Samsung B300 Troubleshooting

10. Flow Chart of Troubleshooting

10-1.

10-1-1.

Baseband

Power ON

Power On' does not work

'

Check the current consumption

Yes

Current consumption

Check the Vbat Voltage

Voltage

Check the pin of

Pin#J12

>= 100

mA

Yes

>=3.3V

Yes

>= 2.8V

Yes

U300

No

No

No

Download again

Charge the Battery

Check

U300

and

C313

Pin#A13 and

pin#A14

Checktheclocksignalatpin#21of

Freq
Vpp>=400
Vpp

Checktheclocksignalatpin#

Freq

Check the initial operation

=26

≒

=13

600

=2.8V

Yes

MHz

mV

mV

Yes

MHz

Yes

5,#6ofU101

U100

No

No

No

pin#G11

Check the clock generation circuit

Check U101

=

1.8V

Yes

related to OSC

(

No

101)

Check U300and

C314

END

10-1

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

T
H
2
0

R108

C
4
0
1

ANT

GSM_RX

GSM_TX

DCS_RX

DCS_TX

FM_RADIO
SPK

MAIN_MIC

EAR_SPK
EAR_MIC

POWER_ON

SIM

CHARGING

LCD

MOT

CLK

0

C213

R111

R107

R106

R

C

4

4

0

0

3

3

CP_WEN

C131

C130

V

V

C

R

R

4

4

4

0

0

0

2

0

1

VCCD_2.9V

VCCA_2.9V

C

C

1

1

3

3

2

3

L
1

U101

1
0

C

R

4

4

0

2

0

9

VCCD_2.9V

C

R

R

3

4

C310

C206

4

C
4
1
0

R
4
1
8

R
4
2
0

1

0

0

7

2

4

C300

3

0

0

U

C

C

C

C

C

3

3

1

1

1

2

3

3

1

1

3

9

8

0
3

C
4
0

C

O

1
0
4

F
1
0
0

C118

0
0
1

U

C

C

C

1

1

1

2

2

2

6

8

9

R
1
0
4

R101

C102

C

C

1

1

C134

0

0

0

1

C135

C116

C114

C

C

1

1

0

0

5

6

L

L

1

1

0

0

1

6

C117

R102

C107

R103

C110

L105

C

C

C

1

1

1

1

2

2

C

5

5

7

1
2
0

L108

C103

1

0

1

C

S

5

R

R430

4
1
2

C407

R

C

4
1

4

1

4
1

C313

C
3
0
1

C314

R
5
1
9

C308

C309

C
2
2
1

R211

Q300

C

C

C

3

3

3

1

0

1

5

2

6

VBAT

DSP_DB(0:15)

DSP_AB(0:8)

DSP_RWN

FLASH_RESET

BAND_SEL1
BAND_SEL2

VMOD_EN

SERDAT
SERCLK

DSP_IO

FM_EN

TX_EN

SERLE

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

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

DSP_IO

C300

C302

0

3

0

0

6

7

8

9

1

9

1

7

8

1

2

J

H

J

K

H

H

H

J

J

5

6

5

9

6

7

0

1

2

3

4

1

1

1

1

1

1

1

1

S

C

C

S

S

S

S

S

S

S

S

D

N

N

D

D

D

D

D

D

D

D

N

N

N

N

N

N

N

N

N

G

G

G

G

G

G

G

G

G

D2

DB15

D3

DB14

E3

DB13

E2

DB12

F3

DB11

F2

DB10

F1

DB9

F4

DB8

G4

DB7

G3

DB6

H5

DB5

J6

DB4

J5

DB3

K3

DB2

K2

DB1

K1

DB0

K5

AB8

K7

AB7

M1

AB6

M2

AB5

N2

AB4

N1

AB3

L5

AB2

P1

AB1

K6

AB0

L3

I|O

L2

RWN

R3

RESETN_CSP

E6

NC4

C5

OCTL1

F5

OCTL2

E5

NC

A4

OCTL4

G6

OCTL5

B3

OCTL6

A3

OCTL7

B1

SERLE1

A2

SERLE2

C1

SERDA

C2

SERCK

P

N

P

1

2

N

P

F

A

F

I

I

Q

Q

T

E

E

X

X

X

X

U

T

T

R

T

R

T

C

P

X

A

X

X

A

X

F

O

X

A

T

R

R

A

R

R

R

R

1

7

9

6

6

7

5

6

7

1

E

B

B

D

D

D

C

C

P

P

P

P

N

C

C

N

I

I

A

F

P

Q

Q

X

C316

X

T

A

A

X

X

T

T

U

T

V

T

R

R

O

R

R

A

3

0

1

7

8

9

1

1

4

6

1

4

6

7

8

9

1

1

D

F

C

A

P

F

L

F

F

F

B

G

G

G

G

8

L

1

2

3

L

4

5

6

7

8

S

S

D

D

N

N

G

G

B

B

V

V

T

T

S

S

S

S

S

S

C

D

D

D

D

C

C

D

D

D

D

D

D

N

N

D

N

D

O

N

N

N

N

O

N

N
G

V

V

G

G

_

_

G

G

G

G

G

D

D

N

D
V

G

U300

N

P

N

P

T

T

N

N

P

T

T

N

P

N

P

U

N

U

P

A

B

B

M

U

U

K

N

N

N

T

T

T

N

N

G

G

I

I

O

O

C

I

I

O

O

C

U

U

U

O

O

O

A

A

A

2

2

2

1

1

1

P

N

R

P

N

N

B

B

A

T

T

T

U

U

U

O

O

O

A

A

A

R

E

I

E

I

X

X

X

X

V

C

C

C

C

I

I

I

I

A

A

R

X

R

U

U

U

U

D

V

V

V

D

A

A

A

M

M

A

M

M

4

3

4
1
N

6

3

5

5

4

3

4

4

5

3

4

1

1

L

1

1

1

1

1

1

1

1

P

R

L

L

K

P

R

R

N

M

M

M

P

P

P

P

N

N

N

N

T

T

T

T

N

N

N

N

I

I

I

I

U

U

U

U

X

X

C

C

I

I

O

O

O

O

U

U

X

X

C

M

M

C

A

A

I

I

U

U

M

M

A

A

C317

C301

0

1

1

2

1

6

R

P

M

N

4

3

D

D

S

S

D

D

S

S

N

D

V

V

V

G

K
L
C

I

O

_

D

D

I

I

C
T

A

A

R

D

D

6

4
N

M

K
2
3
_
K
L
C

0

3

5

5

1

3

5

1

6

5

4

1

8

1

1

1

3

4

G

M

C

J

K

N

B

E

F

N

J

B

K

1

2

2

1

3

1

2

1

2

R

S

S

D

D

D

C

C

O

O

U

I

I

S

S

S

S

D

D

D

C

_

_

V

V

P

P

V

V

V

D

D

H

_

_

_

D

D

D

D

D

V

V

N

N

N

G

G

G

N

F

1

2

U

O

W

W

Q

B

_

S

S

_

A

2

T

R

_

_

1

N

E

D

T

R

R

7

E

S

V

W

N

C

C

E

I

S

S

O

W

W

N

R

M

P

D

R

X

P

P

4

7

0

5

5

6

3

9

1

1

L

1

1

P

P

K

R

D

C

N

C

T

C

N

N

N

O

O

M

I

_

_

_

_

R

G

P

M

I

3

S

J

W

1

D

P
K
L
C

C303

5

7

Q

6

D

D

D

VDD34

D

N

D

V

G

V

VDD12

UP_CLK
UP_RST

UP_IO
SIM_IO

SIM_RST

SIM_CLK

VSIM

VRTC
LED2_DRV
LED1_DRV
RING_DRV

VIB_DRV

VLDO_7
VLDO_6
VL5S_B
VL5S_A
VLDO_5
VL4S_B
VL4S_A
VLDO_4
VLDO_3
VLDO_2
VLDO_1

VACC

CSN_PSC

SCLK_PSC

SDO_PSC

SDI_PSC

VEXT

VBAT

CH_BDRV
CH_ISEN

CH_RES

NC3

NC9
VREF
CREF

P
E

RTC_ALMN

E
K
_

Q

D

R

R

V

T

S

W

N

R

P

I

9

9

0

L

1

M

L

INTRQ

1

C319

C11
J13

N9

SIMCLK

R10

SIMRST

P10

SIMDATA

J11

SIM_IO

K11

SIM_RST

K14

SIM_CLK

K12

VSIM

H11
G12
G13

KEY_BL1

F13
F15

VIB_DRV

C12
A14
C9
D10

C318

B10
B11
A12
B12
A13
J12
G11
F14

K8

UP_CS

L8

UP_SCLK

N7

UP_SDO

M7

UP_SDI

E14
E13

VBAT

E11
F12
D14

D15
E10
A10
E9
H10

VIB_EN
INTRQ
PWR_KEEP
RST

KEY_COL(2)

