Samsung i300 Service Manual

MITs TELEPHONE

SGH-i300

MITs 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-i300 Specification

1-1. PDA specification

Parts Name Description Note

PXA272

Core : Xscale

CPU

SRAM

Memory

RAM K4M56323PE, SDRAM, 4 Bank, 8M * 32 Bit

LCD Resolution : 320 x 240 QVGA 1.98" 65K TFT Color

Auido CODEC WM9713, Dual codec stereo audio

Melody YMU765, 64 poly

External Card T-FLASH Card

Camera 1/3.2" 1.3 Mega Pixels CMOS Image Sensor

JTAG

Hard disk 3G Hard disk driver

UART RS-232C , USB 1.1

Core Frequencies : 416 MHz

Clock : 13 MHz, 32,768 KHz

FLASH : 64M Byte

IDT70P248L, DUAL PORT STATIC Memory, 8K/4K * 16 Bit

IEEE 1149.1 Portocol support, Flash Programming Control

IrDA HSDL 3003

Battery Standard/Extend Capacitance : 1000/1700mA

Speaker Impedance : 8Ω, Size : 13 x 15 * 3.4t

Receiver Impedance : 32Ω,Size:6x11*3t

Motor RPM 10000, Size : Bartype 8 mm

KeyMatrix 5*7

1-1

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

SGH-i300 Specification

1-2. Phone Specification

Parts Name Description Note

Trident EF version

Core : DSP16000/ARM7IDMI

CPU

DSP Core : RAM(20k * 16), ROM(144K * 16)

ARM CORE : RAM(4K * 32), ROM(2K * 32)

Clock : 13 MHz, 32,768 KHz

LRS1828

Memory

ROM:4M*16Bit*2

RAM:2M*16Bit

Single-cell Li-lon Charger, SIU, LED Driver

PMIC

Power-On/Off and reset control logic

8-bit ADC, Seven programmable low-drop-out regulators

1.8/3.0V SIM power supply and logic level translators

Supports GSM 2+ new feature : multislotting( GPRS and

HSCSD)

CODEC

ADC and DAC function for baseband and voice band

DAI(digital audio interface)

32.768 clock on-chip oscillator

GMSK modulator(88/144 bits)

Low-IF Receiver, Universal Baseband Interface

Offset-PLL Transmitter

RF Transceiver

Dual RF Synthesizer, GPRS Class 12 Compliant

3-Wire Serial Interface

Dual and Triple and Quad -Band Support(GSM850/E-

GSM900/DCS1800/PCS1900)

Complete Power Control Solution

Single 2.9V to 5.5V Supply Voltage

PAM

GSM, E-GSM and DCS/PCS

Products/GPRS Class 12 Compatible

+35dBm GSM Output Power at 3.5V/ +33dBm DCS/PCS Output

Power at 3.5V

GSM : 897.50 ± 17.5 MHz

FEM

DCS : 1747.50 ± 37.5 MHz

GSM : 1880.00 ± 30.0 MHz

JTAG IEEE 1149.1 Protocol Support, Flash Programming Control

UART RS-232C

1-2

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

2. SGH-i300 Flow Chart of Troubleshooting

2-1. Power On

'Power on' does not work

Yes

Check the

current consumption

more than 20mA

Yes

Check the

Pin 1 of U323 or

U302 is High

Yes

Check the

Pin 1 of U305 is High

Yes

Check the

Vbat more than 3.6V

Yes

Check the

Pin 4 of U301 is

more than 3.3V

Yes

No

Press nPower key or

hardware Reset

Charge the Battery

Check the

Pin 8 of U 306 is High

Check the

Pin 5 of U307 is

more than 1.0V

Yes

Check the

Clock signal at

OSC101 and OSC102

Yes

Check the initial operation

Yes

END

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

No

2-1

Check the

Pin 1 of U 307 is High

Retry Hardware Reset

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams

VBAT

R304

U306

PDA_PWR_KEEP AUTO_PWR

END_PWR

nPWR_SNS

nALARM_SNS

C348C347

81

HOLE

PWR

7

SW DC

6

SENSE

5

DEN

FET

GND

2

3

4

RTCALARM

VBAT

U323

4

3

GND

NC

OUT

VDD

1

2

R302

C330

POWER_DET

VBAT

R316

Q302

1G

POWER_DET

VBAT

2S

3D

R318

R307

C317

R306

R308

1

2

R353

VBAT

5

3

R311

U304

BAT33

U315

C312

4

VBAT BAT33

U301

1

IN5OUT

2

GND

4

3

EN

REF_BYP

C313

C331

3.0V

C314

VBAT

R317

C346

5

1

VCC

B

4

Y

2

A

GND

nPOWER_FAIL

3

SYS_EN

VBAT

U302

C307

1

2

3

IN

GND

EN

2-2

OUT

REF_BYP

5

4

C309

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

3.0V

VCC_CPU

C308

SYS_EN

VBAT

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams

1.8V

VCC_MEM

U305

1

IN

2

GND

3

EN

OUT

BYP

5

4

PWR_EN

C324

C301

R310

U307

1

2

36

4

ITH

VFB

GND

PLLLPFRUN

S/MODE

VIN

SW

R309

C325

R355

8

R356

7

L301

5

1.25V 1.35V 1.1V

PLL13 SRAM11

CORE12

C303

VBAT

C319

C316

C302

1.35V

CORE12

C320

R312

R303

C327

2-3

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams

2-2. Initial part

Initial Failure

Yes

Check the "nRESET_IN" signal at the R110 is High

Yes

Check the

"nGPIO_RESET"at the

GPIO1ofU101isHigh

Yes

Check the "nTrst"

at U101 is High

Yes

Check the connections and

initialization using Factory Test

Program

Yes

No

Check the BAT33

Check the U102

Download again

Check the LCD connector CN501

and resolder bridge

Yes

END

BAT33

U102

1

GND

RESET

C146

VCC

3

2

nRESET_IN

2-4

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

2-3. Charge Part

abnormal Charging part

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams

Yes

Check the

pin 22 of

CN605 = 4.2V

Yes

Check the

pin 1 of

CN301 = 4.2V

Yes

Charging

Yes

END

No

Replace TC

Check the path from

CN605

to pin 1 of CN301

CHARGE_DET

VBAT VBAT

VBUS

USB_D+

SDS_TXD

SDS_RXD

PWR_GND

USB_D-

FFTXD

FFRXD

AUTO_PWR

D602

D603

CN605

26

NC

25

NC

24

23

22

21

20

19

18

17

16

R609 R621 R622

R610 R623 R624

9

6

5 1

1

6

H

T

8

7

2

1

6

H

T

0

1

2

6

H

T

2

1 2 6

H T

3

2

6

H

T

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

2-5

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams

2-4. SIM Part

Phone can't access SIM

card

Yes

Check the pin 1 of CN701 voltage is 2.8V

Yes

Check the

SIM connector CN701

connection to SIM card

Yes

END

0

5

3

5

1 1

3 J

F

1

R

D

U

D

C

V

H _ D N

G

1

8

B

C

B

K

E

5

1

7

2

Q

6

D

C

D

S

N

D

P

G

_

V

D

N

G

VDD34

D V

VDD12

UP_CLK UP_RST

UP_IO

SIM_IO SIM_RST SIM_CLK

C11 J13

N9 R10 P10 J11 K11 K14

SIMCLK SIMRST SIMDATA

No

C703

C705 C706

Check the circuit to

CN701

Resolder CN701

22

C704

CN701

6

11

33

5

4

7GG89GG10

C702

2-6

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

2-5. Microphone Phone

Microphone does not work

Yes

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams

connecttion from CN602

Check the

Yes

Audio loopback is enabled

by board test program

R424,R431 = 2.2V

Yes

Check the

Pin 23 of U401=

sine wave

Yes

END

MICINP

MICINN

C440

C444

AUDIO30

R426

No

Change Main key FPCB

Resolder

R424,R426,R430,R431

No

Hardware reset or

resoldering or

Download Image

MIC+

C442

MIC-

R424

R425

AUXINP

AUXINN

C446

AUDIO30

R430

C450

R431

C452

C457

SEND_END

R436

2

R438

Q402

R432

C456

BAT33BAT33

R435

JACK_S

3

1

EAR_SPKR

EAR_SPKL

6

3

C459

C460

0 4 D Z

C491

1

2

5

4

3

ZD402

2-7

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

NC_GND

EAR401

1

P_GND

2

MIC_P

3

C453

C455

R439

MIC_N

4

SPK_P

SPK_COM

5

6

SPK_N

7

N.C

8

INT

9

ADC

10

P_BAT

G

12 13GG14

11

C490C489

R401

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams

2-6. Speaker Part

Speaker does not work

Yes

CN503 pin 3,4,5,6

=sinewave

Yes

Check the

Pin13ofU404isHigh

Yes

Check the

Pin 1 of U404 is High

Yes

Is there sinewave

signal on the U404 pin 12,

24 during window media playing?

No

Replace speaker and if

speaker is well, than

check the motor & flash

LED

Hardware Reset or

Download Image

Hardware Reset or

Download Image

Hardware reset or

resoldering or

Download Image

Yes

END

VBAT

U404

1

C474

EN_L

24

VIPL

22

VIML

23

VREFL

18

VOPL

16

VOML

3

VDD

7

VDD

9

VDD

15

VDD

19

VDD

21

VDD

SAPA_EN SAPA_EN

LOUD_SPKL LOUD_SPKR

LOUD_GNDL LOUD_GNDR

MSPKLP MSPKLN

C448 C473

R422 R427 R423

R420 R419

C485

C484

C407

C443

2-8

VREFR

13

EN_R

12

VIPR

10

VIMR

11

6

VOPR

4

VOMR

2

VSS

5

VSS

8

VSS

14

VSS

17

VSS

20

VSS

25

GND

26

NC

27

NC

C409

C487

R428

R433 R429

C486

C449

C477

MSPKRP MSPKRN

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams

2-9

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams

2-7. Receiver Part

Receiver does not work

Yes

R434,R437 = sine wave

Check the

Yes

Check the

Pin 2,10 of U409

is sine wave

Yes

Check the

pin 3,9 of U409 is

Sine wave

Yes

Check the

Pin 35,36 of U401

is Sine wave

No

Replace Receiver

Check the Pin 4,8 of

U409

Check the Pin 4,8 of

U409

Hardware Reset or

resoldering or

Download Image

MAIN RCV EAR RCV EAR MP3

MAIN MP3

MIC_WM_OUTN

EAR_RCVN

EAR_RCVP

MIC_WM_OUTP

LOUD_SPKL

Yes

END

AUDIO30

P O P _ R A

OUT3

7 3

8

SPKVDD

3

HPL

9 3

HPGND

E

1

4

5

6 3

3

L

D

R

K

N

P

G

S

K P S

0

2

3

4

2

O

T

P

N

U

A

O

C

O

M

U401

C493

RCVN

EAR_RCVN

JACK_S

EAR_SPKL

2-10

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

U409

1

2

NO1

3

COM1

4

IN1

5

NC1

NO2V+

COM2

IN2

NC2

GND

10

9

8

7

6

RCVP

EAR_RCVP

JACK_S

EAR_SPKR

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams

2-11

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

SGH-i300 Flow Chart of Troubleshooting and Circuit Diagrams

2-8. Key Matrix Part

Check key initial

operation

Yes

Check the

Pin 3,5,7,9,11 of

CN602 is High

Yes

When one of the

main keys is pushed

one of pin 3,5,7,9,11 of

CN602 is High?

Yes

When one of the

side keys is pushed

one of pin 3,5,7,9,11 of

CN602 is High?

Yes

END

No

Check the R126,

R127,R128,R129,

R142,R143

Replace the main key

PCB

Replace the main key

PCB

2-12

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams

V_LCD30VBAT

CN602

1

3

KBR(0) KBR(1) KBR(2) KBR(3) KBR(4)

nGPIO_RESET END_PWR

MIC+

MIC-

4

9

2

2 6

6

H

T

C601

3

5

7

78

9

11

11 12

13

15

15 16

17

19

21

23

23 24

25

25 272728

29

2

4

6

8 10

10

12 14

14

16 18

18

20

22

24 26

26

28 30

30

2

3

0

6

D

C602

D

Z

KBC(0) KBC(1) KBC(2) KBC(3) KBC(4) KBC(5)KEY_LED_CONTROL

JOG_R JOG_L KBC(6)

2-13

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

2-9. Led Indicator Part

LED indicator does not

work

Yes

SGH-I300 Flow Chart of Troubleshooting and Circuit Diagrams

Check the

Pin 2 of

Q601,Q602,Q603,Q605

is high

Yes

Check the

R627 is high

Yes

END

BLUETOOTH_LED

RED_LED

GREEN_LED

R605

R612

R614

Q601

Q602

Q603

No

Check the

R605,R612,R614,R616

No

Check

R601,R628,R628,R630

BAT33

R627

R601

LED603

PDA LED

3

2

1

3

2

1

3

2

1

R602

8 2 6 R

VBAT

R626

LED602

3

PHONE LED

0

9 2

3

6

R

BLUE_LED

Q605

2

R616

3

1

2-14

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization