Samsung E730 Service Manual Trouble Shooting

7. Flow Chart of Troubleshooting

7-1. Power On

' Power On ' does not work

Yes

Check the Battery Voltage

is more than 3.4V

Yes

Yes

Check the Clock at

R401=32KHZ

Yes

C424(+VDD_IO_LOW) &

C423(+VDD_IO_HIGH) = "H"?

Yes

No

Change the Battery

No

Check the PMU related to VINTC405(VINT) = 2.7V?

No

Resolder OSC400

No

Check the related circuit

C402(+VDD_GSM_CORE)

= 1.8V?

Yes

Check for the clock at C303

= 26MHz

Yes

Check the initial op eration

Yes

END

SAMSUNG Proprietary-Contents may change without notice

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No

No

7-1

Check the +VDD_GSM_CORE circuit

Check the clock generation circuit

(related to U100)

Flow Chart of Troubleshooting

ONKEYN

C405

OSC400

CC7V-T1A

C411

Typical 3.7V

+VDD_RX_TX

+VCC_SYN

+VDD_IMAGE

+AVDD_HFA

+VDD_IO_HIGH

+VDD_IO_LOW

R402

C407

VBAT

+AVDD

V400

R403

R404

C410

C412

C414

C415

C416

C422

C424

C425

C406

C408

SIMD3VBAT

SIMCKCD

_SIMRSCD

1

C409

SIMVCC

SIMIOCD

_REC1

BU_RST

2.9V

37

SCP

38

SCN

39

D3VDD

40

41

42

43

44

45

SIMEN

46

GPO3

47

GPO2

48

GPO1

49

GND

50

GND

51

GND

52

GND

53

NC

54

NC

C413

R405

V401

TP400

+VDD_SLEEP

1.8V

+VDD_IO_LOW

1.8V

SIM_VCC

SIM400

SIM_IO

SIM_CLK

1

6

2

5

3

SIM_RST

C417

C418

C419

C421

C420

4

G78GG

G

910

AUX_ON

SCL

SDA

32KHz_DIGIT

PON_TX

REF_ON

SIMRST

SIMCLK

POS

C426

NEG

31

32

29

30

27

26

25

28

OSCI

REFC

OSCO

_ONKEY

24

RF2VDD

23

RF12VBAT

22

RF1VDD

21

D1VDD

20

LPD1VBAT

19

LPVDD

18

HCVBAT

17

HCVDD

16

D2VDD

15

IOD2VBAT

14

IOVDD

13

_REC2

_RSTHC

MICBIAS

11

10

12

C423

34

33

36

VINT

35

VBAT

VCHG

VSAVE

CPVDD

CPVBAT

CHGDRV

CHGCUR/BATMAX

U400

_SIMRSHC

SIMIOHC

_IRQ

9

SDA

SIMCKHC

PWREN16PWREN2

SCL

CLK32K

7

3

8

5

2

4

MIC_BIAS

2.15V

RSTON

IT_PMU

SIMIO

R406

26M_CLK

C312

+VCC_SYN

R313

R315

+VCC_SYN

U302

5

1

VCC

NC

2

INA

3

4

GND

OUTY

R314

C315

26M_DIGIT

D_REF_CLK

7-2

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7-2. Initial

Flow Chart of Troubleshooting

Initial Failure

Yes

Q300 pin 4 (RSTON) ="H"

Yes

Is U200 R214, R215

OK?

Yes

Check the 16bit data signal

& memory CE

Yes

END

No

Check the circuit related to reset

No

Check the U200

7-3

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Flow Chart of Troubleshooting

+VDD_GSM_CORE

+VDD_GSM_CORE_C

+VDD_IO_LOW

R201

KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
KEY_ROW(4)

KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
KEY_COL(4)

2

K8

J18

E10

E12NCE13

E18

D14

B10

NC

NC

NC

NC

NC

NC1NC

A14

CKI

L15

MCLKSEL

B16

XIN32K

V16

CLK32O

L14

GPIOB11

B15

XOUT32K

G12

RSTBB

U16

RSTEXT

A10

IO0

A11

IO1

B8

IO2

D9

IO3

E7

IO4

D10

IO5

B7

IO6

E8

IO7

G8

IO8

G7

IO9

A8

IO10

D8

IO11

A7

IO12

B9

IO13

A6

IO14

B6

IO15

J7

ADD0_BE0

J8

ADD1_BE2

A9

IO16

A3

IO17

A2

IO18

D1

IO19

A1

IO20

B2

IO21

A4

IO22

B5

IO23

D4

IO24

D5

IO25

B4

IO26

C1

IO27

E4

IO28

E5

IO29

B3

IO30

E6

IO31

A5

ADD18

B1

ADD19

F1

ADD20

E1

ADD21

F4

ADD21

F5

ADD23

G4

WE_E

E2

OE_R_W

K4

CS3

H5

CS1

G2

CS0

J5

BE1

H4

GPIOA8

H7

ADV

L7

GPIOA18

J11

GPIOA12

R1

GPIOB5

P1

GPIOA16

P5

GPIOA19

P7

GPIOB8

R4

GPIOB9

V1

GPIOB10

M5

GPIOA0

U1

GPIOA13

K7

GPIOA14

L8

GPIOA15

K11

GPIOA20

TP222

F2

GPIOB2

TP223

J4

GPIOA7

U4

GPIOA6

A16

KROW0

A18

KROW1

C17

KROW2

B17

KROW3

A17

KROW4

D18

KCOL0

C18

KCOL1

D17

KCOL2

E17

KCOL3

B18

KCOL4

HDP2

HDP0

HDP1

HDP3

HDP4

L12

V17

P15

P18

U15

N17

PIPESTAT(2)

PIPESTAT(0)

PIPESTAT(1)

TRCPKT(0)

TRCPKT(1)

NC

HDP5

HDP6

J14

TRCPKT(2)

TRCPKT(3)

HDP7

R14

TRCPKT(4)

RSTRTC

HDP8

P14

R15

TRCPKT(5)

TRCPKT(6)

H17

HDP9

V15

TRCPKT(7)

