08-GT-S7500-TSHOO-7

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 DiagramG

PS

LN

AB

GU

7007

AN

T_S

EL(0

:3)

RFO

UT_

2G

RX_

850/

900

RX

_180

0/19

00

V_B

AT

RTR

_210

0

RX

_900

RX_

GPS

GPS

_LN

A_O

N

VC

-TC

XO

TCX

O_C

LK

TRK_

LO_A

DJ

VR

EG

_RFR

X_2.

7VVR

EG_P

A_2

.1V

VR

EG

_MSM

P_1.

8V

VR

EG

_RFR

X_2

.7V

RX

_I/Q

TX_I

/Q

DAC

_RE

F

SSB

I

TCX

O_C

LK

VR

EG

_TC

XO

_2.8

5V

V_B

AT

BT_

PCM

WIF

I/BT_

TRX

WLA

N_A

CTI

VE

BT_

AC

TIV

EBT

_PR

IOR

ITY

FM_L

/R

BT_U

AR

T

BT_P

WR

VR

EG_M

SM

P_1.

8VV

BT_3

.0V

VREG

_MS

MP_

1.8V

WLA

N_3

.3V

WLA

N_1

.8V

RFO

UT_

900/

2100

PA_

ON

_W90

0/21

00PA

_R0/

R1

(FR

OM

MS

M72

25A

)

SA

W

RX

_210

0

ANT_

SE

L

WIF

I_R

ES

ET

WIF

I_C

MD

/CLK

WIF

I_D

ATA

HO

ST_

WAK

E

FM_A

NT

VR

EG

_MSM

A_2.

6VV

RE

G_M

SM

_DSI

_1.2

VV

RE

G_M

SM

_CS

I_1.

8VVR

EG_P

A_2

.1V

VREG

_MS

M_P

LL4_

1.8V

VR

EG_M

SM_P

LL_1

.1V

VR

EG

_MSM

C1_

1.1V

VR

EG

_MSM

C2_

1.1V

VR

EG_M

SMP_

1.8V

VR

EG

_MSM

E_1.

8VV

RE

G_M

SM

P_2

.85V

VRE

G_U

SB

_1.8

VVR

EG

_US

B_3

.3V

LCD

_RG

B(0

:7)

RG

B888

LCD

_VS

YN

CLC

D_H

SY

NC

LCD

_EN

LCD

_MC

LK

LCD

_BL_

CTR

L

LCD

_SD

O/C

SLC

D_R

ESE

T_N

CA

M_M

CLK

ON

_SW

PS_H

OLD

TOU

CH

_IN

T

PRO

XI_

INT

MIP

I

I2C

FM_R

DS

_IN

T

MU

SB_

INT

MSM

_A(0

:15)

SD

_BA

0/BA

1SD

_DQ

M0:

3S

D_D

QS

0:3

SD

_CKE

1/C

KE2

SD

_CLK

/CLK

_nS

D_C

S1/C

S2

SD_C

AS

/RA

SS

D_W

E

NA

ND

_BU

SY

MS

M_D

(0:3

1)

TSP

_I2C

KBC

(0)

KBR

(1)

KBR

(4)

SEN

SOR

_RD

Y

SIM

1_C

LK/D

ATA

SIM

2_C

LK/D

ATA

RE

SET

/STA

ND

BY

CAM

_EN

PM_I

NT_

N

TRK_

LO_M

SM

CA

M_I

2C

I2C

I2C

PO

N_R

ESE

T_N

TCX

O_E

N

FM_L

/R_B

P

BT_C

LKW

IFI/B

T_C

LK_R

EQ

HPH

_L/R

EA

RS

PK_L

/R

MIC

_P/N R

CV_

P/N

AUX

_MIC

_P/NSSB

I

TX_O

N

SLE

EP_

CLK

SLE

EP

_CLK

VF

VBA

T

EAR

SPP

K_L

/R

SPK

_OU

T

SIM

Soc

ket

SIM

1_R

STS

IM1_

CLK

SIM

1_D

ATA

SIM

2_R

STS

IM2_

CLK

SIM

2_D

ATA

MSM

_D2(

0:15

)

NA

ND

_ALE

NA

ND

_CLE

NA

ND

_CS

NAN

D_O

EN

AND

_WE

VR

EG

_MSM

E_1.

