Samsung SM-J105B service manual TSHOO

8. Level 3 Repair

8-1. Components Layout

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8. Level 3 Repair

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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. Level 3 Repair

8-2. Block Diagram

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8. Level 3 Repair

TOP

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ANT200

TP603

TP602

TP601

TP600

C608
C609

C610

ZD504

L504

ZD500

R509

R336

C503

EAR500

CD500

ZD520 ZD521 ZD522

ZD517ZD518 ZD519

ZD516

ANT500

ANT501

R500

C521

L502

C501

R512

ZD502

L506

CAM601

TP608 TP609

C615

U601

C616

OSC200

C225

C245

C229

C523

C518

R528

R530

R520

R525 R526

C517

ZD514 ZD515

C400

R529

TH400

R531R533

C612

TAC502

C506

R513

C210

L202

C253

C213

C208

L200

HDC600

C611

R603

L606

R607

C607

L514

C530

ZD509

ZD508

C522

L513

R335

R511

ZD505

L507

TP610 TP611

R611

R612

TP_ACC_INT

L512

C524

ZD507

C505

R400

R403

C509

C507

ZD506

ZD513

C618

R516

R517

L603

CAM600

L500

C500

ZD503

ZD512

L503

C617

L515

C531

ZD511

R514

C511

C613 C614

C502

R510

C619

L508

C504

C510

L501

TP_STBY

TP605

TP606

ANT400 ANT401

C513

R519

R503

C235

L207

U202

C232

L205

C231

SPK500

R431

D400

R429

C443

R502

R501

C512

R507

C515

ANT201

L201

L208

C237

C236

F202

C234

TAC500TAC501

C240

TP604

TP607

C508

L505

R505

L516

R504

C255

L211

L212

C254

C220

C216

C219

C202

C203

C200

R205

C247

R204

C249

C248

C252

C224

R1015

TH1000

R1012

C1083C1085

C1066

C1067

U1000

L1019

L1005

L1018

C1007

C1011

C1057

L1003

F1003

C1019

C1006

C1005

PAM1001

L1035

L1001

C1047

C1098

L204

C221

TP_GPS_RST

U201

C246

C1088

L1021

RFS1000

L1000

C243

F203

L210

C241

C242

C214
C215

C217

C218

TP210 TP212

TP206 TP208

R202

TP_GPS_CTS

TP_GPS_RTS

L209

TP_GPS_EN

TP_GPS_RXD TP_GPS_TXD

C233

F201

L206

C239

C251

C250

C1064

C1062

C1065

C1063

R1025

TP_SPI_CLK

C1070

C1071

C1079

TP_SPI_LE

TP_SPI_DATA

C1078

R1013

C1086

C1087

C1089

R1022

R1019

R1023

PAM1003

R1017

L1028

C1077

L1026

L1011

L1015

L1027

C1023

C1037

C1031

C1032

C1076

C1081

C1028

C1036

L1025

F1002

L1024

L1017

L1012

F1004

C1060

C1051

C1029

L1023

C1052

L1029

C1017

C1018

C1016

C1040

C1041

C1042

C1043

C1044

R1006

C1015

C1026

C1010

C1014

C1002C1003

C347

C355

OSC300

R402

R329

R401

R331

C343
C312

C374

C310
C303

R308

C1072

C338

TH401

C319

C1073

C1075

C321

C1074

R303

C322

R334

R320

R332

R321

C337

R301

R306

R305

R315

R300

R316

R317

R302

R307

C526

C528

R537

C424

C423

C420

R411

R407

R406

C379

R410

C1096

R416

L1008

C429

C1013

L1006

C431

R415

R408

R412

R409

R413

C426

C425

R414

R508

R515

ZD501

ZD523

C377

C315

C361 C362

C311

C308

R330

C307

C381

UME400

R423

C405 C406

C411

C412

R319

R323

C314

C380

C342

C305

C348

C369

R326

C354

C368

C367

C372

UCP300

TP_DQS_C TP_DQS_T

TP_DM

C421

C422

R405

SIM500SIM501

C325
C345
C346
C340

R337

R506

C365
C341

C349

C532

R328

C364

R324

C336

R325

C344

C318

C302

C304

C339

C370

R327

C366

L306

C373

C359

C371

TP_CS

TP_CA

TP_CKE

C417

C410

C413

R404

C351

L304

C323

R333

R314

L305

L301

L300

C300

C320

C418
C419
C409

C408

C407

C306

L302

R613

C324

L303

R425

C353

C350
C352

C309

C357

C316

C334

C330

C326

C356

C358

C375

C376

R614

R615

C620

R422

R434

ZD404

ZD406

R435

R436

R427

R606

L602

L400

C451

C452

ZD408

C428

C606

L604

L605

C605

R605

U600

C603

C602

R600

C601

R608

C600

L601

L600

C454

C604

C455

C432 C442

R417

R418

U400

C453

R318

R424

R322

R438

R419

C448

C427

C447

ZD401

R428

R432

C449

R433

R426

R437

C378

C317

C332

C331

C313

C335

C333

R310

C329

C327

C328

TP_RST

R309

U300

R311

ZD400

ZD405

ZD407

ZD402ZD403

R420R421

R430

C301

C360

C363

C416
C415
C414

C403

C404

C401

C402

F600F601F602

TP_SLEEP_CLK

R203

TP_MTDO

TP_MTMS

TP_MTCK

U200

TP_U1TXD

C201

C256

R609
R610

R604

Q600

OSC1000

C1069

C1049

C1068

L1020

C1056

C1050

C1095

L1034

R1014

C1082

C1091

C1061

C1092

C1059

PAM1002

C1058

C1055

C1048

L1014

C1053

C1054

C1030

C1039

L1030

L1010

F1000

F1001

L1007

L1009

L1013

L1004

C1024

C1034

L1033

C1012

C1025

L1016

R1007

PAM1000

C1021

C1022

C1020

C1035

C1045

L1031 L1032

C1097

C1027

C1038

BTC400

C1046

C1004

C1000

R1030

R1026R1027

R1028

ANT1000

C1094

R1029

R535

L510

C527

ZD510

L511

C525

L509

C529

IFC400

BOTH_1000 BOTH_1001

BOTH_1002

L401

ANT1001

TP_UB

TP_GND

R1003

R1004

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. Level 3 Repair

BOTTOM

(VIETMOBILE.VN)

CN401

CN400

JTAG304

CN500

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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

MIC500

8. Level 3 Repair

8-3. Flow Chart of Troubleshooting

Oscilloscope Digital Multimeter

Power Supply + driver, ESD Safe Tweezer

8960 & Spectrum Analyzer Soldering iron

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s o

8. Level 3 Repair

8-4. Power On

Mobile phone does not power on.

Check the Battery

Is it more than 3.8V?

Voltage.

Yes

Power-on the phone,

check the power-on

or motor Vibration.

Check the PWR_KEY

(soldering crack, open,

Check the UCP300

output voltage.

R513 ≒ 1.1V

Check the

Clock OSC1000

Is the frequency

check the initial operation

sound

i

etc)

END

k?

No

Yes

Yes

Yes

Yes

No

Yes

No

No

Charging the battery by TA.

If its voltage level is extremely low(under 3.0V),

Change the battery.

Change the FRONT-LCD ASSY

No

Resolder or replace TAC502

If the output voltage is not satisfied with normal
condition, Change the UCP300

※ voltage level has ±10% margin.

Replace the OSC1000
※ Test condition (Oscilloscope setting)

: 20.0us.div (time division)

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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

)

8. Level 3 Repair

8-4-2. Initial

Initial Failure.

Yes

Re-download latest

SW on the mobile

Re Check "8-4-1 Power on"

Trouble shooting process

Change UCP300

Change PBA

phone.

END

Abnormal

Yes

No

NO

Check the OSC1000 (Crack, open etc.)

Check the UCP300(Crack etc

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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

8. Level 3 Repair

8-4-3. No Service

Check menu setting

Menu → applications → setting → network connections →
more networks → mobile networks → network mode → setting is auto connect ?

Home screen → Phone → Keypad

→ *#1234# → check Phone version
→ CP : J105HXXXX or unknown

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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

No service

Yes

CP : unknown

Check the components of

Antenna Path. Is it ok?

Yes

Check VREF

VREF(C1064, C1065) =

1.8

Yes

Change the PBA

Yes

END

CP : J120HXXXX

Check the Main Antenna exists or not.

No

No

Resolder the components

Replace the OSC1000

8. Level 3 Repair

8-4-4. Sim Part

Insert SIM card

Is SIM socket ok?

Is SIM/SD assy

well connected to

main board?

Check the SIM

Voltage.

C517 >= 1.8V?

END

Yes

Yes

Yes

Yes

No

Reassemble SIM/SD assy and still SIM does not work,

replace SIM/SD assy

No

Change to the new SIM card.
If it doesn`t still work SIM card after changeing
the SIM card, Check the UCP300 (Crack etc)

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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

ging

8. Level 3 Repair

8-4-5. Charging Part

TA / USB Insert

Checking Volt at

C428 = 5V?

Checking Volt at

C300 = 3.3V?

Resolder or

Replace UCP300

and then Check
Char

or not

END

Yes

Yes

Yes

Yes

- First of all, Please check the battery status.

No

No

Reconnect TA or USB

Swap the Sub PBA

Resolder or Replace UCP300

or

No

Check The IC's around UCP300

or

Swap the Main PBA.

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.