BBPWR

HDP10

U6

M4

B11

A13

A15

M15

VDDC

VDDC

VDDC

VDDA2

VDDBB

VDDRTC

HDP11

HDP12

TCKL5TDO

TMS

TDI

TRST

RTCK

L4

K5

F18

V14

N15

G10

G11

+VDD_IO_LOW

L200

+AVDD

R7

C2

U10

P12

VDDC

VDDC

VDDE1

VDDCLK

+VDD_IO_HIGH

+VDD_IO_HIGH_C

+VDD_USB

R200

U2

N2

H9

H2

E9

D6

M9

T17

T18

J12

E14

G15

VDDE1

VDDE1

VDDE1

VDDE1

U11

VDDE2

VDDE2

VDDE2

VDDE2

VDDE2N4VDDE2

VDDE1

VDDE1

VDDE1

VDDE1

U200

GNDC

GNDC

GNDC

JSEL

GNDC

GNDE

GNDC

GNDE

U5

D2

M2

R12

K12

K14

B12

A12

GNDEP4GNDE

GNDE

GNDE

GNDE

GNDE

GNDE

GNDE

GNDE

GNDE

GNDE

P2

J2

D7

G9

F15

E15

M10

H10

D11

D12

+VDD_IO_LOW

C200

+AVDD

+AVDD_HFA

N5

G5

V13

R10

H12

H15

G18

BE3

TXD1

VDDE4

VDDE3

VDDREF

GNDE

GNDE

GNDE

GNDE

V6

U3

P17

U12

R18

VDDVB

VSSBB

M8

GPIOA11

VDDVBO

M7

GPIOA1

P10

GPIOA2

L10

GPIOA10

H8

GPON0

M1

GPON1

R13

RFSIG0

M12

RFSIG1

M11

RFSIG2

V5

GPIOA3

P9

GPIOA4

L11

GPIOA5

R11

RFSIG6

P11

RFSIG7

T2

GPIOA21

R2

GPIOA22

R5

GPIOA23

U18

RFCLK1

R17

RFDO1

G1

GPIOA9

V18

RFEN0

H1

RESET

V10

MCLK

R9

AUXDAC1

R8

AUXDAC2

V11

AUXDAC3

C217

U14

VREF

V12

MICBIAS

V8

QN

V7

QP

U8

IN

U7

IP

J1

AUXADC1

K1

AUXADC2

K2

AUXADC3

L1

AUXADC4

L2

AUXADC5

J17

HFR1

H18

HFR2

K15

EAR1

J15

EAR2

M18

MICN

N18

MICP

L17

AUXMICN

M17

AUXMICP

K18

ANL

L18

ANR

D13

FSC

E11

DCL

B13

DD

B14

DU

N1

GPIOA24

T1

GPIOA25

L9

GPIOA26

U17

SCL

M14

SDA

TP221

P8

GPIOA30

P6

GPIOA27

R6

GPIOA28

G17

SIMCLK

D15

SIMIO

N14

SIMPWR

F17

SIMRST

V2

GPIOA17

V3

GPIOA29

V4

GPIOA31

F14

USBCN

G14

USBDM

H11

USBDP

VSSA4

VSSCLK

VSSREF

VSSA5

VSSVBO

VSSVB

V9

U9

P13

U13

K17

H14

TP225

R218

+AVDD

C213

C214

TP200

TP202

TP203

R203

TP206
TP207
TP208

TP209

R206

TP213
TP215

TP224

TP226

TP227
TP228
TP229
TP230
TP231
TP232

RSTON

TP233

R220

C201

MES_BATT
VF
TEMP_PRODUCT
EAR_ADC

HFR_P
HFR_N
EAR1
EAR2

RTCK

J_SEL

TRSTn
TDO
TDI
TCK
TMS

C202

BT_RST
TXD1

TXD2
RXD2
IMAGE_INT
IMAGE_RESET

REF_ON

BT_INT
PON_TX

EXT2
DCS
KEY_LED_ON

RF_CLK
RF_DATA

RF_EN

RSTEXTn

EDGE1_PA
AFC
RAMP

MIC_BIAS_BB

MIC_N
MIC_P
AUXMICN
AUXMICP

FSC
DCL

R213

NC

DD

DU
R_CONTROL
MELODY_SEL
JACK_EN

END_OF_CHG
FLASH_EN

SIMCLK

SIMIO

SIMRST
EXT1
LCD_BL_ON
CHG_ON

USBCN
USBDM
USBDP

+VDD_IO_HIGH_C

C203

R208

C222

C223

+VDD_IO_LOW

USB Interface

JTAG

R202

R205

R211R210R209

ANL
ANR

DAI & Bluetooth data Interface

+VDD_IO_LOW

C204

C205

C206

STROBE

TP205

IT_PMU
M_INT

CLKBURST

D_REF_CLK

C219

C220

+VDD_IO_HIGH

R214

RX_TX_QN

RX_TX_QP
RX_TX_IN

RX_TX_IP

R215

C207

SCL

SDA

+VDD_GSM_CORE_C

C209

C208

C210

+VDD_IO_LOW

+VDD_IO_LOW +VDD_IMAGE

+VDD_IO_HIGH

R307

RSTON

S_RST_IMAGE

LCD_RESET

S_RST

R309

Q300

S2

D2

4

3

G2

G1

5

2

D1

S1

1

6

7-4

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-5

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-3. Charging Part

Abnormal charging part

Yes

Check the U505 pin 1

> 4.9V

Yes

U505 pin 5 = "L"?

Yes

U505 pin 3 = "L"?

Yes

Check the U505 pin 10

≒ 4.2V

No

No

No

No

Check the circuit related to

V_EXT_CHARGE

Resolder or replace U505

Check the circuit related to

AUX_ON signal

Resolder or replace U505

Yes

END

7-6

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BATTERY CHARGING

V_EXT_CHARGE

5.0V

+VBUS

AUX_ON

CHG_ON

C504

Flow Chart of Troubleshooting

Typical 3.7V

VBAT

+VDD_IO_HIGH

ZD501C503

C506

R511

U502

GND

ICDL

GND

USBON

IMIN

10

BAT

9

8

7

6

R515

1

CRDL

2

USB

3

_PPR

4

_CHG

5

_EN

11

R514

ZD500

R510

R512

C505

Typical 1.4V

MES_BATT

USB_CHG_ONEND_OF_CHG

7-7

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Flow Chart of Troubleshooting

7-4. Sim Part

Phone can't access SIM Card

SIM400 pin 1,5 = "H"?

Yes

No

Check the sim charge pump

Yes

After Power ON,

Check SIMCLK Signal on

pin3 of SIM400 in a few second

Yes

After SIM card insert,

SIM400 pin 2 = "H(SIM_RST)"?

Yes

Check the SIM Card

Yes

END

No

Check the Clock

No

Replace PBA

7-8

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

C406

C408

D3VDD

SIMEN

BU_RST

2.9V

+VDD_SLEEP

37

SCP

38

SCN

39

40

41

42

43

44

45

46

GPO3

47

GPO2

48

GPO1

49

GND

50

GND

51

GND

52

GND

53

NC

54

NC

C413

R405

V401

TP400

C421

1.8V

+VDD_IO_LOW

C418

C419

1.8V

SIM_VCC

SIM_IO

SIM_CLK

SIM_RST

C417

C420

SIM400

1

6

2

5

3

4

G78GG

G

910

AUX_ON

SCL

SDA

32KHz_DIGIT

PON_TX

REF_ON

SIMRST

SIMCLK

POS

NEG

31

32

29

30

27

26

25

28

OSCI

REFC

OSCO

_ONKEY

24

RF2VDD

23

RF12VBAT

22

RF1VDD

21

D1VDD

20

LPD1VBAT

19

LPVDD

18

HCVBAT

17

HCVDD

16

D2VDD

15

IOD2VBAT

14

IOVDD

13

_REC2

_RSTHC

_IRQ

MICBIAS

11

10

12

C423

33

VINT

VBAT

VCHG

VSAVE

CHGDRV

U400

_SIMRSHC

SIMIOHC

SIMCKHC

PWREN16PWREN2

7

9

8

5

C426

34

35

CPVDD

CHGCUR/BATMAX

SDA

CLK32K

3

4

36

CPVBAT

2

SIMD3VBAT

_SIMRSCD

SCL

1

C409

SIMVCC

SIMIOCD

SIMCKCD

_REC1

7-9

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-5. Microphone Part

Microphone does not work

Yes

Check the connection

from MIC

Yes

Check the circuit

from U200 to MIC

Yes

Check U601, U602 PIN 1

= ' H' ?

Yes

Check the MIC

No

No

No

No

Resolder MIC

Resolder the C603, C607, R601, R604

R630, R631

Check the JACK_EN signal

Replace the MIC

Yes

END

7-10

SAMSUNG Proprietary-Contents may change without notice

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Flow Chart of Troubleshooting

MICROPHONE

MIC600

6

78

123

ZD600

MIC_BIAS

Close to microphone

U600

C601

MIC_CP

C605

45

C607

R605

JACK_EN

R606

7

S1

8

1B1

9

VCC

10

S0

11

1B0

12

VCC

C609

6

GND

5

0B1

4

A1

3

GND

2

0B0

1

A0

Close to MCP

C600

L600

L601

MIC_BIAS

MIC_BIAS_BB

R600

R601

C603

R602

C606

R603

R604

C602

MIC_P

C604

MIC_N

C608

7-11

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Flow Chart of Troubleshooting

7-6. Speaker Part(Melody)

Speaker does not work

Yes

Check the U602

Pin 3, 15

Yes

Check the U604 Pin 5

U300 pin 17,18 ≒ 1.8V?

Check the R714, R715

(EAR1)

Yes

(When U300 operate)

Yes

No

Check the U300

No

Check the U604 Pin 1 (LOUD_EN),

Resolder U604

No

Resolder U300

No

Resolder U602

Yes

Check LCD MODULE

SPK+, SPK-

= Operate

Yes

Is Speaker working?

Yes

END

No

No

Check the board to board

Change the Speaker

7-12

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This Document can not be used without Samsung's authorization

Connector

CN700

1

1
3
5
7

9

11
13
15
171718
19
21
23
25
27
29
313132
33
35
37
39
41 42
43 44
45 46
474748
49
51
535354

5555 5656

60

59

60

2

4
6
88

10
12
14
16

20
22
24
26
28
30

34
36
38
40

50
52

57

57

585859

3
5
7
9
11 12
13 14
15

19
21 22
23 24
25 26
27 28
29

33 34
35 36
37
39
41
43
45

49
51

Flow Chart of Troubleshooting

2
4
6

10

16
18
20

30
32

38
40
42
44
46
48
50
52
54

C707

C709 C710

C711 C713C712

C714 C715

C708

C716

R714

R715

R716

Y(0)
Y(1)
Y(2)
Y(3)
Y(4)
Y(5)
Y(6)
Y(7)

FLASH_EN

STROBE

S_RST_IMAGE

M_CLK
M_SCL
M_SDA
PCLK
VSYNC
HREF

+VDD_IO_HIGH

OLED_EN

+VDD_IMAGE

LCD_BL_ON

DIM_EN

SPK_N
SPK_P

2.9V

1.9V

26M_DIGIT

M_INT

RSTON

R300

+VDD_IO_HIGH

C303

HPL

HPR

C302

R302

R304

+VDD_IO_LOW

32

34

G

1

CLKI

2

LED

3

/IRQ

4

/RST

5

NC

6

PLLC

7

VDD

8

VSS

9

VREF

G

C301

35

30

31

/RD

IOVDD

HPOUT-L/MONO

HPOUT-R

10

11

29

A0

EQ1

12

C307

R305

/CS

U300

EQ2

13 14

/WR

EQ3

27

28

R303

26

D0

SPOUT2
SPOUT1

SPVDD

15 16

D1

MTR

SPVSS

C306

D2

D3

D4

D5

D6

D7

R306

C300

OEn

HA(1)

CS5n_MELODY

WEn

HD(0)

HD(1)

HD(2)

HD(3)

HD(4)

HD(5)

HD(6)

HD(7)

VIB

AMP_N

AMP_P

VBAT

EARP_HF

HFR_P

MELODY_SEL

AMP_N

SPK_N

Typical 3.7V
VBAT

SPK_P

AMP_P

AFR

14

13

16

17

15

V+

D1

GND

21

NC

22

NC

1

1S2

2

1-2IN

3

2S1

4

D2

5

HFR_N

2S2

4S2

1S1

12

D4

U602

GND

6

11

4S1

10

3-4IN

9

3S2

D3

3S1

8

7

HPL

ANL

ANR

HPR

R_CONTROL

AFL

LOUD_EN

TP301

TP302

33

G

25

24

23

22

21

20

19

18

17

G

36

C304

C305

C311

MELODY IC

7-13

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-14

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This Document can not be used without Samsung's authorization

7-7. Key Data Input

Check Initial Operation

When one of the keys is

pushed,

Isn't it displayed on LCD?

Yes

Yes

No

Flow Chart of Troubleshooting

Check the Dome sheet & Key Pad

When one of the keys is

pushed,

KEY_ROW(0,4),
KEY_COL(0,4)

signal is OK?

