Samsung Galaxy Grand 2 LTE, SM-G7105 TROUBLESHOOTING GUIDE

Level

8.

Block Diagram

8-1.

Repair

3

MS01 LTE (SM-G7105) BLOCK DIAGRAM

BT/WIFI

ANT

Diplexer

DPX165950
DT-8126A1

EAR

JACK

ANTENNA )

(

LCD
TSP

Main
ANT

FEMID

LMSW54
GM-G27

Duplexer
SAYEY2G53BA0F0A

Diversity

ANT

DIVER

SITY
FEM

D5099

Connectivity

BPF
ACPF-7024

-SG1

XTAL (FA-128-48 MH z)

BLIC

2G Quad Tx

3G B1,2,5,8 Tx

LTE B1,3,5,8 Tx

2G Quad Rx

3G B1, 2,5,8 Rx

LTE B1,3,5 ,8,20 Rx

BT_WIFI_

CLK(48MHz )_OUT

BT_WIFI _

CLK(48MHz )_IN

LED_A_20V

MMMB PAM

LTE B7 Rx

WB1/WB 5/WB 8/

LB3/ LB7/ LB20

Diversity Rx

SAW

SSFFHHGG8899DDAA000022

NFC Ant

HD TFT LCD

SENSOR

SKY77630

B7

PAM

RF7907
TR7

GPS
ANT

BT/WI-FI/FM

WCN3660 A

NFC_ANT

SD/SIM1

5.25"

&

TSP

LTE

B7 Tx

TRANCEIVER

WTR1625L

GPS_RF_IN

SAW

SSFFHHGG8899YYQQ110022

LNA

MXDLN16S

NFC

S3FNRN3

NFC_CLK

MIPI_DSI 0_CLK_M/P(499 NHz)

MIPI_DSI 0_LANE[0:2]_M /P

MIPI_DSI 0_RESET_N

HALL IC

COMPASS

ACCELATOR

RCV

/PROXY

RF

2G
3G
LTE

GPS

GPS_EXT _CTRL

WLAN(IN, IP,QP,QM,DATA ,CTL)

BT_SSBI_ DATA_CTL

FM_DATA_ SSBI

NFC_SDA
NFC_SCL

NFC_EN
NFC_IRQ

NFC FIRMWARE

I2C

XTAL

(27.1 2 MHz)

T_FLASH_ CLK(50MHz

T_FLASH_ CMD
T_FLASH_ D(0:3)

UIM1_CLK (50MHz)

/RST/DATA

LED_A_20V

LED_K1/2

TS_I2C_SCL

TS_I2C_DATA

TS_INT_N

DSI_RST _N

VGH

LCD_PWM _BL

DETECT_

FLIPCOVER

I2C_SCL (192KHz)

I2C_SDA

I2C_SCL

I2C_DATA

ACC_INT

RCV_P/N
ALSP_INT
I2C_SCL

I2C_DATA

MSM

( CP+ AP )

1.2GHz

)

POP

1.5Gb LPDDR 3
SDRAM

RESET_N

SDC1_CLK (200MHz)

SDC1_CMD

SDC1_D(0:7)

SSBI_MSM

PS_HOLD

BBCLK1(19 .2MHz)_MSM

SLEEP_CLK (32.192)

VOL_UP/ DOWN

RFCLK1_19. 2MHz

MUIC

SUB BRD

AUDIO

SLIMBUS _Data

SLIMBUS_ CLK(28.8MHz )

PMIC_AUDIO _REF_

CLK(19.2MHz)

CAM_MCLK (24MHz)

CAM_RESET _N

CAM_I2C_ SDA/SCL

CAM_CSIO_LANE [0:3]

CAM_CSIO_M /P
CIS_SPI_SCLK /SSN
CIS_SPI_MOSI /MISO

VT_CAM_MCLK (24MHz)
MIPI_CSI1 _DATA0_M/P
MIPI_CSI 1_CLK_M/P_F

CAM2_RST _N

CAM_I2C_ SDA/SCL

eMMC 8GB

KLM 8G1WEMB -B 031

PMIC

PM8926

VVOOLL..KKEEYY

UART_BOOT _ON

USB_HS_ D_M/P

CHG_DET
MUS_SDA
MUS_SCL

MUSB_INT

MMAAIINN MMIICC

AAUUDDIIOO CCOODDEECC

WCD9306

8M CAM

VT CAM

XXTTAALL

((1199..22MMHHzz))

T

N

U

I
_

O
_

M
9

M

1

9
1

MM

//
PP
__
CC

II
MM
__
NN

II
AA
MM

CAMERA

PMIC

MOTOR_ P(N)

VCAM_FLASH

PM_KYPD_PWR_N

NN

__
NN
OO

__
GG

II

JJ

DD

II

__
BB
SS

USB_DP

UU

EAR_ADC

SEND_END

SPK_OUT _N
SPK_OUT _P

RCV_P
RCV_N

MMOOTTOORR

Flash LED

DD
XX
TT

//
DD
XX
RR

__
TT
RR
AA
UU

MMUUIICC

TSU6721 YFPR

USB_DM

IFC

CCOOMMPP..

EAR_DET _3.5

EARSPK_ R/L

EAR_MIC_M /P

SSPPEEAAKKEERR

RREECCEEIIVVEERR

PPOOWWEERR

KKEEYY

RR

//

LL

__
SS
PP
VV

EAR_DET_ 3.5

33..55ppii
EEAARR

JJAACCKK

8-1

Confidential and proprietary-the contents in this service guide subject to change without prior notice.

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

PCB Diagrams

8-2.

8-2-1.

Top

TAC501

TAC502

BH403

C532

F200

C229

C228

C221

C213

U201

C206

7
0
2
C

C272

TP_BT_DATA

TP_BT_SSBI

C225

9

3

5
C

OSC200

2

0

2
C

5

C251

1

2

L

U202

Level3Repair

BH400

C616

C647

BH402

C607

0
5
6
C

C617

L601

1
0
6

0

1

0

0

0

0

1

1
_

_
I

I

B

B

S

S

C612

C614

S

S

_

_

C613

P

P

T

T

C635

C648

0

9

6

5

U605

3

3

9

C634

4

C

C

6
C

7
2

R326

6
R

R325

U1018

C385

U1019

R329

C366

C398

C356

C357

C358

UME300

C373

C330

C331

C319

R323

R324

0
0
3
C
D
S
_
P
T

R327

C361

R415

C469

R1012

VR402

9

5

6
3

0

7

C

8

4

4

L

D400

C

C

0

1

6

L602

R

R611

L604

9

0

R612

6
R

C618

1

0
0

U608

0

6

6

D

U

7

3

2

0

2

1
2

3

6

2
6

C

C

0
7
4
C

R430

6

6

2

L

C

0

6

2

2

C626

6

C

6

3
C

C

C602

7

5

4

0

6

0

0
6

6

3

R

R

0

C

6

R510

Q

R603

R335

R339

R348

R336

R340

R342

R341

R337

TAC500

R338

C474

R432R433

1
1

R347

5
R

2

0

5
3

4

4
R

3

2

U

1

1

3

3
R

R

R431

T

P

C475

C473

N

D

I

_

_
C

B

I

S

TP_USB_DM

U

U

M

_

_
P

P

T

8

T

7

2

4

7

4

3

7

7

4

4

C

4

4

C

R

C

L
_
S
P

N

0

O

TP_VPS_R

V

_
T

_

O

P

O
B

T

_
T
R
A
U

4

_
P
T

C476

U

BH408

1

C512

3

4

0

C518

5

5
L

C

L501

C516

4
4
5

C542

C506

C

TP_CODEC_INTTP_CODEC_RST

C507

C511
C543

L508

C540

3
1
5
C

4

6

0

0

5

5

R

R

9
8
3
C

TP_UART_TX

R350

R344

R334

R346

R343

R349

R333

R345

TP_UART_RX

TP_SLIMBUS_CLK

1

1

5

TP_FM_DATA

TP_FM_SSBI

2

7

2

3

3

3

C

C

C

TP_SLIMBUS_DATA

TP_BT_STROBE

2

4

9

TP_WLAN_CLK

TP_WLAN_SET

2

2

4

4

4

7

8

R

R

4

C377

4

4

C

4

4

C413

C

C

C446

9

1

4

5

3

3

C

C

0
6
4

C450

0

1

C

1

1

4

4

C

C

L400

5

0

4

C461

C

C462

6

0

L401

4

R1023

C

R1024

2

8

4
C

3
8

U1017

4

4
1
4

C

R

7
2
4
C

TP_SWIO1

4
2

3

4

1

C453

4
R

C

C421

C426

0

9

2

1
4

4

C

C

4
0

7

1

3

4

0

2

2

OSC201

R

4

4

4

6
0

C

C

R

4
R

C459

C438

C437

C445

C402

L403

C439

4
3
4
C

1
4
4
C

BH405

0

0

0

0

4

4

9

8

2

2

4

T

4

C

C

C

A

S

0

7

B

3

1

3

4

4

4

4

4

C

R

4

4

C

C

C458

O

C436

C454

C456

5

0

3

0

4

4

5

6

C

U

1

1

4

4

C

C

6

2

6
4

0

C

4

5
5

L

4
C

C407

2
1

C409

4
C

C467

C408

U401

0

C433

4
4
C

C414

C457

C442

C425

8

C400

1
4

8

C417

C

6
4
C

C404

8
2
4
R

C403

L404

C422

R429

C237

C200

F201

R201

2
0
2
L

L214

8
1

C219

2

7

5

0

1

2

2

C

R

C

C214

C220

C247

C246

TP_WLAN_D0

7
1
2
C

C216

C209

4
2
2

C210

C

C211

C212

0
0
2
L

1

5

2

0

0

2

4

3

2

2

2

0

2

C

C

2

2

8

C

C

C

0
2

5
6
2

C

C

C203

R314

U205

R315

T
U
O
_
L
L
A
H

TP_ACC_INT_200

_
P

R351

T

8

6

2
C

TP_ACC_INT_201

C368

TH300

SLC602

L515

C509

2

C514

0

C517

C505

5

2
0
5

U

C

C521C523

L502

R503

C378

C384

R318

R319

R316

R317

0
0
3
K
L
C
M
_
M
A
C
_
P
T

5
6
3
C

2
8
3
C

3
8
3
C

3
2
3
C

1
0
4
R

0

1

3

0

1

7

8

6

1

1

3

3

4

3

3

C

C

C

R

R

3
7
2

TP_NFCFW

C249

L216

C

TP_NFC_INT

3

E
L
B
A
N
E
_
C
F

0

N
_
P
T

2

1
6
2
C

2

U

6
2
C

TP_NFC_VDDA

TP_NFC_MON200TP_NFC_MON201

C254

6

5

5

5
3

3

R

R

2
7
3
C

C379

0
0

3
P
C
U

TP_BBCLK300

R420

R320

C355

6

2

8

5

4

2

C

C

L218

C248

L217

C255

C250

3
5
2
C

C633

0

6

6

2

0

0

2

3

6

6

6

6

R

R

C

R631

U604

U

R632

C336

1

2

3

3

3

3

R

R

C375

R359

C337

4

0

4

2

2

0

6

2

2

7

2

5

8

7

3

3

3

3

3

3

3

2

C

C

C

C

C

C

C

5
3
R

1
0
3
H

C260

8

T

9

3

5

5

6

2

2

2

C

C

C

C257

C256

R208

BTC400

ANT500 ANT501

ANT502ANT503

LED400 LED401

BH407

1
8

ZD400 ZD401

5

4

0

C

5

L

7

8

3

3

4

4

R439

R

R

C531

IFC400

2

R607

0

C480

9

0

9

6

C600

D500

L519

U

ZD402

C609

BH404

7
4
C

MIC500

1

3

4

0

1

0

1

0

0

0

0

2

5

5

5

5

5

5

5

L

L

C

C

C

D

D

Z

Z

L406

BH406

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’swritten authorization is strictly prohibited.

Level3Repair

8-2-2.

Bottom

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’swritten authorization is strictly prohibited.

8-3.

8-3-1.

Level3Repair

LOGIC

Power On

Power switch on

NG

Connect the jig box.

Check the current consum

ption

>= 100

mA?

Yes

Check the battery

voltage

>= 3.45?

Yes

Check the GPIO_25

of UCP300-1 PS_H

OLD pin is

1.85

V?

Yes

Check the clock at

OSC400

=19.2

MHz

NO

\

NO

NO

Download

Change the battery

Check the PMIC

relatedtoPS_HOLD

NO

?

Resolder OSC400

Yes

C464(VREG_S1)=1.15V?
C465(VREG_S2)=1.15V?

C466(VREG_S3)=1.3V?
C467(VREG_S4)=2.1V?

NO

Check the voltage and ResolderU

401

Yes

check

the initial operation

Yes

END

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’swritten authorization is strictly prohibited.

NO

8-4

Resolder or Replace UCP300

NO

Change the main PBA

Level3Repair

VREG_S1_1P15

C303

C308

C315

C310

C309

C316 C317

C311

C318

7

1

1

2

3

2

P

P

P

A

A

A

D

D

D

N

N

N

G

G

G

AA16

VDD_CORE

AA18

VDD_CORE

AA22

VDD_CORE

AA24

VDD_CORE

AA30

VDD_CORE

AB21

VDD_CORE

AB23

VDD_CORE

AB27

VDD_CORE

AB29

VDD_CORE

AC14

VDD_CORE

AC16

VDD_CORE

AC24

VDD_CORE

AC30

VDD_CORE

AD13

VDD_CORE

AD15

VDD_CORE

AD21

VDD_CORE

AE14

VDD_CORE

AE16

VDD_CORE

AE18

VDD_CORE

AE24

VDD_CORE

AE30

VDD_CORE

AE32

VDD_CORE

AF21

VDD_CORE

AG18

VDD_CORE

AG26

VDD_CORE

AH21

VDD_CORE

AJ14

VDD_CORE

AJ20

VDD_CORE

AJ26

VDD_CORE

AJ30

VDD_CORE

AK11

PMIC_SPMI_DATA

PMIC_SPMI_CLK

VREG_L6_1P8

C386

C387

7
2
3
R

MSM_RESOUT_N

MSM_RESIN_N

MSM_PS_HOLD

CAM_ANALOG_EN

CAM_IO_EN
MOTOR_EN

MODE_1
MODE_0

TP_MSM_RESIN_N

AT7
AR6
E32
D33
C34
D27
G28

F25
C26
D25
C24
C2

AV31
AU32

RFFE1_DATA
RFFE1_CLK
RESOUT_N
RESIN_N
PS_HOLD
PMIC_SPMI_DATA
PMIC_SPMI_CLK

SPI_CS3_N_BLSP3
SPI_CS3_N_BLSP2
SPI_CS2_N_BLSP3
SPI_CS1_N_BLSP3
SPI_CS1_N_BLSP2

MODE_1
MODE_0

GPIO_100
GPIO_99

// No-Pull_up //

GPIO_112
GPIO_114

{ MPM_interrupt }

GPIO_111

// No-Pull_up //
// No-Pull_up //

{ MPM_interrupt }

GPIO_110

// No-Pull_up //

{ MPM_interrupt }

GPIO_113

}

}

}

}

}

}

}

}

}

t

t

t

t

t

t

t

t

t

p

p

p

p

p

p

p

p

p

u

u

u

u

u

u

u

u

u

r

r

r

r

r

r

r

r

r

r

r

r

r

r

r

r

r

r

e

e

e

e

e

e

e

e

e

t

t

t

t

t

t

t

t

t

n

n

n

n

n

n

n

n

n

i

i

i

i

i

i

i

i

i

_

_

_

_

_

_

_

_

_

M

M

M

M

M

M

M

M

M

P

P

P

P

P

P

P

P

P

M

M

M

M

M

M

M

M

M

{

{

{

{

{

{

{

{

{

6
4
_
O

I
P
G

K
L
C
S
_
4
_
S
2

I
M

9

7

2

8

7

1

9

0

3

4

5

6

4

6

5

4

5

6

_

_

_

_

_

_

_

_

_

O

O

O

O

O

O

O

O

O

I

I

I

I

I

I

I

I

I

P

P

P

P

P

P

P

P

P

G

G

G

G

G

G

G

G

G

K

K

K

L

L

L

S

S

S

C

0

1

0

C

C

W

S

D

D

S

D

W

W

M

_

_

_

_

_

_

_

_

_

2

1

3

3

3

4

4

3

1

_

_

_

_

_

_

_

_

_

S

S

S

S

S

S

S

S

S

2

2

2

2

2

2

2

2

2

I

I

I

I

I

I

I

I

I

M

M

M

M

M

M

M

M

M

0

9

4

3

C

D

A

A

VPH_PWR

VREG_S4_2P1

VREG_L25_2P075

C413C410 C412C411

VREG_S3_1P3

C415C414

C416

VDD_GR1
VDD_GR2
VDD_GR3
VDD_GR4
VDD_GR5
VDD_GR6
VDD_GR7

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’swritten authorization is strictly prohibited.

Level3Repair

8-3-2.

LCD Working

Power Switch On

LCD Display

On?

Yes

NO

LCD FPCB

connector is co

rrectly connecti

ned?

Yes

Correctly connected

NO

C618

LED_P_26V=26V?

Yes

CHECK

LCD DATALINE

LCD_SDA,SCL)

(

Replace U603&Check

D600,L602,L601,L603

NO

Resolder or replace UCP300

NO

Replace or Resolder

&

D600,L602,L601,L603

Yes

Replace LCD

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’swritten authorization is strictly prohibited.

NO

Replace PBA

8-6

Level3Repair

A

L

LCD_ON

LCD_PWM_BL

MIPI_DSI0_DATA3_M
MIPI_DSI0_DATA3_P

MIPI_DSI0_DATA0_M
MIPI_DSI0_DATA0_P

MIPI_DSI0_CLK_M

MIPI_DSI0_CLK_P

MIPI_DSI0_DATA1_M
MIPI_DSI0_DATA1_P

MIPI_DSI0_DATA2_M
MIPI_DSI0_DATA2_P

LCD_PWM_BL

VPH_PWR_BLU

R611R612

VDD_TSP_2.8V

HDC600

22

11

44

55 66

7788

99

10 10

11 11 12 12

13 14

13
15
17
19

23
25 26
27
29

33

C627

14

15 16

16

17 18

18

19

20

20

212122

22

24

23

24

25

26

27 28

28

293330

30

313132

32

33 34

34

NCNC36NC

NC

35

3738

L604

2

1

C

B

N

I
V

CTRL

PWM

U608

D

D

N

N

C

G

N

G

1

2

2

1

C

B

A1

A2 A3

VSN_-5.0V

X
L

VOUT

C
N

VSP_5.0V

TSP_VDD_1.8V

R600

R601 R602

VCC_1.8V_LCD

TS_INT_N
TS_I2C_SC

TS_I2C_SD

DSI_RST_N
LED_A_20V

LED_K1
LED_K2
VGH

C605

D600

C3

S1

B3

S2

C606C604 C607

LED_K2
LED_K1

C647

C622

L603

LED_A_20V

C602

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’swritten authorization is strictly prohibited.

Level3Repair

8-3-3.

TSP

Operate TSP

NG

Check

TSP Connecting

YES

Check

LCD Connecting

YES

Check

VTOUCH_3.0V

NO

NO

NO

Reconnecting TSP

Reconnecting LCD

Resolder or Replace

PM400

YES

Check

TSP_SCL,SDA

YES

Replace LCD

NO

NO

Resolder or Replace

UCP300

Replace PBA

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’swritten authorization is strictly prohibited.

Level3Repair

8-3-4.

Audio Working

Speaker Working



Operate speaker

NG

Signal on in

SPK_OUT_P

SPK_OUT_N?

&

YES

NO

Resolder

ZD507,ZD508

C508,C527

Signal on in

L506,L507

?

YES

Speaker break

down?

NO

Change main PBA

NO

YES

Resolder

L506, L507

Replace PM8226

Change Speaker

NO

Resolder or

Replace UCP300

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’swritten authorization is strictly prohibited.

Level3Repair

_

EAR_ADC_3.5

L523

VDD_MIC_BIAS2_2.8V

R518

R520

EAR_DETECT_MIC

EAR_DETECT_GND

L506

L507

C529

C530

R514

C546

3

4

0

0

5

C545

5

D

D

Z

Z

HDC501

1

2

1

2

334

L509

L510

C534

4

556

6

78

7

8

99

10

10

NC

NC

NCNC

1213

14

11

ZD507

L511
L513

C538

C537

5

6

0

0

5

5

D

D

Z

Z

C535

C536

EARSPK_R
EARSPK_L

R502

R516

C515

ZD508

R517

FM_ANT

L514

HPH_REF

C522

L504

R523

R513

EAR_MIC_3.5

SPK_OUT_P

SPK_OUT_N

R519

EAR_MIC_3.5_P

EAR_DETECT_EARLEFT

C533

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’swritten authorization is strictly prohibited.

Level3Repair

Receiver Working



Operate Receiver

NG

Check

ZD501,ZD502,

C524,C525

YES

Receiver break

down?

NO

Check

UCP300

YES

Change main PBA

NO

YES

NO

Resolder or Replace

ZD501,ZD502,C524,C525

Change Receiver

Resolder or Replace

UCP300

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’swritten authorization is strictly prohibited.

Level3Repair



MICW

orking

Operate MIC

NG

Pollute

MIC Hole?

NO

Signal on in

C501, C503,

C504?

YES

YES

NO

Clean up
MIC hole

Resoldering

C501, C503, C504

MIC

break down

NO

Check Voltage

of

L500

is

1.8V ?

Voltage

YES

CrashU502IC?

YES

YES

Resolder or Replace

MIC

NO

Change UCP300

NO

Change main PBA

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’swritten authorization is strictly prohibited.

Level3Repair

M

MIC500

POWER1POWER

GND1
GND2

OUT

VDD_MIC_BIAS1_1.8V

GND

2

GND

3

OUT

4

L500

L521

MAIN_MIC_

MAIN_MIC_P

C504C503 ZD509

L502

R503

EAR_MIC_M

C521

C513

C501

VDD_MIC_BIAS2_2.8V

R504

R506

C523

ZD510

EAR_MIC_3.5_P EAR_MIC_P

EAR_MIC_3.5_M

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’swritten authorization is strictly prohibited.