Samsung GT-P3100 Building instructions

GSM TELEPHONE
GT-P3100
1. Safety Precautions
2. Specification
3. Product Function
4. Exploded View and Parts list
5. MAIN Electrical Parts List
6. Level 1Repair
7. Level 2Repair
8. Level 3Repair
9. Reference data
Notice: All functionality, features, specifications, and
other product information provided in this document,
including but not limited to, benefits, design, pricing,
components, performance, availability, and capabiliti
-es of the product are subject to change without
notice. Samsung reserves the right to alter this doc
-ument or the product described herein at anytime,
without obligation to provide notification of such
changes.
GSM TELEPHONE CONTENTS
efrcom

This Service Manual is aproperty of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
Samsung Electronics Co.,Ltd.
2012. 03. Rev.1.0
ⓒ

SAMSUNG Proprietary-Contents may change without notice
7. Level 2Repair
7-1
This Document can not be used without Samsung's authorization
Be careful not to scratch cover.
Follow the numbered sequence when you disjoint
Be careful not to scratch cover.
Follow the numbered sequence when you disjoint
Be careful not to scratch cover.
Follow the numbered sequence when you disjoint
Be careful not to scratch cover.
Follow the numbered sequence when you disjoint
7-1. Disassembly and assembly Instructions
7-1-1. Disassembly
Disassemble the rear cover with the front
cover by using the hook
1Put the disassemble jig as shown in the
picture below. And disassemble hooks in
regular sequence.
2
3Disassemble the rest of the hooks. 4Put your hand has opened between the front
assy and the rear cover. First, disassemble
the hooks in the direction of IF connector. And
then disassemble all the remain hooks.
:Hook (24 Point)

SAMSUNG Proprietary-Contents may change without notice
7. Level 2Repair
7-2
This Document can not be used without Samsung's authorization
Be careful not to scratch cover Be careful not to damage the FPCBs
Be careful not to damage the wires
Be careful not to damage the FPCBs Be careful not to scratch cover
Separate IF Connector, TSP, LCD, 3M
Camera, VGA Camera, Volume Key,
Earjack FPCBs from the PBA
7Separate PBA from the Front.
8
5Carefully release the screws at 16 different
locations from the Front.
(L1.4*3.0, Torque 0.9 ~ 1.0 kgf.cm)
6Separate the Speaker, Battery from the PBA.

SAMSUNG Proprietary-Contents may change without notice
7. Level 2Repair
7-3
This Document can not be used without Samsung's authorization
Be careful not to damage the FPCBs
Separate the Intenna, 3M Camera, Earjack,
Volume FPCB, VGA Camera, Sensor FPCB
from the Front.
9

SAMSUNG Proprietary-Contents may change without notice
7. Level 2Repair
7-4
This Document can not be used without Samsung's authorization
Be careful not to damage the FPCBs Be careful not to damage the FPCBs
Be careful not to damage the FPCBs Be careful not to damage the FPCBs
7-1-2. assemble
Assemble the 3M Camera, Earjack, Volume
FPCB, VGA Camera, Sensor FPCB
1Assemble the Intenna
2
Assemble PBA and all Connectors
3Assemble the Speakers Battery
4

SAMSUNG Proprietary-Contents may change without notice
7. Level 2Repair
7-5
This Document can not be used without Samsung's authorization
Be careful not to damage the FPCBs Be careful not to damage the FPCBs, not to scratch
cover.
Screw at 16 point
(L1.4*3.0, Torque 0.9 ~ 1.0 kgf.cm)
Assemble the Rear.
6
5

8. Level 3Repair
8-1
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
8-1. Block Diagram

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-2
8-2. PCB Diagrams
8-2-1. Top
ANT102
ANT103
ANT202
BOTH100BOTH101
BOTH102
BOTH103
BOTH104
BOTH105
BOTH106
BOTH107
BOTH108
BOTHHOLE100
C102
C103
C104
C105
C106
C107
C108
C109
C110
C111
C114
C116
C117
C121
C122
C123
C124
C125
C126
C127
C128
C129
C130
C131
C132
C133
C134
C135
C136
C137
C138
C139
C140
C141
C142
C143
C144
C145
C146
C147
C148
C149
C150
C1513
5
1
C
2
5
1
C
C154
C155
C156
C157
C158
C159
C160
C162
C163
C165
C166
C167
C170
C171
C172
C173
C174
C175
C176
C177
C178
C179
C180
C181
C182
C201
C202
C205
C207
C211
C212
C215
C216
C217
C218
C219
C220
C221
C222
C223
C224
C225 C226
C227
C228
C229
C230
C231
C232
C233
C234
C235
C236
C237
C238
C239
C240
C241
C242
C243
C244
C245
C246
C247
C248
C300
C301
C302
C303
C304
C305
C306C307
C308
C309
C310
C311
C312C313
C314
C315
C316
C317
C318
C319
C320
C321
C322
C323
C324
C325
C326
C327
C328
C329
C330
C331
C332
C333
C334
C335C336
C337
C342
C343
C344
C345
C400
C401
C402
C403
C404
C405
C406
C407
C408
C409
C410
C411
C412
C413
C414
C415
C416
C417
C418
C419
C420
C421
C422
C423
C424
C425
C426
C427
C428
C429
C430
C431
C432
C433
C434
C435
C436
C437
C438
C439
C440
C441
C442
C443
C444
C463
C464
C507
C508
C512
C600
C601
C602
C603
C604
C605
C606
C607
C608
C609
C610
C611
C612
C613
C614
C615
C616
C617
C618
C619
C620
C621
C622
C623
C624
C625
C626
C627
C628
C629
C630
C631
C632
C633
C634
C635
C636
C637
C638
C639
C640
C641
C642
C643
C644
C645
C646
C647
C648
C649
C650
C651
C652
C653
C654
C655
C656
C657
C658
C659
C660
C661
C662
C663
C664
C665
C666
C667
C668
C669
C670
C671
C672
C673
C674
C675
C676
C677
C678
C679
C682
C683
C684
C685
C686
C687
C688
C689
C690
C691
C692
C693
C694
C695
C696
C697
C700
C701
C702
C703
C704
C705
C706
C707
C708
C709C710
C711
C712
C713
C714
C715
C716
C718
C719
C720
C721
C722
C723
C724
C730
C734
C735
C736
C737
C738
C743
C744
C746
C747
C748
C749
C753
C754
C755
C756
C800
C801
C802
C803
C804
C805
C815
C816
C825
C900
C901
C902
C903
C904
C909
C910
C911
C912
C913
C914
C915
C916
C917
C918
C919
C920
C921
C924
C925
C929
C930
C931
C932
C933
C934
C935
C936
C939
CMC800
CN100
CON700
D700
F100
F201
F800 F801F802
F900
GPS_EN
GPS_nRST
HDC400
HDC401
HDC600
HDC800
HDC801
HDC900 HDC901
HDC902
HDC903
HEA400
L101
L102
L103
L104
L105
L107
L108
L110311L211L
L114
L115
L116
L117
L118
L119
L120
L121
L122
L123
L124
L125
L126
L127
L128
L129
L130
L201
L203
L204
L205
L206
L207
L208
L209
L211
L212
L214
L300
L301
L302L303
L400
L401
L402
L403
L404
L405
L406
L407
L408
L409
L410
L600
L700
L701
L702
L703
L704
L901
L902
OSC100
OSC201
OSC300
OSC600
OSC700
PREQ700
PREQ701
R100
R103
R104
R105
R106
R107
R108
R114
R116
R117
R118
R119
R120
R121
R122
R123
R201
R203
R205
R206
R207
R208
R209
R210
R211
R212
R213
R300
R301
R302
R303
R304
R305
R306
R307
R309
R313
R314
R315
R316
R317
R318
R319
R320
R400
R403
R404
R405
R406
R407
R409
R410
R411
R412
R413
R414
R415
R416
R417
R418
R419
R420
R422
R423
R424
R427
R430
R431
R432
R502
R508
R512
R513
R514
R515
R516
R517
R520
R521
R524
R531
R600
R601
R602
R603
R604
R605
R606
R607
R608
R609
R610
R611
R612
R613
R614
R615
R616
R617
R618
R619
R623
R624
R625
R626
R627
R628
R629
R630
R634
R635
R636
R638
R639
R643
R644
R645
R646
R647
R648
R649
R650
R651
R652
R653
R654
R655
R656
R657
R658
R661
R664
R667
R668
R669
R672
R673
R674
R675
R676
R677
R678
R679
R680
R681
R682
R683
R684
R685
R686
R687
R688
R689
R690
R691
R692
R693
R694
R695
R700
R701
R703
R704
R705
R706
R707
R708
R709
R711
R712
R714
R715
R716
R717
R718
R719
R721
R723
R724
R725
R726
R727
R728
R729
R730
R731
R735
R736
R800
R810
R811
R812
R813
R814
R815
R816
R817
R818
R823
R824
R825
R900
R901
R903
R904
R906
R907
R908
R909
R911
R912R913
R920
R921
R922
R923
SC200
SC201
TA400
TA401
TA402
TH300
TH700
TP_A300
TP_BT_PCM_CLK
TP_BT_PCM_DIN
TP_BT_PCM_DOUT
TP_BT_PCM_SYNC
TP_CALL_MCLK
TP_CP_ON
TP_D300
TP_GPS_CLK_EN
TP_IF
TP_PCM_CLK
TP_PCM_IN
TP_PCM_OUT
TP_PCM_SYNC
TP_PDA_ACTIVE
TP_PHONE_ACTIVE
TP_RESET_ALL
TP_RESET_N_RF
TP_RESET_REQ_N
TP_SD_BA300
TP_SD_BA301
TP_U_CTS
TP_U_RTS
TP_U_RXD
TP_U_TXD
TP_WLAN_EN
TP_WLAN_HOST_WAKE
TP_WLAN_SD_CLK
TP100
TP101
TP200
TP201
TP202
TP203
TP204
TP205
TP300TP301
TP302
TP303
TP304
TP305
TP306
TP307
TP308
TP309
TP310
TP311
TP312
TP313
TP314
TP315
TP316
TP318
TP326
TP327
TP400
TP401
TP402
TP403
TP600
TP601
TP602
TP603
TP604
TP605
TP700
TP701
TP702
TP703
TP704
TP706
TP801
TP802
TP803
TP804
TP805
TP806
TP900TP901
TP902
TR500
TR700
TR702
TR703
U100
U101
U102
U103
U104
U106
U107
U108
U109
U201
U202
U203
U300
U400
U401
U402
U403
U404
U406
U408
U500
U503
U601
U602
U603
U604
U605
U606
U607
U608
U609
U700
U701
U702
U704
U705
U800
U801
U803
U900
U902
U903
U904
U913
UCP300
UCP600
UME300
VAR400
VAR401
VAR402
VAR403
VAR700
ZD100
ZD400
ZD401
ZD402
ZD403
ZD404
ZD405
ZD406
ZD407
ZD408
ZD501
ZD700
ZD701
ZD800
ZD900
ZD901