Yes

END

No

Resolder V702, 703, 704, 705, 706

& Replace the PBA

7-15

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

KEY_COL(0:4)

KEY_ROW(0:4)

+VDD_IO_HIGH

FLIP KEY_ROW(2)_M

KEY_COL(4)
KEY_COL(3)
KEY_COL(2)
KEY_COL(1)
KEY_COL(0)

KEY_ROW(0)

KEY_ROW(1)

KEY_ROW(2)_M

KEY_ROW(3)

KEY_ROW(4)

1

IN

2

V+

3

GND

U701

COM

6

NO

5

4

NC

KEY_ROW(2)

KEY_ROW(2)_K

STAR1

12

DIGIT0

12

SHARP1 INT

12 2

CAMERA

DIGIT7

1

DIGIT9

12

DIGIT8

12

V_UP

V_DOWN

2

DIGIT4

12

12

12

12

12

DIGIT6

LEFT

DOWN

SOFT1

12

12

12

12

12

DIGIT1

DIGIT3

RIGHT

UP

SEND

1

DIGIT5

12

1

SOFT2

12

1

DIGIT2

CLR

KEY_MAP

1

KEY_ROW(3)

KEY_ROW(4)

KEY_COL(1)

V702

V703

V704

5

6

123

4

ZD701

V_UP

2

V_DOWN

3

V_COMMON

4

GND

2

2

VOL700

SIDE_KEY

KEY_ROW(3)

KEY_COL(0)

C408

V705

456

78

1

23

V705

ZD700

1

2

3

V706

ZD700

CAMERA_KEY

V706

VOL701

IN

OUT

GND

ONKEYN

12

END

END_KEY

ZD701

V703

V702

7-16

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V704

7-8. Receiver Part

Receiver does not work

U602 pin 1,5 = 1.5V?

U602 pin 4,16 = 1.5V?

Flow Chart of Troubleshooting

Yes

No

Resolder U200 or change PBA

Yes

No

Resolder or replace U602

Yes

CN700 pin 52, 54= 1.5V?

Yes

LCD MODULE

SPK +,- PAD = 1.5V?

Yes

Check the soldering of the

spaeaker wire

Is Receiver working?

Yes

No

No

No

No

change U200

Change the Board to Board Connector

Modify the speaker wire soldering

Replace the Speaker

Yes

END

7-17

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Flow Chart of Troubleshooting

HFR_P

MELODY_SEL

AMP_N

SPK_N

1

21
22

2
3
4

NC
NC

1S2
1-2IN
2S1
D2

Typical 3.7V
VBAT

SPK_P

AMP_P

AFR

14

15

U602

1S1

GND

7

V+

3S1

8

13

3-4IN

4S2

4S1

3S2

D3

D4

11

12

10

ANR

HPR

R_CONTROL

9

AFL

LOUD_EN

16

17

D1

GND

2S2

6

5

HFR_N

HPL

ANL

7-18

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7-9. Back Light (for Color Main LCD)

Backlight does not work

Yes

Is LCD Contrast set on high

level in the Menu?

Yes

Flow Chart of Troubleshooting

No

Set LCD Contrast on high level

IC2 pin 3 = H ?

Yes

IC2 PIN 1 ≥ Vbat ?

Yes

Replace the LCD Module

Yes

END

No

No

Change the board to board

Connector

Check the U601 & the related circuit

7-19

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

VBAT

2

3

C

C

7-20

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7-10. Key Back Light

Main Key LED does not work

U700 pin6 = "H"?

END

Flow Chart of Troubleshooting

Yes

No

Check the U200 related to "KEY_LED_ON"

Yes

KEY_LED_ON

Typical 3.7V

VBAT

U700

6

CE

5

GND

4

NC

VDD

GND

VOUT

1

2

C700

R700

3

56

LED705

R701
56

LED706

R702
56

LED702

R703
56

LED703

R705
56

LED700

R706
56

LED707

R707
56

LED708

R704
56

LED704

R708
56

LED701

R709
56

LED709

R710
56

LED710

R711
56

LED711

AOT-0603P-W03-X

KEY_LED

7-21

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Flow Chart of Troubleshooting

7-22

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This Document can not be used without Samsung's authorization

7-11. Camera part

"Camera" function does not work

Flow Chart of Troubleshooting

Yes

Check the Camera

connector on Slide PCB

Yes

CN2 Pin 19, 22 = 2.8V?

Yes

C314 = 26MHz?

Yes

Is there another problem?

Yes

Replace the camera

module

No

No

No

Reconnect the camera module

Check the U400 ( or IC5)

Check U302(pin2, pin4) related to

26Mhz

and R303

END

7-23

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

HD(0:15)

HD(0)
HD(1)
HD(2)
HD(3)
HD(4)
HD(5)
HD(6)
HD(7)
HD(8)
HD(9)
HD(10)
HD(11)
HD(12)
HD(13)
HD(14)
HD(15)

TP309

S_RST

LCD_MAIN_CS

LCD_SUB_CS

L_RD
L_WR
Y(0:7)

U305

M8

DVSS

F10

DVSS

L5

DVSS

K2

DVSS

J10

DVSS

H9

DVSS

F3

DVSS

D3

DVSS

C9

DVSS

C8

DVSS2

B3

DVSS

A7

DVSS

M5

DVSS

D2

MD0

E1

MD1

E2

MD2

E3

MD3

F1

MD4

F2

MD5

G1

MD6

G2

MD7

H1

MD8

H2

MD9

H3

MD10

J1

MD11

J2

MD12

J3

MD13

K1

MD14

K3

MD15

B1

GPIO8/MD16

B2

GPIO7/MD17

C2

GPIO6

C4

GPIO5

C5

GPIO4

C7

STROBE/GPIO3

D8

GPIO2

D10

GPIO1

E9

GPIO0

K5

RS

LRS

K6

LCS1

L6

LCS2

M6

LREN

M7

LWEN

DI0

A3

Y(0)

DI1

B4

Y(1)

DI2

A4

Y(2)

DI3

B5

Y(3)

DI4

A5

Y(4)

DI5

B6

Y(5)

DI6

A6

Y(6)

DI7

B7

Y(7)

LD0
LD1
LD2
LD3
LD4
LD5
LD6
LD7
LD8

LD9
LD10
LD11
LD12
LD13
LD14
LD15
LD16
LD17

MINT
MWEN
MREN

MCS
MA0
MA1

CLKI

CLKO

SMCLK

PCLK

HREF

VSYNC

SDA
SCL

RESET

MVDD
MVDD

RVDD
RVDD
LVDD
LVDD
SVDD
SVDD
CVDD
CVDD
CVDD
CVDD

NC

NC

M10
M9

K10

C3
G3
E8
K4
D9
B8
A2

C6

L10

K9
K8
K7

H8
G9
G8

M3
M4

L2
M2
M1
L1
D1
C1

G10
H10
C10
A8
A9

B9
A10

B10

A1

L3

L4

L7
E10

L9
L8

J9
J8

F9
F8

1
2

LD(0)
LD(1)
LD(2)
LD(3)
LD(4)
LD(5)
LD(6)
LD(7)
LD(8)

LD(9)
LD(10)
LD(11)
LD(12)
LD(13)
LD(14)
LD(15)

+VDD_IO_LOW

R318

+VDD_IO_HIGH

+VDD_GSM_CORE

C319

+VDD_IMAGE

R310

+VDD_IO_HIGH

C318

R311

C316R317

LD(0:15)

IMAGE_INT
WEn
OEn
CS3n_IMAGE
HA(1)
HA(2)

26M_DIGIT

M_CLK
PCLK
HREF
VSYNC
M_SDA
M_SCL

IMAGE_RESET

6

5

C

C

7-24

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Flow Chart of Troubleshooting

7-25

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-12. FM RADIO

"FM Radio" function does not work

Yes

Check the Insert

Earphone

Yes

R624 = 2.8V

Yes

U603 TP605 = 'H'

Yes

Replace the U603

END

No

No

No

Insert the Earphone or Change the

Earphone

Check the U603

Check U200

7-26

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C618

C619

Flow Chart of Troubleshooting

C620

R_ANT

SCL

SDA

32KHz_OUT

R_INT

R618

TP603
TP604
TP605

TP606

C621

C622

R617

C625

C626

L605

A4
E7
D2
A7
B2
B7
F2
C7
D6
F7
C2
G1
F6
E6
G7
A2
A3
A1
G4

CD1
CD2
CD3
CLOCK
CPOUT
DATA
AGND
DGND
DGND
DGND
RFGND
FREQIN
INTCON1
INTCON2
INTX
LO1
LO2
LOOPSW
MPXOUT

U603

BUSENABLE

CAGC
RFIN1
RFIN2

SWPORT

TIFCENTER

TMUTE

VAFL

VAFR

VREFDIG

XTAL

VCC
VDD

L604

A6
B1
D1
C1

A5
G2
G6

F4

G5

E1

D7

B6

F1

B4

NC

G3

NC

1

NC

2

NC

R620

R621

C627

R619

C624C623

R624
0

TP600

TP601
TP602

C628

2.9V

+VDD_IO_HIGH

BUSENABLE

SW_PORT

AFL
AFR

7-27

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Flow Chart of Troubleshooting

7-13. BLUETOOTH

BLUETOOTH does not work

R316 = 'H'

Replace ANT300

Yes

No

Check the U200

Yes

No

Replace U301

END

Yes

7-28

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This Document can not be used without Samsung's authorization

