Samsung SGH-S3100 Troubleshooting

9. Flow Chart of Troubleshooting

9-1.

Power On

Power On'does not work

'

Check the current

consumption more than

C326(

Check the Clock at

OSC300

Yes

mA

100

Yes

Check the VBAT

more than

3.3V

Yes

VISA)

=2.6

Yes

= 32.768KHz

V?

No

No

No

No

Download again

Check the Battery

Check the related circuit

①

Resolder OSC300 or replace

Yes

Check the VDD_IO_LOW_1.8V

of U304

Check U304

VDD_IO_HIGH_2.9V

AVDD_2.6V

VDD_PLL_1.2V

Check CLK32K

Freq

Check the initial operation

=32

END

1.8V

≥

Yes

=2.6V

Yes

KHz

Yes

Yes

=2.9V

=1.2V

No

No

No

②

Check the U304 and C305

③

Check the U304 and C311, C313, C320

④

Check the clock32KHz_DIGIT

9-1

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This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

AABBVV

VV

TT

770033RR

_OOII__DDDDVV

VV88..11__WWOOLL_

V33..33__DDSS__DDDDVV

V

550033CC

001133CC

000033AATT

990033RR

660033CC

111133CC

VV00..33__CCCCVV__MMIISS

221133CC

331133CC

VV88..22__XXTT__XXRR__DDDDVV

441133CC

551133CC

VV88..22__NNYYSS__CCCCVV

771133CC

991133CC

11

000033TTAABB

22

VV55__EEGGRRAAHHCC__TTXXEE__VV

VV55__SSUUBBVV

110033DDZZ

222233CC

332233CC

TTAABBVV

NNII__KKCCAAJJ

NNOO__XXUUAA

552233CC

662233CC

881133RR

NN__YYEEKKNNOO

9933

8833

7733

441133RR

6633

5533

4433

3333

2233

992233CC

1133

0033

55000011

9922

8822

7722

TTAABBVV

1

0

2

414

424

404

E

E

D

D

D

D

V

V

D

D

D

D

A

A

V

V

V

V

1

1

2

2

S

S

F

F

F

F

V

V

SSSSVV

R

R

R

R

GGHHCCVV

NNIIVVBBSSUU

RRUUCCGGHHCC

22CCEERR__

11CCEERR__

EESSNNEESSTTAABBVV

AASSIIVV

DDNNGGFFEERR

CCFFEERR

SSAAIIBBCCIIMM

YYEEKKNNOO__

CCTTNN

N

N

N

N

E

E

E

E

M

M

M

M
I

I

I

I
S

S

S

S

4

6

545

262

VV88..11__WWOOLL__OOII__DDDDVV

5

6

7

8

5

3

4

454

464

555

434

444

T

T

T

T

D

D

D

D

C

C
C

C
V

V
M

M
I

I
S

S

A

A

A

A

D

D

D

D

B

B

B

B

V

V

V

V

V

V

V

V

C

C

O

O
I

I

H

H

9

474

484

494

D

D

D

D

D

D

D

D

D

D

D

D

V

V

V

V

V

V

2

2

3

3

P

P

D

D

L

L

D

D

440033UU

D

D

D

D

C

C

D

D

C

C

S

S

C

C

K

K

R

R

O

O

C

I

C

I
M

M
I