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-3
8-2-2. Bottom
ANT100
ANT101
ANT200
ANT201
C100
C101
C112
C113
C115
C118
C119
C120
C161
C164
C168
C169
C200
C203
C204
C206
C209
C210
C213
C214
C250
C338
C339
C340C341
C500
C501
C502
C503
C504
C505
C506
C509
C510
C511
C513
C717
C725 C726
C727
C728
C729
C731
C732
C733 C739
C740
C741
C742
C750
C751
C752
C817
C823
C824
C905
C906
C907
C908
C926
C927
C928
C937
C938
CD500
CN300
CON100
CON101
CON102
CON103
CON104
CON105
CON106
D300
D500D501
D502
D503
D504
F200
F901
GPS_200
IFC500
L100
L106
L111
L131
L200
L500
L705
L804
L900
OSC200
OSC400
Q800
R101
R102
R109
R110
R111
R112
R113
R115
R200
R308
R310
R311
R321
R322
R401
R402
R421
R426
R500
R501
R503
R504
R505
R506
R507
R509
R510
R511
R518
R519
R522
R523
R525
R526
R527
R528
R529
R530
R532
R533
R534
R637
R670
R671
R713
R720
R722
R733
R734
R801
R802
R803
R804
R805
R806
R807
R808
R809
R902
R919
SIM300
TP_BT_EN
TP_BT_nRST
TP317
TP319
TP320TP321
TP322
TP323
TP324TP325
TP404
TR701
TR704
TR705
U105
U200
U405
U501
U502
U504
U505
U703
U706
U707
U805
U901
ZD300
ZD301
ZD500
ZD502
ZD503
ZD504
ZD505
ZD506

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-4
8-3. Flow Chart of Troubleshooting
Equipments
ÇOscilloscope ÇDigital Multimeter
ÇPower Supply Ç+driver, ESD Safe Tweezer
Ç8960 & Spectrum Analyzer ÇSoldering iron

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-5
8-3-1. Power On
Check the key-FPCB
(open, etc) Change the key-FPCB
And retry to the power-on operation.
END
No
Yes
Check the U701 output voltage
(C737 >1.8
V, C738 >1.2 V,
C734 >1.2 V, C735 >1.3V
C736 >1.2 V)
If the output voltage is not satisfied with normal
condition, Change the U701.
※Each voltage level has ±10% margin.
No
Yes
Check the U701 output signal
(nRESPWRON(R704) >1.8
V) If the output voltage is not satisfied with normal.
condition, Change the U701.
※Each voltage level has ±10% margin.
No
Yes
Check the Battery Voltage.
Is it more than 3.4V? Charging the battery by TA.
check the initial operation
Yes
Abnormal
Check the Clock OSC700(C715)
Is that frequency 32KHz?
Change the OSC700
If OSC700 does not still work, Change the U701
This problem is internal oscillator of U701.
※Test condition (Oscilloscope setting)
:20.0
us.div (time division)
No
Yes
Yes
Change the FRONT ASSY
Power-on the phone and check
the power-on sound.
Sound is ok?
Yes
No
Cell-phone can`t power on.

