GT-S5282

VBAT
VMEM_DCDC_1.8V SENSOR_SDA / S ENSOR_SCL Acce lation Sensor VDD_IO_LOW_1.8V
DCDC MSM_A(0:13)
MEM_DCDC_EN K2DMTR
AAT2146MIJS D(0:31)
MCP SDIO_D(0:3)
VDD_SD1_1V8
MEMORY
DBA0 / D BA1 / SDIO_CMD /
eMMC 4GB + SDIO_CLK / EMMC_RSTN

VEMMC_3.0V
LPDDR 4GB DDQM0~ 3 / DDQ S0~ 3
VMOT_3.3V
SD5DH24A- 4G- 944 SDRAM_CLK / SDRAM_CLE /
M MOTOR
SDRAM_CAS / SDRAM_CEN /
8-1.Block Diagram

SDRAM_RAS / SDRAM_WEN

CAM_MCLK / C AM_PCLK / CAM_RESET / VCAMC_1.8V

CAM_HSYNC / C AM_VSYNC VCAM_IO_2.8V
VCAM_2.8V_AVDD
CAM_SDA / CAM_SCL

CAM_D(0 ~ 7)
2M FF CAM
8. Level 3 Repair

TSP_SCL / TSP_SDA TSP_SCL / TSP_SDA

TSP_INT TSP TSP_INT TSP

S2200
Conn.
VDD_TSP_1.8V / VTOUCH_3.3V (Synaptics)
VDD_TSP_1.8 V / VTOUCH_3.3V
GSM_850_RX / EGSM_RX VDD_RF0_2.85V
RX SAW
(SFRM81MB002) LCD
DCS_RX / PCS_RX Conn. TFT LCD
RX SAW GSM IQ LCD_FLM / L CD_RESER_N
3.0" QVGA
(SFWG42MB002) 40pin VLCD_3.0V /
VDD_IO_LOW_1.8V
VBAT LCD_CS / LC D_WR / LCD_RS / LCD_RD
DCS_PCS_TX Transceiver RF_SPI FILTER
ADF-10 S-03Q-05 0- EF1- SBF LCD_D(0:15) _F
SR1019S
EGSM_GSM850_TX
2G PAM
+
FEM
(SKY77580)
DCXO(26MHz)
VBAT
CXC6X260000GJVRR00
LCD_BL_EN BL Driver
LED_P_24V / LED_N
KTD253BEHD

D_REF_CLK_26M KBC(0) / KBR(0) / KBR(1) VOL

KEY

KBR(2) / KBC(1)
RFCTL(10,12,15) / PA_EN / PA_RAMP HOME KEY

SC6820ES ON_SW POWER

KEY

8-1
FG_SDA / FG_SCL VBAT

LOW_BAT_DET
FUEL VF BATTERY
GAUGE 1200mAh
FG_CHG STC3115IJT VBAT_GND

VBAT
VDD_IO_LOW_1.8V
BT_RF
CHG_EN
WLAN_TX / WLAN_RX
SAW BT WIFI SW CHG_STATE VBAT
BT_WAKE / BT_HOST_WAKE / BT_VREG_EN / BT_RST_N CHARGER
TBF-1608- 245-R 7 RDASW36 CHG_DET
SW_BT / SW_WLAN_RX_TX BT_PCM / BT_UART RT9532HGQW
VBUS_5.0V_IF

WIFI_SPI
VBUS_5V
BT / Wi fi / FM WLAN_RST_N / WL_HOST_WAKE JIG_ON
BCM4330LB2KUBG
WIFI_CLK32K

USB_D_P / USB_D_M
BT/ WIFI TCXO
CXC6X260000GHVRN00
(26MHz) TXD2 / RXD2
SPK

SPK_P / SPK_N VBAT

VBAT_AP
OVP Load
NCP367 Switch

RCV_P / RCV_N ET3148

RCV Micro USB
32KHz Clock
connec tor
FC-135( 12.5PF)

MIC_OUT_P / MIC_OUT_N

MAIN MIC SIM1_RST / SI M1_CLK SIM So cket VSIM1_3.0V

#1
SIM1_IO
DETECT Comparator EAR_3.5_DETECT / EAR_SEND_END
FAN256L8X

EAR_ADC_3.5 EAR_ADC_AP SIM2_RST / SIM2_CLK SIM Socket VSIM2_3.0V

#2
SIM2_IO
EAR_MIC_OUT_P / EAR_MIC_OUT_N
3.5 pi
EAR JACK COM_OPEN_DET SD_D(0~ 3)

SD_CLK / SD_CMD
T- Flash VDD_SD_3.0V
Socke t
EAR_OUT_L / EAR_OUT_R EAR AMP EARSPK_L / EARSPK_R nTF_DETECT

EAR_AMP_ON
NCP2811BFCT1G

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.
Level 3 Repair

8-2. PCB Diagrams

8-2-1. Top

R335
ZD50
3 ZD50
2

U302
D500
RCV500

C364
R323 R332
L511

U301R328
L510
R513R528
C512 RCV501

ZD500

C505
ZD504
L503
L504

C504

SW400

8-2
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.
 Level 3 Repair

8-2-2. BOTTOM

JTAG300
J TAGA3 00 J TAGB3 00
MAIN_TP

EAR1
BOT102
C413
R428

BOT109 BOT108

TP403

TP402
CAM400 TP400

TP401
TAC40

SD400
L508

TAC40
1

C517 R511

L505 C520
C534

ZD505

C537
MOT501 L506

R506
SPK500
L516

ZD501
MOT500

2
C515 C514

L507
L509
R521 R520 C412 C410
R419
C422
C524

U503

R329

R439 C411 C536 C535

C408
R406
C501

C503
C502

C500
C538

R327 C365 R321 R322 C403 C402 C404 R400 C400 V501 V503 L501 L500 C401 C405 C407 R401 C406

R408
C409
R407
C522 R402 R532
Q300
R429

R334

L512 R403 R405

R415
V400
R404 C528 C525 C526
C523C521

U504
C414 AMP_ON
R417

TAC40
L513 R302

R418 V401
R526R527
C358
VR300

D501 R304
L515
R524 R525
C527 C530 TP_INT_60 0 TP_INT_60 1

R523

U401
C426 C425

R515 R529
L514

0
R533
C531

SIM400 SIM401
TP505
TP503
R508 R500
C529 R319 R320
TP502 TP504 TP506

R503
R530
R313 U500
R531
R314 Q500 TP500

D502
C518 U501
L502

D503
TP507 C519
C516
R516
R517
R512
R507
C533 R505
HEA501 TP508 C532
R522
R519 C228
R351 R352
R355 R356

F200 L209
F504F500

L210
L205

ANT20
C225
C230 C229
R331

PAD300 TP306
C226 C235
C218
0

R204
U200
C210

C232
C215
C202
L201
L200 C216
C223
C203
C209

C224
C233 C234

L20 6
C311
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

C211

F503 F502 F501 C344 C313 C349 C309

C345 C346 R310 R312
R202
C219
C320 C326

TP209
L202 L207
L301 TP205

U201
C204
TP206 C214 C212
TP207 L203
C208
TP305 TP208
C217
L300 TP201 C207
C201
R200

L208

TP_DDR_A300
C342

C354OSC30
C343
C355

TP308
C231
C206
C213R205
C205
L204
OSC20
C324

UME300 UCP300 C300 TP203 TP200 TP204

R300

C341
C357
R303

TP202
R301
C200 TA300
0
C347 C356 C334 C323

C369
C328
0C321

C332
C314
C335

TP_TQ C325
R101
C118

C127
C120

L107

C124
C122
C123
C125

C126

C353 C360
C348 C361
U100

C304
C363 R420
R318
R410
R409 Q400
C308
C337
C338

C301
C351

R427
V402
R338
R339
R337
C352

R311

C305
C329
C302

C327
C333
C362
C336
C322
R437
R413
R436
R411
R438
C350
R305
R308
R306
R307

C121

C303 TP307
C110 C109
L302

R346
C416
C359

C367 C415
D401 R414 U400 R349 C115
D404

C366
R426

C421 L105
R435 C368 C132 L108 C131
R416 R421

R431
OSC100 C12

C428 C112
C417

L106L104L101L102
U402

U305

U403
C419

C119
R430 R347 L103
C423

F101

U304 C427 R348 C420

C117
RFS10

C114 C103
R432
R433 R434 R354 R353
TP_RF_SPI_CL TP_RF_SPI_L
K E C133 U101 C116
C107
L100
C102
L109
C510

R501
F100
D402

ZD401 TP_RF_SPI_DATA
C108
R345
R350
R344
R343
R342

R502 C507
C128

C130

C111
0

R509 C509 C113

9

R423
BOT100 BOT101

BTC400 BOT107
C104

L111

L110

C101
U404

BOT105 C424 C100

R425
R424
R422

D405
ANT10

ANT10

MIC500
0

IFC400

8-3
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.
Level 3 Repair

8-3-1. Power On

Cell-phone can`t power on.

Charging the battery by TA.

No
Check the Battery Voltage. If its voltage level is extremely low(under 3.0V),
Is it more than 3.5V?
Change the battery.

Yes

Power-on the phone and check Yes Change the FRONT LCD Assy.
the power-on current ≥ 100mA or re-download binary

No

Abnormal Change the TAC401.

Check the ONKEY
(TAC401) And re-try to the power-on operation.

Normal

If the output voltage is not satisfied with normal

Check the UCP300 output No
voltage. (C316 > 1.2V) condition, Change the UCP300
※ Each voltage level has ±10% margin.

Yes

Change PBA

END

Yes

Check the UCP300

8-4
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.
 Level 3 Repair

VBAT

R439

R419
ON_SW

NC
3
NC NC
2 S2 1 S1 4
NC NC
C422 5
NC NC
6
TAC401 NC

PWR KEY
VDD1P2 VDD_IO_LOW_1.8V
VDDCORE

VCAM_IO_1.8V

VMEM_DCDC_1.8V VDD_TSP_1.8V VDD_SD1_1V8

VDD_IO_LOW_1.8V
VBUS_5V

C309
C313

C310
C311

C312

VDD_IO_LOW_1.8V
C316

C317

C318

C319

VDD_SD_3.0V
VDDCORE

VIB_CTRL

C326
C340
VBAT_AP
C337

C338

C339
C341

OSC300 R300 AVDDVBOVBBD_2.5V

C347 R301

C355
C353
AE21
AE18
AE15
AE5
AE6
U17

U18

R18

N17

R17

R20

U20
P18

P17
E10

V17
V18

V20

V15
F10

T18

T17

T20
J10

J11
J12

J17

W1
M5
M2

M1

N5

N3

N6
B9

V5
V6

E1

V1
V2

V3
F9

T1
T3
J2
VDD1P2
VDD1P2

VIO_2

VIO_1

VMEM

VSIM2

VSIM3
ISENSE
VCHGR
VDRV

VDD25_EFUSE
VDD1P2
VIO_2

VIO_1

VIO_0
VIO_0
VIO_0

VNF
VMEM
VMEM

VMEM

VDDSD1
VDDSD0
VDD_D

VDD_D
VDD_D

VDD_D

VCMPA
ADCI0
ADCI1
ADCI2

ADCI3

RTC32KI

VCAM
RTC32KO

VDDAO
VLCD

VIBR
VBAT_SENSE

AVDDVBO
KPLED

VBATBUCK

VBATBUCK
VBATBUCK
VBATBUCK
C14
LCD_ESD_DET E14
RFCTL_0

RFCTL_1
A13
RFCTL_2
B14
EAR_AMP_ON RFCTL_3
H14
RFCTL_4
C13
RFCTL_5
B12
RFCTL_6

UCP300
E13
RFCTL_7
F13
RFCTL_8
B13
RFCTL_9
H13
TxEN RFCTL_10
C12
RFCTL_11
F12
BS RFCTL_12
H12
RFCTL_13
E12
RFCTL_14
B11
VSW_EN RFCTL_15

C9
XTL_EN
TP_RF_SPI_LE B15
RF_SPI_LE RFSEN0
TP_RF_SPI_CLK A14
RF_SPI_CLK RFSCK0
TP_RF_SPI_DATA E15
RF_SPI_DATA RFSDA0

8-5
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.
Level 3 Repair

BOT102
C413
R428

BOT109

TP403

TP402 TP400
CAM400

TP401
TAC401

MOT501

MOT500
C311
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

C320

L301
C326

TP305

TP_DDR_A300 L300
C342

C354
C343
C355

TP308
C324

C300
OSC300
R300

UCP300 C341
R301
C347 C356 C334 C323

C369
C328
C321
C314
C335

C332
C325
C353
C360
C348
C361
C363
R318
R410
R409
C308
C337
C338

C301

C304
R427
V402
C305
C329
C302

C327
C333
C362
C336
C322
R438

TP307
C303
Q400
C416

R420

R346

8-6
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.
 Level 3 Repair

8-3-2. Initial

Initial Failure

Yes

Re-download latest SW on the

mobile phone.

Abnormal

Check the oscillator clock waveform. Abnormal Check the OSC100.

26MHz : OSC100 (Crack, open etc.)
Check the output clock waveforms and frequency.

Normal

Change UCP300

Abnormal

Change PBA

END

8-7
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.
Level 3 Repair

VDD_SYN VCC_DIG VCC_TX VDD_RX

L108
C130

C128

C129
C131

C132

H3

C9

D8
F8

F9

A4

B4
J3
VDD_SYNTH

VDD_DIG

VDD_DCXO

VDD_TX

VDD_RX
VDD_TXLO

VDD_RXLO
VDD_BB

H4
TRX1_I+ GSM_IP
J4
TRX1_I- GSM_IN
A3 H5
GSM_RX_P LB1_RX+ TRX1_Q+ GSM_QP
A2 J5
GSM_RX_N LB1_RX- TRX1_Q- GSM_QN
A1 H6
GSM850_RX_P LB2_RX+ NC
B1 J6
GSM850_RX_N LB2_RX- NC
H7
NC
C1 J7
PCS_RX_N HB1_RX+ NC
D1
PCS_RX_P HB1_RX- C133
E1 G9
DCS_RX_P HB2_RX+ REF1_OUT D_REF_CLK_26M
F1 G8
DCS_RX_N HB2_RX- REF2_OUT
E6
U101 REF3_OUT
G1 J9
NC REF_IN+
H1 J8 3
NC REF_IN- 4
J1
NC
J2 H9 2 1
NC REF1_EN

A5
REF2_EN
H8

D5
OSC100
GSM850/900_TX LB1HB1_TX REF3_EN
A6
DCS/PCS_TX LB2HB2_TX
E8
SPI1_LE RF_SPI_LE
A7 E9
NC SPI1_CLK RF_SPI_CLK
A8 D9
NC SPI1_DATA RF_SPI_DATA
A9
NC
F5
NC
E4
GND
E5
GND
GND
GND

GND
GND
GND

GND
GND

GND
GND
GND

GND
GND
GND

GND
GND

GND
NC
NC

NC
NC
G2
C8

C2
D2

H2
D4

D6
E2
B9

B2
B3

B5
B6
B7

B8

F2

F4
F6

1
2

C132L108C131
OSC100

L106

C119
F101

C117
L104

C114
C116
U101
L101 L102

C133 C107
F100

C108
C128
C129
C130

C111
C113

8-8
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.
 Level 3 Repair

8-3-3. No Service

No service

Yes

Check memu setting

Menu → applications → setting → wireless and network →

mobile networks → network mode → setting is auto mode ?

Yes
Check the Main Antenna
not-exist or damaged Replace Main Antenna

No

Check the RFS100, C104,

L111,C100,L110, No
Re-solder RFS100, C104, L111,C100,L110,
C101,L109,C102,L100,C103 is well C101,L109,C102,L100,C103 correspondingly.
soldered

Yes

No
Check C109,C110 >= 3.0 V? Replace the U100

Abnormal

Change the PBA

Yes

END

8-9
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.
Level 3 Repair

VBAT
ANT100 ANT101
1 1 RFS100
1 1
2 2
2 2

G
G

1 C
A
4
3
2
C100 L110

C104
L111 C101
C102
C103

L109 L100

F101
C109 C110

6 OUT
7 OUT
IN 1
8 OUT
9 OUT
G
G
G
G
G

L105
5
4
3
2
10

26
3
4

ANT
VBATT
VBATT
10
TX_HB_IN
TXEN 17
9 U100 16
TX_LB_IN VRAMP
11
VSW_EN
12
BS
C356 C334 C323
C321
C314
C335

C332
C325
R101
C118

C127
C120

L107

C124
C122
C123
C125

C126

C353
C360
C348
C361
U100

C304
R427
V402
C322

C121

TP307
C110

C303

C115
C109

L105
C132L108C131
C112
L106

C119
F101

L103
C117
RFS100
L104

C103
C114
L100
C116
U101
L101 L102

C102
C107
F100

L109
C108
C111
C113
BOT101
C104

L111

L110

C101 BOT107

C100
ANT100

ANT101

8-10
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.
 Level 3 Repair

8-3-4. Sim Part

Insert SIM card

Yes

Check SIM400,SIM401 to No
soldering well Resolder or replace SIM400,SIM401

Yes

Change to the new SIM card.

Check the SIM Voltage. No
If it doesn`t still work SIM card after changeing
(R400, R401) >= 3.0?
the SIM card, Check the UCP300 (Crack etc)

Yes

END
VSIM1_3.0V VSIM2_3.0V

SIM400 R400 SIM401 R401

VCC 1 VCC 1
RST 2 SIM1_RST RST 2 SIM2_RST
CLK 3 SIM1_CLK CLK 3 SIM2_CLK
GND 5 GND 5
VPP 6 VPP 6
IO 7 SIM1_IO IO 7 SIM2_IO

GND 8 GND 8
GND 9 GND 9
GND 10 GND 10
GND 11 GND 11
GND 12 GND 12
13 13
C401

C406
C400

C403

C407
C402

C405

GND GND
C404

SIM CON
R329

C408
C503
C502

C500

C365 R321 R322 C403 C402 C404 R400 C400 V501 L501 L500 C401 C405 C407 R401
R402
Q300

R334

R403 R405
R404 C528

SIM400 SIM401

8-11
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.
Level 3 Repair

8-3-5. Charging Part

TA / USB Insert

Yes

No
TA / USB is normal? Change TA or USB

Yes

No
VBUS_5.0V_IF(C416) = 5.0V ? Replace U404,C416

Yes

No
Battery is Charging? Resolder or Replace U400

Yes

END

8-12
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.
 Level 3 Repair

VBAT

R435

C421 R416 B1
VOUT VOUT A1

B2 VIN U402 VIN A2

C2 ON C423
GND C1

NC

NC
R420
R421

1
13
NC 12 VBUS_5.0V_IF
NC 11
NC 10 U404
NC 9 1 10
NC 8 IN _EN
NC 7 R422 2 9
S2 6 RXD2 GND NC
S1 5 3 8
5 4 _FLAG NC
R423
4 3 TXD2
R424 4 7
3 2 USB_D_P IN OUT R426
R425
2 1 USB_D_N
5 IN OUT 6
1

GND

IN
IFC400 ZD401
11 12

1 D- VBUS 6
D405

C424
D402

2 D+ NC 5

3 ID NC 4
7 GND
RXD2_JTAG
TXD2_JTAG

IF Connector(u-USB)
VDD_IO_LOW_1.8V

VBAT
R409

R410
VBUS_5.0V_IF

VBUS_5V U400

1 10
VIN BATT

2 9 R413
ISET PGB CHG_DET

3 8 R437
GND CHGSB CHG_STATE

4 7
LDO GND D401
5 6
IEOC EN|SET CHG_EN
GND

R436
FG_CHG
11
C415

C416

R414

R411

Charger
R438

VBAT

8-13
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.
Level 3 Repair

C363
R318
R410
R409
C308
C337
R413

R411
R437

R436

R438
C350
R305
R308
R306
R307

Q400
C416
C359

R420
R346
C415
R349

D404

R426
U400
R414 C421
R435 C368

R416 R421
R431

C417

U402

U305
C419
R347

C423
R348 C420

R354 R353

D402
ZD401
R345
R350
R344
R343
R342
R423

BTC400

U404
C424

D405

8-14
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.
 Level 3 Repair

8-3-6. Microphone Part

Check microphone function

in voice call receiver mode
or in Voice Recording mode

Yes

Check the main MIC500 is No

placed for any damage Resolder or replace the main MIC500

Yes

Check the voltage at No

R501 = 2.8V Resolder or replace UCP300

Yes

Check component soldering No

statusesofL503, Resolder or replace L504,C504,C505,C507,C509,R509
L504,C504,C505,C507,C509,R509

Yes

END

8-15
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.
Level 3 Repair

VMIC_BIAS

R501 C510
ZD500

R502

L503 C507
MIC_OUT_P

C504 C505

L504 C509
MIC500 MIC_OUT_N

R509
EAR_SEND_END
ZD504
L302

Q400
C416
C359

R420
R346
C367 C415
R349
D404

D401

R426
U400
C366 R414 C421
R435 C368
C428 R431 R416 R421
C417

U402

U305
C419

U403 R347
C423

R430
U304
C427 R348 C420
R432
R434 R354 R353
R433
C510

D402

R501
ZD401
R345
R350
R344
R343
R342

R502 C507
R509 C509 R423
BOT100

BTC400
U404

BOT105
C424

D405

MIC500
ZD500

C505
ZD504
L503
L504

C504

8-16
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.
 Level 3 Repair

8-3-7. Speaker Part

Check speaker function.

Play MP3 with maximum volume level.

Yes

Yes
Check SPK500 PAD and
SPK Module is Contacted? Contact SPK500 and SPK Module well

No

No
Check the signals on
C501,C503 Resolder or replace C501,C503,V501,V503

Yes

Replace speaker

8-17
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.
Level 3 Repair

C501 V501

SPK_P
SPK500

SPK_N

C503 V503

Speaker
SPK50 0
C501

C503
C502

C500

V503 C40 1 C40 5

R40 0 C40 0 V50 1 L50 1 L50 0

8-18
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.
 Level 3 Repair

8-3-8 Receiver Part

Check receiver function

in voice call receiver mode.
Yes

Check RCV500,RCV501 Yes Resoldering RCV500,RCV501 and RCV

and FPCB is soldered well?
FPCB

No

Check the signals on No

Replace and resolder
L500,L501
ZD502,ZD503,C502,C500,L500,L501

Yes

Replace receiver

8-19
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.
Level 3 Repair

ZD502

C500 RCV500
1
L500 1

2
RCV_P 2

L501 RCV501
1
RCV_N 1

2
2
C502
ZD503

TOP SIDE

BOT side

SPK500 ZD503 ZD502

RCV500
C503
C502

C500

V503
L501 L500 RCV501

8-20
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.
 Level 3 Repair

8-3-9. BT/WIFI

BT/WiFi is not working

Yes

Check BT or WiFi function No

Enable BT or WiFi Function
ON

Yes

Yes
FPCB antenna is damaged? Replace BT/WiFi antenna

No

No
Check C203 = 3.3V? Replace U201

Yes

Replace PBA

Yes

END

8-21
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.
Level 3 Repair

VDD_CORE_1.2V
VBAT VOUT_3.1V VOUT_3.3V VDD_LN_1.2V VDD_IO_LOW_1.8V VBAT
VOUT_3.1V
VDD_BT_1.2V VOUT_3.3V VDD_FM_1.2V

C202 C203
C204

C205

C206
C211

C207

C208

C209

C210
C212

C213
VDD_CORE_1.2V
VOUT_3.3V VDD_WRF_1.2V

L203
VDD_CORE_1.2V

C217

VDD_WRF_1.2V VIN_LDO_1.5V

SW_WLAN_TX
VDD_LN_1.2V
VIN_LDO_1.5V
L204

VDD_IO_LOW_1.8V
C219

R205
M10
D10
E10
E12
B11

A11

F12

K12

K11
L12

J11

J12

L10
M9

M3
G4
E8

E7

D1

D2

C3

H3

E1
B8
A8

B9

K8

F7

K1

K7

B7

A4

F3

F2
L1

L3

WRF_VCO_LDO_OUT_VDD1P2
WRF_VCO_LDO_IN_VDD1P8
WRF_LOGEN_A_VDD1P2

WRF_PADRV_VDD5P0

WRF_TCXO_VDD3P3
WRF_AFE_VDD1P2

WRF_LNA2G_VDD1P2

WRF_XTAL_VDD1P2
FM_RFVDD1P2

WRF_ANA_VDD1P2

WRF_PA_VDD5P0
BT_RFVDD1P2

FM_AUDIOVDD
BT_VCOVDD1P2
BT_IFVDD1P2

FM_VDD2P5
HSIC_AVDD12

VDDIO_RF_0

VOUT_3P1
VOUT_3P3
BT_PAVDD3P3

BT_VDDO_0

VOUT_LNLDO1

WL_VDDC_0
WL_VDDC_1

WL_VDDC_2
WL_VDDO_0
VOUT_CLDO
FM_PLLVDD
BT_PLLVDD1P2

BT_VDDC_0
BT_VDDC_2

SR_VDDBAT1
SR_VDDBAT1

SR_VDDBAT2

VDD_LDO

TP200 F9 H4 TP201
BT_WAKE BT_GPIO_0 WL_GPIO_0 WL_HOST_WAKE
D9 G5
BT_HOST_WAKE BT_GPIO_1 WL_GPIO_1
H10 H5
TP209 BT_GPIO_2 WL_GPIO_2
H9 D5
BT_GPIO_3 WL_GPIO_3
H12 J8
J9
BT_GPIO_4 WL_GPIO_4
L6
WLAN_RX
BT_GPIO_5 WL_GPIO_5
H8 D8
BT_GPIO_6 WL_GPIO_6
G8 L9 TP202 C223
BT_GPIO_7 WL_REG_ON WLAN_RST_N
A9 A7
BT_RF TP203 K10
BT_RF WRF_RFIN
A6 WLAN_RX
BT_VREG_EN TP204 G10
BT_REG_ON WRF_RFOUT WLAN_TX
BT_RST_N BT_RST_N
B1
C224
WRF_RFIN_5G
C233 A12 A2 L206
FM_L C234 B12
FM_AOUT1 WRF_RFOUT_5G

FM_R FM_AOUT2
G3
WRF_TCXO_IN
C12
FM_TX
L207 D12 H1
FM_ANT D11
FM_RXN WRF_XTAL_ON
G1
XTAL_OUT

U201
FM_RXP WRF_XTAL_OP XTAL_IN
J6 D4
BT_PCM_IN J5
PCM_IN WRF_A_TSSI_IN
E4 R202 SW_WLAN_RX
BT_PCM_OUT H6
PCM_OUT WRF_GPIO_OUT
E3
BT_PCM_CLK K6
PCM_CLK WRF_RES_EXT

