Samsung C270 Power On

9.Ȼɥɨɤɫɯɟɦɚɩɨɢɫɤɚɢɭɫɬɪɚɧɟɧɢɟɧɟɩɨɥɚɞɨɤ

Power On

9-1.

OWER ON' does not work

'P

Yes

Check battery voltage

is higher than

Check VPERM_3.0V,

VANA_2.85V, VRF_2.85V,

VSIM_3.0V, VMEM_1.8V,

VGPIO_2.8V of U202

Check the pin1of

OSC200 produces clock

signal

Check the R310

concerning about Jig

Power on

3.3V

OK

OK

OK

Not OK

NotOK

Not OK

Not OK

Change battery

Check the U202

older OSC200 again

S

older R310 again

S

OK

No

Is Power On working?

Yes

END

Repeat sequence

9-1

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

1

U202

NBE0

NBE1

NCS0

NCS1

NCS2

PCM_CLK

PCM_DI

PCM_DO

PCM_SYNC

PMU_VIO

PMU_VANA

PMU_VMEM

PMU_VPERM

PMU_VRF

PMU_VSIM

POK_IN

POK_OUT

PWM_OUT0

PWM_OUT1

PWM_OUT2

ICHGN

ICHGP

RFID_N

RFID_P

RFIL_N

RFIL_P

RFIP_N

RFIP_P

RFOH

RFOL

UART0_RD

UART0_TD

UART1_RD

UART1_TD

UART1_CTS

UART1_RTS

XTAL_26M_1

XTAL_26M_2

XTAL_32K_1

XTAL_32K_2

XTAL_SHLD

XTAL_SHLD

XTAL_SHLD

XTAL_SHLD

XTAL_SHLD

XTAL_SHLD

SIM_CLK

SIM_DATA

SIM_RST

SSI_CLK

SSI_DATA

SSI_OUT

D11

E12

A12

B12

A11

J19

H15

H16

J18

W15

W14

V15

W12

W13

V14

T8

V8

T7

T5

T6

W8

W9

E1

D1

G1

F1

C1

B1

A1

A2

L18

K18

W5

V5

V7

W6

A7

A6

L19

K19

B8

A8

B6

A5

B7

B5

H19

H18

G16

T1

U1

U2

R1

OSC200

1

4

LB
UB

NCS0
NCSFLASH

NCSRAM

VGPIO_2.8V
VANA_2.85V
VMEM_1.8V
VPERM_3.0V
VRF_2.85V
VSIM_3.0V

ONKEY_2

ONKEY_1

ICHGN

ICHGP

DCSRX_N
DCSRX_P
EGSMRX_N
EGSMRX_P

DCS_TX
EGSM_TX

UART0_TD

UART0_RD

UART1_RD

UART1_TD

UART1_CTS

UART1_RTS

2

3

SIM_CLK
SIM_DATA
SIM_RST

FM_INT

FM_RST

LED_EN

2

GND1

HOT

3

1

HOT

GND2

4

OSC20

9-2

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

V

V

VBA

IFC300

T

N

V

T

T

Flow Chart of Troubleshooting

CHG_5

T

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

11

11

12

12

13

13

14

14

15

15

16

16

17

17

18

18

19

19

20

20

21

NC

22

NC

23

NC

24

NC

25

NC

26

NC

27

NC

C311

L300
L301

R303
R304
R305

R306
R307
R308

R310
R314
R315

6

5

4

2

R302

C308

C309

5

4

3

1

6

0
0
3
D
Z

3

1

1
0
3
D
Z

2

C310

C307

C331

FM_AN

EARP_C

CM_R

EAR_

EAR_SW

AUX_DET
UART1_TD
UART1_RD

JIG_ON
UART0_TD
UART0_RD

G202

BOTHHOLE

R
2
0
1

U
3
0

BAT200

Z
D

C310

3
0
0

I

2

S

0

0

M

C
2

C

R

1

2

2

8

1

1

0

9

R
2
0
7

U
2
0
1

R315

3

0

1

D

R314

R
3
0
8

Z

R

R

3

3

0

0

7

6

R310

C
2
2

C

0

3
1
1

C309

R
3
0
5

C

R

R

3

3

3

0

0

0
8

3

4

0

0

2

D200

2

C
2
2
5

C

L

L

3

3

3

0

0

3

1

0

1

C

T

B

TA200

R109

ZD100

C

C

C

1

1

2

1

1

2

9

8

4

C122

2
0

R203

1
U

R202

C

C

1

1

2

2

0

1

L105

G203

BOTHHOLE

IFC300

9-3

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

9-2. S

IM Part

Insert SIM" is displayed on the LCD

"

VSIM_3.0V at the pin#1

SIM

100 = "

Is there any signal pin

#2,3,6

of SIM

Yes

H"?

Yes

200?

No

No

Check the SIM Power

Check U202

Check the SIM Card

END

9-4

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

V

SIM_3.0V

Flow Chart of Troubleshooting

SIM_DATA

SIM_CLK
SIM_RST

VSIM_3.0V

R213

C227

R
2
0
1

U
3
0

BAT200

Z
D

C310

3
0
0

I

2

S

0

0

M

C309

R
3
0
5

C

R

R

3

3

3

0

0

0
8

3

4

2

R109

C
2
2
5

C

L

L

3

3

3

0

0

3

1

0

1

ZD100

C

C

1

1

1

1

9

8

2
0
1
U

C

C

1

1

2

2

0

1

L105

NC

10

NC

9

NC

8

NC

7

I/O

6

VPP

5

GND

4

CLK

3

VCC

2

VCC

1

SIM200

C
2
2
4

C122

R203

R202

C
2

C

R

1

2

2

8

1

1

0

G202

BOTHHOLE

9

R
2
0
7

U
2
0
1

R315

3

0

1

D

R314

R
3
0
8

Z

0

0

2

C

T

B

R

R

3

3

0

0

7

6

D200

TA200

G203

BOTHHOLE

R310

C
2
2

C

0

3
1
1

IFC300

9-5

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

Microphone Part-Phone MIC

9-3.

Phone MIC does not work

Yes

Check the connection

of MIC

OK

Check thecomponents

which are connected to

MIC_BIAS

OK

Check the circuit

of MIC PART

OK

Is Phone MIC working?

Not OK

Not OK

Not OK

No

older MIC again

S

Solder R302, L300, L301, R303,

R304 and R305 again

older L303, C328, C330 and L302

S

again

Replace MIC

Yes

END

9-6

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

P

N

IFC300

A

A

Flow Chart of Troubleshooting

EAR_SW_REF

VCHG_5VVBAT

R300

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

11

11

12

12

13

13

14

14

15

15

16

16

17

17

18

18

19

19

20

20

21

NC

22

NC

23

NC

24

NC

25

NC

26

NC

27

NC

C311

L300
L301

R303
R304
R305

R306
R307
R308

R310
R314
R315

5

6

R302

C309

C308

C310

3

1

4

2

6

0
0
3
D
Z

1

3

4

5

1
0
3
D
Z

2

C307

FM_ANT

EARP_CTS

VCM_RTS

EAR_N

EAR_SW

AUX_DET
UART1_TD
UART1_RD

JIG_ON
UART0_TD
UART0_RD

C331

9
0
3
R

C300

C301

C304

UX_MIC_

C302

UX_MIC_

C306

MIC300

POWER

POWER

GND2GND1

GND2

GND

OUT

OUT

MIC_BIAS

L302

C327

1

3
4

L303

C328

MIC_

C329

C330

MIC_

9-7

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

Microphone Part-Earphone MIC

9-4.

Earphone MIC does not work

Yes

Check the connection

of IFC300

OK

Check MIC_BIAS.

When U202 operates

(
and call is connected

OK

Check the circuit

of EAR MIC

OK

Is Earphone MIC working?

)

Not OK

Not OK

Not OK

No

older pin3of IFC300 again

S

older L302, L303, C328 and C330

S

again and check U202

older L300, L301, R303, R304 and

S

R305 again

Repeat the sequence

Yes

END

9-8

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

V

V

VBA

IFC300

C

_

D

D

D

V

T

D

P

N

Flow Chart of Troubleshooting

CHG_5

T

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

11

11

12

12

13

13

14

14

15

15

16

16

17

17

18

18

19

19

20

20

21

NC

22

NC

23

NC

24

NC

25

NC

26

NC

27

NC

C311

L300
L301

R303
R304
R305

R306
R307
R308

R310
R314
R315

5

6

R302

3

1

4

2

6

0
0
3
D
Z

3

4

5

2

C308

1

1
0
3
D
Z

C310

C309

C307

C331

FM_AN

EARP_

CM_R

EAR

EAR_SW

AUX_DET
UART1_T
UART1_R

JIG_ON
UART0_T
UART0_R

MIC300

POWER

POWER

GND2GND1

GND2

GND

OUT

OUT

MIC_BIAS

L302

C327

1

3
4

L303

C328

MIC_

C329

C330

MIC_

9-9

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

Earphone Part

9-5.

Earphone does not work

Yes

Check the circuit

of IFC300

OK

Check the U202

Pin R19, T19

Check EAR SW

Ok

END

Not OK

Not OK

Not OK

older pin

S

R303, R304 and R305 again

,

Solder U202 or replace U202

Solder U310 again

5,6,7

of IFC300

9-10

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

VANA_2.85V

TH200

R208

EAR_N

EAR_P

SPK_N

SPK_P

DEBUG(0)
DEBUG(1)

DEBUG(2)
DEBUG(3)

R214

G12

E14

E16

F16

E11

E10

D10

B10

E9

D9

G11

D13

D14

A16

B13

A10

D16

F15

E15

G15

B16

B14

G18

F19

E19

D19

C19

B19

A17

A18

G19

F18

E18

D18

B17

B18

A19

C18

W4

V2

W2

V3

V4

G4

H5

W3

H4

J1

W1

V1

J4

R8

M19

N16

P18

R18

W16

W17

T18

U19

V19

U18

R19

T19

W18

W19

P19

N19

K1

K2

K4

L1

L2

L4

M1

M2

N1

N2

J15

J16

K15

L15

ADDR1

ADDR2

ADDR3

ADDR4

ADDR5

ADDR6

ADDR7

ADDR8

ADDR9

ADDR10

ADDR11

ADDR12

ADDR13

ADDR14

ADDR15

ADDR16

ADDR17

ADDR18

ADDR19

ADDR20

ADDR21

ADDR22

DATA0

DATA1

DATA2

DATA3

DATA4

DATA5

DATA6

DATA7

DATA8

DATA9

DATA10

DATA11

DATA12

DATA13

DATA14

DATA15

GPIO1

GPIO2

GPIO5

GPIO6

GPIO7

GPIO8

GPIO10

GPIO20

GPIO38

GPIO39

GPIO40

GPIO41

GPIO57

AUX_POK

AUXADC0

AUXADC1

AUXAUD_IN_L

AUXAUD_IN_R

EAR_OUT_N|R

EAR_OUT_P|L

INTMIC_BIAS

INTMIC_IN_N

INTMIC_IN_P

EXTMIC_BIAS

EXTMIC_IN_N

EXTMIC_IN_P

HSET_OUT_N

HSET_OUT_P

HKSW_DET1

HKSW_DET2

KEYIN0

KEYIN1

KEYIN2

KEYIO0

KEYIO1

KEYIO2

KEYOUT0

KEYOUT1

KEYOUT2

KEYOUT3

FE_CTRL0

FE_CTRL1

FE_CTRL2

FE_CTRL3

U202

LCD_RESET

A(23)

A(13)
A(14)
A(15)

VGPIO_2.8V

2
0
2
R

A(17:23)

MD(0:15)

3
0
2
R

VDD_KEY_ON

A(17)
A(18)
A(19)
A(20)
A(21)
A(22)

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

UART_SW

FM_SCL

FM_SDA

R204

R205

5
0
0
1

R209

R211

DEBUG(5)

JIG_ON

1
2
2
C

3
2
2
C

EAR_SW

EAR_SW_REF

KEYIN(2:0)

KEYIO(2:0)

KEYOUT(3:0)

FLIP

VIB

MIC_BIAS

MIC_N
MIC_P

AUX_MIC_N
AUX_MIC_P

R206

D201

KEYIO(0)
KEYIO(1)
KEYIO(2)

KEYIN(0)
KEYIN(1)
KEYIN(2)

KEYOUT(0)
KEYOUT(1)
KEYOUT(2)
KEYOUT(3)

C222

FM_L
FM_R

VC1

MOD_STANDBY

PON_PA

RV

RV

R

V

D

D

D

PA

P

A

_

_

_

G

G

D

D

D

D

D

D

U

U

U

U

A

A

A

A

_

_

_

_

D

D

D

D

N

N

N

N

G

G

G

G

8

5

3

4

5

1

1

1

1

1

T

T

T

V

M

F

F

F

F

F

F

G

R

R

R

G
_
D
N
G

6
R

R

R

R

_

_

_

_

_

_

_

D

D

D

D

D

D

D

N

N

N

N

N

N

N

G

G

G

G

G

G

G

2

3

2

3

2

4

B

B

C

A

D

D

9-11

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

F

F

F

F

R

R

R

R

_

_

_

_

D

D

D

D

N

N

N

N

G

G

G

G

2

4

7

5

6

E

E

D

D

D

F

F

F

F

F

R

R

R

R

_

_

_

_

D

D

D

D

N

N

N

N

G

G

G

G

6

7

5

E

E

E

U

R

R

R

R

R

S

_

_

_

_

_

_

D

D

D

D

D

D

N

N

N

N

N

N

G

G

G

G

G

G

6

2

1

2

2

5

1

F

F

H

H

G

T

B

F

F

F

F