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-6
BOT
H
0
C607
C
65
5
C668
C673
C674
C684
C685
C700
C701
C702
C703
C704
C705
C706
C707
C708
C709
C710
C711
C712
C713
C714
C715C716
C718
C719
C720
C721
C722
C730
C734
C735
C736
C737
C738
C754
C755
C756
C805
C
91
1
C913
C
92
9
C930
C931
C
93
2
C933
C934
9
35
C936
1
0
L700 L701
L702
L703
L704
L901
OSC700
PREQ700PREQ701
6
19
R624
R628
R629
R682
R683
R689
R690
R69 2
R694
R695
R701
R703
R704
R706
R707
R708
R709
R711
R715
R717
R718
R719
R721
R724
R725
R726
13
14R816
R817
8
23
8
24
R901
3
1
9
R2
1
9
R
R92 0
R921
R922
R923
TH700
TP704
TP706
TP801
TP802 TP803
U603
U
606
U609
U701
U705
0
U913
ZD700
(onepin)
C756
VPP_1.8V
R707 SHORT
C704
C715
L701
ZD700
V_BAT
C730
TP704
C709C708
C713
VAP_IO_2.8V
VAP_VCORE1_1.2V
VUSB_LDO_5V
C716
R709
V_BAT
GPS_LNA_2.8V
R703 SHORT
TH700
C705
R704
C706
C735
C701
VAP_IO_3.3V
VAP_IO_1.8V
V_BAT
C718
VADC_REF1
VADC_REF1
PREQ701
TP706
TP701
C738
C710
OSC700
C736
VSEL_1.2V
VAP_IO_1.8V
SMPS3_SW N9
PBKG N13
SMPS1_SW N2
SMPS1_GND
N3
SMPS5_IN N4
SMPS5_SW N5
LDO2N6
LDO3N7
LDO4N8
SMPS5_GND
M6
LDO3_INM7
SMPS3_GND
M8
SMPS3_GND
M9
PBKG N1
SMPS3_IN N10
SMPS2_GND
N11
SMPS2_SW N12
SMPS3_IN M10
SMPS2_GND
M11
SMPS2_SW M12
SMPS2_IN M13
SMPS1_SW M2
SMPS1_GND
M3
SMPS5_IN M4
SMPS5_GND
M5
SMPS1_GND
L3
SMPS5_FDBK L4
VDDL5
LDO2_INL6
GND_DIG_VIO
L7
LDO4_INL8
GND_ANA
L9
SMPS1_IN M1
CLK32KG
K8
CLK32KAO
K9
SMPS1_IN L1
GPADC_START
L10
SMPS3_FDBK L11
SMPS2_SW L12
SMPS2_IN L13
SMPS1_SW L2
PWM1
K12
SMPS2_FDBK K13
SMPS1_SW K2
SMPS1_GND
K3
MSECURE
K4 SYSEN
K5
PREQ2
K6
INT
K7
PWRON
J2
CTLI2C_SCL
J3
CTLI2C_SDA
J4
NRESPWRON
J5
SIM
J9
SMPS1_IN K1
MMC
K10
PWM2
K11
PREQ3
H6
PREQ1
H7
GND_ANA
H8
REGEN2
J1
BATREMOVAL
J10
DVSI2C_SCL
J11
SMPS4_IN J12
SMPS4_IN J13
SMPS1_FDBK H1
VIOH10
DVSI2C_SDA
H11
SMPS4_SW H12
SMPS4_SW H13
RPWRON
H2
REGEN1
H3
NRESWARM
H4
SMPS4_GND
G12
SMPS4_GND
G13
VDDG2
GND_DIG_VRTC
G3
PBKG G4
VBACKUPG6
ID
G7
REFGND
G8
CHRG_EXTCHRG_STATZ F3
CHRG_EXTCHRG_ENZ F4
BOOT2
F6
VBUS_DET F7
VRTC_INF8
CHRG_PROT_GATE G1
GPADC_IN5
G10
SMPS4_FDBK G11
TESTEN
E3
BOOT0
E4
LDO1F1
VBG
F10
GPADC_IN6
F11
LDO5_INF12
LDO5F13
LDO1_INF2
GPADC_IN1
D8
GGAUGE_RESP
D9
GND_ANA
E1
IREF
E10
VDDE11
LDOLN_INE12
LDOLNE13
CHRG_BOOT E2
LDO6_IND12
LDO6D13
CHRG_VREF D2
BOOT1
D3
CHRG_CSIN D4
CHRG_CSOUT D5
VPROGD6
VRTCD7
CHRG_PGND
C5
VACC6
GND_ANA
C7
REFGND
C8
CLK32KAUDIO
C9
VBUSD1
GGAUGE_RESN
D10
GPADC_IN0
D11
VBUSC1
OSC32KCAP
C10
VSYS_BBC11
CHRG_VSYS C12
CHRG_GATE_CTRL C13
CHRG_PMID C2
CHRG_SW C3
CHRG_SW C4
CHRG_PMID B2
CHRG_SW B3
CHRG_SW B4
CHRG_PGND
B5
CHRG_LED_TEST B6
VDDB7
LDO7_INB8
OSC32KOUT
B9
LDOUSBA7
LDO7A8
OSC32KIN
A9
VBUSB1
VANA_INB10
GPADC_VREF
B11
GPADC_IN3
B12
CHRG_VBAT B13
GPADC_IN4
A11
GPADC_IN2
A12
TESTV
A13
CHRG_PMID A2
CHRG_SW A3
CHRG_DET_N A4
CHRG_PGND
A5
CHRG_LED_IN A6
U701
1NC
NC
2
PBKG A1
VANAA10
C707
L700
TP700
R721
R715
VUSB_3.3V
SHORT
C721
SHORT
R705
C734
C711
C702
C737
VDD_RTC_1.8V
C719
C714
VDD_ANA
C712
L703
VCXIO_1.8V
TP703
VAP_IO_1.8V
R706
VDD_IO_1.8V
C720
R701
TP702
R711
C722
VAP_VCORE3_1.2V
L704
VAP_VCORE2_1.3V
C703
L702
C700
PREQ700
VF
ALS_OUT_2.8V
LCD_SELECT
nRESPWRON
nWARM_RESET
SYS_PREQ
JIGON
COLD_RST
SYS_DRM_MSEC SYS_EN
PMIC_I2C_SCL
PMIC_I2C_SDA
T_FLASH_DETECT
USB_OTG_ID
CLK32K_AP
CLK32K_AUDIO
GPS_BT_CLK32K
PHEONIX_I2C_SCL
PHEONIX_I2C_SDA
SYS_nIRQ1
BAT_REMOVAL
BOOT_0
BOOT_1
BOOT_2

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-7
8-3-2. Initial
Initial Failure
END
Check the AP Reset
nWARM_RESET(ZD700) =1.8 V(High)
Yes
Check the UCP600 (crack, open, etc.)
Check the oscillator clock waveforms.
32.768KHz :OSC700(C715),
24Mhz :OSC600(C695)
Check the OSC700, OSC600.(Crack, open etc.)
Check the output clock waveforms and frequency.
※Test condition (Oscilloscope setting)
:20.0
us.div (time division)
Abnormal
Yes
Normal
No
Re-download SW the cell-phone.
Change UCP600,U701
Abnormal
Abnormal
Change PBA

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-8
BOTH106
BOTH107
BOTHH
O
C400
C401
C600
C601
C602
C603
C604
C605
C606
C607
C608
C609
C610
C611
C612
C613
C614
C615
C616
C617
C618
C619
C620
C621
C622
C623
C624
C625
C626
C627
C628
C629
C630
C631
C632
C633
C634
C635
C636
C637
C638
C639
C640
C641
C642
C643
C644
C645
C646
C647
C648
C649
C650
C651
C652
C653
C654
C655
C656
C657
C658
C659
C660
C661
C662
C663
C664
C665
C666
C667
C668
C669C670
C671
C672
C673
C674
C675
C676
C677
C682
C683
C684
C685
C695
C696
C697
C700
C701
C702
C703
C704
C705
C706
C707
C708
C709
C710
C711
C712
C713
C714
C715C716
C718
C719
C720
C721
C722
C730
C734
C735
C736
C737
C738
C754
C755
C756
C802
C803
C804
C805
C815
C816
C825
C900
C901
C902
C903
C904
C911
C913
C929
C930
C931
C932
C933
C934
C935
C936
C939
C
M
2
0
8
F1
0
8
F
0
0
8
F
HDC801
HDC902
L700 L701
L702
L703
L704
L901
OSC600
OSC700
PREQ700PREQ701
R400
R430
R431
R600
R601
R60 2
R60 3
R604
R605
R606
R607
R608
R609
R610
R611
R612
R613
R614
R615
R616
R617
R618
R619
R623
R624
R626
R627
R628
R629
R645
R646
R647
R648
R651
R652
6
1
R667
R66 8
R682
R683
R685
R686
R687
R688
R689
R690
R691
R69 2
R694
R695
R701
R703
R704
R706
R707
R708
R709
R711
R715
R717
R718
R719
R721
R724
R725
R726
R800
R813
R814
R815
R816
R817
R818
R823
R824
R825
R900
R901
3
1
9
R2
1
9
R
R92 0
R921
R922
R923
TH700
TP401TP402
TP600
TP601
TP602
TP603
506PT406PT
TP701
TP702
TP704
TP706
TP801
TP802 TP803
TP804TP805TP806
TR500
U400
U602
U603
U606
U609
U701
U705
U801
U803
U900
U913
UCP600
ZD700
C695
VAP_IO_1.8V
R691
1
SW
4
VDD OSC600
GND
2
OUT
3
FREF_38.4M_IN
FREF_CLK_REQ
R707 SHORT
C704
C715
ZD700
C713
C716
R709
R703 SHORT
C705
R704
C706
C701
VADC_REF1
PREQ701
TP701
OSC700
VDDL5
CLK32KG
K8
CLK32KAO
K9
PWM1
K12
MSECURE
K4 SYSEN
K5
PREQ2
K6
INT
K7
PWRON
J2
CTLI2C_SCL
J3
CTLI2C_SDA
J4
NRESPWRON
J5
SIM
J9
MMC
K10
PWM2
K11
PREQ3
H6
PREQ1
H7
REGEN2
J1
BATREMOVAL
J10
DVSI2C_SCL
J11
VIOH10
DVSI2C_SDA
H11
RPWRON
H2
REGEN1
H3
NRESWARM
H4
VDDG2
VBA
C
K
U
PG6
ID
G7
BOOT2
F6
TESTEN
E3
BOOT0
E4
VBG
F10
GGAUGE_RESP
D9
IREF
E10
VDDE11
BOOT1
D3
VPROGD6
VACC6
CLK32KAUDIO
C9
GGAUGE_RESN
D10
D11
OSC32KCAP
C10
VDDB7
OSC32KOUT
B9
OSC32KIN
A9
TESTV
A13
TP700
SHORT
R705
C714
TP703
VAP_IO_1.8V
R706
R701
TP702
R711
C700
PREQ700
nRESPWRON
nWARM_RESET
SYS_PREQ
JIGON
COLD_RST
SYS_DRM_MSEC SYS_EN
PMIC_I2C_SCL
PMIC_I2C_SDA
T_FLASH_DETECT
USB_OTG_ID
CLK32K_AP
CLK32K_AUDIO
GPS_BT_CLK32K
PHEONIX_I2C_SCL
PHEONIX_I2C_SDA
SYS_nIRQ1
BAT_REMOVAL
BOOT_0
BOOT_1
BOOT_2

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-9
8-3-3. No Service
No service
END
Check the CP_VSD1,CP_VSD2_1.8V
CP_VSD1 (C336) =0.9~1.4V
CP_VSD2 (C345) =1.8V
Yes
Replace the UCP300
Yes
Check VREF
VREF (C344) =600 mV Replace the UCP300
Yes
No
No
Check memu setting
Menu →applications →setting →wireless and network →
mobile networks →network mode →setting is auto mode ?
Check the connection of RF contact and
intenna
Change the board
PHONE :P3100XXXX
PHONE :unknown
Menu →Phone →Keypad →
*#1234# →check Phone version →
PHONE :P3100XXXX or
PHONE :unknown
Abnormal

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-10
5
U300
A
1
B
3
GND
2
OUTY 4
VCC
R313
VRTC_1.8V
R314
R309
U7
DI3_RX_DATX U8
SYSCLKEN U9
VSS
U16
NC
U17
USIF1_CTS_N U2
USIF1_RTS_N U3
TDO U4
TDI U5
U6
TMS
DI3_RX_DAT
XRESET_N T9
NC
U1
ALERT_N U10
DPLUS U11
HSIC_USB_STRB U12
U13
HSIC_USB_DATA
CC_CLK U14
USB_DPLUS T17
USIF1_RXD_MRST T2
T3
USIF1_TXD_MTSR
TRST_N T4
TRIG_IN T5
TCK T6
T7
DI3_TX_DAT
DI3_TX_DATX T8
USIF1_SCLK T1
T11
DMINUS
CC_IO T13
CC_RST T14
USB_TUNE T16
USB_DMINUS R17
R2
I2S2_WA1
NC
R4
RESET2_N R5
HW_MON1 R6
VSS
R9
USB_TEST P17
I2S2_TX P2
T_OUT1 P3
HW_MON2 P7
I2C1_SDA P9
I2S2_WA0 R1
I2S2_RX P1
CLKOUT2 P10
VSS_PLL
P11
SYS_CLK P12
VSS_USB
N14
USB_ID N16
I2S2_CLK1 N2
T_OUT0 N4
CLKOUT0 N8
I2S2_CLK0 N1
I2C1_SCL N10
VSS_RTC
M16
OSC32K M17
F32K L17
RESET_BB_N K2
REF_CLK_EN K3
K4
TM_EN
J3
M4 J4
M3 J5
M2 J6
EINT3
K10
ON2_N J2
RESET_PWRDWN_N
ON1 H2
H6
M1
RESERVED H8
VREF J1
V
VRTC F4
TRIG_B F6
FSS E3
VSS_PMU
E4
VSS_SD1
F1
SD1_SW E1
SD1_FB D3
D4
ANAMON
C2
SD2_FB
SD1_SW D1
DSP_AUDIO_IN1 B6
B8
FWP
FCDP_RBN A6
VSS_SD2
B1
NC
A17
SD2_SW A2
SD2_SW A3
CP300
NC
1
NC
2
NC
A1
C335
CP_VSD1_1.2V
L302
C336
TP_RESET_N_RF
CP_VSD2_1.8V
L303
R306
TH300
C343
VRTC_1.8V
C344
TP318
R315
C337
C342
OSC300
TP_CALL_MCLK
TP_GPS_CLK_EN
R320
TP312
TP_PHONE_ACTIVE
TP_RESET_REQ_N
TP_CP_ON
TP_RESET_ALL
TP313
TP316
TP315
TP314
R318
SHORT
R317
SHORT
CP_VSD2_1.8V
R316
R319
R305
R307
V_BAT
CP_PMU_RST
RESET_PWRDWN_N
GPS_CLK_EN
HW_MON2
SIM_IO
SIM_RST
SIM_CLK
DI3_RX_DAT
DI3_RX_DATX
DI3_TX_DAT
DI3_TX_DATX
TRIG_IN
CP_D+
CP_D-
RESET_N_RF
SYS_CLK_EN
REF_CLK_EN
TCK_CP
TDI_CP
TDO_CP
TMS_CP
TRST_N_CP
CP_ON
HW_MON1
PHONE_ACTIVE
RESET_REQ_N
DSP_AUDIO_IN1
RESET_PWRDWN_N
SYS_CLK_26M
RF_TOUCH_EN
GPS_CNT
L
S
D2_GND
S
D1_GND
VSD1_GND
VSD2_GND
PS_VOUT_CP
AP_FLM_TXD
AP_FLM_RXD

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-11
8-3-4. Sim Part
Insert SIM card
Check the Pin Soldering
of SIM300
Yes
Yes
No
END
Check the SIM Voltage.
(R310) >= 1.8 or 3.0?
Resoldering and recheck
Change to the new SIM card.
If it doesn`t still work SIM card after changeing
the SIM card, Check the UCP300 (Crack etc)
Yes
No
5
6
NC
NC
7
8NC
NC
9
C6 C6 C7
C7
C8 C8
NC
1
2NC
NC
3NC 4
NC
SIM300
C1 C1
C2
C2
C3 C3
C4
C4
C5
C5
R311
SHORT
R308
CP_VSIM_3.0V
ZD300
VAP_IO_1.8V
C339
R310
C340 C341
C338
D300
ZD301
SIM_RSTSIM_IO
SIM_DETECT
SIM_CLK SIM_RST
SIM_IO

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-12
8-3-5. Charging Part
V_BUS_IN VUSB_5V JTAG_VBUS
_EN 5
7
_FLAG
U502
GND 8
6
GS
ILIM
4
IN
1
NC
3
9OUT
2VBAT
C509
C510
R525
IF_CON_SENSE
Yes
END
Charging Sequence Start
Vin =5V No Check C509 =5
V,
or may not connected TA /USB
Yes
Battery is Charging? No Resolder or Replace U706
Yes
VOUT_CHARGER
C732
C731
C728
R708
R713
R720
C727
VUSB_5V
C725
L705
C726
C740C733
V_BAT
D
G
4
1S
S
2
3S
R722
TR701
5
D
D6
7
D
D8
9
C739 E4 D+
E5 D-
E6
CSOUT
USBIN
D2
GND
D3
GND
D4
GND
D5
CSOUT D6
E1
AUXPWR
E2 USBIN
E3
CSIN
STAT
B6
OTG|LBR
C1
USBIN
C2
C3
SW C4
SW C5
SW
USB5|1|HC
C6
NC D1
THERM A4
EN
A5
SCL
A6 FETDRV B1
VOUTB2
VOUTB3
VOUTLB4
SDA
B5
U706
NC 1
NC 2
NC
A1
NC
A2
NC
A3
C729
VAP_IO_1.8V
TA_EN
CHG_SCL_1.8V
CHG_SDA_1.8V
TA_nCHG
C509
C510
C511
C513
C717
C725
C726
C727
C728
C729
C731
C732
C733
C739
C740
C741
C742
C750
C751
C752
CON10 6
D502
D503
D504
IFC500
L705
R525
R526
R527
R528
R529
R530
R532
R533
R534
R670
R671
R713 R720
R722
R733
R734
TR701
TR704
TR705
U502
U703
U706
U707
ZD 502
ZD503
ZD504
ZD 505
ZD 506
TA /USB Insert

Level 3Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-13
8-3-6. Microphone Part (Main MIC)
Check Sub-PCB module
where main MIC is placed
for any damage (Tear in FPC,
etc)
Check component soldering
statuses of C420, C421
Change the Sub-PCB module
Resolder or replace C420, C421
END
No
Yes
Yes
Yes
No
Check main microphone function
in voice call receiver mode
or in Voice Recording mode
Check the voltage at
C412 =2.8V Resolder or replace U402
No
Yes