ANT300

13 2

U301

Flow Chart of Troubleshooting

+VDD_IO_LOW

L300

C314

C313

BT_INT

TXD2
RXD2

BT_RST

TP310
TP311

TP312
TP313

B6

0R316

VCC

B5

VCC_IO

B3

UART_CTS/USB+

A4

UART_RTS/USB-

B2

UART_RxD

B1

UART_TxD

C5

RESETB

A3

X_IN

C4

AIO0

E6

RF_IO

D4

PIO0

E4

PIO1

F4

PIO2

D5

PIO3

E3

PIO4

D3

PIO5

B4

PIO8

PCM_OUT

PCM_SYNC

VDD18V

SPICLK

SPICSB
SPIMISO
SPIMOSI

PCMCLK

PCM_IN

GND
GND
GND
GND
GND
GND
GND

C6

E2
F3
F2
E1

D1
D2
C1
C2

A5
A6
C3
D6
E5
F1
F5

1

NC

2

NC

A2

NC

BLUE TOOTH

TP314
TP315
TP316
TP317

C317

DCL
DD

DU
FSC

7-29

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-14. GSM Receiver

RX ON

RF input : 62CH

Amp : -50dBm

Yes

Module1 pin8

>= -65dBm

Yes

Module1 pin1, pin2

>= -65dBm

Yes

U100
E1 >= -70dBm
F1 >= -70dBm

Yes

U100 H7,H8,J7,J8

>= 1V

Yes

C219, C220

>= 1V

No

Resolder CN100, C101

No No

No

Resolder C106, C108, L107

No

Check Module1

pin9,pin10,pin12 = L

Yes

Check U100

J2,A6,B6,A9,E9

>=2.7V

Yes

No

Check ANT Switch

control circuit

Resolder Module1

Check & Resolder

U100, R114, R116

RF26MHz, RF PSU Part

Resolder U100

Yes

Check U200

END

7-30

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This Document can not be used without Samsung's authorization

7-15. GSM Transmitter

TX ON (5Level)

Yes

Flow Chart of Troubleshooting

Module1 Pin8

>= 20dBm

No

Module1 pin11

>= 18dBm

No

U101 pin8
>= 18dBm

No

U101 7pin

>= -11dBm

No

U100 H7,H8,J7,J8

>= 1V

Yes

Yes

Yes

Yes

No

Resolder CN100, C101

Check Module1

pin10 = H (2.68V),

pin9, pin12 = L

Yes

Resolder R122

Check U101

+VBAT, pin4, pin6

OK?

No

Check U100

J2,A6,B6,A9,E9

>=2.7V

No

Yes

Check ANT Switch

control circuit

Change or Resolder

Module1

Resolder or Change U101

Check +VBAT or U101

control signal

No

Check & Resolder

U100, R114, R116

RF26MHz, RF PSU Part

Yes

Check U200

END

Yes

Resolder U100

7-31

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-16. DCS Receiver

RX ON

RF input : 698CH

Amp : -50dBm

Yes

Module1 Pin8

>= -65dBm

Yes

Module1 pin3, pin4

>= -65dBm

Yes

U100
D1 >= -70dBm
C1 >= -70dBm

Yes

U100 H7,H8,J7,J8

>= 1V

Yes

C219, C220

>= 1V

No

No

No

No

Resolder CN100, C101

Check Module1

pin9,pin10,pin12 = L

Yes

Resolder C104, C105, L104, L105

Check U100

J2,A6,B6,A9,E9

>=2.7V

Yes

No

No

Check ANT Switch

control circuit

Resolder Module1

Check & Resolder

U100, R114, R116

RF26MHz, RF PSU Part

Resolder U100

Yes

Check U200

END

7-32

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7-17. DCS Transmitter

TX ON (0Level)

Yes

Flow Chart of Troubleshooting

Module1 pin8

>= 20dBm

No

Module1 pin13

>= 18dBm

No

U101 pin9
>= 18dBm

No

U101 pin1

-11dBm

>=

No

U100 H7,H8,J7,J8

>= 1V

Yes

Yes

Yes

Yes

No

Resolder CN100, C101

Check Module1

pin12 = H (2.68V),

pin9, pin10 = L

Yes

Resolder L110, C117, L112, C139

Check U101

+VBAT, pin4, pin6

OK?

No

Check U100

J2,A6,B6,A9,E9

>=2.7V

OK?

Yes

No

No

Check ANT Switch

control circuit

Change or Resolder

Module1

Resolder or Change U101

Check +VBAT or U101

control signal

Check & Resolder

U100, R114, R116

RF26MHz, RF PSU Part

Yes

Check U200

END

Yes

Resolder U100

7-33

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

7-18. PCS Receiver

RX ON

RF input : 661CH

Amp : -50dBm

Yes

Module1 pin8

>= -65dBm

Yes

Module1 pin5, pin6

>= -65dBm

Yes

U100
B1 >= -70dBm
A1 >= -70dBm

Yes

U100 H7,H8,J7,J8

>= 1V

Yes

C219, C220

>= 1V

No

No

No

No

Resolder CN100, C101

Check Module1

pin9= H

pin10, pin12 = L

Yes

Resolder C115, C116, L108, L109

Check U100

J2,A6,B6,A9,E9

>=2.7V

Yes

No

No

Check ANT Switch

control circuit

Resolder Module1

Check & Resolder

U100, R114, R116

RF26MHz, RF PSU Part

Resolder U100

Yes

Check U200

END

7-34

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7-19. PCS Transmitter

TX ON (0Level)

