Samsung i9000 Troubleshooting 7

Level

8a.

a-1. Block Diagram

8

3

Repair(HW REV0.8)

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a-2. PCB Diagrams

8

a-2-1. Top

8

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a-2-1. Bottom

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a-3. Flow Chart of Troubleshooting

8

Equipments

Power Supply



Oscilloscope



Digital Multimeter



driver, Tweezer

+



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8a-3-1.

Power On

Power On'does not work

'

Check the Battery Voltage

is more than

check current consumption

Check U503(PMIC) and

C518

(

C520>1.8V, C522,>

>=100

Power on voltage

V, C519

>1.2

>1.8

Yes

mA

Yes

V)

3.3V

1.2V

>1.1

V,

C529

No

Check the problem point(short, open, crack etc)

Change the Battery

Because of batt. power low)

(

Download again

and If PMIC has problem, change U503

Yes

Check Resistance Values of

C230, C231, C518, C554. Are

the values are less than

check the initial operation

ohm?

No

Check the Clock at

OSC501 that

Frequency is

Yes

END

100

32K

Yes

No

Replace capacitor or capacitors that has/have less

than

Resolder or Replace OSC501, C517 and

ohm resistance.

100

C539

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8a-3-2.

Initial

Initial Failure

Yes

The pin

swing properly

The pin

swing properly

AP_PS_HOLD(TP501) and

AP_N_RST_IN(R507)

lowHigh"?

"

There is

32.768

at OSC200 and OSC501

of U206

#1,2

1.8V of U206=

#11,12

2.8V

Yes

KHz wave forms

Yes

=

and0V?

=

No

check U206 and UCP400 and related parts(short,

No

if U503 has some problem, it is to be replaced)

(

No

Check U503(crack, open, etc)

Replace OSC

crack, etc)

200

and OSC501

R233

There are24MHz wave forms at OSC400 and26MHz wave forms

at OSC100(C128)

LCD display OK?

Sound is OK?

>= 1.8

END

V?

Yes

No

Check UCP200 and related parts(short, crack,

No

Replace OSC

No

Check the LCD part(short, crack, etc)

Check the Audio Part(short, crack, etc)

etc)

and OSC100

400

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8-9

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8a-3-3.

Charging Part

Check IFC300 pin#1whether

voltage reading is greater than

Check U503 DCIN whether

Abnormal charging part

Yes

4.9V

Yes

is measured

C502)

(

Yes

5V

No

Check the TA

TA may not be connected properly)

(

Resolder or Replace U301

Battery is charging?

Yes

END

No

Resolder or Replace U503

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8a-3-4.

Sim Part

NO SIM

Yes

Check the connection of

the HEA301

Yes

Check the Sub PCB

Yes

END

No

Reconnect the Sub PCB

T_FLASH_D(0) T_FLASH_D(2)

T_FLASH_DETECT

SPK_OUT_R_P SPK_OUT_R_N

R330

VTF_2.8V

HEA301

1 3 5 7 9 111112

15

C

C N

N

7

8

1

5

U

C539

C517

1 0 5 P T

C553

C 3 2

C

9

2 8

C 3

4

3 0

V 3 1 6

2

4

6

8

10

12

C

N

0

9 1

2

C 5 1

L502

9

C 5 1

L501

8

R

4

3

5

7

R

4

2

C508

2

4

C

5

0

5

6

9

4

R 3

5

0

5

U

3 0

SC610

1 3 5 7 9

13 13 14 14 15 1616

C330

V307V306 V310

C329

C 3 3 9

C 5 3

C533

7

R326

R327

C336

C337

C 3 3 3

C338

U 3 0

C340

7

R328

R329

R340

R331

R 6 0 4

L 6

C

0

6

1

0

V311

1

V312

U 6

V310

0

R

C

1

6

2

0

1

8

R603

0

3

C532

C536

C

C538

C

5

3

5

3

4

5

0

C

4

3 3 2

C501

C

C503

5

OSC501

2

3

R501

1 0 3 A

V308

E

V307

H

V306

V309

CP_VSIM_1.8VVCC_2.8V_PDA

T_FLASH_D(1) T_FLASH_D(3) T_FLASH_CLKT_FLASH_CMD SIM_RST SIM_CLK SIM_IO AP_JTAG_EXTRST

V311V309

V312V308

R

4

3

4

8

3

R

4

2

5

9

8

C 4

C

1 4

5 1 0

C 4 1 3

C541

R468

R467

C542

V316

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8a-3-5.

Microphone Part

Check main microphone function

in voice call receiver mode

Yes

Check Sub-Touch Module

FPCB where main Mic is

placed for any damage(Tear

in FPC, etc)

Yes

Check the voltage at C267

2.8V

No

=

No

Change the Sub-Touch Module

Resolder or replace U210

Yes

Check component soldering

statuses of C281, C282

Yes

END

No

Resolder or replace C281, C282

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8a-3-6.

Speaker Part

Play MP3 with maximum volume level.

Check speaker function.

Yes

Check the connection of

HEA301

Yes

Check signals on L209,

L210

Yes

No

Reconnect HEA301

Resolder or replace U207

Replace the speaker

module

Yes

END

Yes

Check signals on

L209, L210 again

No

Replace UCP400

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8a-3-7.

Receiver Part

Check receiver function in voice call receiver

mode

Yes

Check the signals at ZD307,

Check the connection of

ZD308

Yes

ZD308 again

Yes

HDC302

No

Resolder or replace U207

Resolder or replace UCP200

Reconnect HDC302

Yes

Replace the Receiver-Earjack

Ass'y

Yes

END

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8a-3-8.

BT/WIFI

Check the Voltage on C162

BT/WiFi is not working

Check BT or WiFi function

Check

ON

Yes

2.8V

Yes

MHz Clock at

38.4 C177

Yes

No

=

No

etc.(If U503 has some problem, it needs to

Enable BT or WiFi Function

Check AP PMIC(U503) for Crack, Open or

be replaced)

Check OSC

102

heck the Voltage on L113

C

Check the Status of C138,

Resolder or Replace U105

1.2V

Yes

L124, ANT106

Yes

END

=

No

Resolder or change L113

Resolder or Replace C138, L124, ANT106

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8a-3-9.

FM RADIO

Check the Audio Signal at

Check the Audio signal at

FM Radio does not work

Yes

Check the connection of

HDC302

Yes

L302, L303

Yes

C250, C251

No

Connect Earjack Ass'y correctly to HDC302

Check Earphone

Check Audio Codec IC(U207)

Yes

CChange U104

Yes

END

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8a-3-10.

LCD

LCD is still off after PWR ON

Check the connection of

Check the soldering status of

Check VCC_3.0V_LCD

3.0V (

1.8V (

HDC300

EMI Filters F300~F305

C537), VLCD_1.8V

C307), V_BAT

C308)

(

Yes

=

>3.4V

No

Reconnect the HDC300

Resolder EMI Filters

Check PMIC(U503)

Yes

Replace LCD Module

Yes

END

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8a-3-11.

TSP

Touch Screen does not work

Yes

Check LCD Connector on

Main PBA

Yes

Check the TSP Connector on

LCD Module

U300 Pin

C310) and Pin

6=2.8V(

C306, C344)

(

Yes

C305,

8=3.3V

No

Reconnect the HDC300

Reconnect TSP Connector

Resolder or Replace U300

Yes

Replace LCD Module

Yes

END

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8a-3-12. 5M

CAM

Camera" function does not work

"

Yes

Check the Camera

connector on Main PBA

Yes

Check the voltage

C531,C533,C535

C534, C536

C532, C521

C352

=1.8

=1.2V

=2.8V

=2.8

V,

No

V,

No

Reconnect the HDC301

Resolder U503, U303 or change PBA

Yes

Check F308 Pin1is24MHz

Yes

Replace the camera module

END

No

Check UCP400 related to24MHz

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T

L

NI

N

G

T

V

A

H

O

C

O

A

B

C

M

D

C

I

B

T

V

E

T

D

A1

A B

BUCK1

IN1

A2

IN1

E1

IN2

BUCK2

E2

IN2

H1

IN3

BUCK3

H2

IN3

K2

IN4

BUCK4

K8

LDO4,5,7

IN5

K9

IN5

C9

IN6

LDO11,12,13

D9

IN6

A7

IN7

LDO14,15,16

B7

IN7

G9

LDO6,8,9

IN8

H9

IN8

B9

IN9

LDO2,3,10,17

B8

LDO2

C8

LDO3

K10

LDO4

U503

4 D N

C

G

N

P

4

2

1

K

J10

LDO5

H10

LDO6

K7

LDO7

G10

LDO8

F10

LDO9

C7

LDO10

E10

LDO11

D10

LDO12

C10

LDO13

A6

LDO14

A8

LDO15

A10

LDO16

B10

LDO17

B1

LX1

B2

LX1

C1

LX1

F1

LX2

F2

LX2

F3

LX2

J1

LX3

J2

LX3

J3

LX4

K3

LX4

A4

XIN

A3

XOUT

3

4

2

1

2

1

D

N

G

P

A

1

2

1

5

1

2

5 4 J

D

B

K

D

A

G

VALIVE_1.2V_C110

0.8V~1.3V UP TO 10mA

VUSB_1.1V_C110

VADC_3.3V_C110

VTF_2.8V

0.8V~1.3V UP TO 50mA

1.6V~3.6V UP TO 300mA

C524 C535

C522

1.6V~3.6V UP TO 150mA

C525

1.6V~3.6V UP TO 150mA

C526

VLCD_1.8V

3.0V~3.6V UP TO 150mA

VUSB_3.3V_C110

VDAC_3.3V_C110

C527 C528

VCC_2.8V_PDA

VPLL_1.2V_C110

C529

CAM_SENSOR_CORE_1.2V

CAM_AF_2.8V

CAM_ISP_SYS_2.8V

CAM_ISP_RAM_1.8V

C532

C533

CAM_ISP_HOST_2.8V

CAM_SENSOR_IO_1.8V

C534

VCC_3.0V_LCD

C536

L502

L503

L504

C537

VARM_1.2V_C110

VINT_1.1V_C110

C518

VCC_1.8V_PDA

CAM_ISP_CORE_1.2V

C519

C521

C520

CAM_IO_EN

V_BAT

C351

U303

VDD4VOUT

3

CE

5

GND

D N G

CAM_SENSOR_A2.8V

1

2

C352

CAM_MCLK_F

CAM_HSYNC_F

CAM_VSYNC_F

CAM_PCLK

F308

OUT1

OUT2

OUT3

OUT4

GND

5

6

7

8

1

IN1

2

IN2

3

IN3

4

IN4

GND

C315

L309

CAM_MCLK

CAM_HSYNC

CAM_VSYNC

CAM_PCLK_F

910

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8a-3-13.

GSM

RX

850

NORMAL CONDITION

catch the channel?

NO

Check C115

Check the Voltage at

C186=V_BAT

Check C126, L107,C125



Check component

soldering status OK at

-65

F100



dBm

-65

NO

YES

?

YES

dBm

?

YES

NO

CHECK soldered

RFS100, L103,C115,L118

resolder or change

PAM101, C186

resolder or change

C126, L107,C125

resolder or change

F100

Check F100 PIN

Check the voltage at

R100=V_BAT

{

C110, C264

&{

C111,C112,C233

&{

C109,C263

&{

Check the freq. at C128

GSM850 Receiver is O.K?

C112

-65



=1.8GV?}

MHz

:26

END

dBm

YES

= 2.85V ?}

=1.8

= 2.85V ?}

YES

?

YES

8,9

NO

?}

V?}

YES

NO

resolder or change

F100

resolder or change

UCP200

change or resolder

OSC100

resolder or change

UCP200

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