
Normal
Focuson?
Doesthediscturn?
Islasernormal?
CanTOCberead?
Refertofocusguide.
Refertofocus.guide
Refertolaser.guide
RefertoTOC.guide
Yes
Yes
Yes
Yes
No
No
No
No
DReaddiscabnormal
9

IsvoltageofXS109normal?
Nopicture,nosound.
Nopicture,havesound.
Havepicture,nocolororcolor
disappearedduringplayback.
Havepicture,butpicture
disappearedduringplayback.
Checkconnectionbetween
videoencoderandXS109.
Checkjackofoutputboard
orreplacemainboard.
Checkmainboardandreplace
G102(27MHz).
Checkmainboardandreplace
G102(27MHz).
Replacemainboard.
Yes
No
EVideoabnormal
10

Havepicture,nosound
CheckifvoltageofR,Lpin
ofXP202isnormal
IsN202andN203signal
output?
IstransistorV208and
V209formuteusage
brokendown?
Normal
Replacetransistor
Check4558andsurroundingcomponents
CheckconnectionbetweenR,LpinofXP202
andPCM1723
Yes
Yes
Yes
No
No
No
FAudioabnormal
11

Nofocus
Normal
CheckFCS+andFCS-
ofXS100.
Doesnormalvoltageat
D107pin33,34?
Doesdataoutputat
D101pin93?
Doesdataoutputat
D108pin27-31?
1.Checkconnectionbetween33,34pinof
CXD3008QandFCS+,FCS-ofXS100.
2.CheckifG101,G102normaloperation.
3.CheckCXD3008Qandperipheral
components.
1.CheckconnectionbetweenCXD1866
andCXD3008.
2.CheckCXD1866andperipheral
components.
1.CheckconnectionbetweenCPU
andCXD1866.
2.CheckCPUandperipheral
components.
1.Checkconnectioncord.
2.Replacepickup.
Yes
No
Yes
Yes
Yes
No
No
No
GFocusabnormal
12

Nolaser
Normal
IsLDpinofXS100
4.5V?
DoesvoltageatD111
pin22?
Doesnormalvoltage
atD108pin7?
1.Checkconnectionbetweenpickup
andmainboard.
2.Replacepickup.
1.CheckconnectionbetweenCXD1889
ofpinLDandXS100.
2.CheckCXD1889andperipheral
components.
1.CheckconnectionbetweenCPU
pin7andCXD1889pin25.
2.CheckCPUandperipheral
components.
Yes
Yes
No
No
No
Yes
HLaserabnormal
13

Discdoesn'tturn.
Normal
CheckifvoltageofSP+and
SP-ofXS103aredifferent.
Checkifvoltageof11and
12pinofD113aredifferent.
Checkifvoltageof144pin
ofD101isnormal.
Checkifvoltageof91-99pin,
24-31pinofD108isnormal.
1.CheckconnectionsbetweenCPUaddress
bus,databusandCXD1866.
2.CheckCPUandperipheralcomponents.
1.CheckconnectionsbetweenCXD1866
pin144andBA5983pin6.
2.CheckCXD1866andperipheral
components.
1.CheckconnectionsbetweenBA5983
andXS103.
2.CheckBA5983andperipheral
components.
Checkconnectionofmechanism.
Yes
Yes
Yes
Yes
No
No
No
No
ITurnabnormal
14

TOCdoesn'tread.
Normal
Limitedswitchisclosed.
Islaseron?
IsFOKnormal?
Doesnormalvoltageat
D111pin57?
Havesound,
nopicture.
Havepicture,
nosound.
1.CheckATAPIchannel.
2.CheckSVD3811andperipheralcomponents.
3.CheckBT865andperipheralcomponents.
4.CheckconnectionbetweenSVD3811and
BT865.
1.Checkconnectionbetween57pinof
CXD1899andXS100pin.
2.CheckconnectionbetweenXS100and
pickup.
3.Replacepickup.
1.Refertolaserguide.
2.Checkslidemotorandconnections
tomainboard.
1.CheckATAPIchannel.
2.CheckSVD3811andperipheralcomponents.
3.CheckBT865andperipheralcomponents.
4.CheckconnectionbetweenSVD3811and
BT865.
Yes
Yes
Yes
Yes
No
No
No
No
JTOCabnormal
15