Samsung C270 Power On

9.Ȼɥɨɤ ɫɯɟɦɚ ɩɨɢɫɤɚ ɢ ɭɫɬɪɚɧɟɧɢɟ ɧɟɩɨɥɚɞɨɤ

9-1. Power On

'POWER ON' does not work

Yes

Check battery voltage is higher than 3.3V

OK

Check VPERM_3.0V,

VANA_2.85V, VRF_2.85V,

VSIM_3.0V, VMEM_1.8V,

VGPIO_2.8V of U202

OK

Check the pin 1 of OSC200 produces clock signal

OK

Check the R310 concerning about Jig Power on

OK

Is Power On working?

Yes

END

Not OK

Not OK

Not OK

Not OK

No

Change battery

Check the U202

Solder OSC200 again

Solder R310 again

Repeat sequence

9-1

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

D11

NBE0

	E12
	NBE1
	A12
	NCS0
	B12
	NCS1
	A11
	NCS2
	J19
	PCM_CLK
	H15
	PCM_DI
	H16
	PCM_DO
	J18
	PCM_SYNC
	W15
	PMU_VIO
	W14
	PMU_VANA
	V15
	PMU_VMEM
	W12
	PMU_VPERM
	W13
	PMU_VRF
	V14
	PMU_VSIM
	T8
	POK_NI
	V8
	POK_OUT
	T7
	PWM_OUT0
	T5
	PWM_OUT1
	T6
	PWM_OUT2
	W8
	ICHGN
	W9
	ICHGP
	E1
	RFIDN
	D1
	RFIDP
	G1
	RFIL_N
	F1
	RFIL_P
	C1
	RFIP_N
	B1
	RFIP_P
	A1
	RFOH
	A2
	RFOL
	L18
	UART0_RD
	K18
	UART0_TD
U202	W5
	UART1_RD
	V5
	XTAL_SHLD B6

UART1_TD

V7

UART1_CTS

W6

UART1_RTS

A7

XTAL_26M_1

A6

XTAL_26M_2

L19

XTAL_32K_1

K19

XTAL_32K_2

B8

XTAL_SHLD

A8

XTAL_SHLD

A5

XTAL_SHLD

B7

XTAL_SHLD

B5

XTAL_SHLD

H19

SIM_CLK

H18

SIM_DATA

G16

SIM_RST

T1

SSI_CLK

U1

SSI_DAT

U2

SSI_OUT

R1

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		1
	OSC200
									GND1 HOT
		1		2
												OSC20
	4			3					HOT GND2
								3			4

SIM_CLK

SIM_DAT

SIM_RST

FM_INT

FM_RST

LED_EN

9-2

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Flow Chart of Troubleshooting

		VBAT	VCHG_5V
	IFC300
	1	1		FM_ANT
	2	2		R302
		3	L300
	3
	4	4	L301
	5	5	R303	EARP_C
		6	R304
	6	7	R305	VCM_RT
	7			EAR_
	8	8		EAR_SW
	9	9	R306
	10	10		AUX_DET
	11	11	R307	UART1_TD
	12	12	R308	UART1_RD
	13	13
	14	14	R310
	15	15		JIG_ON
	16	16	R314	UART0_TD
			R315
	17	17		UART0_RD

1818

1919

20	20				5	4		3	1	6	5	4		3	1		C308	C309	C310	C307	C331
		6
NC 21									003							103
NC 22
NC 23									DZ							DZ
NC 24
NC 25
NC 26						2						2
NC 27

C311

G202

BOTHHOLE

	2R
	10
BAT200	203U	811C	911C	422C

20

C122

R109

R203

1

U

R202

C310

DZ

2C

C309

003

52

1C

1C

02

12

002MIS

3R

3R

3R

3C

3L

3C

3L

50

40

30

80

10

13

00

ZD100

L105

812C

702R

2C		2R
91		01

102U

022C

	R315
	R310			103DZ

3C	R314
11
	03R	03R	03R
	8	7	6

IFC300

002CTB

D200 TA200

9-3

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G203

BOTHHOLE

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Flow Chart of Troubleshooting

9-2. SIM Part

"Insert SIM" is displayed on the LCD

VSIM_3.0V at the pin#1		No		Check the SIM Power
SIM100 = "H"?
	Yes

Is there any signal pin	No	Check U202
#2,3,6 of SIM200?

Yes

Check the SIM Card

END

9-4

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Flow Chart of Troubleshooting

VSIM_3.0V

				R213						NC
						10
									9	NC
									8	NC
									7	NC
SIM_DATA										I/O
						6
										VPP
									5
									4	GND
	SIM_CLK								3	CLK
	SIM_RST									VCC
								2
VSIM_3.0V										VCC
									1
				C227						SIM200

G202

BOTHHOLE

	2R
	10
BAT200	203U	811C	911C	422C

20

C122

R109

R203

1

U

R202

C310

DZ

2C

C309

003

52

1C

1C

02

12

002MIS

3R

3R

3R

3C

3L

3C

3L

50

40

30

80

10

13

00

ZD100

L105

812C

702R

2C		2R
91		01

102U

022C

	R315	103DZ
	R310

3C		R314
11
		03R	03R	03R
		8	7	6

IFC300

002CTB

D200 TA200

9-5

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G203

BOTHHOLE

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

9-3. Microphone Part - Phone MIC

Phone MIC does not work

Yes

Check the connection of MIC

OK

Check the components which are connected to MIC_BIAS

OK

Check the circuit of MIC PART

OK

Is Phone MIC working?

Yes

END

Not OK

Not OK

Not OK

No

Solder MIC again

Solder R302, L300, L301, R303,

R304 and R305 again

Solder L303, C328, C330 and L302

again

Replace MIC

9-6

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Flow Chart of Troubleshooting

	VBAT	VCHG_5V
IFC300
1	1					R302
2	2
3	3	L300
4	4	L301
5	5	R303
	6	R304
6	7	R305
7
8	8
9	9	R306
10	10
	11	R307
11
12	12	R308
13	13
14	14	R310
15	15
16	16	R314
17	17	R315
18	18
19	19
20	20	6	5	4	3	1	6	5	4	3	1
NC 21						003					103
NC 22
NC 23						DZ					DZ
NC 24
NC 25
NC 26				2					2
NC 27

C311

FM_ANT

EARP_CTS

VCM_RTS

EAR_N

EAR_SW

AUX_DET

UART1_TD

UART1_RD

JIG_ON

UART0_TD

UART0_RD

C308 C309 C310 C307 C331

		EAR_SW_REF
R300		C300
		C301
		AUX_MIC_
		C302
		AUX_MIC_
		C304
	903	C306
	R

MIC_BIAS

		L302
		C327
MIC300
POWER	1
GND1	2		C328
GND2	3
OUT	4	L303	MIC_P
		C329	C330
			MIC_N

9-7

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Flow Chart of Troubleshooting

9-4. Microphone Part - Earphone MIC

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?

Yes

END

Not OK

Not OK

Not OK

No

Solder pin 3 of IFC300 again

Solder L302, L303, C328 and C330

again and check U202

Solder L300, L301, R303, R304 and

R305 again

Repeat the sequence

9-8

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

		VBAT VCHG_5V
IFC300
1	1
	2					R302
2	3	L300
3
4	4	L301
5	5	R303
	6	R304
6
7	7	R305
8	8
9	9	R306
10	10
11	11	R307
12	12	R308
13	13
14	14	R310
15	15
16	16	R314
		R315
17	17
18	18
19	19
20	20	6	5	4	3	1	6	5	4	3	1
NC 21						003					103
NC 22
NC 23						DZ					DZ
NC 24
NC 25
NC 26				2					2
NC 27

C311

MIC_BIAS

L302

C327

FM_AN

EARP_C

VCM_R

EAR_

EAR_SW

AUX_DET

UART1_T

UART1_R

JIG_ON

UART0_T

UART0_R

C308 C309 C310 C307 C331

MIC300
POWER	1
GND1	2		C328
GND2	3
OUT	4	L303	MIC_P
		C329	C330
			MIC_N

9-9

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

9-5. Earphone Part

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

Solder pin 5,6,7 of IFC300

, R303, R304 and R305 again

Solder U202 or replace U202

Solder U310 again

9-10

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

LCD_RESET

G12

ADDR1

E14

A(23)

ADDR2

E16

ADDR3

F16

ADDR4

E11

ADDR5

E10

ADDR6

D10

ADDR7

B10

ADDR8

E9

ADDR9

D9

ADDR10

G11

ADDR11

D13

A(13)

ADDR12

D14

A(14)

ADDR13

A16

A(15)

ADDR14

B13

ADDR15

A10

A(17:23)

ADDR16

A(17)

D16

ADDR17

A(18)

F15

ADDR18

A(19)

E15

ADDR19

A(20)

G15

ADDR20

A(21)

B16

ADDR21

A(22)

B14

ADDR22

MD(0:15)

MD(0)

G18

DATA0

MD(1)

DATA1

F19

MD(2)

E19

DATA2

MD(3)

D19

DATA3

MD(4)

C19

DATA4

MD(5)

B19

DATA5

MD(6)

A17

DATA6

MD(7)

A18

DATA7

MD(8)

G19

DATA8

MD(9)

F18

DATA9

MD(10)

E18

DATA10

MD(11)

D18

DATA1

VGPIO_2.8V

MD(12)

B17

DATA12

MD(13)

B18

DATA13

MD(14)

A19

DATA14

202R

30R2

MD(15)

C18

DATA15

W4

GPIO1

VDD_KEY_NO

V2

GPIO2

W2

GPIO5

V3

UART_SW

GPIO6

V4

GPIO7

DEBUG(0)

G4

GPIO8

H5

VANA_2.85V

DEBUG(1)

GPIO10

W3

GPIO20

H4

FM_SCL

GPIO38

J1

TH200

FM_SDA

GPIO39

FLIP

W1

DEBUG(2)

R204

V1

GPIO40

R208

EAR_N

VIB

FM_R

R18

GPIO41

U202

1

AUXAUD_IN_R

DEBUG(3)

R205

DEBUG(5)

R206

J4

GPIO57

R214

R8

JIG_ON

D201

M19

AUX_POK

N16

AUXADC0

AUXADC1

P18

FM_L

AUXAUD_IN_L

22

W16

EAR_OUT_N|R

C

W17

EAR_OUT_P|L

EAR_P

MIC_BIAS

T18

50

INTMIC_BIAS

U19

01

MIC_N

V19

INTMIC_INN

R209

MIC_P

INTMIC_INP

C222

U18

EXTMIC_BIAS

R19

AUX_MICN

EXTMIC_INN

T19

SPK_N

AUX_MICP

EXTMIC_INP

32

W18

HSET_OUT_N

2C

W19

HSET_OUT_P

SPK_P

R211

EAR_SW

P19

HKSW_DET1

N19

EAR_SW_REF

HKSW_DET2

KEYIN(2:0)

KEYIN(0)

K1

KEYIN0

KEYIN(1)

K2

KEYIN1

KEYIN(2)

K4

KEYIN2

KEYIO(2:0)

KEYIO(0)

L1

KEYIO0

KEYIO(1)

L2

KEYIO1

KEYIO(2)

L4

KEYIO2

KEYOUT(3:0)

KEYOUT(0)

M1

KEYOUT0

KEYOUT(1)

M2

KEYOUT1

KEYOUT(2)

N1

KEYOUT2

KEYOUT(3)

N2

KEYOUT3

VC1

J15

FE_CTRL0

J16

FE_CTRL1

K15

MOD_STANDBY

FE_CTRL2

L15

PON_PA

FE_CTRL3

RVD DUA DUA DNG DNG

RVD DUA DNG

RDV DUA DNG

PGDA GD NG

APGD GD NG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

FR DNG

USB DNG

81V 31T

41T

51T

51M

6R

3A

2B

3B

2C

2D

4D

5D

6D

7D

2E

4E

5E

6E

7E

2F

5F

2G

1H

2H

61T

9-11

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This Document can not be used without Samsung's authorization