3

Q300

2

KEY_ROW(4)

VREF

RTCALARM

VCCB_2.9V

TP300

VCCA_2.9V

C308

C315

VCCD_2.9V

VRF_2.9V

C309

C312

DPCS_PAM_IN

GSM_PAM_IN

VCCD_1.8V

C313

VRF_2.9V

R102

L101

R103

C314

26M_OUT

VRTC_3V

VBAT

013C113C

VRF_2.9V

OSC101

4

3

1

C101

6
1

5
1

4
1

3
1

2
1

1
1

0
1

9

VLDO2

VLDO1

VBAT

VDD

VCC_TXVCO

TXOP_HI

TXOP_LO

VLDO3

2

RTXQN

3

1

4

2

7

8

0

9

2

2

2

1

2

1

2

1

F

P

B

N

Q

C

Q

B

I

E

F

B

O

Q

F

N

R

I

_

A

B

E

_

F

F

_

V

R

C
C
V

C
N

8

RX1900B

E

E

C

R

R

C
V

RX1900

RX1800B

U100

RX1800

RX900B

RX900

RX850B

RX850

I
B

E

A

B

F

_

_

T

K

A

C

C

N

L

C

D

E

C

C

C

B

I

S

S

V

I

V

S

N

7

5

6

4

3

2

1

C118

RTXQP

PCS1900_LNA_IN_P

5
2

PCS1900_LNA_IN_N

6
2

DCS1800_LNA_IN_P

7
2

DCS1800_LNA_IN_N

8
2

GSM900_LNA_IN_P

9
2

GSM900_LNA_IN_N

0
3

GSM850_LNA_IN_P

1
3

GSM850_LNA_IN_N

2
3

GND

3

3
C
N

5

4
3

3

C104

C100

R101

AFC

C105

C106

L106

L110

VCCD_2.9V

C102

C103

C107

C110

C115

C117 C114

C116

L105

SERLE

SERCLK

SERDAT

RTXIN

RTXIP

U101

9

26M_OUT

8

C

C
N

C

1

7

V

_SD

CP

6

2

D

_RD

5

3

_Q

Q

C134

L108

C135

C133

R108

C132

R111

D
N
G

4

C130

R106

R107

R109

CLK13M_TR

C131

CLK13M_MC

R110

CLK13M_YMU

10-2

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

10-1-2.

System Initial

Initial Failure

The pin#G11 of U30

1.8V

the pin#J12 of U30

2.8V ?

Is the pin#K9 of U30

Low→High"

"

There is

32.768

forms at the

C217

Yes

and

Yes

Yes

kHz wave

C216

?

0=

0=

0

and

No

No

No

if it has some problem, it is to be replaced.)

(

if it has some problem, it is to be replaced.)

(

Check the U3

Check the U30

Check the UCP20

00

0

0

Yes

The voltage is"High" at

the

LCD display is O.K

C314,C310

C313,

Yes

Yes

Sound is O.K

Yes

END

No

No

No

Check the U30

Check the LCD part

Check the Audio part

0

10-3

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

R

R

5

5

0

0

5

6

C
3

1
7

U501

C
4

4
1

R430

C407

R

R

4

R
4

1
3

C
4

0
5

R
4

1
2

R
4

1
1

4

R
4

1
9

C
4

1
0

R
4

1
8

R
4

2
0

0

0

0

1

R

R

4

4

0

0

2

4

C313

C
3

C310

0
1

C206

C314

R
5

1
9

C308

C

C

3
1

3

8

1
1

C309

C
3

1
2

C300

C
3

0
3

TA501

0

0

3

C
3

1
9

U

R

R

5

5

1

2

6

0

C207

R211

R444

C
2

2
1

R446

Q300

C

C
4
4
0

R427

C417

TP300

2
1
1

U
C
P
2

0
0

DSP_IO

INTRQ

C

C
3
1
5

C

3

3

0

1

2

6

C208

OSC200

C216

C217

C
2

0

C210

9

C
2

R

0

2

5

0
4

C

C

2

2

0

0

3

4

T

R

C
2

1
2

H

2

2

0

0

6

0

10-4

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

ANT

GSM_RX

GSM_TX

DCS_RX

DCS_TX

FM_RADIO

SPK

MAIN_MIC

EAR_SPK

EAR_MIC

POWER_ON

SIM

CHARGING

LCD

MOT

CLK

VCCD_2.9V

VCCA_2.9V

VCCD_2.9V

Flow Chart of Troubleshooting

VBAT

A(21)

DSP_DB(0:15)

DSP_AB(0:8)

C207

VCCD_2.9V

DSP_IO

DSP_RWN

FLASH_RESET

BAND_SEL1
BAND_SEL2

FM_EN

VMOD_EN

TX_EN

SERLE
SERDAT
SERCLK

VCCD_1.8V

C210

C209

CP_CSROMEN
CP_CSRAMEN

R203

C208

AMP_EN
LCD_CS

EAR_CHECK

YMU_EN

CP_WEN

CP_OEN

MLCD_RST

UPPER_BYTE

FM_INT

HALL_SW

YMU_IRQ

C211

INTRQ

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

DSP_DB(0)
DSP_AB(8)
DSP_AB(7)
DSP_AB(6)
DSP_AB(5)
DSP_AB(4)
DSP_AB(3)
DSP_AB(2)
DSP_AB(1)
DSP_AB(0)

A(0:20)

DSP_IO

A(22)
A(23)

D(0:15)

R214 H

KEY_COL(0:4)

KEY_ROW(0:4)

C300

C302

0

0

0

7

8

9

1

8

7

9

6

1

8

9

7

1

H

H

1

2

H

J

J

J

J

K

H

G

G

G

G

5

6

9

5

6

7

8

0

1

5

4

7

6

3

2

1

1

1

1

1

1

1

1

S

S

S

S

S

C

C

S

S

S

S

S

S

S

S

D

D

D

D

D

N

N

D

D

D

D

D

D

D

D

N

N

N

N

N

N

N

N

N

N

N

N

N

G

G

G

G

G

G

G

G

G

G

G

G

G

D2

DB15

D3

DB14

E3

DB13

E2

DB12

F3

DB11

F2

DB10

F1

DB9

F4

DB8

G4

DB7

G3

DB6

H5

DB5

J6

DB4

J5

DB3

K3

DB2

K2

DB1

K1

DB0

K5

AB8

K7

AB7

M1

AB6

M2

AB5

N2

AB4

N1

AB3

L5

AB2

P1

AB1

K6

AB0

L3

I|O

L2

RWN

R3

RESETN_CSP

E6

NC4

C5

OCTL1

F5

OCTL2

E5

NC

A4

OCTL4

G6

OCTL5

B3

OCTL6

A3

OCTL7

B1

SERLE1

A2

SERLE2

C1

SERDA

C2

SERCK

C215

P

C
F

X
T

A

7

9

E

D

C

C
F

P

A

A
V

R201

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

A(0)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
A(14)
A(15)
A(16)
A(17)
A(18)
A(19)
A(20)

I2C_SCL

I2C_SDA
DEBUG_DTR
DEBUG_RTS
DEBUG_TXD
DEBUG_RXD
DEBUG_CTS

CHG_DET

SDS_TXD

SDS_RXD

SIMDATA

C316

SIMCLK

2
F
E
R
A
R

5
B

A6
B5
F8
F7
C5
D6
E7
D5
C4
B4
B3
C1
C2
D2
D3
E3

B13
F11
E14
D15
B15
C14
A16
A15
B17
C17
D16
F14
G14
G13
G17
J12
K12
K13
K14
L14
L15
L16

A12
A13
M15
M14
M11
N14

C13
P16
P15
T15

M9

T5
P2
N2

1

N

P

F

I

I

E

X

X

R

T

T

A

X

X

R

R

R

6

6

7

B

D

D

P
I

X
T
R

XCP_D0
XCP_D1
XCP_D2
XCP_D3
XCP_D4
XCP_D5
XCP_D6
XCP_D7
XCP_D8
XCP_D9
XCP_D10
XCP_D11
XCP_D12
XCP_D13
XCP_D14
XCP_D15

XCP_A0_BEON
XCP_A1
XCP_A2
XCP_A3
XCP_A4
XCP_A5
XCP_A6
XCP_A7
XCP_A8
XCP_A9
XCP_A10
XCP_A11
XCP_A12
XCP_A13
XCP_A14
XCP_A15
XCP_A16
XCP_A17
XCP_A18
XCP_A19
XCP_A20
XCP_A21

XCP_CSROMEN
XCP_CSRAMEN
XPA0/CS1N
XPA1/CS2N
XPA2/CS3N
XPA3/CS4N

XCP_WEN
XPA4/OEN
XPA5/WAITN
XPA6/BE1N

XPA7/IRQ1
XPA8/IRQ2
XPA9/IRQ3
XPA10/IRQ4

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

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

N

P

Q

Q

X

X

T

T

X

X

R

R

6

7

C

C

P

N

N
I

Q

Q

X

X

X

T

T

T

R

R

R

VCCD_1.8V

2

1

C

C

N

N

4
L

N

N

P

P

P

A

B

B

A

T

T

T

T

N

I

U

U

U

U

C

I

O

O

O

O

M

A

A

A

A

4

2

2

4

1

2

1

1

1

1

1

1

P

P

N

N

R

M

P

P

P

N

N

B

A

B

A

N
I

T

T

T

T

C
I

U

U

U

U

O

O

O

O

M

A

A

A

A

F
V
_
P
B

5

4

3

7

1

1

1

1

N

L

H

L

2

N

N

D

2

0

5

D

A

S

S

V

_

C

C

5

_

_

3

2

3

A

3

2

P

A

A

X

_

P

6

X
3
A
P
X

0
T

4

3

2

1

0

U

N

N

N

N

I

O

I

I

IN

I

S

S

S

S

S

S

/

/

/

/

/

/

4

3

5

2

1

0

B

B

B

B

B

B

K

K

K

K

K

K

_

_

_

_

_

_

P

P

P

P

P

P

C

C

C

C

C

C

X

X

X

X

X

X

2

3

1

5

4

L

T

T

R

M

0

3

3

0

1

1

4

1

6

1

4

7

6

8

9

1

1

F

F

M

C

A

D

F

F

F

L

P

B

8

1

3

2

4

L

L

B

V

B

V

D

T

S

T

S

S

S

C

D

D

D

D

D

D

C

D

D

D

C

N

D

D

N

N

N

N

N

N

N

O

O

V

V

G

G

G

_

_

G

G

G

G

D

D
N

D
V

G

U300

N

P

P

N

T

T

T

T

P

N

U

N

U

P

N

M

U

U

K

I

N

N

N

N

O

O

G

I

G

I

C

O

O

I

C

D

R

X

X

E

E

I

I

X

X

I

V

C

C

C

I

I

I

A

A

A

U

U

R

R

U

U

X

M

M

M

A

A

V

D

A

V

D

A

D

V

5

3

4

4

6

3

4

5

3

5

4

3

1

1

1

1

1

1

1

1

L

1

P

R

L

L

P

K

N

R

R

M

M

P

P

P

N

N

N

N

T

T

T

T

N

N

N

I

I

I

U

U

U

U

X

X

C
I

O

O

O

O

U

U

X

C

X

C

M

A

I

A

I

U

U

M

M

A

A

C317

0

1

0

1

7

9

1

7

1

6

7

8

9

6

1

7

1

M

H

J

H

J

L

L

K

G

G

L

L

K

S

S

S

S

S

S
S
V

1
T
U
O
S

/
6
B
K
_
P
C
X

3
U

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

S

V

V

V

V

V

V

V

V

V

V

V

V

4

2

3

T

T

T

X

X

U

U

U

R

T

O

O

O

A

A

0

1

0

S

S

S

0

/

/

/

D

D

X

X

7

9

M

M

8

I

R

I

R

T

R

I

I

B

B

B

/

/

/

_

_

/

K

K

K

6

5

0

1

1

2

_

_

_

1

1

1

3

3

1

P

P

P

A

A

A

A

A

A

C

P

C

C

P

P

P

P

P

X

X

X

X

X

X

X

X

X

3

3

1

4

5

3

4

3

1

L

F

T

P

E

K

H

N

N

1

2

1

6

R

P

N

3

4

D

S

S

D

S

S

D

V

V

V

K
L
C

O

_
D

I

C

T

A

R

D

6

4

1

N

D

M

K
2
3
_
K
L
C

VCCD_1.8V

3

2

6

A

F

A

S

S

S

S

S

S

V

V

V

1

0

M

M

O

O

I

I

_

_

9

8

2

2

A

A

P

P

X

X

1

5

F

G

5

4

G

K

1

2

S

S

S

S

V

V

Q
A
N
E

C

O

M

X

6
R

6
1
C

6
G

3

6

5

4

N

N

J

3

1

2

D

O

O

I

I

D

_

_

V

D

D
D

D

V

V

R
T

7

N

I

C

D

N

4

3

5

1

P

P

C

T

C

N

M

I

_

_
P

M
3

S

1

D
K
L
C

6

7

1

1

5

1

R

R

A

D

D

D

D

D

D

D

D

V

V

V

V

UCP200

A

1

1

T

X

X

A

R

T

D

_

_

_

4

3

0

1

1
A

M

A
P

S

P

X

X

X

3

2

1

1

G

U

3

M

J
2
D
D
V

N
2

1
W

W
S

S
_

_
R

R
W

W

P

P

5

1

C

N
O
_
G

I
J

3

4

R

T

D
D
V

K
L
C
_
0
M
S

X
0
N

C301

5

1

1

1
F

K

1

2

R

D

C

U

D

S

C

V

P

H

_

_

D

D

N

N

G

G

F
U

O

B

_

_

T

1

E
S

W

E

S
P

R

7

9

L

K

N
O
_
R
W
P

1

1
R

G

D

D

D

D

D

D

V

V

V

I

O

S

S

O

I

M

M

_

_

P

P

C

C

/

/

9

0

1

2

A

A

P

P

X

X

2

1

L

L

0

3

5

1

8

1

1

E

C

B

B

5

7

1

Q

6

D

C

D

D

VDD34

D

S

N

D

V

P

G

_

V

VDD12

D
N
G

UP_CLK
UP_RST

UP_IO

SIM_IO
SIM_RST
SIM_CLK

VSIM

VRTC
LED2_DRV
LED1_DRV
RING_DRV

VIB_DRV
VLDO_7
VLDO_6

VL5S_B
VL5S_A

VLDO_5

VL4S_B

VL4S_A
VLDO_4
VLDO_3
VLDO_2
VLDO_1

VACC

CSN_PSC

SCLK_PSC

SDO_PSC
SDI_PSC

VEXT

VBAT
CH_BDRV
CH_ISEN

CH_RES

VREF

CREF

P
E

RTC_ALMN

E
K

2

_

Q

D

D

R

R

V

V

T

S

S

W

N

P

R

R

I

9

9

0

0

1

1

L

M

L

N

1

VCCD_2.9V

4

6

7

1

2

1

1

B

E

E

E

E

E

E

D

D

D

D

D
V

D

D

D

V

V

V

K
C

2

S

M

N

_
P

S

W

S

C

P

1

/

/

/

2

3

1

M

2

2

2

A

A

A

W

P

P

P

P

X

X

X

X

6

6

4

5

J

K

H

R

C11
J13

N9
R10
P10
J11
K11
K14

K12
H11
G12
G13
F13
F15
C12
A14
C9
D10
B10
B11
A12
B12
A13
J12
G11
F14

K8
L8
N7
M7

E14
E13
E11
F12
D14

D15

NC3

E10

NC9

A10
E9
H10

INTRQ

3

2

VCCD_1.8V

C203

6

5

6

1

1

1

8

U

N

P

U

E

E

E

E

D

D

D

D

D

D

D

D

V

V

V

V

3

0

M

M

W

O

P

B

_

/

T

5

4

2

2

S

A

A

R

P

P

F

X

X

X

5

3

4
F

H

M

C303

SIMCLK
SIMRST
SIMDATA
SIM_IO
SIM_RST
SIM_CLK

VSIM

KEY_BL1

VIB_DRV

C319

VCCB_2.9V

VCCA_2.9V

VRF_2.9V

VCCD_2.9V

VCCD_1.8V

VRTC_3V

C318

UP_CS

C308

UP_SCLK
UP_SDO
UP_SDI

C309

C313

C312

013C113C

C314

VBAT

VREF

RTCALARM

C315

VIB_EN
INTRQ
PWR_KEEP
RST

TP300

KEY_COL(2)