8V

VRE

G_M

SM

P_1

.8V

LCD

_I2C

JIG

_ON

_N

GSM

_PA_

RAM

P+(F

RO

M M

SM

7225

A)

PMIC W

GP

RS

Mod

ule

WC

DM

A PA

M

TRA

NS

CE

IVE

R

Dup

lexe

r

Dup

lexe

r

SAW

Filt

er

SAW

Filt

er

SIM

Sock

et

Cha

rgin

g

I/F

MA

INB

atte

ry

Pow

erM

anag

emen

t

P

art

Cha

rgin

g

VD

D_K

EY

_LE

D

VR

EG

_VIB

_3.3

V

BT

& FM

CO

MB

O

Audi

o I

/F

FEM

SI

MC

ontro

l

Pow

erM

anag

emen

t

P

art

19.2

Mhz

W

iFi

AR

6003

G

MS

M72

27A

ME

MO

RY

(4G

byt

es /

4G b

its)

PMIC

AUD

IO

I/F

Sys

tem

Clo

ck

PM

ICC

ontro

l

4G b

ytes

(eM

MC

)

4G b

its (D

DR

)

LCD

3.6

5” PM

IC

5M

MSM

7227

AG

PIO

_60/

61

I2

C

MSM

7227

AG

PIO

_30/

57

MSM

7227

AG

PIO

_90/

91

MSM

7227

AG

PIO

_35/

40

M

SM72

27A

GPI

O_1

31/1

32

AU

X_I2

C

M

SM72

27A

GPI

O_1

31/1

32

AU

X_I2

C

M

SM72

27A

GPI

O_1

31/1

32

AU

X_I2

C

LDO

CAM

ERA

SCL/

SDA

C-T

ype

TSP

Prox

i Sen

sor

SC

L/SD

A

TRAN

SCEI

VER

SC

L/SD

A

E-C

OM

PASS

SD

I/SC

K

U-U

SB S

witc

h

O

VP

SC

L/SD

A

LCD

3.6

5”

U-U

SB

Sw

itch

OVP

(opt

ion)


