Service Manual Samsung Nexus i9023

SAMSUNG Proprietary-Contents may change without notice

8. Level 3 Repair

8-1

This Document can not be used without Samsung's authorization

8-1. Block Diagram


Level 3 Repair

8-2


8a-2. PCB Diagrams8a-2-1. Main Top

BAT500

BOTH300

O TH301

BOTH302

BOTH303

BOTH3 0

BOTH305

BOTH306

BTC500

C203

C204

C207

C208

C213

C215

C220 C221

C223

C224

C225

C227

C300

C301

C302

C303

C304

C305

C306

C307

C308

C309

C310

C311

C312

C313

C314

C315

C316

C317

C318

C319

C320

C321

C322

C323

C324

C325 C326

C327C328

C329

C330

C331

C332

C333

C334

C335

C336

C337

C338

C400

C402

C403

C404

C405

C406

C407

C408

C409

C410

C411

C412

C413

C414

C415

C416

C417

C418

C419

C420

C421C422

C423

C425

C426

C427

C428C429

C430

C500

C540

C600

C601C602

C603

C604

C605

C606

C607

C608

C609

C610

C611

C612

C613

C621

C623

C624

C626

C627

C628

C629

C630

C632

C633

C634

C635

C636

C637

C643

C644

C645 C646

C703

C705

C707

C709

C710

C711

C712C713

C721 C722

C800C801

C802

C803

C807

C808C809 C810

C811

D501

D701

F706

F707 H

DC700

IFC700

J_EXTNRST

J_RTCK

J_RXD

J_TCK

J_TDI

J_TDO

J_TMS

J_TRSTn

J_TXD

L200

L201

L204

L206

L207

L300

L301

L302

L303

L600

L601

L602

L603

L604

L605L606

L607

L608

L609L610

L702

L703

L800

L801

MIC600

OSC200

OSC300

OSC400

PAD800

R104

R300

R301

R302

R303

R304

R305

R306

R307

R308

R309

R310

R311

R312

R313

R314

R315

R316

R317

R319

R320

R321

R322

R323

R324

R325 R327

R328

R329

R400

R401

R402

R403

R404

R410

R414

R415

R416

R417

R418

R419

R420

R422

R423

R424

R426

R427

R428

R429

R430

R431R432R433 R434

R435

R436

R437

R438

R439R440 R441R442

R443

R444

R445

R446

R447

R448

R449

R450

R453

R454

R455

R456

R457

R458

R459

R460

R461

R462

R463

R464

R46 5 R466

R467

R468

R469

R470

R471

R472

R500

R601

R602

R603

R604

R606

R607

R609

R612

R613

R615

R616

R617

R618

R621

R624

R625R627

R628

R629

R701

R704

R711 R712

R800

R802

R803

R808

RESET_OUT

TA505

TA600

TA601

TAC800

TAC801

TAC802

TH300

TP_GPS_CNTL

TP100

TP200

TP201

TP202TP203TP204

TP205 T

P206

TP300

TP301

TP302

TP303

TP400

TP401

TP402

TP403 TP404

TP405

TP406

TP407

TP408

TP409TP410

TP411

TP412

TP417

TP500

TP600

TP800

U201

U202

U300

U301

U302

U303

U304

U400

U600

U602

U603

U606

U608

U704

U705

U800

U801

U802

U804

U805

UCP300

UCP400

V701

V702

ZD500

ZD604

ZD605

ZD606

ZD607 ZD608

ZD609

ZD610

ZD611

ZD613

ZD703

ZD800

ZD801

ZD802


Level 3 Repair

8-3


8a-2-1. Main Bottom

ANT100

ANT101

ANT200

ANT201

C100

C101

C102

C103

C104

C106

C107

C108

C109

C110

C111

C112

C113

C114

C115

C116

C117

C118

C119

C120

C121

C122

C123

C125

C126

C127

C128

C129C130

C131

C132

C133

C134

C135

C136

C137

C138

C140

C141

C143

C149

C150

C151

C153

C154

C156

C157

C158

C159C161

C162

C163

C164

C165

C166

C168

C169

C171

C172

C174

C175

C176

C177

C178

C179

C180

C181

C182

C183

C184

C185C186C187

C188

C189

C190

C191

C200

C201

C202

C205

C209

C210

C211

C216

C217

C218

C219

C222

C339

C401

C501

C502

C503

C504

C512

C513

C514

C515

C516

C517

C518

C519

C520

C521

C522

C523

C524

C525

C526

C527

C528

C529

C530

C531

C532

C533

C534

C535

C536

C537C538

C539

C541

C542

C543

C614

C616C617

C619

C620

C622

C638

C639

C647

C648

C649

C700

C701

C702

C704

C706

C708

C715

C716

C717

C718

C719C720

C723

C804

C805

C806

D500

F100

F101

F102

F103 F104

F105

F106

F107

F108

F700

F701

F702

F703

F704

F705

HDC300

HDC400

HDC600

HDC601

HDC701

L100

L101

L102

L103

L104

L105L106

L107

L108

L109

L110

L111

L112

L113

L114

L115

L116

L117

L118

L119

L120

L121

L122

L123

L124

L202

L500L501L502

L503

L700

L701

L802

L803

LED700

OSC100OSC201

OSC500

PAM100

Q700

R100

R102

R103

R107

R108

R110

R111

R201

R202

R203

R204

R205

R206

R207

R208

R408

R409

R501

R502

R503

R504R505

R506R507

R508

R614

R619

R620

R702

R703

R705

R706R707

R708

R709

R710

R713

R714

R806

RFS100

SC100

SC101SC102

SC103

SC104

SC105

SC106

SC107

SC800

SC801

SC802

SC803

TA500

TA501

TA502

TA503

TA504

TH400

TP20 7 TP208

TP414

TP501

TP700

TP701

TP702

TP703

TP704

TP705

TP706

TP707

TP708

U100

U101

U103

U104

U105

U107 U108U109

U200

U501

U502

U601

U604

U700

U701

U702

U703

U803

V700

V703

V704

ZD300

ZD600

ZD601

ZD602

ZD603

ZD612


Level 3 Repair

8-4


8a-2-1. Sub Top

U100

8a-2-1. Sub Bottom

SOC100

ANT100

ANT101

C100

C101

C102

C103

C104

C105

C106

C107

C108

C109

C110

C111

C112

C113

C114

C115

C116

C117

C118

C119

C120

C121

C122

C123C124

C125C126

C127

C128C129

L100

L101

OSC100

Q100

R100

R101

R102

R103

R104

R105

R106

R107

R108

R109

R110

R111

R112R113

R114

R115

R117

R118

R119

SIM100

TP100


Level 3 Repair

8-5


8b-3. Flow Chart of Troubleshooting

Equipments

↑ Oscilloscope ↑ Digital Multimeter

↑ Power Supply ↑ + driver, Tweezer


Level 3 Repair

8-6


8b-3-1. Power On

Check the Battery Voltageis more than 3.3V

' Power On ' does not work

Change the Battery

(Because of batt. power low)

END

No

Yes

Check U501 (PMIC) andPower n voltage

(C516 >1.2V, C517 >1.1V,C518>1.8V, C520,> 1.2V C527

> 2.8V,)

Check the problem point (short, open, crack etc)

and If PMIC has problem, change U501

No

Yes

Check the Clock atOSC500 that

Frequency is 32K

re-solder or Replace OSC500, C515 and

C536

No

Yes

Yes

check current consumption>=100mA Download again

check the initial operationYes

No

Yes

Check Resistance Values ofC325, C326, C503, C516. Arethe values are less than 100

ohm?

Replace capacitor or capacitors that has/have less

than 100 ohm resistance.Yes

No


Level 3 Repair

8-7



Level 3 Repair

8-8


8b-3-2. Initial

The pin #1,2 of U302 =swing properly 1.8V and 0V?

The pin #11,12 of U302=swing properly 2.8V and 0V?

Initial Failure

check U302 and UCP400 and related parts (short,crack, etc)

END

No

Yes

AP_PS_HOLD(TP501) andAP_N_RST_IN (R503) =

"low → High"?

Yes

Check U501 (crack, open, etc)(if U501 has some problem, it is to be replaced)

Yes

No

There is 32.768KHz wave formsat OSC300 and OSC500 Replace OSC300 and OSC500

R321 >= 1.8V? Check UCP300 and related parts (short, crack,etc)

Replace OSC 400 and OSC100There are 24MHz wave forms atOSC400(C421,C422) and 26MHzwave forms at OSC100 (C174)

LCD display OK?

Sound is OK?

Check the LCD part (short, crack, etc)

Check the Audio Part (short, crack, etc)

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes


Level 3 Repair

8-9



Level 3 Repair

8-10



Level 3 Repair

8-11


8b-3-3. Charging Part

Check IFC700 pin #1 whethervoltage reading is greater than

4.9V

Abnormal charging part

END

No

Yes

Check U501 VINCHG whether5V is measured

(C501)

No

Yes

Battery is charging?No

Yes

Check the TA

(TA may not be connected properly)

Resolder or Replace U703

Resolder or Replace U501

Yes


Level 3 Repair

8-12


R708

VUSB_5VV_BAT

TXDE3

BOOT

E4JIG

E5G

ND

AUDIO_RC5

DP_CON

D1

VBA

TD2

ID_BYPASS

D3V_AUDIO_R

D4VIDEO

D5ID_CON

E1RXD

E2

DP_HOST

B2I2C_SDA

B3AUDIO_L

B4MIC

B5DM_CON

C1DM_HOST

C2I2C_SCL

V_AUDIO_LC3

C4

NC

1

NC

2

A1INTB

A2

VDD

IO

A3CHG_DET

A4

VBU

S_O

UT

A5

VBU

S_IN

B1

U703

027C327C917C

VCC_2.8V_PDAV_BUS_5V

CP_D-CP_D+

JTAG_TXDJTAG_RXD

AP_D- USB_SCL_2.8V

USB_DPUSB_ID

IF_RXDIF_TXD BOOT_MODE

JACK_nINTTA_CURRENT_SEL

AP_D+

USB_SDA_2.8V

USB_DM

VARM_1.2V_C110

V_BAT

C502

C500

VUSB_5V

C501

LDO7 K7

VIN1K8

VIN1K9

ENSW1NJ9

GN

D_B

3K

1

LDO4 K10

VINB4K2

SW_B4K3

GN

D_B

4K

4

BA

TTK

5

VIN

CH

GK

6

LDO5 J10

SW_B3J2

SW_B4J3

GN

D_B

4J4

BA

TTJ5

VIN

CH

GJ6

NC12J7NC11J8

FB_B4H3

SAFE1H4

SAFE2H5

DET

BA

TH

6

COM12H7 COM11H8

VIN4H9

SW_B3J1G5

VIC

HG

G6

NO12G7NO11G8

VIN4G9

VINB3H1

LDO6 H10

VINB3H2

F7NC21F8

ENSW2NF9

GN

D_B

2G

1

LDO8 G10

GN

D_B

2G

2

FB_B3G3

UPW

R_L

DO

G4

PON_N

E9SW_B2

F1

LDO9 F10

SW_B2F2

SW_B2F3

MRST_NF4 IRQ_NF5

BA

TT_M

ON

F6

NC22

E10

VINB2E2

FB_B2E3

HF_PWRE4

RST_NE5

PWRENE6

COM22E7 COM21E8

VLSW2

D3

SET2D4

SET3D5

PS_HOLDD6

NO22D7NO21D8

VIN2D9

VINB2E1

LDO11

C5

SRADC6

LDO10 C7

LDO3 C8

VIN2C9

GN

D_B

1D

1

LDO12 D10

GN

D_B

1D

2

SET1

B7

LDO2 B8

VIN5B9

SW_B1C1

LDO13 C10

FB_B1C2

PWR_ONC3

SDAC4 SCL

A9

SW_B1B1

LDO17B10

SW_B1B2

32KHZCPB3 32KHZAPB4

DG

ND

B5

VCO

INB

6

VIN3

A10

VINB1A2

XOUTA3XINA4

AG

ND

A5

LDO14A6

VIN3A7

LDO15A8

SEL

U501

NC

1

NC

2

VINB1A1

LDO16

C512

IFC700

ZD703

C165

C166

C202

C216

C217

C218

C219

C401

C501

C502

C503

C504

C512

C513

C514

C515

C516

C517

C518

C519

C520

C521

C522

C523

C524

C525

C526

C527

C528

C529

C530

C531

C533

C534

C535

C536

C541

C543

C619

C719C720

L111

L202

L500L501L502

L503

OSC500

R110

R111

R708

TA500

TA501

TA502

TA503

TA504

TP50

1

U105

U501

U703

ZD

600ZD

612


Level 3 Repair

8-13


8b-3-4. Sim Part

Check the Sub PCB

NO SIM

Check the connection ofthe HDC300 Reconnect the Sub PCB

Yes

Yes

Yes

No

END

003DZ

ADP_V8.1_CCV

88799

933C

818191 91

22

0202

44336655

7010121211111

3131 41 4151 51 6161

7171

003CDH11

V8.1_MISV_PCTAB_V

TESER_MRAW

ERAWMRIF_CFN

QRI_CFN

NE_CFNV8.1_ADS_CFNV8.1_LCS_CFN

TSR_MISKLC_MIS

OI_MIS

C339

C700

C701

C804

C805

C806

HDC300

HD

C701

L802

L803

R703

R806

TP700

TP701

TP702

TP703

TP704

TP705

TP706

TP707

TP708

U70

0

U803

V700

V704


Level 3 Repair

8-14


8b-3-5. Microphone Part

Check the voltage at C635 =2.8V

Check component solderingstatuses of C610, C611

Resolder or replace U603

Resolder or replace C610, C611

END

No

Yes

Yes

No

Check main microphone function

in voice call receiver mode

Yes


Level 3 Repair

8-15


BOTH306

C314

C315

C316

C317 C331

C332

C333

C335

C336

C418

C419

C421C422

C425

C428C429

C600

C601C602

C603

C604

C605

C606

C607

C608

C609

C610

C611

C612

C613

C621

C623

C624

C626

C627

C628

C629

C630

C703

C705

C707

C709C710

F706F707 H

DC70

0

J_EXTNRST

J_RTCK

J_RXD

J_TCK

J_TDI

J_TDO

J_TMS

J_TRSTn

J_TX

D

L300

L600

L601

L703

OSC400

R317

R319

R321

R322

R328

R403

R404

R423

R469 R470

R602

R603

R606

R607

R609

R615R616

R629

R701

R802

R803

TH300

TP301

TP40

1

TP402

TP405

TP40

6

TP40

7

TP408TP600

U30

1

U302

U400

U60

2

C632

C633

C634

C635

C636

C637

C643

C644

C645 C

646

C721 C

722

IFC700

L602

L603

L604

L605L606

L607

L608

L609L610

MIC600

R601

R604

R612

R613

R617R618

R621

R624

R625

R627

R628

R711 R712

TA600

TA601

U60

0

U603

U606

U60

8

U704

ZD604

ZD

605

ZD

606

ZD607 ZD608

ZD609

ZD610

ZD611

ZD

613

ZD703


Level 3 Repair

8-16


8b-3-6. Speaker Part

Check signals on L600,L601

Check speaker function.

Play MP3 with maximum volume level.

Check signals onL600, L601 again

No


Replace UCP400

Yes

END

Yes

Check the connection ofHDC600 Reconnect HDC600

No

Yes

No

Replace the speakermodule

Yes

Yes


Level 3 Repair

8-17


ZD60

3

ZD60

2

R614C620

PS_2.8V

C622 C619C647 C648

C614NC13 14

NC

4455 6677 8899

NC11 12

NC

HDC600

11

1010

2233

C649

ZD60

0

ZD61

2

ZD60

1PS_VOUT

SPK_OUT_R_PSPK_OUT_R_N

RCV_N

RCV_P

ALS_IOUT

ALS_SDA_2.8VALS_SCL_2.8V

R611

C606

L600

R603

R608SHORT

C604

R600SHORT

R606

VCC_1.8V_PDA

C625

C626

V_BAT

R609

7

R616

NC

6NC

13NC

14 NC15 NC

NC16

17 NCNC18

VCC

1S2

1

1SEL

2S1

10

2S2

12

2SEL

9

3

D1

11

D2

GND 8

5

U600

4

1S1

2

C600

SHORTR605

VCC_2.8V_PDA

R613

C629

C613R610

C628

R602

C602

L601

C605

C624

R612

HPOUT1LH6

CPVOUTNH7

CPCBH8

CP

GN

DH

9

CPVOUTPG7

CPCAG8

CPV

DD

G9

SCLKH1

GPIO3|BCLK2H2

GPIO5|DACDAT2H3

GPIO8|DACDAT3H4

GPIO10|LRCLK3H5

HPOUT2PF8

HPOUT2NF9

BCLK1G1

CS|ADDRG2

ADCLRCLK1|GPIO1G3

GPIO6|ADCLRCLK2G4

HPOUT1FBG5

HPOUT1RG6

LDO

1VD

DE

9D

CVD

DF1

ADCDAT1F2

SDAF3

GPIO4|LRCLK2F4

GPIO9|ADCDAT3F5

GPIO11|BCLK3F6

HP

2GN

DF7

GPIO2|MCLK2E1

DG

ND

E2

LRCLK1E3

DACDAT1E4

GPIO7|ADCDAT2E5

VREFCE6

AG

ND

E7

AG

ND

E8

DB

VDD

D2

MCLK1D3

LDO1ENAD4

LDO2ENAD5

AG

ND

D6

IN1LND7

AVD

D2

D8

AVD

D1

D9

SPKOUTRNC3

LINEOUT2NC4

LINEOUT1NC5

DMICCLKC6

IN1RPC7

IN1LPC8

VMIDCC9

LDO

2VD

DD

1

LINEOUT2PB4

LINEOUT1PB5

MICBIAS2B6

IN1RNB7

IN2LP|VRXNB8

IN2LN|DMICDAT1B9

SPK

GN

D2

C1

SPK

VDD

2C

2

RE

FGN

DA

5

LINEOUTFBA6

MICBIAS1A7

A8IN2RP|VRXP

IN2RN|DMICDAT2A9

SPKOUTLNB1

SPK

VDD

1B

2

SPKOUTRPB3

U602

NC1

NC2

A1

SPK

GN

D1

SPKOUTLPA2

SPKMODEA3

CIFMODEA4

C603

R615

C601

C608C607

R604

TP600

C630

C611

C627

C610

R601

C609

C612

R607

EAR_MIC_N

MAIN_MIC_N

EAR_GND_3.5

MM_I2S_DO

XTAL_24MHZ_AP

EAR_SEL

EAROUT_R

EAROUT_L

SPK_OUT_R_P

SPK_OUT_R_N

BT_PCM_DIN_1.8V

BT_PCM_CLK_1.8V

RCV_NRCV_P

MM_I2S_CLK

AP_SCL_1.8V

SPEECH_PCM_CLK

SPEECH_PCM_OUT

BT_PCM_DOUT_1.8V

BT_PCM_SYNC_1.8V EAR_MIC_P

CODEC_LDO_EN

MAIN_MIC_P

CODEC_MCLK

MM_I2S_SYNC

SPEECH_PCM_IN

MM_I2S_DI

AP_SDA_1.8V

SPEECH_PCM_SYNC

BOTH306

C310

C312

C314

C315

C316

C317 C331

C332

C333

C335

C336

C418

C419

C421C422

C425

C428C429

C430

C600

C601C602

C603

C604

C605

C606

C607

C608

C609

C610

C611

C612

C613

C621

C623

C624

C626

C627

C628

C629

C630

C703

C705

C707

C709

C710

C711

C712

C713

C800C801 C807

D701

F706F707 H

DC70

0

J_EXTNRST

J_RTCK

J_RXD

J_TCK

J_TDI

J_TDO

J_TMS

J_TRSTn

J_TX

D

L300 L301 L303

L600

L601

L702

L703

OSC400

R312

R313

R317

R319

R321

R322

R328

R403

R404

R423

R455

R469 R470

R602

R603

R606

R607

R609

R615R616

R629

R701

R704

R802

R803

TH300

TP301

TP40

1

TP402

TP405

TP40

6

TP40

7

TP408TP600

U30

1

U302

U400

U60

2

U70

5

U80

1

U802

U804

C161

C163

C164

C165

C166

C185

C503

C504

C515

C516

C517

C518 C

532

C536

C614

C616C617

C619

C620

C622

C647

C648

C649

C704

C706

C708

C715

C716

C717

C718

HD

C60

0

L111

L500L501L502

L700

L701

LED700

OSC500 R

108

R110

R111

R614

R705

R706R707

SC102

SC800

TP50

1 U103

U10

4U501

U601

U701

U702

ZD

600ZD

601

ZD

602ZD

603

ZD

612


Level 3 Repair

8-18


8b-3-7. Receiver Part

Check receiver function in voice call receiver

mode

Yes

Check the signals atZD602,ZD603 Resolder or replace U602

Yes

END

No

Check the signals atZD602,D603 again Resolder or replace UCP300

Yes

Check the connection ofHDC600 Reconnect HDC600

Yes

No

Replace the Receiver-SensorAss'y

No

Yes


Level 3 Repair

8-19


ZD60

3

ZD60

2

R614C620

PS_2.8V

C622 C619C647 C648

C614NC13 14

NC

4455 6677 8899

NC11 12

NC

HDC600

11

1010

2233

C649

ZD60

0

ZD61

2

ZD60

1

PS_VOUT

SPK_OUT_R_PSPK_OUT_R_N

RCV_N

RCV_P

ALS_IOUT

ALS_SDA_2.8VALS_SCL_2.8V


Level 3 Repair

8-20


8b-3-8. BT/WIFI

BT/WiFi is not working

Check BT or WiFi functionON

NoEnable BT or WiFi Function

Yes

END

Check the Voltage on C202 =2.8V

No Check AP PMIC(U501) for Crack, Open oretc. (If U501 has some problem, it needs to

be replaced)

Yes

Check 38.4MHz Clock atC222

NoCheck OSC 201

Yes

Check the Voltage on L202 =1.2V

Nore-solder or change L202

Yes

Check the Status of C205,ANT200

Nore-solder or Replace C205, ANT200

Yes

re-solder or Replace U200

Yes


Level 3 Repair

8-21


< WiFi / BT >

C210 C211

C205

C216

VCC_2.8V_PDA

C202

R204R203

L202

VCC_2.8V_PDA

R205

C200

V_BAT

C201

TP208

R207

TP207

C218C219

C217

C209

R206R202

OSC201

2

GND

3OUT

SW

1

VDD4

ANT200

11

22

VCC_2.8V_PDA

R208

C222

OS

CO

UT

6

GN

D60

OS

CIN

7

GN

D8

BT

_UA

RT

_TX

9

GN

D52

GN

D53

GN

D54

GND55

GND56

GND57

GN

D58

GN

D59

VDD_PA45

VDD_2.5V46

GND47

SR_VLX48

GND49

GN

D5

GND50

GND51

GN

D38

WL_UART_TXD39

VB

AT

4

WL_UART_RXD40

VIO41

VIO_SDIO42

VDD_CORE43

VDD_RADIO_PLL44

GN

D30

SD

IO_

D1

31S

DIO

_D

332

SD

IO_

CM

D33

SD

IO_

D2

34S

DIO

_C

LK

35S

DIO

_D

036

CL

K_R

EQ

37

BT_RST23

BT_HOST_WAKE24

GN

D25

BT

_WA

KE

26W

L_

RS

T27

WL

_H

OS

T_W

AK

E28

WL

_W

AK

E29

VB

AT

3

GND16

BT_PCM_IN17

BT_PCM_SYNC18

BT_PCM_OUT19

VIN

_1.2

V2

WL_REG_ON20

BT_REG_ON21

SLEEP_CLK22

GN

D1

BT

_UA

RT

_RX

10

BT

_UA

RT

_RT

S11

BT

_UA

RT

_CT

S12

BT

_PC

M_C

LK

13

GN

D14

ANT15

U200

R201

BT

_UA

RT

_RX

DBT_WLAN_CLK_38.4MHZ_REQ

BT_WLAN_CLK_38.4MHZ

WLAN_nRSTWLAN_HOST_WAKEWLAN_WAKE

WLAN_SDIO_D(1)WLAN_SDIO_D(3)WLAN_SDIO_CMDWLAN_SDIO_D(2)WLAN_SDIO_CLKWLAN_SDIO_D(0)

BT_WLAN_CLK_38.4MHZ_REQ

BT

_WL

AN

_CL

K_3

8.4M

HZ

BT_PCM_IN

BT

_UA

RT

_TX

D

BT

_UA

RT

_RT

S

BT_PCM_CLK

WLAN_BT_ENBT_WIFI_CLK32K

BT_nRSTBT_HOST_WAKE

BT_WAKE

BT_PCM_OUT

BT

_UA

RT

_CT

S

BT_PCM_SYNC

AN

T2

00

C1

65

C200

C201

C202

C20

5

C209

C210

C211

C2

16

C2

17

C2

18

C2

19

C22

2

C4

01

C501

C5

02

C512

C513

C514

C515

C5

19

C520

C521

C5

22

C5

23

C5

24

C525

C5

26

C5

27

C5

28

C5

29

C5

30

C5

31

C533

C534

C5

35

C53

6C

54

1

C5

42

C543

C638

C63

9

C7

00C

701

C702

C719C720

C723

C8

04

C805

C8

06

D500

F7

00F

701

F7

02F

703

F7

04F

705

HDC400

HD

C7

01

L111

L202

L503

L802

L803

OS

C20

1

OS

C5

00

Q700

R11

0

R111

R20

1

R2

02

R2

03R

204

R2

05

R206

R20

7

R208

R501

R50

2

R503

R5

04

R5

05

R6

19

R620

R702

R703

R708

R7

09

R710

R713

R714

R8

06

SC

104S

C1

06

SC

801

SC802

SC

803

TA501

TA

502

TA

503

TA504

TP207 TP208

TP414

TP

501

TP

700

TP701

TP

702

TP703

TP

704

TP705

TP

706

TP707

TP708

U105

AAT2146IJS-0.6-T1

U20

0

SW

B-B

23

U501

’MA

X8998E

WQ

+T

’

U604

FXLA104UMX

U70

0

RP

150K

009A

-TR

U703

FSA9480UCX

U8

03

RP

103K

301D-T

R

V703


Level 3 Repair

8-22


8b-3-9. GPS

GPS does not work

Yes

NoCheck AP PMIC(U501) for Crack, Open or etc.

(If U501 has some problem, it needs to bereplaced)Check the Voltage on L204 =

2.8V

Yes

No

Check U201Check the Voltage on C221 =1.8V

Yes

Nore-solder or change C227, L201, C208, ANT201Check the Status C227, L201,

C208, ANT201

Yes

Yes

END

Change U201


Level 3 Repair

8-23


< GPS >

C207

L207

TP206

TP200

VDD_AUXO_1.8V

VDD_AUXO_1.8V

TP203

TP201

1GND

3GND

NC5 NC 2

4 OUT

6 VCC

OSC200

C213

C225

L204

GG1

3

RFIN2

RFOUT10

VC

TL

8

VD

D12

G13

GG45

GG67

G9

G1

1

U202

C220

L2

00

C215

11

22

ANT201

L206

V_BAT

G5

REGPUG6

F3

VD

D1P

2_G

RF

F4

VD

D1

P2_

CO

RE

F5

VD

D_P

RE

F6

GPS_RFIPG1

GP

S_V

SS

LN

AG

2

GPS_AUXOPG3

REF_CAPG4

VD

D_B

AT

E1

GP

S_V

DD

PL

LE

2

VD

D_

AU

XO

E3

AV

SS

E4

VD

D_A

UX

INE

5

TM2E6

GP

S_V

SS

IFF

1

GP

S_V

DD

LN

AF

2G

PS

_VD

DIF

C5

C_GPIO_5C6

TCXOD1

ADCPD2

VS

SD

3

VS

SD

4

LPO_IND5

VD

DC

D6

ADCN

B3

VD

DC

B4

C_GPIO_0B5

RST_NB6

VD

DA

DC

C1

VS

SA

DC

C2

VS

SC

3

C_GPIO_4C4

C_GPIO_3

A1D_GPIO_3

A2D_GPIO_2

A3

C_GPIO_2A4

GPS_CALA5

VD

DO

_18

A6

D_GPIO_1B1

D_GPIO_0B2

C_GPIO_1

U201

NC

1

NC

2

D_GPIO_4

C223

C203

TP204TP202

TP205

C208

VCC_2.8V_PDA

C204

C224

L201

C221

VCC_2.8V_PDA

VCC_1.8V_PDA

C227

GPS_LNA_EN

GPS_LNA_EN

GPS_CLK_26M

GPS_FTA

GPS_nRST

GPS_CLK32K

GPS_UART_CTSGPS_UART_RTS

GPS_UART_RXDGPS_UART_TXD

GPS_ENGPS_BLANKING

BAT500

C203

C20

4

C207

C20

8

L20

6

C213

L207

C215

C220 C221

C223

C22

4

C225

L20

1

C5

00

C540

C8

08C

809 C

81

0C

81

1

D501

L200

L204

C227

OS

C200

R465 R466

R5

00R

808

TA5

05

TP

20

0

TP201

TP202TP203TP

204

TP

20

5 TP

20

6

U201

BCM4751IUB2G

U202

HFQRX3N FA-033

U8

05

K3

GT

R


Level 3 Repair

8-24


8b-3-10. NFC

NFC is not Detecting

Yes

No Check AP PMIC(U501) for Crack, Open oretc. (If U501 has some problem, it needs to

be replaced)Check the Voltage on C100 =

1.8V

Yes

END

No re-solder or change L205, C226, C208,ANT100, ANT101

Check the Status of R103,L100, C113, C121,

L101,ANT100, ANT101

Yes

Nore-solder or change OSC100Check the frequency on

C103 27.12MHz

Yes

Replace NFC Module U100

Yes


Level 3 Repair

8-25


NFC ANT MATCHING

< 27.12 MHz >

C104

R101 C110

V_BAT

R102

NFC_SIMVCC

C101

C106

C123

VCC_1.8V_PDA

R108R107

ANT100

112

2

R106ANT101

112

2

Q100

3 D

1G

2 S

R104

C109

C100

C107

TP100

VCC_1.8V_PDA

C116

R100

L101

R105

C114

C113L100

C105

VCC_1.8V_PDA

CP_VSIM_1.8V

C102

R111

C124

C112 R103

C115

C117

2

31

NC

OSC100

R110

VCC_1.8V_PDA

R119

VCC_1.8V_PDA

H6TX1

H7TX2

H8

TV

SS

2

C111

G6ANT2

G7

PM

U_G

ND

G8

TV

DD

H1RST_N

H2TEST6

H3

AV

SS

2

H4RX

H5

TV

SS

1

F6

VS

S

F7

TV

DD

_OU

T

F8VBAT2

G1

AV

DD

_IN

G2TEST8

G3TEST9

G4VMID

G5ANT1

E6 I| O1

E7SIGIN

E8VEN_MON

F1XTAL2

F2

AV

DD

_OU

T

F3TEST7

F4IFSEL1

F5IFSEL2

D6EXT_SW_CTRL

D7SIGOUT

D8

VB

AT

E1XTAL1

E2

AV

SS

1

E3GPIO0

E4IF0

E5TEST5

C6TEST10

C7SWIO

C8

SV

DD

D1

VC

O_V

DD

D2

DV

SS

D3GPIO1

D4IF3

D5TEST4

B6TEST2

B7VEN

B8

SIM

VC

C

C1VDHF

C2GPIO3

C3GPIO2

C4IF2

C5TEST3

A6TEST1

A7CLK

A8

PM

UV

CC

B1GPIO4

B2GPIO5

B3GPIO6

B4IF1

B5

PV

SS

U100

1N

C2

NC

A1GPIO7

A2IFSEL0

A3IRQ

A4

PV

DD

A5

DV

DD

C103

C120

C122

C119NC

C118

C121

R117R118

R109

NFC_SWP

NFC_CLK_IN

NE

_C

FN

NE

V_

CF

N

NFC_PVDD

NFC_CLK_IN

NFC_CLK_OUT

NFC_PVDD

NFC_FIRM

NFC_VEN

NFC_CLK_OUT

NFC_SCL_1.8VNFC_SDA_1.8V

NFC_IRQ


Level 3 Repair

8-26


8b-3-10. LCD

LCD is still off after PWR ON

Yes

NoReconnect the HDC701Check the connection of

HDC701

Yes

END

NoResolder EMI FiltersCheck the soldering status of

EMI Filters F700~F705

Yes

NoCheck PMIC(U501)

Check VCC_3.0V_LCD =3.0V (C535), VLCD_1.8V =1.8V (C711), V_BAT > 3.4V

(C712)

Yes

Replace LCD Module

Yes


Level 3 Repair

8-27


4 4NI

1TUO 5

62TUO

3TUO 7

84TUO

207F

DNG901

DNG

1NI1

2 2NI

3NI37

84TUO

901DNG

1NI1

2 2NI

3NI3

4 4NI

1TUO 5

62TUO

3TUO

007F

DNG

5

62TUO

3TUO 7

84TUO

507F

DNG901

DNG

1NI1

2 2NI

3NI3

4 4NI

1TUO1 1NI

2NI2

3 3NI

4NI4

51TUO

2TUO 6

73TUO

4TUO 8

407F

9DNGDNG

01

3TUO

4TUO 8DNGDNG

01

1 1NI

2NI2

3 3NI

4NI4

51TUO

2TUO 6

7

307F

9

2

3NI3

4NI4

51TUO

2TUO 6

73TUO

4TUO 8

107F

9DNGDNG

01

1 1NI

2NI

)41(D_DCL

)01(D_DCL

F_)41(D_DCL

F_)01(D_DCL

)22(D_DCL

)81(D_DCL

F_)22(D_DCL

F_)81(D_DCL

)0(D_DCL

F_)4(D_DCL

F_)0(D_DCL

F_)6(D_DCL

F_)2(D_DCL

F_)21(D_DCL

F_)8(D_DCL

)21(D_DCL

)8(D_DCL

)2(D_DCL

)4(D_DCL

)6(D_DCL

F_)91(D_DCL

F_)12(D_DCL

F_)32(D_DCL

)11(D_DCL

)31(D_DCL

)51(D_DCL

F_)9(D_DCL

F_)11(D_DCL

F_)31(D_DCL

F_)51(D_DCL

)71(D_DCL

)91(D_DCL

)12(D_DCL

)32(D_DCL

F_)71(D_DCL)1(D_DCL

)3(D_DCL

)5(D_DCL

)7(D_DCL

F_)1(D_DCL

F_)3(D_DCL

F_)5(D_DCL

F_)7(D_DCL

)61(D_DCL

)02(D_DCL

F_)61(D_DCL

F_)02(D_DCL

)9(D_DCL

TSP_VDD_2.8V

R714

V70

0

ANODE_24VCATHODE

R703

VLCD_1.8V VCC_3.0V_LCD TSP_VDD_2.8V

6 67 7 8 89 9

5151 52525353 5454

55655556 57857558

4545 46464747 48484949

5 5

5050

38 3839 39

4 4

40 404141 42424343 4444

30 3031 31 32 3233 33 34 3435 35 36 3637 37

22 2223 23 24 24

2525 26262727 28282929

3 3

16 1617 17 18 1819 19

2 2

20 2021 21

HDC701

1 1

10 1011 11 12 1213 13 14 1415 15

V70

4

V70

3R702 TP708

TP704TP706

TP700TP702

TP705TP707

TP701TP703

V70

1

TSP_AVDD_3.3V

R710

V70

2

LCD_SDOLCD_SDI

LCD_SCLKMLCD_RST

LCD_ID2

LCD_D(18)_FLCD_D(20)_FLCD_D(22)_F



LCD_D(10)_FLCD_D(12)_FLCD_D(14)_FLCD_D(16)_F

TSP_INT

LCD_D(23)_FLCD_D(21)_FLCD_D(19)_FLCD_D(17)_FLCD_D(15)_FLCD_D(13)_FLCD_D(11)_FLCD_D(9)_FLCD_D(7)_F

LCD_ID1

LCD_nCS

LCD_PWM_OUT

LCD_DE

LCD_D(1)_F

LCD_VSYNCLCD_HSYNC

TSP_SDA_2.8V

LCD_DOTCLK

LCD_D(0)_F

TSP_SCL_2.8V

CATHODE

D701

V_BAT

C713R704

C712

1

3

7

4

6

U705

2 5

ANODE_24V

L702

LCD_PWM_OUT

C711

CTRL

FB

GND

GN

D SW

VIN

COMP

C200

C201

C209

C216

C222

C339

C501

C502

C512

C513

C514

C517

C518

C519

C522

C523

C525

C700

C701

C702

C804

C805

C806

F700F701

F702F703

F704F705

HDC300

HDC400

HD

C701

L202

L501L502

L503

L802

L803

OSC20

1

R201

R207

R208

R702

R703

R710

R714

R806

SC800

SC801

SC803

TA500

TA501

TA502

TA503

TP700

TP701

TP702

TP703

TP704

TP705

TP706

TP707

TP708

U70

0

U803

V700

V703

V704

ZD

300

BOTH305

C400

C420

C427

C430

C711

C712

C713

C800C801 C807

D701

L702

L800

L801

OSC400

PAD800

R400

R449

R450

R463

R704

TAC800

U70

5

U80

1

U804

ZD

800


Level 3 Repair

8-28


8b-3-11. TSP

Touch Screen does not work

Yes

NoReconnect the HDC701Check LCD Connector on

Main PBA

Yes

END

NoReconnect TSP ConnectorCheck the TSP Connector on

LCD Module

Yes

NoResolder or Replace U700U700 Pin 6 = 2.8V (C701)

and Pin 8 = 3.3V (C702)

Yes

Replace LCD Module

Yes


Level 3 Repair

8-29


V3.3_DDVA_PST

007C

DDV

81TUOV

62TUOV

007U1EC1

3 2EC

2 DNG

GN

D

9

CN4 5CN

7

107C

V8.2_DDV_PST

TAB_V

207C

NO_ODL_PST

C339

C700

C701

C702

C804

C805

C806

F700F701

F702F703

F704F705

HDC300

HDC400

HD

C701

L802

L803

R702

R703

R710

R714

R806

SC801

SC803

TP700

TP701

TP702

TP703

TP704

TP705

TP706

TP707

TP708

U70

0U

803

V700

V703

V704

ZD

300


Level 3 Repair

8-30


8b-3-12. 5M CAM & VGA

Yes

Check the Cameraconnector on Main PBA Reconnect the HDC700

No

Check the voltageC533,C716 = 2.8V,

C519 = 1.2V,C529 = 3.0V

Yes

Resolder U501, U701 or change PBANo

Yes

Check UCP400 related to 24MHzNoCheck R701 Pin 1 is

24MHz

Yes

END

Replace the camera module

"Camera" function does not work


Level 3 Repair

8-31



Level 3 Repair

8-32


Check C102 ≒ -65dBm?

8b-3-13. GSM850/GSM900 RX

NORMAL CONDITIONcatch the channel?

Check the voltage at{C166 = V_BAT?} & {C114 =

2.85V?} & {C115, C116 =1.8V?} & {C163 = 2.85V?}

Check the Voltage atC134, C136 = VBAT

Check L105(G850) or106(G900) ≒ -65dBm ?

CHECK solderedRFS100, L103, C102

re-solder or changePAM100, C134, C136

re-solder or changeU101, OSC100

re-solder or changeU101, U104, U105

Check the freq. at C174= 26MHz ?

change or re-solderOSC100

Check C126 ≒ -65dBm ?

re-solder or changeF100, C125, C127, L105(G850)F100, C128, C129, L106(G900)

re-solder or changeUCP300

END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

Check the soldering ofU101, OSC100.Are they OK?

NO

YES

re-solder or changeC126, PAM100

Check C163 = 2.8V ? re-solder or changeU104, C163

NO

YES

Is GSM850/GMS900Receiver O.K?


Level 3 Repair

8-33



Level 3 Repair

8-34



8b-3-14. DCS(GSM1800)/PCS(GSM1900) RX



2.85V?} & {C115, C116 =1.8V?} & {C163 = 2.85V?}


Check L108(DCS) orL109(PCS) ≒ -65dBm ?



re-solder or changeU101, OSC100




Check C137(DCS) orC140(PCS) ≒ -65dBm ?

re-solder or changeF102, C143, C149, L108(DCS)F102, C150, C151, L109(PCS)


END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

Check the soldering ofU101, OSC100.Are they OK?

NO

YES

re-solder or changeC137(DCS), C140(PCS)

Check C163 = 2.8V? re-solder or changeU104, C163

NO

YES

Is DCS/PCS ReceiverO.K?


Level 3 Repair

8-35



Level 3 Repair

8-36



8b-3-15. WCDMA2100 RX



2.85V?} & {C115, C116 =1.8V?} & {C163 = 2.85V?}





re-solder or changeU100, R102




Check L119 ≒ -65dBm ?

re-solder or changeF106, C100, C101, L100


END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

Check F101 Pin #1 ≥-65dBm ?

NO

YES

re-solder or changePAM100, C169, L119

Check C163 = 2.8V?


NO

YES

Check L107 ≥-65dBm ?

YES

re-solder or changeU104, C163

NO

Is WCDMA2100 ReceiverO.K?


Level 3 Repair

8-37



Level 3 Repair

8-38



8b-3-16. WCDMA1700 RX



2.85V?} & {C115, C116 =1.8V?} & {C163 = 2.85V?}









Check L113 ≒ -65dBm?



END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES


NO

YES

re-solder or changePAM100, L124, C153

Check C163 = 2.8V ?


NO

YES


YES


NO



Level 3 Repair

8-39



Level 3 Repair

8-40



8b-3-17. WCDMA900 RX










Check L113 ≒ -65dBm ?



END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES


NO

YES

re-solder or changePAM100, L112, L113

Check C163 = 2.8V ?


NO

YES


YES


NO



2.85V?} & {C115, C116 =1.8V?} & {C163 = 2.85V?}


Level 3 Repair

8-41



Level 3 Repair

8-42


Check the Tx power atPAM100 PIN#1 ≒ 33dBm?

8b-3-18. GSM850/GSM900 TX

Check the Tx power atL101 ≒ 33 dBm ?

Check the voltage at{C166 = V_BAT?} & C1142.85V?} & {C115, C116 =1.8V?} & {C163 = 2.85V?}


Check C163 = 2.8V ?

re-solder or changePAM100


re-solder or changeU101


Check the freq. at C174 =26MHz ?


Check C130 waveform. Isit looks like rectangular ?

re-solder or changeU104, U105, R110, R111


END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

Check the Tx Power atPAM100 PIN#14 ≒ 4dBm

NO

re-solder or changeC130, U101

YES

Is GSM850/GSM900Transmitter O.K?

re-solder or changeRFS100, C102, L103

NO IN INFINEON PHONE TOOLNON SIGNALING MODETX POWER LEVEL : 5

GSM850 CH : 190GSM900 CH : 621

IN SPECTRAL ANALYZERRBW : 100KHzVBW : 100KHzSPAN : 10MHz

REF LEV : 10dBmGSM850 : 836.6MHzGSM900 : 902.4MHz


Level 3 Repair

8-43



Level 3 Repair

8-44


Check the Tx Power atPAM100 PIN#1 ≒ 30dBm?

8b-3-19. DCS(GSM1800)/PCS(GSM1900) TX

Check the Tx power atL101 ≒ 30 dBm ?



Check C163 = 2.8V ?







Check C130 waveform. Isit looks like rectangular ?

re-solder or changeU104, U105, R110, R111


END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

Check the Tx power atPAM100 PIN#25 ≒ 4dBm

NO

YES

re-solder or changeC130, U101

Is DCS/PCS transmitterO.K?


NO IN INFINEON PHONE TOOLNON SIGNALING MODETX POWER LEVEL : 0

DCS1800 CH : 698PCS1900 CH : 661


REF LEV : 10dBmDCS1800 : 1747.4MHzPCS1900 : 1880MHz


Level 3 Repair

8-45



Level 3 Repair

8-46


Check the Tx Power atPAM100 PIN#1 ≒ 22.5dBm?

8b-3-20. WCDMA2100 TX

Check the Tx Power atL101 ≒ 22.5 dBm ?



Check the Tx Power atL120 ≒ 23 dBm?



re-solder or changeF105, U107




Check the Tx Power atC169 ≒ 23 dBm?

re-solder or changeF106, L119, C169


END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

Check the Tx Power atC172 ≒ 4dBm

NO

YES



NO

YES


Is WCDMA2100transmitter O.K?


NOIN INFINEON PHONE TOOL

NON SIGNALING MODETX DAC : 860

W2100 CH : 9750


REF LEV : 10dBmW2100 : 1950MHz


Level 3 Repair

8-47



Level 3 Repair

8-48


Check the Tx power atPAM100 PIN#1≒22.5dBm?

8b-3-21. WCDMA1700 TX












re-solder or changeF103, C153, L124


END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES


NO

YES



NO

YES




NOIN INFINEON PHONE TOOL

NON SIGNALING MODETX DAC : 860

W1900 CH : 1412


REF LEV : 10dBmW1900 : 1880MHz


Level 3 Repair

8-49



Level 3 Repair

8-50


Check the Tx power atPAM100 PIN#1≒22.5dBm?

8b-3-22. WCDMA900 TX












re-solder or changeF107, L113, L112


END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES


NO

YES



NOCheck the Tx Power atC183 ≒ 4dBm



NO

YES

IN INFINEON PHONE TOOLNON SIGNALING MODE

TX DAC : 860W900 CH : 2788


REF LEV : 10dBmW2100 : 897.6MHz


Level 3 Repair

8-51



Level 3 Repair

8-52


8b-3-23. Fuel Gauge Part

Check the voltageat C537,C538 = V_BAT

Abnormal fuel gauge part

END

No

Yes

Check signals on R461, R462No

Yes

Resolder or replace UCP 400

Yes

Resolder or replace R506 and R507


Yes


Level 3 Repair

8-53


C537

R508

V_BAT

3

2 CELL

CTG1

6EO

4 GND

GN

D9

SCL 7

8SDA

SEO 5

VDD

U502

C538

R507

R506

C539

FUEL_SCL_1.8V

FUEL_SDA_1.8V

R461

Y24 XM0CSN_5

Y25 XM0CSN_4

Y21 XM0BEN_1

W22 XM0ADDR_4

W24 XM0CSN_1

W21 XM0ADDR_3

V20 XM0ADDR_2

U22 XM0CSN_0

AF22 XM0ADDR_13

AF23 XM0ADDR_12

AF24 XM0ADDR_8

AF25 XM0ADDR_7

AE23 XM0ADDR_14

AE24 XM0CSN_2

AE25 XM0ADDR_1

AE26 XM0ADDR_11

AE27 XM0ADDR_10

AE22 XM0ADDR_9

AD26 XM0ADDR_6

AD27 XM0ADDR_5

AC25 XM0ADDR_0

AA24 XM0BEN_0

AA25 XM0CSN_3

TP418

R462

VCC_1.8V_PDA

NFC_SCL_1.8VNFC_SDA_1.8V

GPS_CNTL

LCD_SDI

LCD_SCLK

FUEL_SCL_1.8VFUEL_SDA_1.8V

MLCD_RST

DIC_ID

OLED_ID

LCD_nCS

AP_NANDCS

C400

C402

C403

C404

C405

C406

C407

C408

C409

C410

C411

C412

C413

C414

C415

C416

C417

C420

C423

C425

C426

C427

C428

C430

C603

C604

L800

L801L803

R301

R321

R323

R400

R401

R402

R403

R410

R411

R412

R414

R415

R416

R417

R418

R419

R420

R422

R423

R426

R427

R428

R429

R430

R431R432R433 R434

R435

R436

R437

R438

R439R440 R441R442

R443

R444

R445

R446

R447

R448

R449 R450

R453

R454

R455

R456

R457

R458

R459

R460

R461

R462

R463

R464

R467

R468

R470

R471

R802

R803

R806

RES

ET_O

UT

TP_GPS_CNTL

TP402

TP40

6

TP40

7

TP408

TP409

TP41

0TP412

TP417

U804

UC

P400

ZD800

C537C538

C539

R408

R409

R506R507

R508

TH400U502


Level 3 Repair

8-54


8b-4. Service Schematics

-NC Point(Top View)-

: NC

UCP400


Level 3 Repair

8-55


UCP300

: NC


Level 3 Repair

8-56


: NC

U303

Index


7. Level 2 Repair

7-1


1) M1.4 X L4.0

SCREW Torque: 1.2 ~ 1.4kgf.cm

1) Be careful not to make a damage to the rear

cover by jig.

1) Be careful with FPCB separation.

1) Be careful with PBA.

※ M1.4 X L3


7-1. Disassembly and Assembly Instructions7-1-1. Disassembly

Loosen 6 rear screws1 2Separates the Rear cover from the set

using the jig.

3 Detach LCD connector and Touch key FPCB

connector from PBA

Loosen 2 screws on PBA4


7. Level 2 Repair

7-2


1) Be careful when Motor, Receiver and Camera

separate.

1) Be careful not to make a damage when shield-

cover separate from PBA.

1) Be careful with connector and FPCB of speaker

module.

※ M1.4 X L3


1) Be careful of a damage on LCD connector.

5Detach PBA from LCD bracket. Detach connector and separate Sim socket

FPCB and shield-cover from PBA.

6

7 Loosen a screw on speaker module and

separate the speaker module from PBA.

8 Finished.


7. Level 2 Repair

7-3


1) Be careful not to make a damage to components

by soldering iron.

1) Be careful with PBA.

※ M1.4 X L3


1) Be careful of components near soldering section. 1) Be careful with PBA.

7-1-2. Assembly1 2Soldering and bondinf motor on PBA. Attach speaker module on PBA and tighten a

screw.

3 Attach camera module. 4 Put on Sim socket FPCB and shield-cover on

PBA and attach connector.


7. Level 2 Repair

7-4


1) Adjust the PBA to 2 POINT on Front Ass'y.

1) Push the connector with sound '??' to avoid

incompletion of insert.


1) Be careful of appearance faulty

※ M1.4 X L4.0


5 Put PBA on Front Ass'y. 6Connect LCD and Touch key FPCB on PBA and

tighten screws.

7Attach Rear cover on set and tighten screws.

Documents

Service Manual Samsung Nexus i9023