Samsung SGH-S410i Manual de usuario

GSM TELEPHONE

SGH-S410i

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

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1. SGH-S410i Specification

1-1

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1-1. GSM General Specification

GSM900

Phase 1

EGSM 900

Phase 2

DCS1800

Phase 1 PCS1900

Freq. Band[MHz]

Uplink/Downlink

890~915

935~960

880~915

925~960

1710~1785

1805~1880

1850~1910

1930~1990

ARFCN range 1~124 0~124 &

975~1023 512~885 512~810

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

Mod. Bit rate/

Bit Period

270.833kbps

3.692us

270.833kbps

3.692us

270.833kbps

3.692us

270.833kbps

3.692us

Time Slot

Period/Frame

Period

576.9us

4.615ms

576.9us

4.615ms

576.9us

4.615ms

576.9us

4.615ms

Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK

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

Power Class 5pcl ~ 15pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl

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

TDMA Mux 8 8 8 8

Cell Radius 35Km 35Km 2Km -

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SGH-S410i Specification

1-2

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1-2. GSM TX power class

TX Power

control level GSM900

533±2dBm

631±2dBm

729±2dBm

827±2dBm

925±2dBm

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

TX Power

control level DCS1800

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±4 dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

TX Power

control level PCS1900

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±4 dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

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2. SGH-S410i Flow Chart of Troubleshooting

2-1

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2-1.Baseband

2-1-1. Power ON

'Power ON' Does not work

Check the current consumption

Current consumption

≥100mA ?

Check the Vbat voltage

Download again

Voltage ≥3.3V ?

Check the pins of U401

C415 ≥1.8V ?

Check the Initial operation

END

C418 and C419 = 2.9V?

Charge the Battery

Checktheclockgeneration

circuit (OSC101, F100 pin#4)

Checktheclocksignal

at pin#3 of OSC101

Freq.=13MHz,Vrms ≥300mV

Check U401 and C420

Check U401 and C415

YES

C420=1.5V?

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SGH-S410i Flow Chart of Troubleshooting

2-2

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VCCD_1_8

C414

C421

M400

VCCD_1_5

C416 C417

R405

B12

VLDO_4

B10

VLDO_5

A14

VLDO_6

C12

VLDO_7

H11

VRTC

K12

VSIM

E14

VEXT

F15

VIB_DRV

A12

VL4S_A

B11

VL4S_B

D10

VL5S_A

VL5S_B C9

G11

VLDO_1

J12

VLDO_2

A13

VLDO_3

F14

VACC

E13

VBAT

SCLK_PSC

SDI_PSC M7

SDO_PSC

F13

RING_DRV

G13

LED1_DRV

G12

LED2_DRV

CSN_PSC K8

C415

VCCA_2.9V

C420

VCCB_2.9V

C419

VRF_2.9VVCCD_2.9V

C418

KEY_BL2

KEY_BL1

UP_CS

UP_SDO

UP_SDI

UP_SCLK

VSIM

DCS_TX_EN

GSM_TX_EN

MOT

VRTC_2.9V

C125

C132

R124

L109

R109

R111

C129

C126

R110

R108

3GND

VCC

F100

VRF_2.9V

R112

C131

C127

VRF_2.9V

C128

OSC101

GND

2OUT 3

VCC

1VT

C133

CLK13M_MC

AFC

CLK13M_TR

CLK13M_RF

CLK13M_YMU

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SGH-S410i Flow Chart of Troubleshooting

2-3

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2-1-2. Initial

The voltage at the C415=1.8V?

The voltage at the C419=2.9V?

Initial Failure

ThevoltageattheZD405

" Low --> High" ?

There is 32.768KHz wave

form at the C216, C217 ?

The voltage on R412 is

"Low --> High" ?

The voltage is 2.9V

at the C416,C418,C419 ?

LCD Display OK ?

Sound operation OK ?

END

Check the OSC201

Check the U401

Check the LCD part

Check the Audio part

YES

Check the U401

(If it has some problem,

it has to be replaced.)

Check the U401

(If it has some problem,

it has to be replaced.)

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SGH-S410i Flow Chart of Troubleshooting

2-4

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R408

A10

VREF

H10

RTC_ALMN

CREF E9

D15

ADC_AUX2

E10

ADC_AUX1

C426

VBAT

ZD405

R407

RST

INTRQ

PWR_KEEP

VIB_EN

OSC201

C217C216

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SGH-S410i Flow Chart of Troubleshooting

2-5

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2-1-3. Sim Part

The voltage is 2.8V

at the pin #1 of CN401? Check the U401

"Insert SIM" is displayed on the LCD

END

Check the SIM Card

YES

Is there any signal

pin #2,3,4 of CN401 ? Check the U401 & OSC201

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SGH-S410i Flow Chart of Troubleshooting

2-6

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2-1-4. Microphone Part

Micro-phone does not work

Is the assembled status of

Microphone O.K?

YES

Reassemble the microphone

Check the DC bias voltage on

Mic path.

The voltage of C437 is

about 2.2V±10%?

Solder the microphone again

or Replace C437,C438,R430,

R433,R458,R453,C430,C432,

R421,R422

Is microphone OK? NO Check U401

END

YES

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SGH-S410i Flow Chart of Troubleshooting

2-7

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R458

R453

C436

R424

C465

R428

C433

R430

R457

C435

C440

C474 1UF

MIC400

C439

1UFC473

VCCA_2.9V

R433

C434

C464

C432

C437

R421

R422

C430

C438

C466

HPOUT-R

HPOUT-L

EAR_R

EAR_L

MIC+

JACK_INT

MIC-

MICOUTN

MICINN

MICINP

MICOUTP

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