Samsung SGH V206 User manual

SGH-V206
SERVICE
Manual
GSMTELEPHONECONTENTS
1.Specification
2.ExplodedViewsand PartsList
3.ElectricalPartsList
4.CircuitDescription
5.FlowChartofTroubleshooting
6.BlockDiagram
7.PCB Diagrams
GSMTELEPHONE

ELECTRONICS
Samsung ElectronicsCo.,Ltd.JUNE.2003
Printedin Korea.
CodeNo.:GH68-03704A
BASIC.
ⓒ
ThisServiceManual isa propertyofSamsung ElectronicsCo.,Ltd.
Anyunauthorized use ofManualcan bepunished underapplicable
Internationaland/ordomesticlaw.

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1. SGH-V206 Specification
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1-1
GSM900
Phase1EGSM900 Phase2DCS1800 Phase1PCS1900
Freq.Band[MHz]
Uplink/Downlink 890~915 935~960 880~915 925~960 1710~1785 1805~1880 1850~1910 1930~1990
ARFCNrange1~124 0~124 &
975~1023 512~885 512~810
Tx/Rxspacing 45MHz45MHz95MHz80MHz
Mod.Bit rate/
Bit Period 270.833kbps 3.692us270.833kbps 3.692us270.833kbps 3.692us270.833kbps 3.692us
TimeSlot
Period/FramePeriod 576.9us 4.615ms576.9us 4.615ms576.9us 4.615ms576.9us 4.615ms
Modulation 0.3GMSK0.3GMSK0.3GMSK0.3GMSK
MS Power33dBm~13dBm33dBm~5dBm30dBm~0dBm30dBm~0dBm
PowerClass 5pcl~15pcl5pcl~19pcl0pcl~15pcl0pcl~15pcl
Sensitivity-102dBm-102dBm-100dBm-100dBm
TDMAMux 8 8 8 8
Cell Radius35Km35Km2Km-
1. GSMGeneralSpecification

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SGH-V206 Specification
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1-2
TXPower
control levelGSM900
5 33±2 dBm
6 31±2 dBm
7 29±2 dBm
8 27±2 dBm
9 25±2 dBm
10 23±2 dBm
11 21±2 dBm
12 19±2 dBm
13 17±2 dBm
14 15±2 dBm
15 13±2 dBm
16 11±3 dBm
17 9±3dBm
18 7±3 dBm
19 5±3 dBm
TXPower
control levelDCS1800
0 30±3 dBm
1 28±3 dBm
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
7 16±3 dBm
8 14±3 dBm
9 12±4 dBm
10 10±4 dBm
11 8±4dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
TXPower
control levelPCS1900
0 30±3 dBm
1 28±3 dBm
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
7 16±3 dBm
8 14±3 dBm
9 12±4 dBm
10 10±4 dBm
11 8±4dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
2. GSMTXpower class

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2. SGH-V206 ExplodedViewand its Partslist
2-1
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1.CellularphoneExplodedView
28
1
2
3
4
5
6
7
8
9
16
11
10
17
15
14
13 12
18
19
20 21
22
24
23
25
26 27

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SGH-V206 Explodedviewand its Partlist
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2.CellularphonePartslist
LocationNO.DescriptionSEC CODE Remark
1DUALWINDOWLCDGH72-03934B
2FOLDER UPPER GH75-02355E
3MAINLCDGH07-00253A
3-1DUAL LCDGH07-00251A
4MOTOR3101-001295
5SPEAKER 3001-001297
6FOLDER LOWER GH75-02354A
7SCREW6001-001478
8SCREWCAPGH73-01052A
9WINDOWLCDGH72-05929A
10 CAMERAKNOBGH72-03941A
11 CAMERAFPCB GH59-00830A
12 CAMERASIDECOVER GH71-00719A
13 CAMERAPIECEGH72-03940A
14 CAMERAKNOBSUSGH71-00718A
15 SCREW6001-001611
16 FRONTCOVER GH75-02353A
17 VOLUMEKEYGH75-02358A
18 KEYPADGH75-02356D
19 DOMESHEETGH59-00629A
20 MAINPBAGH92-01476A
21 MICGH59-00626A
22 CONNECTORCOVER GH73-01069A
23 ANTENNAGH42-00248A
24 REARCOVER GH75-02357A
25 SCREW6001-001478
26 SCREWCAPGH73-01576A
27 RFCOVER GH73-01053A
28 BATTERYGH43-00724A900mA

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SGH-V206 Explodedviewand its Partlist
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3.TestJig(GH80-00001A)
3-1.RFTestCable
(GH39-00105A)3-2.TestCable (GH39-00122A)3-3.SerialCable
3-4.PowerSupplyCable3-5.DATACABLE
(GH39-00159A)3-6.TA (GH44-00184G)

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4. SGH-V206 Circuit Description
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1)RXPART
1.ASM(U1005)→Switching Tx,Rx pathforGSM900,DCS1800 and PCS1900 by logic controlling.
2.ASMControlLogic(U701,U702,U703)→TruthTable
VC1VC2VC3
GSMTxModeHL L
DCS/PCSTxModeLHL
PCSRxModeL L H
GSM/DCSRxModeL L L
3.FILTER
ToconvertElectromagneticFieldWavetoAcousticWave and then pass thespecificfrequency band.
-GSMFILTER(C1003,C1004,L1001)→For filtering thefrequency band between 925 ~960 MHz
-DCS FILTER(C1005,C1006,L1002)→For filtering thefrequency band 1805 and 1880 MHz.
-PCS SAWFILTER(F1003)→For filtering thefrequency band between 1930 and 1990 MHz
4.TC-VCXO (OSC801)
To generatethe13MHzreference clockto drivethelogic and RF.
Afteradditionalprocess,thereference clockappliestotheU900 RxIQdemodulatorand TxIQmodulator.
Theoscillator forRXIQdemodulatorand Txmodulatorare controlled by serialdatatoselectchanneland usefast lock
modeforGPRShigh class operation.
5.Si4200 (U901)
Thischipintegratesthree differential-inputLNAs.
TheGSMinputsupportstheE-GSM,DCSinputsupportstheDCS1800,PCSinputsupportsthePCS1900.TheLNA
inputsarematchedtothe200 ohmdifferentialoutputSAWfiltersthrough eternalLCmatching network.
Image-rejectmixerdownconvertstheRFsignal toa100 KHzintermediatefrequency(IF)withtheRFLOfromSI4133T
frequencysynthesizer.TheRFLOfrequencyisbetween 1737.8~1989.9MHz.
TheMixeroutput isamplifiedwithananalog programmablegainamplifier(PGA),whichiscontrolled by AGAIN.
ThequadratureIFsignal isdigitizedwith high resolution A/Dconverts(ADC).
6.Si4201 (U900)
TheSI4201 down-convertstheADCoutput to baseband withadigital100 KHzquadratureLOsignal.Digitaldecimation
and IIRfiltersperformchannelselection toremoveblocking and reference interface signals.
Afterchannelselection,thedigitaloutput is scaledwithadigitalPGA,whichiscontrolledwiththeDGAIN.DACsdrive
adifferentialanalog signalontotheRXIP,RXIN,RXQP,RXQN pinstointerface tostandardanalog-inputbaseband IC.

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2)TXPART
Baseband IQsignalfedinto offsetPLL,thisfunction isincludedinsideofU902 chip.
SI4200 chip generatesmodulatorsignalwhich powerlevel isabout1.5dBmand fedintoPowerAmplifier(U1008).
ThePAoutputpowerand power ramping arewell controlled by Auto
PowerControlcircuit.WeuseoffsetPLL below
Modulation Spectrum
200kHzoffset
30 kHzbandwidth
GSM-35dBc
DCS-35dBc
PCS-35dBc
400kHzoffset
30 kHzbandwidth
GSM-66dBc
DCS-65dBc
PCS-66dBc
600kHz~1.8MHzoffset
30 kHzbandwidth
GSM-75dBc
DCS-68dBc
PCS-75dBc
2. Baseband CircuitdescriptionofSGH-V200
1.PSC2006
1.1.PowerManagement
Sevenlow-dropoutregulatorsdesignedspecificallyforGSMapplicationspowertheterminaland helpensureoptimal
systemperformance and long batterylife.Aprogrammableboostconverterprovides supportfor1.8V,3.0V,and 5.0V
SIMs,while a self-resetting,electronicallyfusedswitchsuppliespowertoexternalaccessories.Ancillarysupportfunctions,
suchasanLEDdriverand twocall-alertdrivers,aidinreducing both boardarea and systemcomplexity.
Athree-wireserial interface unit(SIU)providesaccess tocontroland configuration registers.Thisinterface givesa
microprocessor full controlofthePSC2006 and enables systemdesignerstomaximize bothstandby and talktimes.
Supervisoryfunctions.including aresetgenerator,aninputvoltagemonitor,and athermalmonitor,supportreliablesystem
design.Thesefunctionsworktogethertoensurepropersystembehaviorduring start-up orinthe eventofafault
condition(lowmicroprocessorvoltage,insufficientbatteryenergy,orexcessivedietemperature).
1.2.BatteryChargeManagement
Abatterychargemanagementblock providesfast,efficientcharging ofasingle-cell Li-ion battery.Usedinconjunction
witha current-limited voltagesource and anexternalPMOSpass transistor,thisblocksafelyconditionsnear-deadcells
and providestheoption ofhaving fast-charge and top-off controlledinternally orby thesystem'smicroprocessor.
1.3.BacklightLED Driver
ThebacklightLEDdriverisalow-side,programmable currentsource designedtocontrol thebrightness ofthekeyboard
and LCDillumination.Thedriverisenabled by EN_LED,and itscurrentsetting isdetermined by LED[0:2].Provided
EN_LEDis‘1’,thedrivercan beprogrammedtosink from12.5mAto 100mAin 12.5mAsteps.LED_DRVis
capableofsinking 100mAataworst-casemaximumoutputvoltageof0.6V.Forefficientuse,theLEDsisconnected
betweenthebatteryand theLED_DRVoutput.

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1.4.VibratorMotorDirver
Thevibratormotordriverisalow-side,programmablevoltagesource designedto driveasmall dcmotorthatsilently
alertstheuserofanincoming call.Thedriverisenabled by EN_VIB,and itsvoltagesetting isdetermined by VIB[0:2].
ProvidedEN_VIBisalogic1,thedrivercan beprogrammedtomaintainamotorvoltageof1.1Vto 2.5Vin 20mV
stepsand whilesinking up to 100mA.Forefficientuse,thevibratormotorshould be connected betweenthemain battery
and theVIB_DRVoutput.
2.Connector
2-1.LCDConnector
LCDisconsisted ofmainLCD(color65KSTNLCD)and small LCD(4-grayLCD).ChipselectsignalsofEMIpart in
thetrident,CLCD_EN_FOand GLCD_EN_FO,canenableEachLCD.LED_EN_FOsignalenableswhiteLEDofmain
LCDand EL_EN_FOsignalenablesEL ofsmall LCD.ThesetwosignalsarefromIOpartoftheDSP inthetrident.
RSTsignalfrom2006 initiatestheinitialprocess oftheLCD.
16-bit datalines(D(0)_FO~D(15)_FO)transfersdata and commandstoLCDthrough emi_filter.Data and commandsuse
A(2)_FOsignal.If this signal ishigh,InputstoLCDare commands.If it islow,InputstoLCDaredata.Thesignal
whichinformstheinputoroutputstatetoLCD,isrequired.But this systemisnotnecessarythis signal.So
CP_WEN_FOsignal isusedtowritedataorcommandstoLCD.PowersignalsforLCDareV_batand V_ccd.
SPK1Pand SPK1NfromCSP1093 areusedforaudiospeaker.And VIB_EN_FOfromenablesthemotor.
2-2.JTAG Connector
TridenthastwoJTAG portswhichareforARMcore and DSP core(DSP16000).Sothis systemhastwo portconnector
fortheseports.Pins’initialsforARMcore are‘CP_’and pins’initialsforDSP core are‘DSP_’.CP_TDIand
DSP_TDIsignalareusedforinputofdata.CP_TDO and DSP_TDO signalsareusedfortheoutputofthedata.CP_TCK
and DSP_TCKsignalsareusedforclock becauseJTAG communication isasynchronous.CP_TMSand DSP_TMS
signalsaretestmodesignals.Thedifference betweentheseistheRESET_INTsignalwhichisforARMcoreRESET.
2-3.IRDA
This systemusesIRDA module,HSDL_3201,HP’s.Thishas signals,IRDA_EN(enablesignal),IRDA_RX(inputdata)
and IRDA_TX(outputdata).Thesesignalsare connectedtoPPIoftrident.Itusestwo powersignals.V_ccdisusedfor
circuit and V_bat isusedforLED.
2-4.Keypadconnector
Thisisconsisted ofkeyinterface pinsamong PPIinthetrident,KEY_ROW[0~4]and KEY_COL[0~4].Thesesignals
composethematrix.Result ofmatrixinformsthekeystatusto keyinterface inthetrident.Somepinsare connectedto
varistor forESDprotection.And poweron/off keyis seperatedfromthematrix.So poweron/off signal isconnectedwith
PSC2006 toenablePSC2006.SVC_GREEN,SVC_REDand SVC_BLUEarefromOCTL ofCSP1093.Thesesignals
decidethe colorofLED,service indicator.Eighteen keyLEDusetheV_batsupply voltage.These are connectedto
BACKLIGHTsignal inthePSC2006.This signalenablesLEDswithcurrentcontrol.FLIP_SNSinformsthestatusof
folder (open orclosed)tothetrident.Thisusesthehall effectIC,A3210ELH.AmagnetundermainLCDenables
A3210ELH whichison thekeyFPCB.

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2-5.EMIFilter
This systemusestheEMI filter,KNA32200-W3to protectnoisefromLCDpart.Some controlsignalsare connectedto
LCD withoutEMI filter.
3.IFconnetor
It is24-pinconnector,and uses18-pinatpresent.Theyaredesignedto useSDS,DEBUG,DLC-DETECT,JIG_ON,
VEXT,VTEST,VF,CF,VBATand GND.Theyconnectedto powersupplyIC,microprocessorand signalprocessor IC.
4.Audio
AOUTAPfromCSP1093 isconnectedtothemainspeaker.AOUTAN isconnectedtothespeakervia audio-amp.
AOUTBNand AOUTBPare connectedtothe ear-micspeakervia ear-jack.MICINand MICOUTare connectedtothe
mainMIC.And AUXINand AUXOUTare connectedtotheEar-mic.
YMU762MA3isaLSI forportabletelephonethat iscapableofplaying high qualitymusicby utilizing FMsynthesizer
and ADPCMdecorderthatareincludedinthisdevice.
Asasynthesis,YMU762MA3isequipped 16 voiceswith differenttones.Since thedevice iscapableofsimultaneously
generating up tosynchronouswiththeplay oftheFMsynthesizer,various sampled voicescan beusedas sound effects.
Since theplay dataofYMU762MA3areinterpretedatanytimethrough FIFO,thelength ofthedata(playing period)is
not limited,sothedevice canflexiblysupportapplication suchasincoming call melody musicdistribution service.The
hardwaresequencerbuilt inthisdevice allowsplaying ofthe complexmusicwithoutgiving excessiveloadtotheCPUof
theportabletelephones.Moreover,theregistersoftheFMsynthesizercan beoperated directlyfor real timesound
generation,allowing,forexample,utilization ofvarious sound effectswhen using thegamesoftwareinstalledinthe
portabletelephone.
YMU759 includesaspeakeramplifierwith high rippleremovalratewhosemaximumoutput is550mW(SPVDD=3.6V).
Thedevice isalsoequippedwithconventionalfunction including avibartorand a circuit forcontrolling LEDs
synchornouswithmusic.
Fortheheadphone,it isprovidedwithastereophonicoutput terminal.
Forthepurposeofenabling YMU762MA3to demonstarteitsfull capablities,Yamahapurposeto use"SMAF:Synthetic
musicMobileApplication Format"asadatadistribution format that iscompatiblewihtmultimedia.Since theSMAFtakes
astructurethatsetsimportance on thesynchronization betweensound and images,variouscontentscan bewrittenintoit
including incoming call melody withwordsthatcan beusedfortraning karaoke,and commercialchannel thatcombines
texts,imagesand sounds,and others.ThehardwaresequencerofYMU762MA3 directlyinterpretsand playsblocks
relevant tosysthesis(playing music and reproducing ADPCMwithFMsynthesizer) thatareincludedin datadistributedin
SMAF.

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5.Memory
This systemusesSHARP’smemory,LRS1395.It isconsisted of128Mbitsflashmemoryand16MbitsSRAM.Ithas
16 bit dataline,D[0~15]whichisconnectedtotrident,LCDorCSP1093.Ithas22 bit address lines,A[1~22].Theyare
connectedtoo.CP_CSROMENand CO_CSROM2ENsignals,chipselectsignalsinthetridentenabletwomemories.They
use3 volt supply voltage,V_ccdand 1.8 volt supply voltage,Vcc_1.8ainthePSC2006.During wrting process,CP_WEN
islowand it enableswriting process toflashmemoryand SRAM.During reading process,CP_OENislowand it output
information whichislocatedat the address fromthetrident intheflashmemory orSRAMto datalines.Eachchipselect
signalsinthetridentselectmemoryamong 2 flashmemoryand2SRAM.Reading orwriting procedureisprocessedafter
CP_WENorCP_OENisenabled.MemoriesuseFLASH_RESET,whichisbufferedsignalofRESET fromPSC2006,for
ESDprotection.A[0]signalenableslowerbyteofSRAMand UPPER_BYTE signalenableshigherbyteofSRAM.
6.Trident
Trident isconsisted ofARMcore and DSP core.Ithas20K*16bitsRAM144K*16bitsROMintheDSP.Ithas
4K*32bitsROMand 2K*32bitsRAMintheARMcore.DSP isconsisted oftimer,onebit input/outputunit(BIO),JTAG,
EMIand HDS(HardwareDevelopmentSystem).ARMcoreisconsisted ofEMI,PIC(ProgrammableInterruptController),
reset/power/clock unit,DMAcontroller,TIC(TestInterface Controller),peripheralbridge,PPI,SSI(SynchronousSerial
Interface),ACC(Asynchronouscommunicationscontrollers),timer,ADC,RTC(Real-TimeClock)and keyboardinterface.
DSP_AB[0~8],address linesofDSP core and DSP_DB[0~15],datalinesofDSP core are connectedtoCSP1093.
A[0~20],address linesofARMcore and D[0~15],datalinesofARMcore are connectedtomemory,LCDand YMU759.
ICP(InterprocessorCommunication Port)controlsthe communication betweenARMcore and DSP core.
CSROMEN,CSRAMENand CS1NtoCS4NintheARMcore are connectedtoeachmemory.WENand OENcontrol
theprocess ofmemory.ExternalIRQ(InterruptReQuest)signalsfromeach units,suchas,YMU,Ear-jack,Ear-mic and
CSP1093,needthe compatibleprocess.
SomePPIpinshasmany specialfunctions.CP_KB[0~9] receivethestatusfromkeyFPCB and areusedforthe
communicatiosusing IRDA(IRDA_RX/TX/EN)and datalink cable(DEBUG_DTR/RTS/TXD/RXD/CTS/DSR).And
UP_CS/SCLK/SDI,controlsignalsforPSC2006 areoutputtedthrough PPIpins.Ithas signalportforcharging(CHG_DET,
CHG_STAT0),SIM_RESET and FLIP_SNSwithwhichweknowsopen.closedstatusof folder.Ithas JTAG control
pins(TDI/TDO/TCK) forARMcore and DSP core.Itrecieves13MHz clockinCKIpinfromexternalTCXO and receives
32.768KHz clockfromX1RTC.ADC(Analog toDigitalConvertor) partreceivesthestatusoftemperature,batterytype
and battery voltage.And controlsignals(DSP_INT,DSP_IOand DSP_RWN) forDSP core areused.ItenablesmainLCD
and small LCD withDSP IPpins.

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7.CSP1093
CSP1093 integratesthetiming and controlfunctionsforGSM2+mobile application withtheADCand DACfunctions.
TheCSP1093 interfacestothetrident,viaa16-bit parallel interface.Itservesastheinterface thatconnectsaDSP tothe
RFcircuitryinaGSM2+mobiletelephone.DSP canload 148 bitsofburstdataintoCSP1093’sinternalregister,and
programCSP1093’sevent timing and controlregisterwiththe exact timetosend theburst.Whenthetiming portion of
the event timing and controlregistermatchestheinternalquarter-bit counterand internalframe counter,the148 bitsin
theinternalregisterareGMSKmodulatedaccording toGSM2+standards.Theresulting phaseinformation istranslated
intoIand Qdifferentialoutputvoltagesthatcan be connected directlytoanRFmodulatorat theTXOPand TXON pins.
TheDSP isnotifiedwhenthetransmission iscompleted.For receiving baseband data,aDSP can programCSP1093’s
event timing and controlregisterwiththe exact timetostartreceiving Iand Qsamplesthrough TXIPand TXINpins.
Whenthat timeisreached,the controlportion ofthe event timing and controlregisterwill start thebaseband receive
section converting Iand Qsamplepairs.Thesamplesarestoredinadouble-bufferedregisteruntil theregistercontains
32 samplepairs.CSP1093 then notifiestheDSP which hasampletimetoreadtheinformation outbeforethenext32
samplepairsarestored.Thevoice band ADCconverterissuesaninterrupt totheDSP wheneverit finishesconverting a
16-bit PCMword.TheDSP thenreadsthenewinputsample and simultaneouslyloadsthevoice band outputDAC
converterwithanewPCMoutputword.Thevoice band outputcan be connected directlytoaspeakerviaAOUTAN and
AOUTAPpinsand be connectedtoaEar-micspeakerviaAOUTBNand AOUTBPpins.
8.X-TAL(13MHz)
This systemusesthe13MHzTCXO,TCO-9141B,Toyocom.AFCcontrolsignalformCSP1093 controlsfrequencyfrom
13MHzx-tal.Itgeneratesthe clockfrequency.Thisclockisinvertedthrough NOTgate,TC7S04FUand isconnectedto
CSP1093.13MHz clockforYMU759 usesanot-invertedclock.ClockforRFpartsuses sametype.
9.CameraDSP(LC99704B)
-Thischipset isMCPproduct thatcombinestheCCD Driverwith on-chip boostercircuit
and analogue/digitalmixed-signalprocessing IC.
Theboostercircuit generatethesupply voltagesrequiredforCCDdrive.
Camerascan use eithera +2.8Vor+3.0Vor+3.3Vonly powersupplysystem.
The analogue/digitalmixed-signalprocessing ICthat integratesthesignal-processing
functionsrequiredinaCCDdigitalcamera and arichsetofaddtionalfunctionson asingle
chip.Although theCDS(correlated dualsampling)and AGCcircuit requiredforanalog
processing and the clampcircuit requiredforA/Dconversion arenormally povided on
circuits,aswell asanA/Dconverter,on asingle chip.
Additionally,it alsoincludesthepulsegeneratorcircuitsrequiredforCCDdrive,the
logic circuitsforthe electronicsiris,and thedigitalsignal-processing circuitsrequiredto
createthedigitalYUV signaloutput.Thisdevice cantake advantageofthefeaturesof
thesedigitalsignal-processing functionsto provide autowhitebalance,automaticdropout
detection and correction,mirrorimageoutput,and asinglelineofmemoryto provide
flexibilityinthe external interface.
Thisdevice assumesaninternalmasterclockfrequencyintherange16 ~27 MHz.
Normally,eitheranexternalclockwiththatfrequencyisprovided,orelseamasterclock
oscillatorcircuit isconstructed using thebuilt-in oscillatorinvertercircuit.
And thisisalso possibletocontrol theCCDdriveinternaland enternal.

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10.CameraASIC(SSH275)
ThisASICinterfacesbetweenCCDand LCD,and thischipcompressesand expands
inputpicturesfromCCD withJPEGformat.
-CCDI/F:YUV422(16 bit) format,CIFfixedsize.
Systemclock providing CCDmodule(13.5MHz)and Dotclock providing
CCDmodule(13.5MHz).
-CPUI/F:AccessibletoJPEGcontroller,a controlregisterincluding,JPEGcodebuffer,
and athumbnail picturebuffer.
Directaccess toLCDcontrollerby switching buses.
-LCDI/F:SupportLCDcontroller.
Accessibleby switching2mastersoftheHostCPUorASICpicture
processing .
OutputformatfromASICisRGB565.
- I2CI/F:I2Cmaster forCCDmodule controlequipped.
CCDmoduleisaccessiblefromCPU wiithoutpaying attention toI2C,asinthe
caseofanormalregisterwrite/read.
-JPEGcodec :YUV422 picturedataiscompressedtoJPEGcode,and JPEGcodedatais
expandedtoYUV422 picturedata.
-Clocksystem:AsforASIC,27 MHz clockinputfromoutsideisthemainclock.
2-divided 13.5MHzisusedasCCDmodulemainclock output,dotclock
output toCCDmodule,and ASICinnerclock

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5. SGH-V206 FlowChart of Troubleshooting
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1. Power On
Currentconsumption
>=100mA
'PowerOn'doesnotwork
Voltage>= 3.3V
Downloadagain
ChargetheBattery
pin#15 >= 2.8VCheckU100 andC113
pin#46 andpin#39 =
2.8V
CheckU100 andC112
Checktheclocksignal
atpin4ofOSC801
Freq=13MHz,
Vrms≥300mVand
Vpp ㆃ900mVpp
Checktheclockgenerationcircuit
(related toOSC801,U901 pin19)
END
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
pin#13 =1.8VNo
Yes
ChecktheVbat.Voltage
CheckthepinofU100
Checktheinitialoperation
Checkthecurrentconsumption

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SGH-V206 FlowChartofTroubleshooting
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2. Initial
Thepin#13 ofU100 =1.8V
and
thepin#15 ofU100 ㆃ2.825V?
InitializationFailure
ChecktheU100
(Ifithas someproblem,ithastobe
replaced.)
END
No
Yes
Isthepin#28 ofU100
"Low-> High"?
Yes
ChecktheU601
Thereis32.768kHzwave
formsat theC614 andC616
ChecktheLCDPart
Yes
No
No
Yes
Yes
Yes
TheVoltageis"High"at
theC114,C116,C117
ChecktheAudioPart
No
ChecktheU100
(Ifithas someproblem,ithastobe
replaced.)
ChecktheU700
Thepin#22 ofU100 is
"High"
ChecktheU100
LCDdisplayisO.KNo
No
Yes
Yes
SoundisO.KNo

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SGH-V206 FlowChartofTroubleshooting
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3. SimPart
IsthereanySignals
pin#64,#65,#66 ofU100?
"InsertSIM"isdisplayed ontheLCD
ChecktheU601
ChecktheSIMCard
END
No
Yes
Yes
Yes
No
ChecktheU100
IsthereanySignals
pin#1,#2,#3,#4ofCN100?

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4. ChargingPart
Thepin#17,#18 of
CN300 isTA_VEXTㆃ
5V?
Abnormalcharging operation
Thepin#3ofU101 is
"low"?
ReplaceTAorCheckCN300
ChecktheU101
ChecktheQ101
END
No
Yes
Yes
Yes
No
No
Thepin#3ofQ101 is"low"?
Thepin#5ofU101 is
3.2~4.2V"?ChecktheU101
No
Yes
No
SolderagainorchangeR111
Yes
TheICHRG=1V(during
charging)andㆃ180mV(full
charging)?

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CN100

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5. MicrophonePart
Istheassembled statusof
microphoneO.K?
Microphone doesnotwork
C409 ㆃ2.5V
Reassemblethemicrophone
Solderthemicrophoneagainor
ReplaceC400,R409,C409,R407,R402,R405
END
No
Yes
Yes
Yes
Yes
No
Ismicrophoneok?
No
CheckU700
Checkthereferencevoltageonmicpath