Level 3 Repair

8-2


8-2. PCB Diagrams8-2-1. Top

BOTHHOLE40 0

OTHHOLE401

T HHOLE402

BOTHHOLE403

BOTHHOLE404

BT_PCM_CLK

BT_PCM_DIN

BT_PCM_DOUT

BT_PCM_SYNC

BT_U

ART_

RXD

BT_U

ART_

TXD

C10

0

C104

C105

C106

C107

C108

C109

C110

C111

C112

C114

C115

C11

6

C120

C121

C122

C123

C124

C125

C12

6

C12

7

C128

C129

C130

C132

C133

C135

C13

6

C137

C138

C139

C14

0

C14

1

C142

C143

C144

C145

C146

C147

C14

8C149

C151

C152

C15

3

C155

C15

6

C157

C15

9

C16

1

C16

3

C164

C165

C17

3

C175

C177

C17

8

C17

9

C18

2

C18

3

C187

C188

C191

C200

C201

C202

C203

C204

C20

5

C20

6

C207

C208

C209

C212

C214

C218

C219

C220

C221

C22

2

C223

C224

C226

C227

C228

C229

C230

C231

C232

C233

C234

C235

C236

C237

C239

C242

C244

C245

C247 C248

C249

C250

C25

1C

252

C25

3

C256

C25

7

C258

C26

2

C263

C264

C265

C26

6

C26

7

C268

C300

C301

C302

C303

C304

C30

6

C30

7

C308

C30

9

C310

C311

C312

C31 3 C314

C31

6

C317

C318

C319

C320

C321

C322

C323C324

C326

C327

C328

C32

9

C33

0

C331

C332

C333

C33

4C

335

C33

6

C337

C338

C33

9

C340

C341

C343

C344

C345

C346

C347

C34

8

C34

9

C350

C35

1

C352

C400

C40

1

C402

C40

3

C40

4C

405

C406C407

C40

8

C409

C411

C412

C413

C414

C415

C41

6

C41

7

C41

8

C41

9

C42

0

C421

C42

2

C423

C424

C425

C42

6

C42

7

C42

8

C429

C43

0C431

C43

2

C433

C434

C43

5

C43

6

C437

C438

C439

C44

0

C441

C442

C443

C444

C445

C446

C447

C44

8

C450

C451

C45

2

C454

C455

C456

C45

7

C45

8

C459

C460

C461

C462

C463C464

C504

C505

C506

C507

C508

C509

C510

C51

1

C51

3

C516

C51

7

C518

C525

C527

C53

0

C53

1

C532

C60

0

C601

C602

C603

C604

C60

5

C606

C607

C608

C609

C610

C611

C614

C615

C623

C62

4

C625

C626

C627

C628

C629

C630

C631

C632

C633

C634

C635 C636

C637

C638

CD

600

D60

0

F100

F101

F102

F103

F104F105

F200

F203

F204

F205F600

F601

F602

F603

F604

F605

F606

F607

HDC502

HD

C60

2

IFC600

L100

L102

L103

L106

L107

L108

L109

L110

L111

L112

L113

L114

L115

L116

L117

L120

L121

L122

L123L124

L125

L126

L127

L128

L129

L202

L204

L208

L209

L212

L400

L401

L402

L403

L404

L405

L406

L500

L502

L506

L600

L601

L602L603

L604

L605

LED500

LED501

MIC500

OS

C100

OSC200

OSC

400

PAM101

PAM102

PM400

Q400

Q60

0

R100R102

R103

R105

R106

R10

7

R108

R10

9

R110

R115

R20

1

R202

R204

R205

R206

R20

7

R208

R209

R21

1

R300

R301

R304

R305

R306

R307

R310

R311

R312

R313

R314

R315

R316

R31

7

R31

8

R31

9

R320

R321

R322

R323

R324

R325

R326

R327

R32

9

R330

R33

1

R334

R338

R339

R351

R352

R357

R358

R372

R373

R375

R376

R400

R401

R402

R40

3

R407

R409

R410

R41

1

R41

5

R419

R422

R426

R427

R428

R42

9

R434

R437

R44

0R

442

R443

R444

R445

R44

6

R447

R44

8

R449R45

0

R500 R501

R502

R506

R507

R509

R51

0

R512

R51

3R

514

R517

R600

R601

R602

R603

R604

R60

6

R607

R60

8

R609

R610

R611

R612

R613

R61

4

R61

5

R616

R617

R618

R619

R620

R621

R62

2

R62

4

R62 5 R626

R63

3R

634

R635

R636

SC100

SC101

SC102

SC10

3

SC104

SC105

SC106

SC107

SC108

SC109

SLC600

SLC601

SW_HOME500

TAC500

TH300

TP_ANT_SEL[0]

TP_ANT_SEL[1]

TP_ANT_SEL[2]

TP_ANT_SEL[3]

TP_BOO

T_SCU

R

TP_B

T_AC

TIVE

TP_B

T_P

RIO

RIT

Y

TP_CAM_5M_RST

TP

_CA

M_5

M_S

TB

Y

TP_CAM_TX_CN

TP_CAM_TX_CP

TP_C

AM

_TX

_DN

0

TP_CAM_TX_DN1 TP_CAM_TX_DP0

TP_C

AM

_TX

_DP

1

TP_eMCP_CMDm

TP_eMCP_RSTm

TP

_FLA

SH

_INH

IBIT

TP_JIG_ID

TP_L

CD

_B[0

]

TP_LCD

_CS

TP_LCD_EN

TP_LCD

_HSYN

CTP_LC

D_ID

TP_LCD

_PWM

TP_LC

D_R

ES

ET_N

TP_LCD

_SCLTP_LC

D_SD

ATP_LC

D_VSYN

C

TP_PA_ON_W900

TP_P

M_IN

T_N

TP_PMU_GPIO3TP_PMU_GPIO4

TP_SBDT_PMIC

TP_SBDT_RTR6285A

TP_SD_CKE1

TP_SD_CLE2

TP_SD_CLK

TP_S

D_C

LK_n

TP_S

D_C

S1

TP_SD_CS2

TP_S

D_R

ASTP

_SD

_WE

TP_SIM400

TP_SIM401

TP_SLEEP_CLK

TP_TCXO

_EN

TP_TO

RC

H_E

N

TP_T

P_C

AS

TP_T

Qd

TP_USB_ID

TP_VT_RESET

TP_V

T_STB

Y

TP_VT_TX_CN

TP_VT_TX_CP

TP_V

T_TX_D

N0

TP_V

T_TX_D

P0

TP_W

LAN

_AC

TIVE

TP_W

LAN

_CLK

_RE

Q

TP_WLAN_HOST_WAKETP_WLAN_RST TP_WLAN_SD_CLK

TP_WLAN_SD_CMD

TP_WLAN_SD_D[0]

TP_W

LAN

_SD

_D[1]

TP_W

LAN

_SD

_D[2

]

TP_W

LAN

_SD

_D[3

]

TP30

0

TP302

TP305

TP320

TP321

U100

U103

U201 U202 U

203

U20

4

U40

0

U401

U402

U40

3

U404

U405

U500

U502

U600

U60

1

U60

3

U60

5

UCP300

UM

E30

0

VR501

VR504

VR

505

VR

506

VR

507

VR

600

VR

601

VR602


Level 3 Repair

8-3


8-2-1. Bottom

ANT100

ANT101

ANT1

02

ANT2

01

ANT202

BAT4

00

BTC600

C101

C10

2

C10

3

C11

3

C117

C118

C131

C134

C18

0

C18

1

C18

5

C186

C189C19

0

C210

C21

1

C216

C217

C238

C410

C500

C50

1

C502C

503

C512

C514

C515

C519

C520

C521

C522

C52

3

C524

C52

6

C528

C617

C618

C619

C620

D500

D60

1

D602

F201

HDC500

HD

C501

L200

L201

L203

L205

L206

L207

L504

L505

L507

L508

L510

LED600

MAS

TER

_JTA

G_P

AD

MO

T500

R11

2

R137

R308

R309

R404

R406

R412

R413

R431

R436

R503

R504

R50

5 R508

R511

RFS100

SIM600

TP_COMPASS_DRDYTP_COMPASS_INT

U101

U102

U200

U501

VK500

VR502VR503

ZD501

ZD50

2


Level 3 Repair

8-4


8-3. LOGIC8-3-1. Power On

Power switch on

NG

Check the currentconsumption>= 100mA?

DownloadNO

Check the voltage and ResolderPM400

checkthe initial operation

END

Resolder or Replace UCP300

Resolder OSC400

Check the PMICrelated to PS_HOLD

Change the battery

Yes

Yes

Yes

Yes

NO

NOC438(VREG_MSMC1)=1.1V?C437(VREG_MSMC2)=1.1V?C436(VREG_MSME)=1.8V?R447(VREG_MSMP)=1.8V?C425(VREG_MSMA)=2.6V?

Yes

NOCheck the clock atOSC400 = 32KHz ?

NOCheck the GPIO_25 of UCP300 PS_HOLD pin is 2.6V?

NOCheck the batteryvoltage

>= 3.45?

Yes

Change the main PBA

NO


Level 3 Repair

8-5



Level 3 Repair

8-6


8-3-2. LCD Working

Power Switch On

Replace U601 & CheckD600,L602,L603,L605

Yes

NO

YesCHECK

LCD DATALINE(LCD_SDA,SCL)

C605LED_P_26V=26V?

F600, F601, F602,F603, F604, F605,

F606 Resolder

F600, F601,F602, F603,F604, F605,

F606 Correctlymounted?

NOcorrectly connect

NOLCD Display

On?

Yes

Yes

NO

NOResolder or replace UCP300

YesReplace LCD Replace PBA

Replace or ResolderD600,L602,L603,L605&

NO

LCD FPCBconnector is correctly connecti

ned?


Level 3 Repair

8-7



Level 3 Repair

8-8



Level 3 Repair

8-9


8-3-3. TSP

Operate TSP

NG

CheckTSP Connecting Reconnecting TSPNO

YES

CheckLCD Connecting

Change main PBANO

Reconnecting LCD

CheckLCD Connecting

YES

NO

CheckVTOUCH_3.0V

YES

Resolder or ReplacePM400

CheckTSP_SCL,SDA

Resolder or ReplaceUCP300

YES

Replace LCD

YES

NO

NO

NO Replace PBA


Level 3 Repair

8-10


8-3-3. Audio WorkingSpeaker Working

Operate speaker

NG

Check SpeakerConnectorHDC502

Reconnect connectorNO

YES

Speaker breakdown? Change Speaker

Signal on inSPK_OUT_P

& SPK_OUT_N?Resolder

C517,C518VR505,VR506

SPK ASSY

YES

NO

Signal on inC411,C412 ?

ResolderC411,C412

Replace PM400

YES

NO

Change main PBA

NO Resolder orReplace UCP300

YES

NO


Level 3 Repair

8-11



Level 3 Repair

8-12


Receiver Working

Operate Receiver

NG

Check ReceiverConnectorHDC500

Reconnect HDC500

NO

YES

Receiver breakdown?

YESChange Receiver

NO

CheckUCP300

Change main PBA

YES

Check VR502,VR503,R505,C

515,C521Resolder or Replace

VR502,VR503,R505,C515,C521


NO


Level 3 Repair

8-13


MIC Working

Operate MIC

NG

PolluteMIC Hole?

YES Clean upMIC hole

NO

Check Voltageof L502 Voltage

is 1.8V ?

NO

YES

Change main PBA

Signal on inC504, C505 ? Change UCP300

YES

NO

Signal on inC507, C509,

C510?

ResolderingC507, C509, C510

NO

YES

MICbreak down

YESResolder or Replace

MIC

NO


Level 3 Repair

8-14



Level 3 Repair

8-15


Stereo Headset Working

Hands-free stereoheadset

NG

YES Resolder or ReplaceU502Button NG?

NO

CheckL502MIC NG?

NOYESCheck U502

YES

Reconnect HDC501NO

Signal onin C517, C518,

C523SPK NG? Resolder or Replace

C517, C518,C523

YES

YES NO

NO

Signal onin L507,L508

YES

Resolder or ReplaceL507,L508The End

NO

Change Main PBA

YES



Level 3 Repair

8-16



Level 3 Repair

8-17



Level 3 Repair

8-18


8-3-5. KEY WorkingVolume KEY

Press Volume Key

NG

Check the V/KSoldering State

It is OK ?

YES

Resoldering the V/K FPCBNO

Check the V/KFPCB STATE

It is OK ?Change V/K FPCB

NO

YES

Change main PBA

CheckVR504

Resolder or Replace

VR504

NO

YES

CheckKBC(0),KBR(1),KBR(4)

NO Resolder or Replace

UCP300

YES


Level 3 Repair

8-19



Level 3 Repair

8-20


Sub Key

Press Power Keyand Other Sub Key

Power Key NG?Yes

NO

home KeyNG?

Change Volume Key FPCB

Yes

NO

Menu&Back KeyNG?

GO TO 8-3-3.TSP

Yes

NO

Resolder or Replace TAC500

Resolder or Replace VR507, L500

Yes

Resolder or Replace UCP300

Replace PBA

Yes


Level 3 Repair

8-21



Level 3 Repair

8-22


8-3-6. Vibrator Working

Operate Vibrator

NO

Check

Vibrator MotorResolder Vibrator Motor

NO

Yes

No

Yes

VREG_VIB_3.0V

(C428) = 3.0V?Check PMIC (PM400)

Change Main PBA

Check

D500,C500Resolder or Replace

D500,C500

NO

Yes


Level 3 Repair

8-23



Level 3 Repair

8-24


8-3-7. T-Flash Card Working

Insert & OperatemicroSD card

NG

YESCD600break down ? Change CD600

NO

YESChange CD600

12thPin of CD600= High ?

NO

4thPin of CD600= 2.85V ? Resolder or Replace

PM400(PMIC)NO

YES

Change Main PBA

CheckUCP300

NO Resolder or ReplaceUCP300

YES


Level 3 Repair

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Level 3 Repair

8-26


8-3-8. SIM Card Working

ResolderQ400

ChangePM400(PMIC)

YesCheckQ400

SIM ConnectorBreak down?

NOChange SIM600

YES

No

Yes

R607= 3.0V

NG

Resolder SIM600& Neighboring Circuits

Insert & OperateSIM card

Check data,,clk,reset line

Yes


No

Chage PBA


Level 3 Repair

8-27



Level 3 Repair

8-28


8-3-9 CAMERA Working

Operate CAMERA

NG

Camera connectoris correctlyconnecting? correctly connect

NO

Yes

C603 = 2.8VC629 = 1.2VC630 = 1.8VC631 = 2.8V

ChangePM400(PMIC)

NO

Yes

5MP_CAM_MCLK(C632) = 24 MHz ?

Change UCP300or Replace camera

Yes

ChangePBA


Level 3 Repair

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Level 3 Repair

8-30


8-4-1. GSM850 RX**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

Resolder U103 or Change

Check Antenna contact

The End

Yes

Yes

Check L106 = -55dBm ?No

Replace U103

Yes

Normal conditionCatch the channel?

No

Yes

Continuous Rx ONRF Input : 190 CHAmplitude : -50dBm


Level 3 Repair

8-31


8-4-2. GSM900 RX

**If you check the tx chain,Check the not only RF Device but also resistor, inductor and capacitor.

Continuous Rx ONRF Input : 62 CHAmplitude : -50dBm

The End

Check L103 >= -55 dBm?

Normal ConditionCatch the channel?

Yes

Yes

Yes

No

No

Check Antenna Contact


Replace U103


Level 3 Repair

8-32


8-4-3. DCS/PCS RX


Check L116, L120>= -55 dBm?

Continous Rx ONRF Input : 698 CHAmplitude : -50dBm

The End


Yes

Yes

Yes

No

No



Replace U103


Level 3 Repair

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Level 3 Repair

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Level 3 Repair

8-35


8-4-4. WCDMA Band1 RX


Continous Rx ONRF Input : 10700CHAmplitude : -50dBm

The End

Check L126 = -65 dBm?


Yes

Yes

Yes

No

No



Replace PAM101

Check L127= -65 dBm? Replace F102No

Yes


Level 3 Repair

8-36


8-4-5. WCDMA Band8 RX


The End

Check C125 = -65 dBm?


Yes

Yes

Yes

No

No



Replace PAM102

Check C126 = -65 dBm? Replace DUF100No

Yes

Continous Rx ONRF Input : 3013CHAmplitude : -50dBm

CONTINUOUS RX ON

RF INPUT : 3013CH

AMP : -50dBm


Level 3 Repair

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Level 3 Repair

8-38


8-4-6. GSM850/900 TX


Check R102 >= 13dBm?

Check U103 PIN30OUTPUT(RF CONN.)

With HP8960 >= 33dBm?

The End

Yes

Replace U103No

Tx ON (Level :5)Battery voltage:3.8V

Yes

Yes

NoCheck The U100

CONTINOUS TX ON CONDITIONTX POWER DAC:14500 CODE

APPLIEDGSM850 CH : 190GSM900 CH : 62

RBW : 100KHzVBW : 100KHzSPAN : 10MHz

REF LEV. : 10dBmATT. : 20dB


Level 3 Repair

8-39


8-4-7. DCS/PCS TX


CONTINOUS TX ON CONDITIONTX POWER DAC:14500 CODE

APPLIEDDCS CH : 698PCS CH : 661RBW : 100KHzVBW : 100KHzSPAN : 10MHz


Tx ON (Level :5)Battery voltage:3.8V

The End

Check R100 >= 11dBm?

Yes

Yes

Yes

No



Check The U100

Replace U103No


Level 3 Repair

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Level 3 Repair

8-41


8-4-8. WCDMA Band1 TX


Tx ONBattery Voltage: 3.8V

CONTINOUS TX ON CONDITIONTX POWER DAC:120 CODE APPLIED

CH : 10700RBW : 100KHzVBW : 100KHzSPAN : 10MHz


The End



Yes

Check C115 = 26 dBm?

Check C164 = 8 dBm ?

Check C108 = 5 dBm?

Yes

Yes

Yes

No

No

Check the U100

Replace U103

Replace PAM101

No

No

No

Replace PAM101

Replace F102

Yes

Yes

Check L126 = 24 dBm?


Level 3 Repair

8-42


8-4-9. WCDMA Band8 TX


Tx ONBattery Voltage: 3.8V



The End

Check C165 = 8 dBm ?

Yes

Yes

NoCheck the U100

Replace U103

Replace PAM102Check C109 = 26 dBm?

No

No

No

Replace F104

Yes

Yes

Yes

CONTINOUS TX ON CONDITIONTX POWER DAC:120 CODE APPLIED

CH : 3013RBW : 100KHzVBW : 100KHzSPAN : 10MHz


Check C125= 26 dBm?


Level 3 Repair

8-43



Level 3 Repair

8-44


8-4-10. BLUETOOTH

Bluetooth connection disable

Yes

Check BT function ON Enable BT function

No

Yes

Check 19.2Mhz Clock onU201. Check the assembled

status of ANT202

NoCheck OSC100

Check the assembled statusof ANT202

Yes

Exchange ANT202

No

Yes

Check the voltage of U201C200=3.0V

C201,C202,C208=1.8V

NoCheck U201 and change

Resolder or Replace PM400

Yes

Check the UCP300No

Exchange UCP300

Yes

Change PBA


Level 3 Repair

8-45


8-4-11. FM RADIO

Radio does not work

Yes

Resolder or ReplaceC212,C214 and check U201

NoC212, C214 is OK?

(When U201 operate)

Yes

C200 ≥ 3.0V No Resolder or ReplaceC200, PM400

Yes

Change PBA

check ear-jackbreak down?

Yeschange ear-jack

Yes

Check UCP300

Yes



Level 3 Repair

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Level 3 Repair

8-47



Level 3 Repair

8-48


8-4-12. WiFi

WiFi connection disable

Yes

Check WiFi function ON Enable WiFi function

No

Yes

Check 19.2Mhz Clock onU202. Check the assembled

status of ANT202

NoCheck OSC100

Check the assembled statusof ANT202

Yes

Exchange ANT202

No

Yes

Check the voltage of U202L212=1.8V

C227,C247,C248,C249=3.3VC228,C229,C235,C250=1.8V

NoCheck U202 and change

Resolder or Replace PM400

Yes

Check the UCP300No

Exchange UCP300

Yes

Change PBA


Level 3 Repair

8-49



Level 3 Repair

8-50


d


Level 3 Repair

8-51


8-4-13. GPS

Operate GPS

Yes

NoResolder or Replace

U200

Check C210 = High ?

Yes

No


Check C209 >= -53dBm?

Yes

Change PBA

Check ANT201,C211Abnormal

Resolder ANT201,C211

Normal

GPS Signal Input: -50dBm@C211

GPS ANTENNAbreak down?

NO

ReplaceGPS ANTENNA

Yes


Level 3 Repair

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Level 3 Repair

8-53


8-5. Service Schematics

- NC Point(Top View)● : NC

UME300 　　　　　　　　　　　　

　 1 2 3 4 5 6 7 8 9 10 11 12 13 14 　A ○ ● ○ ○ ○ ● ● ○ ○ ○ ○ ○ ● ○ 　

B ● ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ● 　

C ○ ○ ○ ○ ● ○ ○ ○ ○ ○ ○ ○ ○ ○ 　

D ○ ○ ○ ● ○ ○ ○ 　

E ○ ○ ○ ● ○ ○ ● ● ● ○ ○ ○ 　

F ○ ○ ○ ○ ● ○ ○ ○ 　

G ○ ○ ● ○ ● ○ ○ ○ 　

H ○ ○ ○ ● ○ ○ ○ ○ 　

J ○ ○ ○ ● ○ ○ ○ ○ 　

K ○ ○ ○ ○ ● ● ○ ○ ● ○ ○ ○ 　

L ○ ○ ○ 　　　　 ○ ○ ○ 　

M ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 　

N ● ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ● 　

P ○ ● ○ ○ ○ ○ ● ○ ○ ● ○ ○ ● ○ 　

　　　　　　　　　　　　　　

08-GT-S7500-TSHOO-7

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Transcript of 08-GT-S7500-TSHOO-7