Q300

KEY_ROW(4)

VCCD_2.9V

R200

C204

6

5

0

0

1

1

2

1

1

1

1
F

U

M

E

E

B

G

L

L

F

E

E

A

E

L

L

E

S

D

D

D

P

P

R

S

D

D

D

D

D

V

V

V

V

V

_

_

X

S

D

S

D

V

V

K

B

A

L

K

C

Q

Q

0

_

E

E

C

1

1

Q

R

R

A

M

R

M

_

_

_

T

T

S

T

O

D

_

_

_

_

_

_

4

7

8

6

3

7

3

2

1

2

3

1

A

A

A

A

A

A

P

P

P

P

P

P

X

X

X

X

X

X

7

2

4

3

7

4

1

1

1

E

G

G

P

N

M

C205

2

1

7

8

1

1

1

C

F

C

D

I

A

C

K

T

D

C

R

D

V

V

XTIC_MODE

XCPTSTSTOP_CKO

XRTCALARM_N

S

K

I

XOSC32OUT

C

M

D

T

T

T

_

_

_

P

P

P

C

C

C

X

X

X

7

9

7

8

F

D

C

G

VRTC_3V

C206

VREF
CLK13M_TR
TR_RST

B
T
S
R

F12

TDO

F15

TRST

H12

TDI

G12

TMS

H13

TCK

G15

CKO

L12

IOBIT#2

K11

IOBIT#1

N4

INT#0

R12

IO7

U5

RWN

T17

AB#8

T14

AB#7

R14

AB#6

P12

AB#5

P11

AB#4

N11

AB#3

R13

AB#2

M10

AB#1

U13

AB#0

P10

DB#15

R11

DB#14

T11

DB#13

U11

DB#12

M8

DB#11

N8

DB#10

N7

DB#9

P7

DB#8

M6

DB#7

R7

DB#6

T7

DB#5

U7

DB#4

P6

DB#3

R6

DB#2

U6

DB#1

P5

DB#0

D12

M12

D11

XAG3

E11

XAG2

A11

XAG1

B11

XAG0

B7

XBSWN

A7

X1RTC

D10

X2RTC

E8

N
T

C6

O

S

D

R

T

T

_

_

P

P

C

C

X

X

3
1
D

R204

R202

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

DSP_DB(15)
DSP_DB(14)
DSP_DB(13)
DSP_DB(12)
DSP_DB(11)
DSP_DB(10)

DSP_DB(9)
DSP_DB(8)
DSP_DB(7)
DSP_DB(6)
DSP_DB(5)
DSP_DB(4)
DSP_DB(3)
DSP_DB(2)
DSP_DB(1)
DSP_DB(0)

C216

OSC200

3

TR_RST

RTCALARM

CLK_32K
CP_TDO
TR_RST
CP_TDI
CP_TMS
CP_TCK
DEBUG_DSR
EAR_SWITCH
AS1
JACK_IN
PWR_KEEP
SIMRST
LCD_DET
FLASH_RESET
LED_EN
CHG_OFF

UP_CS
UP_SCLK
UP_SDO
UP_SDI

21

TR_RST

AS2

DSP_INT
DSP_IO
DSP_RWN

DSP_AB(8:0)

DSP_DB(15:0)

ICHRG

C217

VBAT

R205

C212

C214

R208

VCCB_2.9V

TH200

R206

R207

C213

10-5

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

10-1-3.

Sim Part

Insert SIM is displayed on the LCD

"

Yes

Check the SIM

connector's(SIM600

connection to SIM card

Yes

Check the voltage at
pin#1 of SIM600

2.8V ?

Is there any signals

pin#

2,#3,#6

>=

Yes

of SIM600

No

)

No

No

?

Resolder or change SIM600

Check the U300

Check the U300

Yes

Check the SIM Card

END

10-6

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

C
4

4
1

U501

R430

C407

R
5
1
9

C
3
0
1

R
4
1
3

C
4
0
5

R
4
1
2

R
4
1
1

C313

C310

C206

C314

C308

C309

U503

R
4

R

0

4

1

1

R
4

C

0

4

2
1
0

R
4
1
8

R
4
2
0

C
3

1
2

R

R

TA502

5

5

0

0

R

6

5

4
0
0

R

C

4

3

0

1

4

7

C
3

1
1

TA501

C300

0

0

C

C

3
1

3

8

0
3

C433

R444

C
2
2
1

R211

3

U

C

C

C

C

3

3

3

3

1

1

1

0

9

5

6

2

R446

Q300

DSP_IO

INTRQ

C
4
4
0

R427

C208

OSC200

C417

C434

TP300

C
2
1
1

U
C
P
2

0
0

C216

C217

C423

R

R

5

5

2

1

0

6

C207

0
0
2

E
M

U

C
2
0

C210

9

C
2

R

0

2

5

0
4

C

C

1

1

3

3

3

2

R108

L
1

U101

1
0

C

C

R

4

4

4

0

0

2

1

0

9

C

C

R

2

2

2

0

0

0

4

3

0

T

R

R

C

H

2

2

2

2

0

0

1

0

7

6

2

0

C213

R111

C131

R107

C130

R106

V

V

C

R

R

R

4

4

4

4

0

0

0

0

3

3

1

0

R
2
0
2

R
2
0
5

CP_WEN

C
4
0
2

R

C

2

2

0

1

8

4

D[1]

R109 R110

R
2
0
3

CP_OEN

C620

R
2
0
1

CP_CSRAMEN

R210

C220

R213

CP_CSROMEN

A[2]

R212

0

1

2

G

J

A

T

10-7

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

0

I

6

0

S

M

R

C
6
1
9

C
6
1
8

C

C

6

6

6

1

1

1

0

7

6

Flow Chart of Troubleshooting

ANT

GSM_RX

GSM_TX

DCS_RX

DCS_TX

FM_RADIO

SPK

MAIN_MIC

EAR_SPK

EAR_MIC

POWER_ON

SIM

CHARGING

LCD

MOT

CLK

VSIM

SIM_RST

SIM_CLK

R610

C617 C618C616 C620C619

SIM600

D

C

C

P

K

N

L

C

C

C

C
V

1

C

C

P

O

C

N

N

G

N

N

I/

V

V

7

8

6

3

9

2

4

5

0
1

SIM_IO

DSP_DB(0:15)

DSP_AB(0:8)

FLASH_RESET

DSP_IO

DSP_RWN

BAND_SEL1
BAND_SEL2

FM_EN

VMOD_EN

TX_EN

SERLE

SERDAT

SERCLK

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

DSP_DB(0)
DSP_AB(8)
DSP_AB(7)
DSP_AB(6)
DSP_AB(5)
DSP_AB(4)
DSP_AB(3)
DSP_AB(2)
DSP_AB(1)
DSP_AB(0)

DSP_IO

D2
D3
E3
E2
F3
F2
F1

F4
G4
G3

H5

J6

J5

K3

K2

K1

K5

K7
M1
M2

N2

N1

L5

P1

K6

L3

L2

R3

E6

C5

F5

E5

A4
G6

B3

A3

B1

A2

C1

C2

DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
AB8
AB7
AB6
AB5
AB4
AB3
AB2
AB1
AB0
I|O
RWN
RESETN_CSP

NC4
OCTL1
OCTL2
NC
OCTL4
OCTL5
OCTL6
OCTL7

SERLE1
SERLE2
SERDA
SERCK

9
D

VCCD_2.9V

VCCA_2.9V

C302

0

0

1

1

1

2

J

K

5

6

7
1

C

C

S

N

N

D
N
G

0
1

6

7

8

9

9

7

8

J

H

H

H

H

J

J

G

9

5

6

0

1

2

3

4

1

1

1

1

1

1

1

S

S

S

S

S

S

S

S

D

D

D

D

D

D

D

D

N

N

N

N

N

N

N

N

G

G

G

G

G

G

G

G

3

0

7

8

9

1
F

G

G

G

5

6

7

8

S

S

S

S

D

D

D

D

N

N

N

N

G

G

G

G

3

1

1

4

1

4

6

7

8

9
F

4
S
D
N
G

1

F

D

L

C

P

F

B

F

L

1

L

2

3

8

B

V

V

T

T

S

S

S

C

D

D

D

C

C

D

D

D

N

D

N

O

O

N

N

N
G

V

G

_

_

G

G

D

D
N

D
V

G

U300

N

P

N

P

T

N

P

P

N

P

1

2

N

P

A

F

A

F
E
R

P

C

A

F

X
T

A

R

7

6

5

E

B

B

C

C

C316

F

P

A

A

100NF

V

10V

B

I

I

Q

Q

T

T

T

E

X

X

X

X

U

U

U

T

R

T

T

T

X

A

X

X

X

O

O

O

A

R

R

A

R

A

R

R

2

2

1

6

7

6

7

1

1

1

D

D

C

C

P

N

R

P

P

N

N

IP

IN

A

A

Q

Q

X

X

T

T

X

X

T

T

U

T

U

T

R

R

R

O

R

O

A

A

T

N

T

T

N

P

N

P

B

U

T

N

IN

I

O

U

C

IC

I

IC

O

M

M

A

M

4

4

5

2

1

1

1

1

P

N

N

M

P

P

N

N

B

B

IN

IN

T

T

IC

U

IC

U

O

M

O

M

A

A

N

P

U

U

M

U
O
IC
M

5
1
P

P
T
U
O

IC
M

K

N

N

G

G

I

I

O

O

C

C

E

I

E

X

X

X

X

V

A

R

R

X

U

U

U

U

V

D

V

V

A

A

A

A

4

3

3

5

4

4

3

3

1

1

1

1

1

1

1

R

L

L

K

R

R

M

M

P

P

N

N

N

T

T

T

IN

IN

U

U

U

X

X

O

O

O

U

U

X

X

C

A

A

I

U

U

M

A

A

C317

VCCD_2.9V

C300

0

1

1

2

1

6

4

6

R

P

K

A

M

N

4

2

3

B

D

D

S

S

S

D

D

D

S

S

S

N

D

N

D

V

V

V

V

V

G

G

K

Q

L

A

C

O

I

N

N

_

D

D

E

I

I

IR

C
T

A

A

A

O

R

X

D

D

D

6

4

6

4

1

L

P

N

D

M

K
2
3
_
K
L
C

C301

5

5

1

3

5

6

5

1

1

1

3

4

G

M

J

N

N

F

J

B

K

1

1

2

2

1

2

3

R

S

C

D

D

D

O

O

U

I

I

S

S

D

D

D

C

_

_

V

P

V

V

V

H

D

D

_

_

D

D

D

D

V

V

N

N

G

G

N

F

2

1

U

O

W

W

B

_

S

S

_

2

T

_

_

R

1

E

D

T

R

R

7

S

V

W

N

C

E

I

C

S

W

S

W

P

R

P

M

D

P

N

R

5

4

0

7

9

6

3

5

1

1

1

L

K

P

P

R

C

C

N

T

C

N

N

N

O

O

M

I

_

_

_

_

R

P

M

IG

3

S

J

W

1

D

P

K
L
C

VBAT

0

3

1

1

8

C

B

E

1

5

7

Q

6

C

D

D

D

VDD34

S

D

N

D

P

V

G

_

V

VDD12

D
N
G

UP_CLK
UP_RST

UP_IO

SIM_IO
SIM_RST
SIM_CLK

VSIM

VRTC
LED2_DRV
LED1_DRV
RING_DRV

VIB_DRV

VLDO_7
VLDO_6
VL5S_B
VL5S_A
VLDO_5
VL4S_B
VL4S_A
VLDO_4
VLDO_3
VLDO_2
VLDO_1

VACC

CSN_PSC

SCLK_PSC

SDO_PSC

SDI_PSC

VEXT
VBAT

CH_BDRV

CH_ISEN
CH_RES

NC3
NC9

VREF

CREF

P
E

RTC_ALMN

E
K
_

Q

D

R

R

V

T

S

W

N

P

R

I

9

9

0

L

1

M

L

1

C11
J13

N9
R10
P10
J11
K11
K14

K12
H11
G12
G13
F13
F15
C12
A14
C9
D10
B10
B11
A12
B12
A13
J12
G11
F14

K8
L8
N7
M7

E14
E13
E11
F12
D14

D15
E10
A10
E9
H10

INTRQ

C303

C319

SIMCLK
SIMRST
SIMDATA
SIM_IO
SIM_RST
SIM_CLK

VSIM

KEY_BL1

VIB_DRV

VCCA_2.9V

VCCB_2.9V

VRF_2.9V

VCCD_2.9V

VCCD_1.8V

VRTC_3V

C318

UP_CS
UP_SCLK
UP_SDO
UP_SDI

C308

C309

C311 C310

C312

C313

C314

VBAT

VREF

RTCALARM

C315

VIB_EN
INTRQ
PWR_KEEP
RST

TP300

KEY_COL(2)

3

Q300

2

KEY_ROW(4)

10-8

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

10-1-4.

Charging Part

Check

IFC500

No

No

Abnormal charging part

What is the type

of Charging

TA Charging

The

TA_VEXT

The pin#6of

U301 is

"

U301

_5V뵃5

Yes

LOW"?

is

V?

Check

UCP200

No

Check U300

Yes

Charging Current

is

mA~650mA?

350

Yes

Check The Battery

10-9

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

VR503

U501

R430

C407

C
4

4
1

R
5
1
9

C510

R
5
1
1

L503

R
5
1
0

BTC500

R214

C
4
0
4

R408

R507

R
4
4

C

5

4
3
9

C433

R211

TA500

R
4
2
2

R504

R444

C
2
2
1

R405

U400

R
4
2
1

U
4

0
4

Q300

ZD502

R
5
1
7

R
5
0
3

I

F
C
5
0
0

0
0
5
U

R

R

4

4

1

1

3

9

C

C

4

4

1

0

0

5

R

R

4

4

1

1

8

2

R

R

4

4

1

2

1

0

C313

C
3

C310

0
1

C206

C506

R515

R514

VR501

R508

L
5
0

R501

1

U503

R
5
0

R

R

5

4

4

0

0

0

1

R

R

C

4

4

3

0

0

1

2

4

7

R513

R509

C501

C502

L
5
0
2

R
5
0
6

C300

R
5
0
2

C505

VR502

TA502

TA501

0

0

1
0
5
D
Z

R
5
1
2

0
0
5
D
Z

3

U

R446

R435

V
R
5
0
0

C
4
0
8

C412

C
4
1
5

C
4
1
4

C

C

C

R
4
2
4

DSP_IO

INTRQ

4

4

4

0

1

1

6

3

1

R428

C418

C
4
3

U402

5

C
4
4
0

R427

C417

R438

C416

R415

R443

C434

U
4

0
1

R
4
3
1

TP300

R

R

4

4

0

1

9

4

R410

C
2
1
1

U
C
P
2

0
0

C

C

C

6
0
6

R306

C431

R442

C429

C428

C424

C421

R432

R
4
3
3

C420

C419

C423

R309

1
0
3

U

C207

C

6

6

6

0

0

0

7

8

9

C
3
0
5

R
4
4
1

C
4
2
2

R

C

3

3

0

0

7

6

C304

C
3
0
7

R308

R440

R439

R
5

2

1
8

0
5

U

R

R

5

5

1

2

6

0

C314

C308

C309

C

C

C

C

C
3
1
2

C

C
3
1
1

3

3

1

1

3

9

8

0
3

C

3

3

3

1

0

1

5

2

6

C208

OSC200

C216

C217

C

C

C210

C
2
0
5

C

2

2

0

0

3

4

T

R

C

H

2

2

2

0

1

0

6

2

0

C213

2
0
9

R
2
0
4

C

C

1

1

3

3

2

3

ANT

GSM_RX

GSM_TX

DCS_RX

DCS_TX

FM_RADIO

SPK

MAIN_MIC

EAR_SPK

EAR_MIC

POWER_ON

SIM

CHARGING

LCD

MOT

CLK

VBAT

U301

TA_VEXT

ICHRG

R306

R307

C305

C306

C307

R308

IN

1

2

GND

ISET

3

4

ABI ABO

8

BATT

7

_POK|

6

_EN|

5

GND

9

C304

R309

10-10

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

CHG_DET

CHG_OFF

JIG_ONJIG_ON_IF

Flow Chart of Troubleshooting

10-1-5.

Microphone Part

Microphone does not work

Yes

Is the soldered status of

microphone O.K?

Yes

Check the reference voltage on mic path

Yes

C402/C403

Is microphone ok?

END

≒

Yes

Yes

2.0V ?

No

No

No

Reassemble the microphone

R400,R401,R402,R403,R404,R429,R430,

Resolder or change

VR400,VR401,C400,C401,C402,C403

Check

U300

10-1-6.

Receiver Part

There is no sound from the Receiver

Yes

Is the terminal of

Receiver O.K

Is there any signals at

the pin# P11 and

pin#N12 of U30

Is there any signals at

the pin#5and pin#

of

This Document can not be used without Samsung's authorization

?

Yes

0?

Yes

U402 ?

END

10

Yes

SAMSUNG Proprietary-Contents may change without notice

①

No

No

10-11

No

Replace the Receiver

Check U30

Check

0,R427,

U402

R428

Flow Chart of Troubleshooting

10-1-7.

Speaker Part

There is no sound from the Speaker

Yes

Is the terminal of Speaker

Is there any signals at

the pin#25and pin#

Is there any signals at

the pin#5and pin#

of

of

O.K

U403 ?

U402 ?

END

?

Yes

Yes

Yes

26

10

No

No

No

Replace the Speaker

Check

U403,

Check

C429,C431

U402

③

④

10-12

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

VR503

U501

R430

C407

C
4

4
1

R
5
1
9

C
3
0
1

IF
C

5
0
0

C314

C308

C309

R
4
1
3

C
4
0
5

R
4
1
2

R
4
1
1

C313

C310

C206

Flow Chart of Troubleshooting

R
5
0
3

R601

C506

R515

R514

R513

R509

VR501

C505

R508

VR502

C501

C502

L

L

5

5

0

0

R501

0
0
5

U503

U

R
4

R

0

4

1

1
9

R
4

C

0

4

2
1
0

R
4
1
8

R
4
2
0

2

1

R

R

TA502

5

5

0

0

R

6

5

4
0
0

R

C

4

3

0

1

4

7

TA501

C300

0

C

C
3

1
2

C

C

3
1

3

3

8

0

1

3

1

F
1
0
0

R

1

5

R214

1

0

0

5
D
Z

R

R

R

5

5

5

1

1

0

2

1

2

R405

C
4
0
4

U400

L503

R

R

R

4

4

4

2

2

2

4

2

R408

0
0
5

D

R507

Z

C
4
3
9

C433

R211

3

0

U

C

C

C

3

3

3

1

1

0

9

5

2

1

C
1
0
4

1

R504

R444

C
2
2
1

R435

U

4
0

4

R446

R
4
4
5

Q300

DSP_IO

INTRQ

C
3
1
6

1

0

C103

C

S

O

R101

C102

0
0
1

U

C412

C
4
4
0

C
4
1
1

R428

C
4
3
5

R427

C208

OSC200

C
1
0
1

C
1
0
6

C
4
1
3

U402

C116

C114

C
4
0
8

C
4
1
5

C
4
1
4

L108

C
1
0
0

C
1
0
5

C
4
0
6

C418

C417

L
1
0
6

R438

C134

C135

C416

R415

R443

C434

L
1
0
1

U
4

0
1

R
4
3
1

TP300

R

R

4

4

1

0

4

9

R410

R

C

5

2

2

1

0

1

U
C
P

2
0
0

C216

C217

C431

R442

C429

C428

C424

C421

R440

R432

R
4

R439

3
3

R

C420

5

2

1
8

0

C419

5
U

C423

R
5
1
6

C207

C
2
0

C210

9

C
2

R

0

2

5

0
4

C

C

1

1

3

3

3

2

R108

L
1

U101

1
0

C

C

R

4

4

4

0

0

2

1

0

9

C

R

C

4

4

4

3

4

3

0

1

8

C
4
2
2

C

C

R

2

2

2

0

0

0

4

0

3

T

R

R

C

H

2

2

2

2

0

0

1

0

7

6

2

0

C213

R111

R107

C131

R106

C130

V

V

C

R

R

R

4

4

4

4

0

0

0

0

3

3

1

0

R
2
0
2

R
2
0
5

C
4
3
2

CP_WEN

C
4
0
2

R
4
3
4

4

0

3

C
2
1
4

D[1]

R10 9 R110

C
4
3
7

R
2
0
3

R
2
0
8

CP_OEN

C620

C

C

4

2

3

1

6

5

U

0
0
2

E
M

U

R
2

R210

0
1

C220

R213

CP_CSROMEN

CP_CSRAMEN

A[2]

C601

C

C

6

6

0

0

5

2

R603

V

C

R

R

6

6

6

0

0

1

3

2

2

C427

C425

C426

C202

C201

C200

R212

2

0

1

G

J

A

T

10-13

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

ANT

GSM_RX

GSM_TX

DCS_RX

DCS_TX

FM_RADIO

SPK

MAIN_MIC

EAR_SPK

EAR_MIC

POWER_ON

SIM

CHARGING

LCD

MOT

CLK

VBAT

SPK_N

AOUTAN

MAIN_N

R427

C417

R443

C434

MICOUTP

MICINP

MICINN

MICOUTN

1

1S2

2

1S1

3

VCC

AUXOUTP

AUXINP

AUXINN

AUXOUTN

U402

0

9

1

1

N

I

D

1

GND

N

2

I
2

D

4

5

R400

R401

C400

C401

R404

R402

R403

R411

R420

8

7

2S1

6

2S2

R412

R418

C405

C410

R428

C402

R429

MAIN_P

AOUTAP

AS1

SPK_P

R413

R419

C403

EAR_MIC_P
EAR_MIC_N

0
0
4
R
V

R430

C441

1
0
4
R
V

VCCA_2.9V

C407

MIC400

CP_WEN

YMU_EN

CP_OEN

CLK13M_YMU

VIB_EN

YMU_IRQ

MEM_RST

D(1)

D(0)

A(1)

VCCD_2.9V

37

38

39

40

41

42

43

44

45

46

47

48

C427

49
50
51

D1

D0|AURXD

_WR|AUTXD

_CS|AUSTB

A0

_RD|AUCLK

IFSEL

NC

SDATA

VDDIO

SCLK

LRCK

GND
NC
NC

K
L
C

M

1

4

6

5

3

3

3

4

3

M

M

W

W

P

P

L

2

T

I

M

IN

K
L

W

U

C

P

A

4

2

3

VCCD_1.8V

C436

C418 R431

P

N

_

_

N

)

)

)

)

)

3

5

2

4

6

(

(

(

(

(

D

D

D

D

D

3

0

2

1

3

3

3

3

6

5

2

4

3

D

D

D

D

D

U403

T
S
R
N

C

D

D

C

O

N

L

D

P
_

P

G

V

5

7

8

6

R434

C432

C437

)
7

(
D

9
2

7
D

D
D
V
A

9

7

8

2

2

1

C

M

N
W
P

M

D
N

O
C

G

V

A

1

0

1

1

C430

VCCD_2.9V

N

I
A
M

6
2

N
K
P
S

HPOUT-R

HPOUT-L

N
IN

V

2
1

5
2

SGND

SVDD

EQ3

EQ2

EQ1

AVDD

AGND

AUX1

AUX2

VINP

C438

I
A
M

P
K
P
S

24

23

22

21

R432

20

C421

19

18

17

16

C424

15

C428

14

C429

13

R441

R442

C431

C422

EAR_R

EAR_L

AMP_R

AMP_L

AOUTBP

AOUTBN

R433

R439

R440

VBAT

AOUTBN

C423

C419

VCCD_2.9V

C420

C425

C426

10-14

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

ANT

GSM_RX

GSM_TX

DCS_RX

DCS_TX

FM_RADIO

SPK

MAIN_MIC

EAR_SPK

EAR_MIC

POWER_ON

SIM

CHARGING

LCD

MOT

CLK

VCCD_2.9V

VCCA_2.9V

VCCD_2.9V

Flow Chart of Troubleshooting

VBAT

DSP_DB(0:15)

DSP_AB(0:8)

FLASH_RESET

DSP_IO

DSP_RWN

BAND_SEL1
BAND_SEL2

FM_EN

VMOD_EN

TX_EN

SERLE
SERDAT
SERCLK

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

DSP_DB(0)
DSP_AB(8)
DSP_AB(7)
DSP_AB(6)
DSP_AB(5)
DSP_AB(4)
DSP_AB(3)
DSP_AB(2)
DSP_AB(1)
DSP_AB(0)

DSP_IO

D2
D3
E3
E2
F3
F2
F1
F4
G4
G3
H5
J6
J5
K3
K2
K1
K5
K7
M1
M2
N2
N1
L5
P1
K6
L3
L2
R3

E6
C5
F5
E5
A4
G6
B3
A3

B1
A2
C1
C2

DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
AB8
AB7
AB6
AB5
AB4
AB3
AB2
AB1
AB0
I|O
RWN
RESETN_CSP

NC4
OCTL1
OCTL2
NC
OCTL4
OCTL5
OCTL6
OCTL7

SERLE1
SERLE2
SERDA
SERCK

3
1
D

8
C
N

N
N

I
X
U
A

4
1
L

P
IN

X
U
A

4
B

L
T
C
O
_
D
N
G

U300

P

N

T

T

U

U

O

O

X

X

U

U

A

A

3

3

3

1

1

1

L

K

R

P

N

N

T

T

IN

U

U

X

O

O

U

X

X

A

U

U

A

A

C300

0

1

3

1

1

4

1

2

4

6

6

1

6

1

M

F

L

C

P

L
T
C
O
_
D
D
V

P

M

G

C

E

V

R

X

V

V

3
1
M

K

N

R

P

A

3

2

4

B

V

B

V

D

D

S

S

S

D

D

D

D

D

D

S

S

S

N

D

D

N

N

D

V

V

V

V

V

V

G

G

G

K

Q

L

A

N

C

N

O

I

K

N

_

G

D

D

C

E

IR

I

I

I

E

C

A

A

A

T

A

O

R

D

D

D

X

V

R

D

6

4

4

6

4

4

1

L

1

P

N

R

D

M

R

K
2
3
_
K
L
C

C317

C301

0

3

5

5

1

3

5

5

6

4

N

J

G

N

1

2

1
S

O

O

I

I

S

_

_

V

D

D
D

D

V

V

R
T

7

N

C

I

C

M

D

N

3

6

5

P

P

R

T

C

N

M

I

_

_
P

M
3

S

1

D
K
L
C

1

8

1

1

1

1

3

E

M

C

J

B

F

B

K

2

5

1

7

3

1

2

R

Q

6

D

D

D

D

C

C

U

D

D

VDD34

S

S

D

D

D

D

C

N

D

P

P

V

V

V

V

H

G

_

_

V

VDD12

_

D

D

D

N

N

N

G

G

G

UP_CLK
UP_RST

UP_IO

SIM_IO
SIM_RST
SIM_CLK

VSIM

VRTC
LED2_DRV
LED1_DRV
RING_DRV

VIB_DRV

VLDO_7
VLDO_6
VL5S_B
VL5S_A
VLDO_5
VL4S_B
VL4S_A
VLDO_4
VLDO_3
VLDO_2
VLDO_1

VACC

CSN_PSC

SCLK_PSC

SDO_PSC

SDI_PSC

VEXT

VBAT

CH_BDRV

CH_ISEN

CH_RES

NC3

NC9
VREF
CREF

N

P

F

2

1

E

U

O

RTC_ALMN

W

W

E

B

_

S

S

K

_

2

T

_

_

_

Q

1

D

E

D

R

R

R

R

V

S

V

W

T

S

E

S

W

W

W

S

N

P

P

R

P

R

R

P

I

5

0

9

7

4

9

9

0

1

1

L

L

1

1

K

M

L

C

N

C

N

N
O

O

_

_

R

IG
J

W
P

1

INTRQ

C303

C318

SIMCLK
SIMRST
SIMDATA
SIM_IO
SIM_RST
SIM_CLK

VSIM

KEY_BL1

VIB_DRV

VBAT

UP_CS
UP_SCLK
UP_SDO
UP_SDI

VREF

RTCALARM

C319

VCCB_2.9V

VCCA_2.9V

C308

VCCD_2.9V

VRF_2.9V

C309

C312

C311 C310

VCCD_1.8V

C313

VRTC_3V

C314

C11
J13

N9
R10
P10
J11
K11
K14

K12
H11
G12
G13
F13
F15
C12
A14
C9
D10
B10
B11
A12
B12
A13
J12
G11
F14

K8
L8
N7
M7

E14
E13
E11
F12
D14

D15
E10
A10
E9
H10

C315

VIB_EN
INTRQ
PWR_KEEP
RST

TP300

KEY_COL(2)

3

Q300

2

KEY_ROW(4)

C302

0

0

1

1
J

K

1

2

7

5

6

1

C

C

S

N

N

D
N
G

P

C
F

X
T

A

5

7

9

B

E

D

C

C

C316

F

P

A

A

100NF

V

10V

0

0

7

8

9

1

9

7

8

6

7

8

9

J

H

H

J

H

J

H

2

3

0

1

6

4

5

1

1

1

1

1

1

1

S

S

S

S

S

S

S

D

D

D

D

D

D

D

N

N

N

N

N

N

N

G

G

G

G

G

G

G

P

N

P

2

1

P

N

A

F

F

Q

Q

I

I

T

E

E

X

X

X

X

U

T

T

R

T

R

T

X

X

A

X

A

X

O

R

R

A

R

R

R

R

1

7

6

7

6

6

1

B

C

C

D

D

P

P

N

IP

IN

Q

Q

X

X

X

X

T

T

T

T

R

R

R

R

7

8

9

1

F

F

F

F

G

G

G

G

1

2

3

4

9

5

6

7

8

S

S

S

S

S

S

S

S

S

D

D

D

D

D

D

D

D

D

N

N

N

N

N

N

N

N

N

G

G

G

G

G

G

G

G

G

P

N

P

N

N

T

T

P

P

N

B

B

A

U

U

N

T

T

T

N

I

O

O

I

IN

U

U

U

X

C

IC

IC

I

IC

U

O

O

O

M

M

M

A

M

A

A

A

5

5

4

2

2

2

5

4

1

1

1

1

1

1

1

1

P

P

N

N

R

N

M

M

P

P

P

P

N

N

N

N

T

T

A

B

A

B

IN

IN

T

T

T

U

T

U

IC

U

U

U

U

IC

O

O

O

O

O

O

M

C

M

IC

I

A

A

A

A

M

M

10-15

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

10-1-8.

LCD

Backlight does not work

Backlight ON"TIME"

mode in the menu?

Yes

Check conecting

between PBA and LCD

Check HEA600△v(pin

conector

3.1/2.7

Yes

#13) =

V(dimming)

No

Select backlight

No

No

"15

Check FPCB

Check the LCD

sec" mode

END

Yes

10-16

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

10-2.

10-2-1.

RF

EGSM

Rx

Continuous RX ON

RF Input

AMP

:-50

Normal Condition Catch the

channel

Check pin

PAM100

Check pin

PAM100

Check pin

U100

≥

≥

≥

:62

YES

YES

#17

-65

YES

#12

-65

YES

#17

2.8V

dBm

dBm

dBm

CH

of

of

of

NO

NO

NO

NO

Check soldered status of

ANT, C109,R104, C127, C101

RFS100,C108,C111,L102,L103,L104

Resolder or Change

Resolder or Change PAM100

Resolder or change U300

pinA13 C312

YES

Check the pin

U100=26Mhz

YES

Check the pin

U100 Vp-p=120mV

GSM Receiver is O.K?

#2,3,22,23

YES

YES

END

#19,20

of

of

NO

NO

NO

Resolder or Change osc101

Resolder or Change U100

GSM RX path component

resolder or change

10-17

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

10-2-2.

DCS Rx

Continuous RX ON

RF Input

AMP

Normal Condition Catch the

channel

Check pin

PAM100

Check pin

PAM100

Check pin

U100

: 660

:-50

≥

≥

≥

dBm

YES

YES

#17

-65

YES

#13

-65

YES

#17

2.8V

CH

dBm

dBm

of

of

of

NO

NO

NO

NO

Check soldered status of

ANT, C109, C127, C101

RFS100,C108,C111,L102,L103,L104

Resolder or Change

Resolder or Change PAM100

Resolder or change U300

C312

YES

Check the pin

U100=26Mhz

YES

Check the pin

U100 Vp-p=120mV

#2,3,22,23

YES

GSM Receiver is O.K?

YES

END

#19,20

of

of

NO

NO

NO

Resolder or Change OSC101

Resolder or Change U100

GSM RX path component

resolder or change

10-18

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

10-2-3. E

GSM Tx

Check

PAM100

:about2~3

dbm?

pin 17

Yes

Check and change

RFS100,C108,C111,

L102,L103,L104

No

No

PAM100pin

:

3.7V ?

pin

PAM100pin
about

check&change

30

Check

PAM100

4 : 2.8V ?

Yes

dbm?

4~5

Yes

U100

No

No

27:

Battery,

check&change

U300

Check and

change

UCP200,U300

CONTINUS TX ON CONDITION

TX POWER DAC

APPLIED

CH
RBW
VBW

SPAN

REF LEV

ATT

:62
:100
: 100

:10

:20

:10

: 554

ch

KHz
KHz

MHz

dBm

dB

CODE

Yes

PAM100pin

3:

1.2V ?

Yes

PAM100pin

about-5dbm?

17:

Yes

PAM100pin

4:

2.8V ?

Yes

PAM1

00

change or resolder

No

No

No

U300 check

check

U300

2,3,22,23 :

change or resolder

U100 pin

100mV ?

Yes

U100

No

change or resolder

U300

10-19

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

10-2-4.

DCS Tx

Check

PAM100

:about2~3

pin 17

Yes

Check and change

RFS100,C108,C111,

L102,L103,L104

No

No

PAM100pin

:

3.7V ?

Yes

PAM100pin

1.2V ?

pin

PAM100pin2

about

check&change

30

3:

Check

PAM100

4 : 2.8V ?

Yes

dbm?

4~5

Yes

U100

No

No

PAM100check

No

9:

Battery, PAM1

check&change

Check and

change

CP200,U300

U

00

CONTINUS TX ON CONDITION

TX POWER DAC

APPLIED

CH

: 698

660
RBW
VBW
SPAN

REF LEV

ATT

CH(PCS)

: 100
: 100

:10

:20

CH(DCS),

:10

: 560

KHz
KHz

MHz

dBm

dB

CODE

Yes

PAM100pin

about-5dbm?

17

:

Yes

PAM100pin

4:

2.8V ?

Yes

PAM1

00

change or resolder

No

No

U300

check

U100 pin

2,3,22,23 :

100mV ?

Yes

U100

change or resolder

No

U300

change or resolder

10-20

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

R

R

5

5

0

0

R

R

6

5

4

4

R

0

0

4

0

1

1
9

R

R

4

4

C

0

0

4

2

4
1
0

R
4
1
8

R
4
2
0

C

C

3

3

1

1

1

2

TA501

C
3
1
7

C300

0

0

C

C

3
1

3

8

0
3

F
1
0
0

C121

C122

C123

C124

U501

R430

C407

C
4

4

1

BOTHHOLE100

R
4
1
3

C
4
0
5

R
4
1
2

R
4
1
1

C313

C
3

C310

0
1

C206

C314

R
5
1
9

C308

C309

R

C

5

C134

C135

R102

R103

L105

C
1

2
0

C119

2

2

1

0

1

TP300

U
C
P
2

0
0

C216

C217

L
1
0
1

C
4

R446

R444

R211

3

U

C

C

C

C

3

3

3

3

1

1

1

0

9

5

6

2

0

1

C118

1

C
1
2
9

C
1
0
4

0

4
0

C417

C
1
2
6

Q300

O

M

R
1
0
4

C103

R101

C102

A

DSP_IO

INTRQ

P

C
1
2
5

R427

C208

OSC200

C
1
0
1

C116

C114

C
1
0
6

C117

C107

C110

C
1
2
7

L108

C
1
0
0

C
1
0
5

C
1
1
5

L
1
0
6

C
2
2
1

C

S

0
0
1

U

C
1
2
8

1

0

R
F
S
1

0
0

L
1
0
2

C
1
0
8

C109

C111

L104

L103

C136C137

10-21

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

ANT

GSM_RX

GSM_TX

DCS_RX

DCS_TX

FM_RADIO

SPK

MAIN_MIC

EAR_SPK

EAR_MIC

POWER_ON

SIM

CHARGING

LCD

MOT

CLK

DPCS_PAM_IN

GSM_PAM_IN

L101

R102

R103

26M_OUT

VBAT

Flow Chart of Troubleshooting

VRF_2.9V

OSC101

4

3

1

C101

C100

R101

AFC

C103

C105

C106

C107

C110

L106

L105

C115

C102

C117 C114

VCCD_2.9V

C116

VLDO2

6
1

VLDO1

5
1

VBAT

4
1

VDD

3
1

VCC_TXVCO

2
1

TXOP_HI

1
1

TXOP_LO

0
1

VLDO3

9

F
E
R
_
C
C
V

C
N

2

RTXQN

1

9
1

N
I
F

E
R

K
L
C
S

6

0

2

2

P

N
I

O

F

_

E

F

R

E
R

U100

I
B
B

A

_

T

C

A
D

C
V

S

5

3

4

2

2

2

2

B

Q

Q

B

Q

B
_

RX1900B

C

5

C

2

V

RX1900

6
2

RX1800B

7
2

RX1800

8
2

RX900B

9
2

RX900

0
3

RX850B

1
3

RX850

2

3
E
F

GND

3

_

3

C
C

C

C

B
I

I

V

N

N

5

4

2

4

3

1

3

3

8

7

1

1

C

B
F
A
V

N
E
S

7

8

RTXQP

PCS1900_LNA_IN_P

PCS1900_LNA_IN_N

DCS1800_LNA_IN_P

DCS1800_LNA_IN_N

GSM900_LNA_IN_P

GSM900_LNA_IN_N

GSM850_LNA_IN_P

GSM850_LNA_IN_N

C104

ANT_PAD1

ANT_PAD2

SERLE

SERCLK

SERDAT

RTXIN

RTXIP

C118

RFS100

ANT

C136

C109

C137

C

G

A

G

2

1

3

4

L103

C108

L104

L102

C111

VBAT

C119

C120

VMOD_EN

VAPC

TX_EN

GSM_PAM_IN

DPCS_PAM_IN

PAM100

7

0

1

3

T

T
T

2

VLOGIC

R104

3

VRAMP

4

TX_EN

27

GSM_IN

29

DCS|PCS_IN

C127

C126

C125

N

A

A

B
V

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

8

5

6

4

3

2

5

1

6

0

9

0

8

2

2

2

2

2

2

2

1

1

8

1

9

1

7

2

1

1

5

BS1

6

BS2

12

RX1

13

RX2

G

G

G

G

G

G

G

1

4

2

5

3

6

3

3

3

3

3

3

BAND_SEL1
BAND_SEL2

C128

C129

C121

C122

C123

C124

GSM900_IN

GSM1800_IN

9

2

3

D

D

D

N

N

N

G

G

G

GSM900_OUT1
GSM900_OUT2

GSM1800_OUT1
GSM1800_OUT1

F100

0
1

D
N
G

GSM850_LNA_IN_P
GSM850_LNA_IN_N

GSM900_LNA_IN_P

5

GSM900_LNA_IN_N

6

DCS1800_LNA_IN_P

7

DCS1800_LNA_IN_N

8

PCS1900_LNA_IN_P
PCS1900_LNA_IN_N

10-22

SAMSUNG Proprietary-Contents may change without notice

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