Yes

Flow Chart of Troubleshooting

Module1 Pin8

>= 20dBm

No

Module1 pin13

>= 18dBm

No

U101 pin9
>= 18dBm

No

U101 pin1

-11dBm

>=

No

U100 H7,H8,J7,J8

>= 1V

Yes

Yes

Yes

Yes

No

Resolder CN100, C101

Check Module1

pin12 = H (2.68V),

pin9, pin10 = L

Yes

Resolder L101, C117, L112, C139

Check U101

+VBAT, pin4, pin6

OK?

No

Check U100

J2,A6,B6,A9,E9

>=2.7V

OK?

Yes

No

No

Check ANT Switch

control circuit

Change or Resolder

Module1

Resolder or Change U101

Check +VBAT or U101

control signal

Check & Resolder

U100, R114, R116

RF26MHz, RF PSU Part

Yes

Check U200

END

Yes

7-35

SAMSUNG Proprietary-Contents may change without notice

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Resolder U100

Flow Chart of Troubleshooting

G2

GSM0GND

G1

GSM0LNAI

EGSM_RX_N

H1

E1

GSM1LNAI

NC

R120

R121

EGSM_RX_P

F1

GSM1LNAIBF2GSM1GSM0GND

1NC2

PCS_RX_N

PCS_RX_P

RX_TX_IN

RX_TX_IP

RF_EN

R119

H7

H9

C2

A1

J7

LE

IOUT/IINJ8GSM0LNAIB

IOUTB/IINBH8QOUTB/QINB

PCSDCSGND

PCSLNAIBB2PCSGND

PCSLNAI

GNDMASH

GNDBUF1

GNDBUF2

GNDLNA

GNDCLK

GND

GND

GND

E2

E8

B8

C3

C9

A2

J1

B1

J9

RX_TX_QP

QOUT/QIN

GNDOPLL

H2

C138

R118

RX_TX_QN

RF_DATA

SDATA

GNDRFSYN

B7

F9

GNDTXVCODH4GNDTXVCOB

2

GND

OUT

3

R117

B9

TCXOIN

GNDTXVCOG1

H3

H5

AFC

VCON

GSM_TX

DCS_TX

J4

TXOUTDJ5TXOUTG

GNDTXVCOG2

CAPI

J6

RAMP

VBAT

TXON

DCS

R109

GND5

VBATT4

DCS/PCSOUT

GSMOUT

GSMIN

9

8

L109

PCS_RX_N

3 TXEN

7

C117

2
BAND

DCS/PCSIN

1

C116

C115

7

U101

C112

C113

C114

G

L108

PCS_RX_P

C111

13
DCS|PCSTX

PCS_RX2

6

VC110

PCS_RX1

5

C109

C110

12 VC2

VC39

EGSM_RX12EGSM_RX2

1

15nH

C108

EGSM_RX_N

R108

11 EGSMTX

DCS_RX2

4

L107

0

VC3

ANT

DCS_RX1

3

C107

R122

VC2

VC1

8

LMG003W-5108A

C106

EGSM_RX_P

R106

R107

MODULE1

C105

L105

C104

DCS_RX_N

C121

R110

C120

C123

R116

1

U102

VCC

4

C134

C136

E9

A9

A7

VCCCLK

VCCBUF

VCCBB

CAPQB

CAPIB

CAPQ

B4

B5

A4

A5

C135

C137

VCCLNA

CLK

A3

F8

G8

VCCMASH

VCCMIX

CLK2CONT

CLKOUT1

C8

B3

G9

R114

0

C132

C133

B6

A6

A8

J2

VCCOPLLJ3VCCTXVCO

VCCTXVCOG

VCCRFSYN

VCCRFVCO

VCCRFLO

DCSGSM1GND

DCSLNAIB

CLKOUT2

DCSLNAI

DIVON

D2

D8

D9

C1

D1

TP100

0

+VCC_SYN

C125

C128

C126

C129

C127

H6

U100

R112

C130

C131

C124

+VDD_RX_TX

+VCC_SYN

+VDD_SLEEP

R111

+VCC_SYN

2.8V

C118

C122

13

2

F100

6 VRAMP

10

GND

L110

C139

L112

DCS_TX

L104

DCS_RX_P

GSM_TX

C103

C100

R105

R101

R103R102

R104

ANT100

L100

J_ANT

L102

ANT101

0

R100

L101

1

CN100

KMS-512

2

A

3

CG

C101

4

G

L103

C102

R115

0

26M_CLK

RF_CLK

DCS_RX_N

DCS_RX_P

7-36

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Flow Chart of Troubleshooting

7-37

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Flow Chart of Troubleshooting

7-38

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization