Samsung SGH-C100 User manual

SGH-C100
SERVICE
Manual
GSMTELEPHONECONTENTS
1.Specification
2.ExplodedViewsand PartsList
3.ElectricalPartsList
4.FlowChartofTroubleshooting
5.BlockDiagram
6.PCB Diagrams
GSMTELEPHONE

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1.SGH-C100 Specification
1-1
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1. GSMGeneralSpecification
GSM900
Phase1EGSM900 Phase2DCS1800 Phase1
Freq.Band[MHz]
Uplink/Downlink 890~915 935~960 880~915 925~960 1710~1785 1805~1880
ARFCNrange1~124 0~124 &975~1023 512~885
Tx/Rxspacing 45MHz45MHz95MHz
Mod.Bit rate/
Bit Period 270.833kbps 3.692us270.833kbps 3.692us270.833kbps 3.692us
TimeSlotPeriod/Frame
Period 576.9us 4.615ms576.9us 4.615ms576.9us 4.615ms
Modulation 0.3GMSK0.3GMSK0.3GMSK
MS Power33dBm~13dBm33dBm~5dBm30dBm~0dBm
PowerClass 5pcl~15pcl5pcl~19pcl0pcl~15pcl
Sensitivity-102dBm-102dBm-100dBm
TDMAMux 8 8 8
Cell Radius35Km35Km2Km

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SGH-C100 Specification
1-2
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2. GSMTXpower class
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 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

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2.SGH-C100 ExplodedViewand its Partslist
2-1
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1.CellularphoneExplodedView
1
4
9
2
3
6
10
5
8
11
1-1
12
16
13
15
14
7

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SGH-C100 Explodedviewand its Partlist
2-2
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2.CellularphonePartslist
NODescriptionSEC.CODE REMARK
1FRONTCOVER GH75-02873A
1-1WINDOWLCDGH72-07226A
2MOTORGH31-00055A
3SPEAKER 3001-001408
4KEYPADGH72-02933A
5MAINPBAGH92-01375A
6LCDGH07-00315A
7SCREW6001-001645
8METALDOMEGH59-00695A
9MICHOLDER GH73-01867A
10 MICGH30-00020A
11 CONNECTORCOVER GH73-01868A
12 REARCOVER GH75-02874A
13 VOLUMEKEYGH75-02934A
14 SCREW6001-001654
15 RFCOVER GH73-01869A
16 BATTERYGH4300184A

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SGH-C100 Explodedviewand its Partlist
2-3
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3.TestJig(GH80-01809A)
3-1.RFTestCable
(GH39-00182A)3-2.TestCable (GH39-00206A)3-3.SerialCable
3-4.PowerSupplyCable3-5.DATACABLE
(GH39-00203A)3-6.TA (GH44-00184A)

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3.SGH-C100 MAINElectricalPartsList
3-1
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SEC Code Design
LOC
GH41-00413A
GH07-00315A
GH30-00020A
GH31-00055A
2203-005482 C101
2203-000386 C102
2203-000812 C103
2203-005482 C105
2203-005065 C106
2203-005482 C107
2203-000812 C108
2203-000311 C109
2203-000359 C110
2203-005482 C111
2203-001124 C112
2203-002443 C113
2203-005446 C114
2203-006195 C115
2203-001383 C116
2203-005571 C117
2203-000812 C118
2203-000386 C119
2203-000386 C120
2203-001383 C121
2203-000233 C122
2203-005482 C123
2203-000233 C124
2203-005482 C125
2203-000679 C126
2203-000679 C127
2203-005482 C128
2203-006306 C129
2203-000330 C130
2203-000940 C131
SEC Code Design
LOC
2203-000940 C132
2203-000812 C133
2203-000330 C134
2203-005482 C135
2203-000812 C138
2203-000812 C139
2203-002677 C140
2203-001385 C141
2203-000438 C144
2203-005061 C201
2203-005482 C202
2203-000812 C203
2203-000812 C204
2203-005061 C205
2203-001383 C207
2203-000812 C209
2203-000278 C210
2203-000812 C212
2203-000278 C213
2404-001151 C214
2203-000654 C215
2203-001239 C216
2203-005061 C217
2203-005065 C218
2203-005061 C219
2203-005061 C220
2203-005061 C221
2203-006090 C223
2203-005482 C224
2203-005483 C225
2203-005061 C226
2503-001042 C227
2503-001042 C228
2503-001042 C231
SEC Code Design
LOC
2203-005065 C232
2203-005065 C233
2203-005664 C234
2203-006090 C236
2203-005061 C237
2203-005065 C238
2203-000278 C240
2203-005061 C301
2203-005061 C303
2203-000359 C304
2203-005061 C305
2203-005482 C306
2203-005061 C307
2203-005061 C308
2203-000679 C310
2203-000679 C311
2203-005061 C312
2203-005065 C316
2203-006053 C400
2203-001412 C401
2203-001412 C402
2203-006183 C403
2203-000812 C404
2203-000812 C405
2203-000812 C406
2203-000812 C407
2203-000812 C408
2203-006053 C409
2203-006053 C410
2203-006053 C411
2203-000812 C412
2203-000812 C413
2203-000812 C414
2203-000812 C415

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SGH-C100 ElectricalPartsList
3-2
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SEC Code Design
LOC
2203-006105 C416
2203-000438 C417
2203-005061 C418
2203-000812 C419
2203-000812 C420
2203-000812 C421
2203-000812 C422
2203-000812 C423
2203-000812 C424
2203-000812 C425
2203-000812 C426
2203-000812 C427
2203-000812 C428
2203-000254 C430
2404-001306 C431
2203-001598 C432
2203-006183 C433
2203-000278 C500
2203-005061 C501
2203-000233 C502
2203-000233 C503
2203-001405 C504
2203-000654 C505
2203-001405 C506
2203-005061 C507
2203-005061 C508
2203-000438 C509
2203-005061 C510
2203-000812 C512
2203-005148 C514
2203-006090 C516
2203-000812 C517
2203-005509 C520
2203-000233 C521
SEC Code Design
LOC
2203-000233 C522
2404-001151 C523
2203-006208 C524
2203-006208 C525
3705-001287 CN100
3710-001673 CN402
3709-001187 CN500
3722-002026 CN502
0404-001189 D101
0401-001033 D301
0407-000115 D500
2703-002268 L100
2703-002313 L101
2703-002313 L102
2703-002497 L104
2703-002372 L105
2703-002269 L106
2703-001229 L200
3301-001208 L201
2703-002339 L400
2703-001881 L501
0604-001146 LED300
0601-001602 LED400
0601-001602 LED401
0601-001602 LED405
0601-001602 LED406
0601-001602 LED407
0601-001602 LED408
0601-001602 LED409
0601-001602 LED410
0601-001602 LED411
0601-001602 LED412
0601-001602 LED413
0601-001602 LED414
SEC Code Design
LOC
0601-001654 LED500
2801-004191 OSC200
2801-003856 OSC300
0505-001325 Q400
0504-001012 Q500
0504-001012 Q501
2007-007142 R100
2007-007142 R102
2007-000172 R103
2007-000172 R104
2007-001156 R105
2007-008117 R106
2007-008275 R107
2007-000171 R108
2007-007142 R109
2007-000172 R110
2007-007132 R111
2007-007318 R112
2007-007142 R113
2007-000982 R114
2007-000137 R115
2007-000172 R116
2007-000172 R117
2007-000171 R118
2007-000172 R120
2007-007319 R121
2007-001298 R122
2007-007564 R123
2007-001298 R124
2007-007008 R125
2007-000172 R126
2007-001156 R127
2007-007134 R128
2007-000172 R129

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SGH-C100 ElectricalPartsList
3-3
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SEC Code Design
LOC
2007-001298 R130
2007-000070 R131
2007-008275 R200
2007-000775 R201
2007-007092 R202
2007-000242 R203
2007-007766 R204
2007-007092 R205
2007-001335 R206
2007-000141 R207
2007-000171 R208
2007-000171 R209
2007-000137 R211
2007-000162 R212
2007-000171 R233
2007-001325 R300
2007-000170 R304
2007-000171 R305
2007-000173 R306
2007-000138 R310
2007-000138 R400
2011-001344 R401
2007-001295 R402
2007-007200 R403
2007-000138 R405
2007-000138 R406
2007-001308 R408
2007-001308 R409
2007-001308 R413
2007-001308 R414
2007-001308 R415
2007-001308 R416
2007-001308 R417
2007-001308 R418
SEC Code Design
LOC
2007-001308 R419
2007-001308 R420
2007-001308 R421
2007-001308 R422
2007-007200 R430
2007-000162 R431
2007-000172 R500
2007-000172 R501
2007-000159 R502
2007-000156 R503
2007-000156 R504
2007-000932 R506
2007-007096 R507
2007-001313 R508
2007-001325 R509
2007-001319 R512
2007-000138 R513
2007-000566 R514
2007-000138 R515
2007-000171 R516
2007-000169 R517
2007-008117 R518
2007-000758 R519
2007-000148 R520
2007-000162 R521
1205-002218 U100
1201-002009 U101
1201-002017 U102
4709-001144 U103
2909-001200 U104
1204-002158 U200
1209-001497 U202
0504-001162 U210
1205-002365 U300
SEC Code Design
LOC
1109-001274 U301
1203-002689 U308
1203-002860 U401
1203-002633 U402
1204-001960 U500
0504-001162 U501
1001-001183 U502
0504-001162 U503
2203-000278 U504
4302-001130 V200
1405-001093 V400
1405-001093 V401
1405-001082 V402
1405-001082 V403
1405-001082 V404
1405-001082 V406
1405-001082 V407
1405-001082 V409
1405-001082 V410
1405-001082 V411
1405-001082 V500
1405-001082 V501
3404-001152 VOL_DN
3404-001152 VOL_UP
0406-001167 ZD400
0406-001167 ZD401
0406-001169 ZD402
0404-001172 ZD403
0403-001446 ZD412
0406-001169 ZD501
GH42-00280A
3001-001408

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4.SGH-C100 FlowChartofTroubleshooting
4-1
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1.PowerON
Checkthecurrent
consumptionmorethan
100mA
'POWER ON'doesnotwork
ChecktheVoltageofthe
Batterymorethan3.3V
Downloadagain
ChargetheBattery
CheckthecapacitorC236
close byU200(MSD)is
morethan3.2VChecktothepathfromCN402 to
capacitorC236 close byU200(MSD)
2.7V≤C234 of
U200(MSD)
=2.8VChecktheMSD(U200)
ChecktheTP222 of
U200(MSD)ishigh≒2.8VChecktheCX805-31P(U300)
Checktheinitialoperation
END
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No

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SGH-C100 FlowChartofTroubleshooting
4-2
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2.Initial
InitialFailure
No
No
No
ChecktheR209 of
U200 is'High'
Checktheclockgenerationcircuit
(related toU200 andOSC200)
Checktheclock
signal'swaveat
R201(19.5MHz)
ChecktheU200(MSD)
Yes
ChecktheTP234
3.9MHzwave&TP220
is"High"ChecktheU200(MSD)
Checktheconnectionsandinitialization
usingFactoryTestProgram
Yes
END
Yes

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SGH-C100 FlowChartofTroubleshooting
4-3
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3.Charging
*TestafterconnectingwithBattery
:All 4terminalsinbatteryshouldbeconnected tothephone byusingjump-wires.
Checkthepin17
ofCN402 isaround
5V
Abnormalchargingpart
Checkthepin6of
U210 is"LOW"
ChecktheTA
ChecktheU210
Checkthepin3of
U210 is"LOW"
END
No
Yes
Yes
Yes
No
NoCheckthepin
3ofU503 is
short to ground
Yes
Checktheconnectionsof
4terminalsinbattery

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SGH-C100 FlowChartofTroubleshooting
4-4
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SGH-C100 FlowChartofTroubleshooting
4-5
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4.Sim
*TestwithSim
Checkthethevoltage
atpin1&5of
CN500 is2.8V?
Phonecan'taccess SIMcard
ChecktheCN500's
ConnectiontoSIM
card
Checkthecircuitrelated to
CN500
ResolderCN500
CheckthecircuitaroundU301
(MEMORY)and datastored init
END
No
Yes
Yes
Yes
Yes
No

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SGH-C100 FlowChartofTroubleshooting
4-6
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SGH-C100 FlowChartofTroubleshooting
4-7
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5.MicrophonePart
*Call withSimbeforetesting.
checktheconnection
fromMIC500
MicroPhone doesnotwork
ResolderMIC500
ChecktheAudioloopbackby
boardtestprogram.
END
No
Yes
Yes
checkthevoltageof
C214 ≥2.0V
Yes
CheckthepatharoundMICbias
circuit
No

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SGH-C100 FlowChartofTroubleshooting
4-8
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SGH-C100 FlowChartofTroubleshooting
4-9
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6.Receiver
*Call beforetesting.
Put'sinewave'from
8960,andCheckthe
pin5,7ofU502 is sine
wave
Receiverdoesnotwork
Checkthepin3,9of
U502 is sinewave
CheckU200 andspeakrelated
circuit
CheckU502 andsoldering
END
No
Yes
Yes
No
Checkthewaveof
C412 &C421
IsSpeakerworking?
CheckthepathfromU502 to
SPK400
ReplacetheSpeaker
No
Yes
Yes
No

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SGH-C100 FlowChartofTroubleshooting
4-10
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7.Speaker
*Playon16-polymelodybeforetesting.
Checkthepin1of
U500'sclock≒3.9MHz
Receiverdoesnotwork
Checkthepin17 &18
ofU500 isaround
audiosignal≒2V
CheckU200
CheckU500
IsSpeakerworking?
END
No
Yes
Yes
No
ReplacetheSpeaker
Yes
No
Checkthewaveofpin3
&9ofU502 CheckU502 andsoldering
No
Yes
Checkthewaveof
C412 &C421 CheckthepathfromU502 to
SPK400
No
Yes

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SGH-C100 FlowChartofTroubleshooting
4-11
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8.KeyDataInput
'#pad'(See thepicture
below)is'high'(≒
2.8V)
ChecktheInitialOperation
END
Yes
Whenoneofthekey
ispushed,#padis
'low'
Yes
CheckU300
No
ReplacetheDomSheetOR
CheckiftheV402,403,404 are
opened
No
Yes
ChecktheKeypad&
DomSheetReplaceorAdjust
theKeypad&DomSheet