BT_PCM_SYNC PCM_SYNC
L2
HSIC_DATA
K5 J1
SW_BT J2
RF_SW_CTRL_0 HSIC_RREF
M2
SW_WLAN_RX L4
RF_SW_CTRL_1 HSIC_STROBE

SW_WLAN_TX M4
RF_SW_CTRL_2
G7
RF_SW_CTRL_3 I2S_DI
K3 H7
RF_SW_CTRL_4 I2S_DO
J4
RF_SW_CTRL_5
J3 G12
RF_SW_CTRL_6 CLK_REQ_OUT
K4 J10

L502
RF_SW_CTRL_7 EXT_PWM_REQ
K9 VIN_LDO_1.5V C518
EXT_SMPS_REQ
M6 R203 U501
WIFI_SPI_IN M8
SDIO_DATA0
J7
WIFI_SPI_IRQ SDIO_DATA1 LPO WIFI_CLK32K C519
M5 M12 C516
SDIO_DATA2 SR_VLX

R516

R517

R512

R507

R505
L8 F5
WIFI_SPI_CS SDIO_DATA3 JTAG_SEL L208
M7
WIFI_SPI_CLK L7
SDIO_CLK
G11 C231
WIFI_SPI_OUT SDIO_CMD TM0|NC_FOR_A0
D7
NC|CLK_REQ_IN
TP206 E6 E9
UART_RXD TP205 D6
UART_RXD NC|CLK_REQ_MODE

UART_TXD UART_TXD
WRF_LOGEN_A_GND

TP208 G6 1
UART_CTS_N
WRF_PADRV_GND
WRF_LNA2G_GND

UART_CTS_N NC
TP207
WRF_XTAL_GND

F6 2
WRF_VCO_GND
WRF_ANA_GND
WRF_AFE_GND

UART_RTS_N C228
FM_VSSAUDIO

UART_RTS_N NC
WRF_PA_GND
WRF_PA_GND

WRF_PA_GND

R351 R352

R355 R356
FM_VSSVCO
FM_PLLVSS
BT_VSSC_1
BT_PLLVSS

HSIC_AVSS

PMU_AVSS
FM_RFVSS

WL_VSS_0
WL_VSS_1
WL_VSS_2
BT_RFVSS
BT_FEVSS

WRF_GND
BT_IFVSS

SR_PVSS
BT_VSS

F200 L209
L205

ANT200
L210
M11
C10

E11
C11
A10

B10

F10

F11

L11
M1
C8

C9

E5

C1
C5

C7
D3

C4

H2
K2

F4

B2
B4

B6
F1
F8

L5

C225

C230
R331

C226 C235

TP306 C218
C229

U200
R204
C210

C232
C215

C202

L201

L200
C223

C203
C209

C224
C233 C234

L206
C211
C216

R202
C219
TP209 L207
L202
TP205 C204
TP206C214
C212
TP207L203

TP208 U201 C208

C217
TP201 C207
C201

R200

L208
C231
C206
C205
C213

L204
OSC200

R205

TP203 TP200 TP204

C357

R303

TP202

TA300
C200

8-22
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.
 Level 3 Repair

8-3-10. LCD

LCD is still off after PWR ON

Yes

No
Check the connection of
HEA501 Reassemble LCD

Yes

Yes
LCD is damaged? Replace LCD module

No

Check the soldering status of No Resoldering EMI Filters

EMI Filters (F500, F501, F502, F503, F504)

Yes

No
Check C532> 3.0V Resolder or Replace the UCP300

Yes

Replace LCD module

Yes

END

8-23
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.
Level 3 Repair

VLCD_3.0V

VDD_IO_LOW_1.8V
HEA501

C523
1 2
1 2
TP502 3 4
LCD_WRF 3 4
TP503 5 6 C414
LCD_RDF 5 6 LED_N
TP504 7 8
LCD_RSF 7 8 LED_P_24V
TP505 9 10
LCD_FLM 9 10 R302
TP506 11 12
LCD_RESET_N 11 12
TP507 13 14 L513
13 14

C521
VDD_TSP_1.8V LCD_CSF C358
15 16
VTOUCH_2.8V LCD_VGH 15 16
17 18 TP508
VDD_TSP_1.8V LCD_F(1) 17 18 LCD_F(0)
19 19 20 20 VR300
LCD_F(3) LCD_F(2)
LCD_F(5) 21 21 22 22 LCD_F(4)
LCD_F(7) 23 23 24 24 LCD_F(6)
R523 R304
R533 LCD_F(9) 25 25 26 26 LCD_F(8) D501
LCD_F(11) 27 27 28 28 LCD_F(10)
LCD_F(13) 29 29 30 30 LCD_F(12)
L515
LCD_F(15) 31 31 32 32 LCD_F(14)
L514 33 34
33 34 TSP_SCL R523
L515 35 36
35 36 TSP_SDA
nTSP_INT 37 37 38 38
39 40 L514
39 40

C531 C529 R533

C532 C533

D502

D503
TP505
TP503 C531

TP502 TP504 TP506 C529

R313

R314

D502

D503
F500 F501 TP507

5 5 C533
1 IN1 OUT1 1 IN1 OUT1
LCD_D(6) LCD_F(6) L CD_D(14) L CD_F(14)
2 IN2 6 2 IN2 6 HEA501 TP508 C532
LCD_D(4) OUT2 LCD_F(4) LCD_D(12) OUT2 LCD_F(12)
3 IN3 7 3 IN3 7
LCD_D(2) OUT3 LCD_F(2) L CD_D(10) OUT3 L CD_F(10) R522
4 IN4 8 4 IN4 8
LCD_D(0) OUT4 LCD_F(0) L CD_D(8) OUT4 L CD_F(8) R519
GND GND GND GND

F504
10 9 10 9

F502 F503

F500
1 IN1 5 1 IN1 5
LCD_D(7) OUT1 LCD_F(7) LCD_D(15) OUT1 LCD_F(15)
2 IN2 6 2 IN2 6
LCD_D(5) OUT2 LCD_F(5) LCD_D(13) OUT2 LCD_F(13)
3 IN3 7 3 IN3 7
LCD_D(3) OUT3 LCD_F(3) LCD_D(11) OUT3 LCD_F(11)
4 IN4 8 4 IN4 8
LCD_D(1) OUT4 LCD_F(1) LCD_D(9) OUT4 LCD_F(9)
GND GND GND GND
10 9 10 9

C344
F503 F502 F501
C345C346

F504

1 IN1 5
LCD_CS OUT1 LCD_CSF
2 IN2 6
LCD_WR OUT2 LCD_WRF
3 IN3 7
LCD_RS OUT3 LCD_RSF
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

4 IN4 8
LCD_RD OUT4 LCD_RDF
GND GND
10 9

TP305

TP_DDR_A300
C342

C300
R300

UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-24
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.
 Level 3 Repair

8-3-11. TSP

Touch Screen does not work

Yes

No
Check connection of TSP and Reconnect the TSP and HEA600
HEA501

Yes

No
Check R533 = 3.3V Re-solder or Replace UCP300

Yes

Replace the TSP module

Yes

END

8-25
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.
Level 3 Repair

C523
C414

R302
L513

C521
C358

VR300

R304
D501
L515
VLCD_3.0V
R523

VDD_IO_LOW_1.8V L514
HEA501

1
R533
1 2 2
TP502 3 4 TP505
LCD_WRF 3 4 TP503
TP503 5 6 C531
LCD_RDF 5 6 LED_N
TP504 7 8
LCD_RSF 7 8 LED_P_24V
TP505 9 10 TP502 TP504 TP506 C529
LCD_FLM 9 10
TP506 11 12
LCD_RESET_N 11 12
TP507 13 14
VDD_TSP_1.8V LCD_CSF 13 14
15 16
R313
VTOUCH_3.3V LCD_VGH 15 16
17 18 TP508
VDD_TSP_1.8V LCD_F(1) 17 18 LCD_F(0)
LCD_F(3) 19 19 20 20 LCD_F(2) R314
LCD_F(5) 21 21 22 22 LCD_F(4)
LCD_F(7) 23 23 24 24 LCD_F(6)
R523 25 26 D502
R533 LCD_F(9) 25 26 LCD_F(8)
LCD_F(11) 27 27 28 28 LCD_F(10)
LCD_F(13) 29 29 30 30 LCD_F(12)
LCD_F(15) 31 31 32 32 LCD_F(14) D503
L514 33 34
33 34 TSP_SCL TP507
L515 35 36 TSP_SDA
35 36
nTSP_INT 37 37 38 38
39 39 40 40 C533

C531 C529
C532 C533 HEA501 TP508 C532

D502

D503
R522

R519

F504
F500
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

TP305

TP_DDR_A300
C342

C300
R300

UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-26
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.
 Level 3 Repair

8-3-12. Camera

"Camera" function does not work

Yes

Check the No
connect state on CAM400 Connect CAM400 well

Yes

Check the voltage

C410 = 2.8V No Resolder or replace UCP300
C411 = 1.8V
C412 = 1.8V

Yes

Check R429 = 24 MHz No Resolder or replace UCP300

Yes

Replace the camera module

Yes

END

8-27
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.
Level 3 Repair

VCAMC_1.8V

VCAM_IO_1.8V

VCAM_2.8V_AVDD

CAM400

1
1 CAM_SCL
2 CAM_SDA
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10 TP400
10 CAM_RESET
11
11
12 TP401
12 CAM_D(0)
13 13 CAM_D(1)
14 14 CAM_D(2)
15 15 CAM_D(3)
16 16 CAM_D(4)
17 17 CAM_D(5) TP403
18 18 CAM_D(6)
19 19 CAM_D(7)
20 TP402 TP402 TP400
20 CAM_HSYNC CAM400
21 TP403
21 CAM_VSYNC
22 R428
22 CAM_PCLK TP401
23 23
24 R429
24 CAM_MCLK
25 25
26 26
27 27
28 C410 C411
28
29
TAC401

29 C412
30 30
31 31
C413 C414
32 32

2M CAM FF
MOT501
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

MOT500

TP305
R419
C422
C524

R521 R520 C412 C410

U503

R329

TP_DDR_A300 R439 C411

C538

R327 C365 R321 R322 C404

C342

C522 C403 C402

Q300
R429

R334

L512
C300
C523
R300

C414
UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-28
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.
 Level 3 Repair

8-3-13. Motor

Motor does not work

Yes

Yes
Motor FPCB is damaged? Replace Motor FPCB

No

Check the voltage No

C524 > 3.0V Resolder or replace UCP300

Yes

Replace the board

Yes

END

8-29
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.
Level 3 Repair

VBAT

MOT500
MOT501

1
1

2
2
3
3

MOT500
1
VIB_CTRL 1

2
C538 C524 2
3 3

R419

C422
C524
R521 R520 C412
MOT501

U503
R439

C538
C522

MOT
L512

C523
VMEM_DCDC_1.8V VDD_TSP_1.8V VDD_SD1_1V8
VDD_IO_HIGH_2.8V

C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306
VDD_IO_LOW_1.8V
C304
C301

C302

C303
C309
C310

VDD1P2
VDD_IO_LOW_1.8V
VDD_SD_3.0V
VDDCORE VBAT_AP
VIB_CTRL

TP305
C320

TP_DDR_A300

C342
C326
C337

C338

C339

C340

VBAT_AP
AVDDVBOVBBD_2.5V C300
C343
C342

R300
UCP300
C355

L300

L301
C353

C369
C328
AE21
AE18
AE15
R18

R17

R20

AE5
AE6

AC1
AC2

AD2
U18

N17

U20

C10
V17
V18

P18

P17

V20

V15

AB1
AB2

AB3

A10
B10
T18

T17

T20
J10

J11
J12

J17

W1

W2

U2
U3

D2
V5
V6

E1

V1
V2

V3
T1
T3

T2
J2

C332
VDD25_EFUSE
VDD1P2
VDD1P2

VMEM
VDD1P2

VIO_2

VIO_1

VSIM2

VSIM3

VDDSD1
VDDSD0
VMEM
VMEM

VMEM
VDD_D

VDD_D
VDD_D

VDD_D

VIO_2

VIO_1

VIO_0
VIO_0
VIO_0

AVDD36_1
VNF

VCMPA
VDDAO
VCAM

VFB_ARM
VLCD

VIBR

VBATD
VBATD
AVDDVBO

LX

VFB
KPLED

VBATD
Lx

VBATPA1
VBATPA1

VBATPA1
VBATBUCK

VBATBUCK
VBATBUCK
VBATBUCK

VBATBUCK

Lx_ARM

Lx_ARM

C325
C353

C348

UCP300
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-30
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.
 Level 3 Repair

8-3-14. GSM900 RX

NORMAL CONDITION
catch the channel?

No

Trouble occurs only in NO

GSM900 band? Try 8-3-3 Repair procedure

Yes

Check C111,C113,L102
Yes
for any damage (crack, CHECK soldered components
open, etc) C111,C113,L102

No

Check U101 Yes Resolder or change

for any damage (crack,
U101
open, etc)

No

Check UCP300 for any

Yes Resolder or change
damage (crack, open,
UCP300
etc)

No

Change the board

END

8-31
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.
Level 3 Repair

VBAT
ANT100 ANT101
1 1 RFS100
1 1
2 2
2 2

G
G

1 C
A
4
3
2
C100 L110

C104
L111 C101
C102
C103

L109 L100

F101
C109 C110
C119
DCS_RX_N 6 OUT
7 OUT
IN 1
L106 8 OUT
C117
DCS_RX_P 9 OUT
G
G
G
G
G
C114 L105
5
4
3
2
10
PCS_RX_P

26
3
VBATT 4

ANT
VBATT
L104
10
C116 TX_HB_IN
17
PCS_RX_N 1005
TXEN
9 U100 16
TX_LB_IN VRAMP
11
C107 VSW_EN
12
GSM850_RX_N BS
13
F100 RSVD
L101 19 RX1 RSVD 14
21 18
C108 RX2 RSVD
6 C112 20
GSM850_RX_P OUT RSVD
7 OUT 24
G
C111 23
GSM_RX_N IN 1 G
8 OUT
L102

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
9 OUT
G
G
G
G
G

1
2
5
6
7
8
15
22
25
27
28
29
30
31
32
33
34
35
36
37

39
40
41
42
43
44
38
C113 L103
10
5
4
3
2

GSM_RX_P

L107
DCS/PCS_TX C122
GSM850/900_TX 1005

C123 C124
C125 C126 BS TX_Module
VDD_RF0_2.85V
C127

VDD_RX

VDD_SYN VCC_DIG VCC_TX VDD_RX VCC_TX

VDD_SYN

L108
C130
C12 9
C128

VCC_DIG
C13 2
C131

H3

C9

D8
F8

F9

A4

B4
J3

VDD_TX

VDD_RX
VDD_DIG
VDD_BB

VDD_DCXO

VDD_RXLO
VDD_TXLO
VDD_SYNTH

H4
TRX1_I+ GSM_IP
J4
TRX1_I- GSM_IN
A3 H5
GSM_RX_P LB1_RX+ TRX1_Q+ GSM_QP
A2 J5
GSM_RX_N LB1_RX- TRX1_Q- GSM_QN
A1 H6
GSM850_RX_P LB2_RX+ NC
B1 J6
GSM850_RX_N LB2_RX- NC
H7
NC
C1 J7
PCS_RX_N HB1_RX+ NC
D1
PCS_RX_P HB1_RX- C133
E1 G9
DCS_RX_P HB2_RX+ REF1_OUT D_REF_CLK_26M
F1 G8
DCS_RX_N HB2_RX- REF2_OUT
E6
U101 REF3_OUT
G1 J9
NC REF_IN+
H1 J8 3
NC REF_IN- 4
J1
NC
J2 H9 2 1
NC REF1_EN

A5
REF2_EN
H8

D5
OSC100
GSM850/900_TX LB1HB1_TX REF3_EN
A6
DCS/PCS_TX LB2HB2_TX
E8
SPI1_LE RF_SPI_LE
A7 E9
NC SPI1_CLK RF_SPI_CLK
A8 D9
NC SPI1_DATA RF_SPI_DATA
A9
NC
F5
NC
E4
GND
E5
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
NC

NC
NC
G2
C8

C2
D2

H2
D4
D6
E2
B9

B2
B3
B5
B6
B7
B8

F2

F4
F6
1
2

8-32
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.
 Level 3 Repair

C328

C356

C321

C314

C335
C332

R101

C118

C127

C120

L107

C124

C122

C123
C325

C334

C125

C126
C353
C360

C323
C348
C361

U100
C301

R427

V402
C305

C329

C302

C327

C333

C362

C336

C322

C121
C304

TP307

C110
C303

C109
C115

L105

C132 L108 C131

OSC100

C112
L106

C119
F101

L103
C117

RFS100
L104

C103
C114
L100
C116
U101
C102
L101

C133 C107
F100

L109
C108
C128

C129

C130

L102

C111

C113
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

TP305

TP_DDR_A300
C342

C300
R300

UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-33
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.
Level 3 Repair

8-3-15. GSM850 RX

NORMAL CONDITION
catch the channel?

No

Trouble occurs only in NO

GSM900 band? Try 8-3-3 Repair procedure

Yes

Check C107,C108,L101
Yes
for any damage (crack, CHECK soldered components
open, etc) C107,C108,L101

No

Check U101 Yes Resolder or change

for any damage (crack,
U101
open, etc)

No

Check UCP300 for any

Yes Resolder or change
damage (crack, open,
UCP300
etc)

No

Change the board

END

8-34
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.
 Level 3 Repair

VBAT
ANT100 ANT101
1 1 RFS100
1 1
2 2
2 2

G
G

1 C
A
4
3
2
C100 L110

C104
L111 C101
C102
C103

L109 L100

F101
C109 C110
C119
DCS_RX_N 6 OUT
7 OUT
IN 1
L106 8 OUT
C117
DCS_RX_P 9 OUT
G
G
G
G
G
C114 L105
5
4
3
2
10
PCS_RX_P

26
3
VBATT 4

ANT
VBATT
L104
10
C116 TX_HB_IN
17
PCS_RX_N 1005
TXEN
9 U100 16
TX_LB_IN VRAMP
11
C107 VSW_EN
12
GSM850_RX_N BS
13
F100 RSVD
L101 19 RX1 RSVD 14
21 18
C108 RX2 RSVD
6 C112 20
GSM850_RX_P OUT RSVD
7 OUT 24
G
C111 23
GSM_RX_N IN 1 G
8 OUT
L102

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
9 OUT
G
G
G
G
G

1
2
5
6
7
8
15
22
25
27
28
29
30
31
32
33
34
35
36
37

39
40
41
42
43
44
38
C113 L103
10
5
4
3
2

GSM_RX_P

L107
DCS/PCS_TX C122
GSM850/900_TX 1005

C123 C124
C125 C126 BS TX_Module
VDD_RF0_2.85V
C127

VDD_RX

VDD_SYN VCC_DIG VCC_TX VDD_RX VCC_TX

VDD_SYN

L108
C130
C12 9
C128

VCC_DIG
C13 2
C131

H3

C9

D8
F8

F9

A4

B4
J3

VDD_TX

VDD_RX
VDD_DIG
VDD_BB

VDD_DCXO

VDD_RXLO
VDD_TXLO
VDD_SYNTH

H4
TRX1_I+ GSM_IP
J4
TRX1_I- GSM_IN
A3 H5
GSM_RX_P LB1_RX+ TRX1_Q+ GSM_QP
A2 J5
GSM_RX_N LB1_RX- TRX1_Q- GSM_QN
A1 H6
GSM850_RX_P LB2_RX+ NC
B1 J6
GSM850_RX_N LB2_RX- NC
H7
NC
C1 J7
PCS_RX_N HB1_RX+ NC
D1
PCS_RX_P HB1_RX- C133
E1 G9
DCS_RX_P HB2_RX+ REF1_OUT D_REF_CLK_26M
F1 G8
DCS_RX_N HB2_RX- REF2_OUT
E6
U101 REF3_OUT
G1 J9
NC REF_IN+
H1 J8 3
NC REF_IN- 4
J1
NC
J2 H9 2 1
NC REF1_EN

A5
REF2_EN
H8

D5
OSC100
GSM850/900_TX LB1HB1_TX REF3_EN
A6
DCS/PCS_TX LB2HB2_TX
E8
SPI1_LE RF_SPI_LE
A7 E9
NC SPI1_CLK RF_SPI_CLK
A8 D9
NC SPI1_DATA RF_SPI_DATA
A9
NC
F5
NC
E4
GND
E5
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
NC

NC
NC
G2
C8

C2
D2

H2
D4
D6
E2
B9

B2
B3
B5
B6
B7
B8

F2

F4
F6
1
2

8-35
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.
Level 3 Repair

C328

C356

C321

C314

C335
C332

R101

C118

C127

C120

L107

C124

C122

C123
C325

C334

C125

C126
C353
C360

C323
C348
C361

U100
C301

R427

V402
C305

C329

C302

C327

C333

C362

C336

C322

C121
C304

TP307

C110
C303

C109
C115

L105

C132 L108 C131

OSC100

C112
L106

C119
F101

L103
C117

RFS100
L104

C103
C114
L100
C116
U101
C102
L101

C133 C107
F100

L109
C108
C128

C129

C130

L102

C111

C113
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

TP305

TP_DDR_A300
C342

C300
R300

UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-36
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.
 Level 3 Repair

8-3-16. GSM850 RX

NORMAL CONDITION
catch the channel?

No

Trouble occurs only in NO

GSM850 band? Try 8-3-3 Repair procedure

Yes

Check C107,C108,L101
Yes
for any damage (crack, CHECK soldered components
open, etc) C107,C108,L101

No

Check U101 Yes Resolder or change

for any damage (crack,
U101
open, etc)

No

Check UCP300 for any

Yes Resolder or change
damage (crack, open,
UCP300
etc)

No

Change the board

END

8-37
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.
Level 3 Repair

VBAT
ANT100 ANT101
1 1 RFS100
1 1
2 2
2 2

G
G

1 C
A
4
3
2
C100 L110

C104
L111 C101
C102
C103

L109 L100

F101
C109 C110
C119
DCS_RX_N 6 OUT
7 OUT
IN 1
L106 8 OUT
C117
DCS_RX_P 9 OUT
G
G
G
G
G
C114 L105
5
4
3
2
10
PCS_RX_P

26
3
VBATT 4

ANT
VBATT
L104
10
C116 TX_HB_IN
17
PCS_RX_N 1005
TXEN
9 U100 16
TX_LB_IN VRAMP
11
C107 VSW_EN
12
GSM850_RX_N BS
13
F100 RSVD
L101 19 RX1 RSVD 14
21 18
C108 RX2 RSVD
6 C112 20
GSM850_RX_P OUT RSVD
7 OUT 24
G
C111 23
GSM_RX_N IN 1 G
8 OUT
L102

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
9 OUT
G
G
G
G
G

1
2
5
6
7
8
15
22
25
27
28
29
30
31
32
33
34
35
36
37

39
40
41
42
43
44
38
C113 L103
10
5
4
3
2

GSM_RX_P

L107
DCS/PCS_TX C122
GSM850/900_TX 1005

C123 C124
C125 C126 BS TX_Module
VDD_RF0_2.85V
C127

VDD_RX

VDD_SYN VCC_DIG VCC_TX VDD_RX VCC_TX

VDD_SYN

L108
C130
C12 9
C128

VCC_DIG
C13 2
C131

H3

C9

D8
F8

F9

A4

B4
J3

VDD_TX

VDD_RX
VDD_DIG
VDD_BB

VDD_DCXO

VDD_RXLO
VDD_TXLO
VDD_SYNTH

H4
TRX1_I+ GSM_IP
J4
TRX1_I- GSM_IN
A3 H5
GSM_RX_P LB1_RX+ TRX1_Q+ GSM_QP
A2 J5
GSM_RX_N LB1_RX- TRX1_Q- GSM_QN
A1 H6
GSM850_RX_P LB2_RX+ NC
B1 J6
GSM850_RX_N LB2_RX- NC
H7
NC
C1 J7
PCS_RX_N HB1_RX+ NC
D1
PCS_RX_P HB1_RX- C133
E1 G9
DCS_RX_P HB2_RX+ REF1_OUT D_REF_CLK_26M
F1 G8
DCS_RX_N HB2_RX- REF2_OUT
E6
U101 REF3_OUT
G1 J9
NC REF_IN+
H1 J8 3
NC REF_IN- 4
J1
NC
J2 H9 2 1
NC REF1_EN

A5
REF2_EN
H8

D5
OSC100
GSM850/900_TX LB1HB1_TX REF3_EN
A6
DCS/PCS_TX LB2HB2_TX
E8
SPI1_LE RF_SPI_LE
A7 E9
NC SPI1_CLK RF_SPI_CLK
A8 D9
NC SPI1_DATA RF_SPI_DATA
A9
NC
F5
NC
E4
GND
E5
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
NC

NC
NC
G2
C8

C2
D2

H2
D4
D6
E2
B9

B2
B3
B5
B6
B7
B8

F2

F4
F6
1
2

8-38
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.
 Level 3 Repair

C328

C356

C321

C314

C335
C332

R101

C118

C127

C120

L107

C124

C122

C123
C325

C334

C125

C126
C353
C360

C323
C348
C361

U100
C301

R427

V402
C305

C329

C302

C327

C333

C362

C336

C322

C121
C304

TP307

C110
C303

C109
C115

L105

C132 L108 C131

OSC100

C112
L106

C119
F101

L103
C117

RFS100
L104

C103
C114
L100
C116
U101
C102
L101

C133 C107
F100

L109
C108
C128

C129

C130

L102

C111

C113
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

TP305

TP_DDR_A300
C342

C300
R300

UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-39
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.
Level 3 Repair

8-3-17. DCS1800 RX

NORMAL CONDITION
catch the channel?

No

Trouble occurs only in NO

DCS1800 band? Try 8-3-3 Repair procedure

Yes

Check C119,C117,L106
Yes
for any damage (crack, CHECK soldered components
open, etc) C119,C117,L106

No

Check U101 Yes Resolder or change

for any damage (crack,
U101
open, etc)

No

Check UCP300 for any

Yes Resolder or change
damage (crack, open,
UCP300
etc)

No

Change the board

END

8-40
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.
 Level 3 Repair

VBAT
ANT100 ANT101
1 1 RFS100
1 1
2 2
2 2

G
G

1 C
A
4
3
2
C100 L110

C104
L111 C101
C102
C103

L109 L100

F101
C109 C110
C119
DCS_RX_N 6 OUT
7 OUT
IN 1
L106 8 OUT
C117
DCS_RX_P 9 OUT
G
G
G
G
G
C114 L105
5
4
3
2
10
PCS_RX_P

26
3
VBATT 4

ANT
VBATT
L104
10
C116 TX_HB_IN
17
PCS_RX_N 1005
TXEN
9 U100 16
TX_LB_IN VRAMP
11
C107 VSW_EN
12
GSM850_RX_N BS
13
F100 RSVD
L101 19 RX1 RSVD 14
21 18
C108 RX2 RSVD
6 C112 20
GSM850_RX_P OUT RSVD
7 OUT 24
G
C111 23
GSM_RX_N IN 1 G
8 OUT
L102

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
9 OUT
G
G
G
G
G

1
2
5
6
7
8
15
22
25
27
28
29
30
31
32
33
34
35
36
37

39
40
41
42
43
44
38
C113 L103
10
5
4
3
2

GSM_RX_P

L107
DCS/PCS_TX C122
GSM850/900_TX 1005

C123 C124
C125 C126 BS TX_Module
VDD_RF0_2.85V
C127

VDD_RX

VDD_SYN VCC_DIG VCC_TX VDD_RX VCC_TX

VDD_SYN

L108
C130
C12 9
C128

VCC_DIG
C13 2
C131

H3

C9

D8
F8

F9

A4

B4
J3

VDD_TX

VDD_RX
VDD_DIG
VDD_BB

VDD_DCXO

VDD_RXLO
VDD_TXLO
VDD_SYNTH

H4
TRX1_I+ GSM_IP
J4
TRX1_I- GSM_IN
A3 H5
GSM_RX_P LB1_RX+ TRX1_Q+ GSM_QP
A2 J5
GSM_RX_N LB1_RX- TRX1_Q- GSM_QN
A1 H6
GSM850_RX_P LB2_RX+ NC
B1 J6
GSM850_RX_N LB2_RX- NC
H7
NC
C1 J7
PCS_RX_N HB1_RX+ NC
D1
PCS_RX_P HB1_RX- C133
E1 G9
DCS_RX_P HB2_RX+ REF1_OUT D_REF_CLK_26M
F1 G8
DCS_RX_N HB2_RX- REF2_OUT
E6
U101 REF3_OUT
G1 J9
NC REF_IN+
H1 J8 3
NC REF_IN- 4
J1
NC
J2 H9 2 1
NC REF1_EN

A5
REF2_EN
H8

D5
OSC100
GSM850/900_TX LB1HB1_TX REF3_EN
A6
DCS/PCS_TX LB2HB2_TX
E8
SPI1_LE RF_SPI_LE
A7 E9
NC SPI1_CLK RF_SPI_CLK
A8 D9
NC SPI1_DATA RF_SPI_DATA
A9
NC
F5
NC
E4
GND
E5
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
NC

NC
NC
G2
C8

C2
D2

H2
D4
D6
E2
B9

B2
B3
B5
B6
B7
B8

F2

F4
F6
1
2

8-41
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.
Level 3 Repair

C328

C356

C321

C314

C335
C332

R101

C118

C127

C120

L107

C124

C122

C123
C325

C334

C125

C126
C353
C360

C323
C348
C361

U100
C301

R427

V402
C305

C329

C302

C327

C333

C362

C336

C322

C121
C304

TP307

C110
C303

C109
C115

L105

C132 L108 C131

OSC100

C112
L106

C119
F101

L103
C117

RFS100
L104

C103
C114
L100
C116
U101
C102
L101

C133 C107
F100

L109
C108
C128

C129

C130

L102

C111

C113
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

TP305

TP_DDR_A300
C342

C300
R300

UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-42
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.
 Level 3 Repair

8-3-18. PCS1900 RX

NORMAL CONDITION
catch the channel?

No

Trouble occurs only in NO

PCS1900 band? Try 8-3-3 Repair procedure

Yes

Check C114,C116,L104
Yes
for any damage (crack, CHECK soldered components
open, etc) C114,C116,L104

No

Check U101 Yes Resolder or change

for any damage (crack,
U101
open, etc)

No

Check UCP300 for any

Yes Resolder or change
damage (crack, open,
UCP300
etc)

No

Change the board

END

8-43
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.
Level 3 Repair

VBAT
ANT100 ANT101
1 1 RFS100
1 1
2 2
2 2

G
G

1 C
A
4
3
2
C100 L110

C104
L111 C101
C102
C103

L109 L100

F101
C109 C110
C119
DCS_RX_N 6 OUT
7 OUT
IN 1
L106 8 OUT
C117
DCS_RX_P 9 OUT
G
G
G
G
G
C114 L105
5
4
3
2
10
PCS_RX_P

26
3
VBATT 4

ANT
VBATT
L104
10
C116 TX_HB_IN
17
PCS_RX_N 1005
TXEN
9 U100 16
TX_LB_IN VRAMP
11
C107 VSW_EN
12
GSM850_RX_N BS
13
F100 RSVD
L101 19 RX1 RSVD 14
21 18
C108 RX2 RSVD
6 C112 20
GSM850_RX_P OUT RSVD
7 OUT 24
G
C111 23
GSM_RX_N IN 1 G
8 OUT
L102

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
9 OUT
G
G
G
G
G

1
2
5
6
7
8
15
22
25
27
28
29
30
31
32
33
34
35
36
37

39
40
41
42
43
44
38
C113 L103
10
5
4
3
2

GSM_RX_P

L107
DCS/PCS_TX C122
GSM850/900_TX 1005

C123 C124
C125 C126 BS TX_Module
VDD_RF0_2.85V
C127

VDD_RX

VDD_SYN VCC_DIG VCC_TX VDD_RX VCC_TX

VDD_SYN

L108
C130
C12 9
C128

VCC_DIG
C13 2
C131

H3

C9

D8
F8

F9

A4

B4
J3

VDD_TX

VDD_RX
VDD_DIG
VDD_BB

VDD_DCXO

VDD_RXLO
VDD_TXLO
VDD_SYNTH

H4
TRX1_I+ GSM_IP
J4
TRX1_I- GSM_IN
A3 H5
GSM_RX_P LB1_RX+ TRX1_Q+ GSM_QP
A2 J5
GSM_RX_N LB1_RX- TRX1_Q- GSM_QN
A1 H6
GSM850_RX_P LB2_RX+ NC
B1 J6
GSM850_RX_N LB2_RX- NC
H7
NC
C1 J7
PCS_RX_N HB1_RX+ NC
D1
PCS_RX_P HB1_RX- C133
E1 G9
DCS_RX_P HB2_RX+ REF1_OUT D_REF_CLK_26M
F1 G8
DCS_RX_N HB2_RX- REF2_OUT
E6
U101 REF3_OUT
G1 J9
NC REF_IN+
H1 J8 3
NC REF_IN- 4
J1
NC
J2 H9 2 1
NC REF1_EN

A5
REF2_EN
H8

D5
OSC100
GSM850/900_TX LB1HB1_TX REF3_EN
A6
DCS/PCS_TX LB2HB2_TX
E8
SPI1_LE RF_SPI_LE
A7 E9
NC SPI1_CLK RF_SPI_CLK
A8 D9
NC SPI1_DATA RF_SPI_DATA
A9
NC
F5
NC
E4
GND
E5
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
NC

NC
NC
G2
C8

C2
D2

H2
D4
D6
E2
B9

B2
B3
B5
B6
B7
B8

F2

F4
F6
1
2

8-44
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.
 Level 3 Repair

C328

C356

C321

C314

C335
C332

R101

C118

C127

C120

L107

C124

C122

C123
C325

C334

C125

C126
C353
C360

C323
C348
C361

U100
C301

R427

V402
C305

C329

C302

C327

C333

C362

C336

C322

C121
C304

TP307

C110
C303

C109
C115

L105

C132 L108 C131

OSC100

C112
L106

C119
F101

L103
C117

RFS100
L104

C103
C114
L100
C116
U101
C102
L101

C133 C107
F100

L109
C108
C128

C129

C130

L102

C111

C113
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

TP305

TP_DDR_A300
C342

C300
R300

UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-45
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.
Level 3 Repair

8-3-19. GSM850/900 TX
**If you check the TX chain,
Check the not only RF Device but also resistor, inductor and capacitor.

NORMAL CONDITION
catch the channel?

No

Trouble occurs only in NO

2G band? Try 8-3-3 Repair procedure

Yes

Check C122 soldering

Yes CHECK soldered components
condition for any damage
(crack, open, etc) C122

No

Check U100 or U101 for

any damage (crack, open, Yes Resolder or change
U100 or U101
etc)

No

Change the board

END

8-46
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.
 Level 3 Repair

VBAT
ANT100 ANT101
1 1 RFS100
1 1
2 2
2 2

G
G

1 C
A
4
3
2
C100 L110

C104
L111 C101
C102
C103

L109 L100

F101
C109 C110
C119
DCS_RX_N 6 OUT
7 OUT
IN 1
L106 8 OUT
C117
DCS_RX_P 9 OUT G
G
G
G
G
C114 5 L105
4
3
2
10

PCS_RX_P

26
3
VBATT 4

ANT
VBATT
L104
10
C116 TX_HB_IN
PCS_RX_N 1005
TXEN 17
9 U100 16
TX_LB_IN VRAMP
11
C107 VSW_EN
12
GSM850_RX_N BS
13
F100 RSVD
L101 19 14
RX1 RSVD
21 18
C108 RX2 RSVD
6 C112 20
GSM850_RX_P OUT RSVD
7 OUT 24
G
C111 23
GSM_RX_N IN 1 G
8 OUT
L102

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
9 OUT
G
G
G
G
G

1
2
5
6
7
8
15
22
25
27
28
29
30
31
32
33
34
35
36
37

39
40
41
42
43
44
38
C113 L103
10
5
4
3
2

GSM_RX_P

L107
DCS/PCS_TX C122
GSM850/900_TX 1005

C123 C124
C125 C126 BS TX_Module
VDD_RF0_2.85V
C127

VDD_RX

VDD_SYN VCC_DIG VCC_TX VDD_RX VCC_TX

VDD_SYN

L108
C130
C12 9
C128

VCC_DIG
C13 2
C131

H3

C9

D8
F8

F9

A4

B4
J3

VDD_TX

VDD_RX
VDD_DIG
VDD_BB

VDD_DCXO

VDD_RXLO
VDD_TXLO
VDD_SYNTH

H4
TRX1_I+ GSM_IP
J4
TRX1_I- GSM_IN
A3 H5
GSM_RX_P LB1_RX+ TRX1_Q+ GSM_QP
A2 J5
GSM_RX_N LB1_RX- TRX1_Q- GSM_QN
A1 H6
GSM850_RX_P LB2_RX+ NC
B1 J6
GSM850_RX_N LB2_RX- NC
H7
NC
C1 J7
PCS_RX_N HB1_RX+ NC
D1
PCS_RX_P HB1_RX- C133
E1 G9
DCS_RX_P HB2_RX+ REF1_OUT D_REF_CLK_26M
F1 G8
DCS_RX_N HB2_RX- REF2_OUT
E6
U101 REF3_OUT
G1 J9
NC REF_IN+
H1 J8 3
NC REF_IN- 4
J1
NC
J2 H9 2 1
NC REF1_EN

A5
REF2_EN
H8

D5
OSC100
GSM850/900_TX LB1HB1_TX REF3_EN
A6
DCS/PCS_TX LB2HB2_TX
E8
SPI1_LE RF_SPI_LE
A7 E9
NC SPI1_CLK RF_SPI_CLK
A8 D9
NC SPI1_DATA RF_SPI_DATA
A9
NC
F5
NC
E4
GND
E5
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
NC

NC
NC
G2
C8

C2
D2

H2
D4
D6
E2
B9

B2
B3
B5
B6
B7
B8

F2

F4
F6
1
2

8-47
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.
Level 3 Repair

C328

C356

C321

C314

C335
C332

R101

C118

C127

C120

L107

C124

C122

C123
C325

C334

C125

C126
C353
C360

C323
C348
C361

U100
C301

R427

V402
C305

C329

C302

C327

C333

C362

C336

C322

C121
C304

TP307

C110
C303

C109
C115

L105

C132 L108 C131

OSC100

C112
L106

C119
F101

L103
C117

RFS100
L104

C103
C114
L100
C116
U101
C102
L101

C133 C107
F100

L109
C108
C128

C129

C130

L102

C111

C113
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

TP305

TP_DDR_A300
C342

C300
R300

UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-48
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.
 Level 3 Repair

8-3-20. DCS1800/PCS1900 TX
**If you check the TX chain,
Check the not only RF Device but also resistor, inductor and capacitor.

NORMAL CONDITION
catch the channel?

No

Trouble occurs only in NO

2G band? Try 8-3-3 Repair procedure

Yes

Check L107 soldering

Yes CHECK soldered components
condition for any damage
(crack, open, etc) L107

No

Check U100 or U101 for

any damage (crack, open, Yes Resolder or change
U100 or U101
etc)

No

Change the board

END

8-49
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.
Level 3 Repair

VBAT
ANT100 ANT101
1 1 RFS100
1 1
2 2
2 2

G
G

1 C
A
4
3
2
C100 L110

C104
L111 C101
C102
C103

L109 L100

F101
C109 C110
C119
DCS_RX_N 6 OUT
7 OUT
IN 1
L106 8 OUT
C117
DCS_RX_P 9 OUT G
G
G
G
G
C114 5 L105
4
3
2
10

PCS_RX_P

26
3
VBATT 4

ANT
VBATT
L104
10
C116 TX_HB_IN
PCS_RX_N 1005
TXEN 17
9 U100 16
TX_LB_IN VRAMP
11
C107 VSW_EN
12
GSM850_RX_N BS
13
F100 RSVD
L101 19 14
RX1 RSVD
21 18
C108 RX2 RSVD
6 C112 20
GSM850_RX_P OUT RSVD
7 OUT 24
G
C111 23
GSM_RX_N IN 1 G
8 OUT
L102

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
9 OUT
G
G
G
G
G

1
2
5
6
7
8
15
22
25
27
28
29
30
31
32
33
34
35
36
37

39
40
41
42
43
44
38
C113 L103
10
5
4
3
2

GSM_RX_P

L107
DCS/PCS_TX C122
GSM850/900_TX 1005

C123 C124
C125 C126 BS TX_Module
VDD_RF0_2.85V
C127

VDD_RX

VDD_SYN VCC_DIG VCC_TX VDD_RX VCC_TX

VDD_SYN

L108
C130
C12 9
C128

VCC_DIG
C13 2
C131

H3

C9

D8
F8

F9

A4

B4
J3

VDD_TX

VDD_RX
VDD_DIG
VDD_BB

VDD_DCXO

VDD_RXLO
VDD_TXLO
VDD_SYNTH

H4
TRX1_I+ GSM_IP
J4
TRX1_I- GSM_IN
A3 H5
GSM_RX_P LB1_RX+ TRX1_Q+ GSM_QP
A2 J5
GSM_RX_N LB1_RX- TRX1_Q- GSM_QN
A1 H6
GSM850_RX_P LB2_RX+ NC
B1 J6
GSM850_RX_N LB2_RX- NC
H7
NC
C1 J7
PCS_RX_N HB1_RX+ NC
D1
PCS_RX_P HB1_RX- C133
E1 G9
DCS_RX_P HB2_RX+ REF1_OUT D_REF_CLK_26M
F1 G8
DCS_RX_N HB2_RX- REF2_OUT
E6
U101 REF3_OUT
G1 J9
NC REF_IN+
H1 J8 3
NC REF_IN- 4
J1
NC
J2 H9 2 1
NC REF1_EN

A5
REF2_EN
H8

D5
OSC100
GSM850/900_TX LB1HB1_TX REF3_EN
A6
DCS/PCS_TX LB2HB2_TX
E8
SPI1_LE RF_SPI_LE
A7 E9
NC SPI1_CLK RF_SPI_CLK
A8 D9
NC SPI1_DATA RF_SPI_DATA
A9
NC
F5
NC
E4
GND
E5
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC
NC

NC
NC
G2
C8

C2
D2

H2
D4
D6
E2
B9

B2
B3
B5
B6
B7
B8

F2

F4
F6
1
2

8-50
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.
 Level 3 Repair

C328

C356

C321

C314

C335
C332

R101

C118

C127

C120

L107

C124

C122

C123
C325

C334

C125

C126
C353
C360

C323
C348
C361

U100
C301

R427

V402
C305

C329

C302

C327

C333

C362

C336

C322

C121
C304

TP307

C110
C303

C109
C115

L105

C132 L108 C131

OSC100

C112
L106

C119
F101

L103
C117

RFS100
L104

C103
C114
L100
C116
U101
C102
L101

C133 C107
F100

L109
C108
C128

C129

C130

L102

C111

C113
C312
R316
C339
C331
R317
C315
R330
C340
C330
R315
C318
C319
C316
C317
R203
C310
C307
C306

TP305

TP_DDR_A300
C342

C300
R300

UCP300

C369
C328
C332
C325
C353

C348
C363
R318
R410
R409
C308
C337
C338

C301
C305
C329
C302

C327
C333
C362
C336
C322
R411
R438

8-51
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.
Level 3 Repair

8-3-21. NC POINT

UCP300 TOP VIEW - SC8820ES

↘ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
A ● ● ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ● ●
B ● ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ●
C ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
D ○ ○ ○ ○ ○ ○
E ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
F ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
G ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
H ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
J ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
K ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
L ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
M ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
N ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
P ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
R ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
T ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
U ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
V ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
W ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Y ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
AA ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
AB ○ ○ ○ ○ ○ ○
AC ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
AD ● ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ●
AE ● ● ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ● ●

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