I

M

M

M

M

I

I

I

I

S

S

S

S

S

_

S

_

3

4

5

232

242

252

T

T

T

T

A

A

D

A

D

A

B

B

D

B

D

B

V

V

V

V

V

V

D

D

D

D

D

L

L
C

C
S

S

D

A

A

C

C

C

C

C

C

D

D

D

D

D

D

D

D

S

S

3

9

0

1

2

535

202

222

191

212

2

0
505

D

D
D

D
V

V
1

1
D

D

X

X

D

D

L

L

D

D

D

D

V

V
6

6

C

C

D

D

D

D

7

8

171

181

8

1
515

T

T
A

A
B

B
V

V
1

1
D

D

9

6

525

585

595

565

C

C

D

D

D

D

NCN

NCN

D

D

D

D

V

V

V

V

C

C

C

C

IICCSSOO

L

L

L

L

OOCCSSOO

QQRRII__

CCHHKKCCMMIISS

CCHHSSRRMMIISS__

FFFFOOMMIISS__||CCHHOOIIMMIISS

CCHHTTSSRR__

33OOPPGG

22OOPPGG

11OOPPGG

11NNEERRWWPP

22NNEERRWWPP

K

K

D

D
D

D
V

V
5

5
D

D

SSSSVV

D

D

2

2
3

3

D

D

K

K

V

V

L

4

4

L

SSSSVV

C

D

D

C

6

4

5

161

141

151

881133CC

002233CC

112233CC

000033CCSSOO

22

11

22

33

44

55

66

77

88

99

0011

1111

2211

3311

7755

33

442233CC

11

771133RR

TTTTAABB__SSEEMM

99..22__HHGGIIHH__OOII__DDDDVV

VV66..22__DDDDVVAA

VV88..22__MMAACC__DDDDVV

VV33..33__BBSSUU__DDDDVV

11__LLLLPP__DD

VV22..

DDVV

UUMMPP__TTII

nnFFFFOOMMIISS

NNOOTTSSRR

UUMMPP__NNOO__FFEERR

LLRRTTCC__EERROOCCVV

TTIIGGIIDD__zzHHKK2233

LLCCSS

AADDSS

003333CC

VV22..11__EERROOCC__MMSSGG__DDDDVV

110033LL

113333CC

333333CC

223333CC

443333CC

VV33..33__BBIIVV__DDDDVV

VV66..22__AAFFHH__DDDDVVAA

VV33..33__YYEEKK__DDDDVV

9-2

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

Z
D

3
0
1

C
3
1
0

C305

C
3
1
1

C208

C207

C
3
2
3

C
3
1
3

C319

C317

C314

C312

TA300

C
3
1
5

C
3
2
0

C
3
1
8

C321

C324

R314

R318

C32 5 C326 C329

4
0
3

U

0

0

S

C

O

3

D400

C331

L
3

0
1

C330

C334

R317

C

C

3

3

3

3
2

3

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.

Initial

Initial Failure

Yes

U304 pin7(RSTON)="H"?

check the test point)

(

Yes

Check the16bit data signal

memory CE

&

END

Yes

No

Check the circuit related to reset

9-4

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

VV88..11__WWOOLL__OOII__DDDDVV

551122CC

331122CC

0

0

6

1

1

B6B

M

M

O

O

O

O

C

C

C

C

C

C

C

C

V

V

V

V

))4422::11((AAHH

))11((AAHH
))22((AAHH
))

33((AAHH

))44((AAHH
))55((AAHH
))66((AAH

H

))77((AAHH
))88((AAHH
))99((AAHH

))0011((AAHH
))1111((AAHH
))2211((AAHH

))3311((AAHH
))4411((AAHH

))5511((AAHH

))6611((AAHH
))7711((AAHH
))8811((AAHH
))9911((AAHH
))0022((AAHH
))1122((AAHH
))2222((AAHH
))3322((AAHH

))5511::00((DDHH

VV88..11__WWOOLL__OOII__DDDDVV

TTSSRRUUBBKKLLCC

VVDDAA

nn

TTXXEETTSSRR

nn
HHSSAALLFF__nn00SSCC

nnEEOO
nnEEWW

nnTTIIAAWW

MMAARR__nn11SSCC

nnEEOO
nnEEWW

))00((AAHH

11EE

nn

BB

))4422((AAHH

))00((DDHH
))11((DDHH
))22((DDHH
))33((DDHH
))44((DDHH
))55((DDHH
))66((DDHH
))77((DDHH
))88((DDHH
))99((DDHH

))0011((DDHH
))1111((DDHH
))2211((DDHH
))3311((DDHH
))4411((DDHH
))5511((DDHH

EEOO__PPTT

MMAARR__SSCC__PPTT

UUBBLL__PPTT

000022EEBB__PPTT

11EE

UUOORR00AA

11DD

U

UOORR11AA

22BB

UUOORR22AA

22CC

UUOORR33AA

22DD

UUOORR44AA

33DD

UUOORR55AA

33CC

UUOORR66AA

33BB

UUOORR77AA

66DD

UUOORR88AA

77EE

UUOORR99AA

88DD

UUOORR0011AA

88CC

UUOORR1111AA

99AA

UUOORR2211AA

99BB

UUOO

RR3311AA

99CC

UUOORR4411AA

0011BB

UUOORR5511AA

0011CC

UURR6611AA

22EE

UURR7711AA

44CC

UURR8811AA

66EE

UURR9911AA

77CC

UURR0022AA

66CC

UU

RR1122AA

77DD

UURR2222AA

88EE

UURR3322AA

000022__D

DHH__PPTT

33RR

UUOORR00QQDD

33NN

UUOORR11QQDD

44PP

UUOORR22QQDD

55PP

UUOORR33QQDD

66PP

UUOORR44QQDD

77PP

UUOORR55QQDD

88PP

UUOORR66QQDD

99RR

UUOORR77QQDD

33PP

UUOORR88QQDD

44NN

UUOORR99QQDD

44RR

UUOORR0011QQDD

55RR

UUOORR1111QQDD

77RR

UUOORR2211QQDD

88RR

UUOORR3311QQDD

88NN

UUOORR4411QQDD

99PP

UUOORR5511QQDD

33MM

UURRKKLLCC

22MM

UURRDDVVAA__

77BB

RRTTEESSEERR__

22NN

RREECC__

22TT

RREEOO__

77AA

RREEWW__

44AA

RRPPPPVV

33LL

44EE

77NN

55BB

44DD

55DD

UUTTIIAAWW||RRYYDDRR

UUSSCC__

UUEEOO__

_

UUEEWW_

UUBBLL__

UUBBUU__

9

1

9

5

4

T9T

T5T

T4T

U9U

R1R

O

O

O

O

O

O

O

O

O

O

C

C

Q

Q

Q

Q

Q

Q

Q

Q

C

C

C

C

C

C

C

C

C

C

V

V

C

C

C

C

C

C

C

C

V

V

V

V

V

V

V

V

0

0

4

3

6

5

6
1

1

T6T

U4U

U3U

U6U

U5U

R

R

U

R

R
Q

Q
C

C
C

C
V

V

U

R

R

R

R

R

R

U

U

Q

Q

Q

Q

Q

Q

Q

Q

Q

Q

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

V

V

V

V

V

V

V

V

V

V

6

5

8

5

9

7
T7T

E5E

E9E

N6N

A5A

U8U

R

R

R

R

U

U

R

R

U

U

U

U

C

C

C

C

C

C

C

Q

Q
C

C
C

C
V

V

C

Q

Q

C

C

C

C

C

C

C

C

C

C

V

V

V

V

V

V

V

V

C

C
V

V

000022EEMMUU

U

U

U

U

U

U

U

U

O

O

U

U

O

O

O

O

R

R

R

R

R

R

Q

Q

Q

Q

Q

Q

S

S

S

S

S

S

S

S

S

S

S

S

V

V

V

V

V

V

7

2

2

8
T8T

U7U

R2R

U2U

U

U

U

U

O

O
R

R
Q

Q
S

S
S

S
V

V

6
A6A

U

U

U

U

U

O

O
R

R
S

S
S

S
V

V

8

A8A

U

O

O

O

O

O

O

O

O

O

O

R

R

R

R

R

R

R

R

R

R

S

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

0

0

5

1

1
1

1

T1T

N5N

B1B

N

N

0

0

6

1

8

3

1

1

T3T

R6R

C1C

B8B

T

T

U

U

U

U

U

U

U

U

U

U

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

V

V

V

V

V

V

V

V

V

V

44BB

OOTTEESSEERR__

22LL

OODDVVAA__

11PP

OOEECC__

99NN

OOEEOO__

55CC

OOEEWW__

33KK

OOKKLLCC

22PP

OOYYDDRR

0011PP

UUNNDD

11AA

CCNN

22AA

CCNN

33AA

CCNN

0011AA

CCNN

99DD

CCNN

0011DD

CCNN

33EE

CCNN

0011EE

CCNN

11FF

CCNN

22FF

CCNN

33FF

CCNN

88FF

CC

NN

99FF

CCNN

0011FF

CCNN

11GG

CCNN

22GG

CCNN

33GG

CCNN

88GG

CCNN

99GG

CCNN

0011GG

CCNN

11HH

CCNN

22HH

CCNN

33HH

CCNN

88HH

CCNN

99HH

CCNN

0011HH

CCNN

11JJ

CCNN

22J

J

CCNN

33JJ

CCNN

88JJ

CCNN

99JJ

CCNN

0011JJ

CCNN

11KK

CCNN

22KK

CCNN

88KK

CCNN

99KK

CCNN

0011KK

CCNN

11LL

CCNN

88LL

CCNN

99LL

CCNN

0011LL

CCNN

11MM

CCNN

88MM

CCNN

99MM

CCNN

11NN

CCNN

11UU

CCNN

0011UU

CCNN

11

CCNN

22

CCNN

TTXXEETTSSRR__PPTT

nnEEWW__PPTT

TTIIAAWW__PPTT

nnTTXXEETTSSRR

nnVVDDAA

DDNNAANN__nn44SSCC

nnEEOO

nnEEWW

TTSSRRUUBBKKLLCC

nnTTIIAAWW

9-5

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

R

C

3

2

0

1

7

0

R

C

3

3

0

0

9

6

C

C

2

2

0

0

5

6

C

C

2

2

1

0

1

4

C

R
2

2

0

1

0

3

P

_

B

U

L

C

C

2

2

0

0

9

2

0
0
2
_
D
H
_
P
T

C
2
1
5

TP_CS_RAM

TP_BE200

T

UME200

TP_WEn

TP_RSTEXT

T

I

TP_OE

R

R

R

C

3

3

3

2

2

4

2

0

0

W

A

_

P

T

R

R
3
2
3

C

3

3

3

2

2

3

4

1

6

9-6

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

9-3.

Charging Part

Abnormal charging part

Check the U304 pin

U304 pin

>5.0V

AUX_ON)

34(

L"?

="

Yes

Yes

Yes

38

No

No

Check the circuit related to

V_EXT_CHARGE

Check the circuit related to

AUX_ON signal

_5V

Check the U304 pin

1.25V

≒

Yes

END

36

No

Resolder or replace U304

9-7

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

VV

TTAABBVV

770033RR

_OOII__DDDDVV

VV88..11__WWOOLL_

V

V33..33__DDSS__DDDDVV

550033CC

001133CC

000033AATT

990033RR

660033CC

111133CC

VV00..33__CCCCVV__MMIISS

221133CC

331133CC

VV88..22__XXTT__XXRR__DDDDVV

441133CC

551133CC

VV88..22__NNYYSS__CCCCVV

771133CC

991133CC

11

000033TTAABB

22

VV55__EEGGRRAAHHCC__TTXXEE__VV

VV55__SSUUBBVV

110033DDZZ

332233CC

222233CC

441133RR

TTAABBVV

NNII__KKCCAAJJ

NNOO__XXUUAA

552233CC

662233CC

881133RR

992233CC

55000011

NN__YYEEKKNNOO

TTAABBVV

0

2

1

404

424

414

E

E

D

D

D

D

V

V

D

D

D

D

A

A

V

V

V

9933

8833

7733

6633

5533

4433

3333

2233

1133

0033

9922

8822

7722

V
2

1

1

2

S

S

F

F

F

F

SSSSVV

V

V

R

R

R

R

GGHHCCVV

NNIIVVBBSSUU

RRUUCCGGHHCC

22CCEERR__

11CCEERR__

EESSNNEESSTTAABBVV

AASSIIVV

DDNNGGFFEERR

CCFFEERR

SSAAIIBBCCIIMM

YYEEKKNNOO__

CCTTNN

N

N

N

N

E

E

E

E

M

M

M

M
I

I

I

I
S

S

S

S

4

6

545

262

VV88..11__WWOOLL__OOII__DDDDVV

5

6

5

3

4

454

464

555

434

444

T

T

T

T

D

D

D

D

C

C
C

C
V

V
M

M
I

I
S

S

D

D
C

C
S

S
R

R
M

M
I

I
S

S
_

_

5
252

A

A

A

A

D

D

D

D

B

B

B

B

V

V

V

V

V

V

V

V

C

C

O

O
I

I

H

H

D

D

D

D

C

C

C

C

K

K

O

O

C

C

I

I

L

L

A

A

M

M

M

M

I

C

C

I

I

I
S

S

D

D

S

S

S

S

S

S

3

2

4

232

222

242

9

8

7

484

474

D

D

D

D

D

D

D

D

V

V

V

V
2

2

P

P
L

D

L

D

440033UU

T

T
A

A

D

D

B

B

D

D

V

V

V

V

D

D

D

D

C

C

C

C

D

D

D

D

3

0

1

535

202

212

1

2

8

0

494

515

505

T

T

D

D

D

D

A

A

D

D

D

D

B

B

V

V

V

V

3

3

1

1

V

V
1

1

D

D

D

D

D

D

T

T
A

A
B

B

X

X

D

D

L

L

V

V

D

D

D

D

D

D

V

V

C

6

6

C

C

C

D

D

D

D

D

D

7

8

9

171

181

191

9

6

525

585

595

565

C

C

D

D

D

D

NCN

NCN

D

D

D

D

V

V

V

V

C

C

C

C

IICCSSOO

L

L

L

L

OOCCSSOO

QQRRII__

CCHHKKCCMMIISS

CCHHSSRRMMIISS__

FFFFOOMMIISS__||CCHHOOIIMMIISS

CCHHTTSSRR__

33OOPPGG

22OOPPGG

11OOPPGG

11NNEERRWWPP

22NNEERRWWPP

K

K

SSSSVV

D

D

D

D

2

2
3

3

D

D

D

D

K

K

V

V

V

V

L

4

4

5

L

5
D

D

6
161

SSSSVV

C

D

D

C

4

5

141

151

881133CC

002233CC

112233CC

000033CCSSOO

22

11

22

33

44

55

66

77

88

99

0011

1111

2211

3311

7755

33

442233CC

11

771133RR

TTTTAABB__SSEEMM

99..22__HHGGIIHH__OOII__DDDDVV

VV66..22__DDDDVVAA

VV88..22__MMAACC__DDDDVV

VV33..33__BBSSUU__DDDDVV

11__LLLLPP__DD

VV22..

DDVV

UUMMPP__TTII

nnFFFFOOMMIISS

NNOOTTSSRR

UUMMPP__NNOO__FFEERR

LLRRTTCC__EERROOCCVV

TTIIGGIIDD__zzHHKK2233

LLCCSS

AADDSS

003333CC

VV22..11__EERROOCC__MMSSGG__DDDDVV

110033LL

113333CC

333333CC

223333CC

443333CC

VV33..33__BBIIVV__DDDDVV

VV66..22__AAFFHH__DDDDVVAA

VV33..33__YYEEKK__DDDDVV

9-8

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

Z
D

3
0
1

C
3
1
0

C305

C
3
1
1

C208

C207

C
3
2
3

C
3
1
3

C319

C317

C314

C312

TA300

C
3
1
5

C
3
2
0

C
3
1
8

C321

C324

R314

R318

C32 5 C326 C329

4
0
3

U

C

3

0

0

S

O

D400

C331

L
3

0
1

C334

R317

C330

C
3
3
3

C
3
3
2

9-9

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

9-4.

Sim Part

Phone can't access SIM Card

Yes

Check the SIM_VCC_3.0V

Yes

Check the SIM connector's

connector's to SIM card

①

No

Check the circuit related to C312, C335,

C337, R319

②

No

resolder or change SIM300

Yes

Check the circuit around SIM300

input circuitry

Yes

END

③

No

Check the related circuit of SIM300

9-10

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

AABBVV

VV

TT

770033RR

VV88..11__WWOOLL__OOII__DDDDVV

3__DDSS__DDDDVV

VV33..3

550033CC

001133CC

000033AATT

990033RR

660033CC

111133CC

VV00..33__CCCCVV__MMIISS

221133CC

331133CC

VV88..22__XXTT__XXRR__DDDDVV

441133CC

551133CC

VV88..22__NNYYSS__CCCCVV

771133CC

991133CC

11

000033TTAABB

22

VV55__EEGGRRAAHHCC__TTXXEE__VV

VV55__SSUUBBVV

110033DDZZ

222233CC

332233CC

441133RR

TTAABBVV

NNII__KKCCAAJJ

NNOO__XXUUAA

552233CC

662233CC

881133RR

992233CC

55000011

NN__YYEEKKNNOO

VV00..33__CCCCVV__MMIISS

0
404

E

E
V

V
A

A

9933

S

S
V

V

SSSSVV

8833

GGHHCCVV

7733

NNIIVVBBSSUU

6633

RRUUCCGGHHCC

5533

22CCEERR__

4433

11CCEERR__

3333

2233

AASSIIVV

1133

DDNNGGFFEERR

0033

RR

CCFFEE

9922

SSAAIIBBCCIIMM

8822

YYEEKKNNOO__

7722

CCTTNN

3

4

2

1

424

414

C

C

D

D

D

D

C

C

D

D

D

D

V

V

V

V

V

V

2

2

1

1

M

M
I

I

F

F

F

F

S

S

R

R

R

R

EESSNNEESSTTAABBVV

D

D
C

C
S

S

N

N

N

N

R

R

E

E

E

E

M

M
I

I
M

M

M

M
I

I

I

I

S

S

S

S

_

S

_

S

5

6

5

434

444

555

464

454

T

T

T

T

D

D

D

D

A

A

A

A

D

D

D

D

B

B

B

B

V

V

V

V

V

V

V

V

C

C

O

O
I

I

H

H

D

D

D

D

C

C

C

C

K

K

O

O
I

I

C

C

L

L

A

M

M
I

I
S

S

A

M

M

C

C

D

D

I

I

S

S

S

S

S

S

9

8

7

494

484

474

D

D

D

D

D

D

D

D

D

D

D

D

V

V

V

V

V

V

3

3

2

2

P

P

D

D

L

L

D

D

440033UU

T

T

T

T

A

A

A

A

D

D

B

B

B

B

D

D

X

X

V

V

V

V

L

L

V

V

D

D

D

D

D

D

D

D

C

C

C

C

C

C

C

C

D

D

D

D

D

D

D

D

6

1

2

0
505

D

D
D

D
V

V
1

1
D

D

D

D
D

D
V

V
6

6
D

D

8

9

565

515

525

585

T

T
A

A
B

B
V

V
1

1
D

D

595

D

D

C

C

D

D

D

D

NCN

NCN

D

D

V

V

V

V

C

C

C

C

IICCSSOO

L

L

L

L

OOCCSSOO

QQRRII__

CCHHKKCCMMIISS

CCHHSSRRMMIISS__

FFFFOOMMIISS__||CCHHOOIIMMIISS

CCHHTTSSRR__

33OOPPGG

22OOPPGG

11

GG

OOPP

11NNEERRWWPP

22NNEERRWWPP

K

K

D

D

D

D

SSSSVV

2

2
3

3

D

D

D

D

K

K

V

V

V

V

5

4

5

L

L

4

D

D

SSSSVV

D

C

C

D

881133CC

002233CC

112233CC

000033CCSSOO

22

11

22

33

44

55

66

77

88

99

0011

1111

2211

3311

7755

33

442233CC

11

771133RR

TTTTAABB__SSEEMM

99..22__HHGGIIHH__OOII__DDDDVV

VV66..22__DDDDVVAA

VV88..22__MMAACC__DDDDVV

VV33..33__BBSSUU__DDDDVV

VV22..11__LLLLPP__DDDDVV

UUMMPP__TTII

nnFFFFOOMMIISS

NNOOTTSSRR

UUMMPP__NNOO__FFEERR

LLRRTTCC__EERROOCCVV

991133RR

OOIIMMIISS

S

000033MMIIS

11

TTSSRRMMIISS

KKLLCCMMIISS

553333CC

22
33

77
88
99

773333CC

66

11

66

55

22

55

44

4433

2211

2211

77

1111

88

1111

0011

99

0011

GG

GGGG

GG

33114411

55116611

9-11

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

Z
D

3
0
1

C
3
1
0

C305

C
3
1
1

C208

C207

C
3
2
3

C
3
1
3

C319

C317

C314

C312

TA300

C
3
1
5

C
3

C321

2
0

C324

D400

R314

R318

C32 5 C326 C329

C331

L
3

4
0

0
1

3
U

C
3
1
8

3

0

0

S

O

C

C330

C
3
3
3

C334

R317

C
3
3
2

0

S

I

M

3

0

TP101

L106

L114

C108

R109

R
1

U

1

0

0

0
1

F

1

0

1

L111

C
1
3
4

C
1
0
5

C103

C100

C106

U102

C
1
0
2

C111

R105

C

R

3

3
1

3
7

9

C335

C
1
2
7

C411

L
4
0
4

C410

9-12

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

L
4
0
3

ZD402ZD403

Flow Chart of Troubleshooting

9-5.

Microphone Part

Microphone does not work

Check the connection

from MIC

C216=

2.15V ?

Yes

Yes

No

No

Resolder MIC

Check the circuit related to TA400, R402, R450,

R451

Check the circuit

from UCP20

Check the MIC

0 to

Yes

Yes

END

MIC

No

No

Check the path from Main IC to MIC

Replace the MIC

UCP

9-13

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

200