Samsung SGH-E910 Service Manual

GSM TELEPHONE

SGH-E910

GSM TELEPHONE

CONTENTS

1. Specification

2. Flow Chart of Troubleshooting

3. Exploded Views and Parts List

4. Electrical Parts List

5. PCB Diagrams

6. Block Diagrams

1. SGH-E910 Specification

1-1. GSM General Specification

GSM900 Phase 1

Freq. Band[MHz]

Uplink/Downlink

ARFCN range 1~124

Tx/Rx spacing 45MHz 45MHz 95MHz 80MHz

Mod. Bit rate/

Bit Period

Time Slot

Period/Frame

Period

Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK

MS Power 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm

890~915 935~960

270.833kbps

3.692us

576.9us

4.615ms

EGSM 900

Phase 2

880~915 925~960

0~124 &

975~1023

270.833kbps

3.692us

576.9us

4.615ms

DCS1800

Phase 1

1710~1785 1805~1880

512~885 512~810

270.833kbps

3.692us

576.9us

4.615ms

PCS1900

1850~1910 1930~1990

270.833kbps

3.692us

576.9us

4.615ms

Power Class 5 p cl ~ 1 5 p cl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl

Sensitivity -102dBm -102dBm -100dBm -100dBm

TDMA Mux 8 8 8 8

Cell Radius 35Km 35Km 2Km -

1-1

SGH-E910 Speclflcation

1-2. GSM Tx Power Class

TX Power

control level

5 33±2 dBm

6 31±2 dBm

7 29±2 dBm

8 27±2 dBm

9 25±2 dBm

10 23±2 dBm

11 21±2 dBm

12 19±2 dBm

13 17±2 dBm

14 15±2 dBm

15 13±2 dBm

16 11±3 dBm

17 9±3dBm

18 7±3 dBm

19 5±3 dBm

GSM900

TX Power

control level

0 30±3 dBm

1 28±3 dBm

2 26±3 dBm

3 24±3 dBm

4 22±3 dBm

5 20±3 dBm

6 18±3 dBm

7 16±3 dBm

8 14±3 dBm

9 12±4 dBm

10 10±4 dBm

11 8±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

DCS1800

TX Power

control level

0 30±3 dBm

1 28±3 dBm

2 26±3 dBm

3 24±3 dBm

4 22±3 dBm

5 20±3 dBm

6 18±3 dBm

7 16±3 dBm

8 14±3 dBm

9 12±4 dBm

10 10±4 dBm

11 8±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

PCS1900

15 0±5 dBm

1-2

15 0±5 dBm

2. SGH-E910

Flow Chart of Troubleshooting

2-1 BASEBAND

2-1-1. Power ON

'Power On' does not work

Yes

Check the current

consumption more

than 100mA

Yes

Check the VBAT more than 3.3V

Yes

Check the

VLDO7_1.8V

of U301 is more than

1.8V

Yes

Check VCCD_1.5 of

U304=1.5V

Yes

Check VRF of

U301=2.9V

No

Download again

Charge the Battery

①

Check U301 and C310

②

Check C315 and U301

Check C343 and U304

③

Check U301 and C314

Yes

Check C115

Freq = 13MHz

Vp-p > 0.8V

Yes

Check the initial operation

Yes

END

2-1

No

④

Check the clock C115

SGH-E910 Flow Chart of Troubleshooting

U301

3

0

1

B

C

7

5

6

D

V

UP_CLK UP_RST

SIM_RST SIM_CLK

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

CSN_PSC

SCLK_PSC

SDO_PSC

SDI_PSC

CH_BDRV

CH_ISEN

CH_RES

ADC_AUX2 ADC_AUX1

N E _

RTC_ALMN

G N

Q

R _

R T

B

I

N

V

I

9

0 1

L

VDD34 VDD12

UP_IO

SIM_IO

VSIM

VRTC

VACC

VEXT VBAT

VREF CREF

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

C322

R320

SIMCLK SIMRST SIMDATA SIM_IO SIM_RST SIM_CLK

KEY_BL

VIB_DRV

DCS_TX_EN GSM_TX_EN

UP_CS UP_SCLK UP_SDO UP_SDI

R302

VBAT

R301

ICHRG

RTCALARM

VSIM_2.9

VCCB_2.9

C309

VCCD_1.8

VCCA_2.9

VCCB_2.9

C310 C313

C312

BP_VF

VRF_2.9

V300

R304

VCCD_2.9

C315C314

VCCB_2.9

VLDO1_1.5V

C316

C318

VRTC_1.5

R303

S O P

1

2

G E

C317C311

BAT301

N

2-2

C319 R305

SGH- E 9 10 Flow Chart of Troubleshooting

VCCD_2.9

6.3V

VBAT

2

VCCD_1.5

1

F306

3

U304

1

VIN

2

GND

3

EN4FB

SW

L300

5

C343

CLK13M_TR

CLK13M_MC

CLK13M_YMU

C114

C115

2-3

R106

R107

C116

C117

SGH-E910 Flow Chart of Troubleshooting

2-1-2. Initial

Initial Failure

Yes

Check the signal at pin

K9 of U301 is

"Low" for 250ms after

when the phone is boot

Yes

Check the pin4 of

OSC201 is around

Yes

LCD display is O.K?

Yes

Sound is O.K?

Yes

Check and resolder

con-to-con connector

HDC301,HDC101 or

con-to-con FPCB

change

No

①

Check TP301 of U301

②

Check the soldered status of

UCP201, OSC201, C214, C215

③

Check HDC500 and LCD part

Check audio part

END

Yes

2-4

SGH- E 9 10 Flow Chart of Troubleshooting

ADC_AUX2 ADC_AUX1

U301

4 X

K

Q

U

L

A

C

N

_

E

C T

O X

R

1 D

K 2 3

K L C

R

_

T

C

N

C

D

I

A

M

D

5

6

3

P

R

C

Q A

M _

N E

M 3

O

1

X

K L C

N

F

1

2

U

O

W

B

_

S

_

T

_

R

W

P

5

4

1

C

T

N

O

I

_

_ P

G

I

S

J

D

E

1

E

D

S

W

O

E

S

R

P

M

9

7

0 1

L

K

N

1 0 3 P T

F

T

N

S

U

O

R

B

_

R

1

W

P

S P

P E E K _ R

W P

9

0 1

M

L

P E E K _ R

W P

N E _

RTC_ALMN

G N

Q

R _

R T

B

I

N

V

I

9 L

N

Q

E

R

_

T

B

N

I

V

VREF CREF

D15 E10

A10 E9 H10

2-5

SGH-E910 Flow Chart of Troubleshooting

IRQ4 IRQ3

IRQ2 IRQ1

PIO47 PIO34

PIO33

M4 K12

P12 P16

P18 P17

M19 M16

J16 R14

U18

DLC_DETECT VLCD_EN

MOTOR_SENSE VCAM_EN

MOTOR+ MOTOR-

EAR_SWITCH LCD_BACKLIGHT

ATCK_CTS1

ATMS_PIO45

PIO31_IRQ6 PIO00_IRQ5

N

2

0

1

D

T

T M C

_

I C M

_ 8 0

O

I P

3 1 J

A

D

_

I

C

M

_

3

1

2

O

I

P

2

3

1

L

K

_

3 T A D _

I C M

_ 4 2

O

I P

5 1 L

0

D

T

M

A

C

D

_

I

C

M

_

9

0

3

4

O

I

P

4

1

L

N

M

N M R A

L

C

A

T

C

R

T

1

2

X

R

9

7

1

F

H

E

_

Q E

P

R

E

K

E

L

6

K

C

4

R

T

S

O

I

Y

W

U O

2 3

C S O

6 1

G

P

S

P

_

1

0

9 1

O

I P

5 1 P

0

5

2

M

O

I

W

P

9

5

1

G

P

6

1

2

O

I

P

7

6

9

1

V

U

2

7

8

3

2

O

I

P

3

9

7

1

R

U

W

XOENAQ PWR_KEEP

CLK32K RTCALARM

BACKEND_EN

OSC201

4 1 2

C

5 1 2

C

2-6

SGH- E 9 10 Flow Chart of Troubleshooting

HDC500

10

14

18 20

22

26

30

34

38 40

2

4

6

8

10

12 14

16 18

20

24

28 30

32

36

40

1

3

5

7

9

11

11 12

13

15

15 16

17

19

21 22

21

23

23 24

25 26

25

27

27 28

29

31

31 32

33 34

33

35

35 36

37 38

37

39

2-7

SGH-E910 Flow Chart of Troubleshooting

2-1-3. Sim Part

Phone can't access

SIM card

Check the pin 1 of

SIM100

Voltage = 3V

YES

NO

①

Check the circuit related to

SIM100

Check the SIM

connector's

(SIM100)

connector's to SIM

card

YES

Check the circuit around SIM100

input circuitry

YES

Check the circuit around

SIM100 output

and voltage supply circuitry

YES

END

NO

②

resolder or change

SIM100

③

Check the relate d circuit of

SIM100

④

Check the relate d circuit of

22

SIM100

11

33

SIM100

6

5

4

2-8

7

7 88

99

16

12 12

1111

10 10

GG

13

1415

2-1-4. Charging Part

Abnormal charging part

YES

Battery Contact

at BTC101?

YES

Charger input of

IFC500

YES

NO

Battery Check BTC101

NO

Check the IFC500

SGH- E 9 10 Flow Chart of Troubleshooting

Check the LCD

display

YES

Check the

pin17,pin18 of

IFC500

YES

Check the pin5 of

U203=Active Low

YES

Check the pin6 of

U203=Active Low

YES

Check the pin4 of

U203=1.4v

NO

Downloader again

Replace TA

Check U203 or pin J15

of UCP201

Check U203 or pin K13

of UCP201

Check U203 or pin D14

of U301

END

2-9

SGH-E910 Flow Chart of Troubleshooting

VR101

VBAT

VCCD_2.9

VCCD_1.8

BTC101

VBAT

1

2

3

4

R134

TA101TA100

C101

TA_VEXTTA_VEXTVCCA_2.9

AUXOUTP

AUXINP

AUXOUTN

AUXINN

VCCA_2.9

R511

R513

2

R502

TR501

R519

ZD507

6

5

4

JACK_IN

R533

R547

R504

TP505

R509

R535

R506

R538 R539

ZD506

1

7 2

8

3

6

5

4

TA502

C518

IFC500

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

NC

22

NC

23

NC

24

NC

25

NC5

26

NC6

ZD501

TA500

R534

R536

VCCD_1.8

R517

R518

1

7 2

8

3

R500

R501

R503

C503

3 1 5 C

C514

R520

1 2 5 R

TA501

AOUTBP

AOUTBN

JACK_ADC

JIG_ON_IF

DLC_DETECT

SDS_TXD SDS_RXD

R512

3

EAR_SWITCH

1

2-10

SGH- E 9 10 Flow Chart of Troubleshooting

TA_VEXT

ICHRG

C227

TA200

R202

R210

C222

TA202

VCCD_1.8

R212

CHG_DET

CHG_OFF

C224

VBAT

U203

1

VL

2

IN

3

GND

4

ISET

G

91 0GG11 12

_CHG

BATT

_ACOK

_EN

G

8

7

6

5

R211

2-11

SGH-E910 Flow Chart of Troubleshooting

2-1-5. Microphone Part

Microphone does not work

Check the

assembled status of

microphone.

YES

Check the reference voltage on mic path

C410=2V

YES

Is microphone ok?

YES

END

NO

Reassemblage microphone

resolder or change

(R429,R421,R411)

Check U301

VCCA_2.9

R411

TA400

R421

MICOUTP

MICINP MIC_P

MICINN

MICOUTN

R423

R428

R424

R426

C413

C409

C410

R429

C412

2-12

MIC_N

2-1-6. Speaker Part

Speaker does not work

SGH- E 9 10 Flow Chart of Troubleshooting

Check the speaker Or con-to-con FPCB

Check the pin1 of U406

OK?

YES

is LOW?

YES

Check the pin4,pin8

of U402 is high?

YES

Is there sinewave signal

on the U403 pin17,18

during melody playing?

NO

Speaker resolder or speaker change

con-to-con FPCB change

①

U406 Check and

change

②

U402 Resolder or change

R408, R409 Resolder or

change

③

NO

Hardware reset or

U403 change

YES

Check the Pin #1

of U402 = "3.8V"

YES

Is speaker OK?

YES

END

NO

④

Check R438

Change speaker

2-13

SGH-E910 Flow Chart of Troubleshooting

VBAT

AOUTAP

SPK+

MELODY+

YMU+

YMU-

R408

R451

R452

C451

U402

10

NO2 V+

9

COM2

8

IN2

7

NC2

6

GND

GG

14

1

2

BYP GND

3

IN+

4

IN-

GND

9

1

2

NO1

3

COM1

4

IN1

5

NC1

11GG1213

U406

VBAT

VO-_SHUT

VDD

VO+

8

MELODY-AUDIO_AMP_EN

7

6

5

MELODY+

C450

8 3 4 R

R409

AOUTAN

SPK-

SPK_OUT_SEL

MELODY-

C406

2-14

C414

C407

SGH- E 9 10 Flow Chart of Troubleshooting

CP_WEN

YMU_CS

CP_OEN

D(1)

D(0)

A(0)

VCCD_1.8

)

4

5

(

D

22 21

5

4

D

U403

T

Q

S

R

I

/

4

T

Q

S

R

I

R

_ U M Y

) 6

( D

20

6 D

C N

5

6

2

3

(

D

25

24 23

33

2

3

G

D

D1

D0

/WR

/CS

A0

/RD

IOVDD

G

D

I K

D

L

E

C

L

3

1

2

R

U

T

M

C

Y

_

D

M

E

3

L

1

_

K

U

L

M

C

Y

26

27

28

29

30

31

32

34 35

C431

N E _

) 7

B

(

I V

D

19

7

R

D

T M

HPOUT-L/MONO

C

D

L L

D

P

V

7

0 4 4 R

C433

18

8

U M Y

17

2 T U O

SPVSS

P S

SPVDD

HPOUT-R

S S V

9

C434

+ U M Y

1 T U O P S

F E R V

EQ3

EQ2

EQ1

C432

36

G

16

15

14

13

12

11

10

G

VCCD_2.9

R441

C437

C436 R442

R443

VBAT

TA401

2-15

Samsung SGH-E910 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual