Samsung E1225F Service Manual

GSM TELEPHONE

GT-E1225F(E1225T Common)

GSM TELEPHONE

CONTENTS

Safety Precautions

1. Specification

2. Product Function

3. Exploded View and Parts list

4. MAIN Electrical Parts List

5. Level1Repair

6. Level2Repair

7. Level3Repair

8.

Reference data

9.

Notice

All functionality, features, specifications and ther product information provided in this docu ment including, but not limited to, the benefit s, design, pricing, components, performance, availability, and capabiliti-es of the product are subject to change without notice or oblig ation. Samsung reserves the right to make changes to this document and the product described herein, at anytime, without obligation on Samsung to provide notification of such change.

o

Safety Precautions

1.

Repair Precaution

1-1.

Repair in Shield Box, during detailed tuning.

―

Take specially care of tuning or test, because the specification of cellular phone is sensitive for

surrounding interference(RF noise).

Be careful to useakind of magnetic object or tool, because performance of parts is damaged by

―

the influence of magnetic force.

Surely useastandard screwdriver when you disassemble this product, otherwise screw will be

―

worn away.

Useathicken twisted wire when you measure level.

―

thicken twisted wire has low resistance, therefore error of measurement is few.

A

Repair after separate Test Pack and Set because for short danger(for example an overcurrent

―

and furious flames of parts etc) when you repair board in condition of connecting Test Pack and

tuning on.

Take specially care of soldering, because Land of PCB is small and weak in heat.

―

Surely tune on/off while using AC power plug, becausearepair of battery charger is dangerous

―

when tuning ON/OFF PBA and Connector after disassembling charger.

Don't use as you pleases after change other material than replacement registered on SEC System.

―

Otherwise engineer in charge isn't charged with problem that you don't keep this rules.

1-1

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Safety Precautions

ESD(Electrostatically Sensitive Devices) Precaution

1-2.

Several semiconductor may be damaged easily by static electricity. Such parts are called by ESD

Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below.

(

You can prevent from ESD damage by static electricity.

Remove static electricity remained your body before you touch semiconductor or parts with

―

semiconductor. There are ways that you touch an earthed place or wear static electricity prevention

string on wrist.

Use earthed soldering steel when you connect or disconnect ESD.

―

Use soldering removing tool to break static electricity.Otherwise ESD will be damaged by static

―

electricity.

Don't unpack until you set up ESD on product. Because most of ESD are packed by box and

―

aluminum plate to have conductive power,they are prevented from static electricity.

You must maintain electric contact between ESD and place due to be set up until ESD is

―

connected completely to the proper place oracircuit board.

1-2

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Specification

2.

GSM General Specification

2-1.

EGSM 900 DCS1800

Freq. Band[MHz]

Uplink/Downlink

ARFCN range 0~124 & 975~1023 512~885

Tx/Rx spacing 45MHz 95MHz

Mod. Bit rate/

Bit Period

Time Slot Period/Frame

Period

Modulation 0.3GMSK 0.3GMSK

880~915 925~960

270.833kbps

3.692us

576.9us

4.615ms

1710~1785 1805~1880

270.833kbps

3.692us

576.9us

4.615ms

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

Power Class

Sensitivity -102dBm -100dBm

TDMA Mux 8 8

Cell Radius 35Km 2Km

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max

(

2-1

4

+33

dBm)

max

(

1

+30

dBm)

GSM TX power class

2-2.

Specification

TX Power

control level

533±2

631±2

729±2

827±2

925±2

10 23±2

11 21±2

12 19±2

GSM900

dBm

TX Power

control level

0 30±3

1 28±3

2 26±3

3 24±3

4 22±3

5 20±3

6 18±3

7 16±3

DCS1800

dBm

13 17±2

14 15±2

15 13±2

16 11±3

17 9±3

18 7±3

19 5±3

dBm

8 14±3

9 12±4

10 10±4

11 8±4

12 6±4

13 4±4

14 2±5

15 0±5

dBm

2-2

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Operation Instruction and Installation

3.

Main Function

Dual SIM socket

•

PNX4850

•

•1.77"

SMS

•

SOS Message, Whisper Mode, Fake Call

•

•40

FM Radio,

•

LED Torchlight

•

•3.5

TFT QVGA LCD

Polyphonic Melody

Earjack

Φ

(900/1800) - [

not dual standby]

3-1

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Exploded View and Parts List

4.

Cellular phone Exploded View

4-1.

4-1

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Exploded View and Parts List

Cellular phone Parts list

4-2.

Design LOC Discription SEC CODE

QSP01 SPEAKER

QAR01 AUDIO-RECEIVER

QCR89 SCREW-TAPPING

QMI01 MICROPHONE-ASSY-GT_E1225F GH30-00674A

QMO01 MOTOR DC-SCH-S369 GH31-00392A

QBA01 INNER BATTERY PACK-800MAH,BLK,UNI,MAIN GH43-03241A

QMP01 A/S ASSY-PBA MAIN(TURK) GT-E1225F GH82-05161A

QLC01 ASSY LCD-1.77 QQVGA SCH-B559 ASSY GH96-04327A

QFR01 ASSY CASE-FRONT GH98-16860A

QBC00 ASSY COVER-BATTERY GH98-16862A

QKP01 ASSY KEYPAD-MAIN GH98-16863A

QRE01 ASSY CASE-REAR GH98-16861A

QIF01 PMO COVER-IF V2 GH72-60638A

3001-002543

3009-001491

6002-001428

4-2

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MAIN Electrical Parts List

5.

SEC CODE Design LOC Description

0403-001688

0406-001231 ZD100

0406-001231 ZD302

0406-001231

0406-001231 ZD401

0406-001231 ZD402

0406-001231

0406-001267

0406-001286

0406-001361

0407-001002

0505-002664

0601-002846

0601-002941

1001-001610

1001-001635

1001-001664

1003-001440

1108-000217

1201-002933

1201-002944

1202-001068

1203-005512

1203-005686

1204-003155

1205-003923

1404-001221

2007-000138

ZD200 DIODE-ZENER

DIODE-TVS

ZD400 DIODE-TVS

DIODE-TVS

ZD403 DIODE-TVS

ZD404 DIODE-TVS

ZD405 DIODE-TVS

ZD300 DIODE-TVS

ZD303 DIODE-TVS

ZD406 DIODE-TVS

ZD301 DIODE-TVS

D200 DIODE-ARRAY

TR200 FET

LED300 LED

LED30

UME200 MEMORY

PAM100 PAM

UCP200 IC

1

2

3

4

U101 IC

U400 IC

U200 IC

TR100 IC

U100 IC

U401 IC

U300 IC

U103 IC

U104 IC

TH200 THERMISTOR

R103 R-CHIP

R213 R-CHIP

R400 R-CHIP

LED

5-1

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Main Electrical Parts List

SEC CODE Design LOC Description

2007-000138

2007-000139

2007-000140

2007-000141

2007-000143

2007-000148

2007-000151

2007-000162

2007-000163

2007-000164

2007-000170

2007-000172

2007-000173

2007-001119

2007-001288

2007-001298

2007-001311

2007-001333

R404 R-CHIP

R301 R-CHIP

R102 R-CHIP

R310 R-CHIP

R311 R-CHIP

R312 R-CHIP

R313 R-CHIP

R300 R-CHIP

R305 R-CHIP

R401 R-CHIP

R402 R-CHIP

R100 R-CHIP

R107 R-CHIP

R108 R-CHIP

R200 R-CHIP

R201 R-CHIP

R117 R-CHIP

R209 R-CHIP

R212 R-CHIP

R110 R-CHIP

R407 R-CHIP

R408 R-CHIP

R403 R-CHIP

R302 R-CHIP

R306 R-CHIP

R307 R-CHIP

R314 R-CHIP

R308 R-CHIP

R309 R-CHIP

R106 R-CHIP

R112 R-CHIP

R303 R-CHIP

R304 R-CHIP

R101 R-CHIP

R104 R-CHIP

R105 R-CHIP

5-2

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Main Electrical Parts List

SEC CODE Design LOC Description

2007-002970

2007-003025

2007-007008

2007-007698

2007-010071

2203-000359

2203-000386

2203-000425

2203-000679

2203-000725

2203-000812

2203-000940

2203-000995

2203-001072

2203-001153

2203-002443

2203-002525

R111 R-CHIP

R109 R-CHIP

R113 R-CHIP

R114 R-CHIP

R204 R-CHIP

R203 R-CHIP

C317 C-CERAMIC

C400 C-CERAMIC

C403 C-CERAMIC

C408 C-CERAMIC

C224 C-CERAMIC

C229 C-CERAMIC

C302 C-CERAMIC

C316 C-CERAMIC

C120 C-CERAMIC

C122 C-CERAMIC

C126 C-CERAMIC

C127 C-CERAMIC

C227 C-CERAMIC

C406 C-CERAMIC

C407 C-CERAMIC

C412 C-CERAMIC

C413 C-CERAMIC

C114 C-CERAMIC

C129 C-CERAMIC

C404 C-CERAMIC

C219 C-CERAMIC

C105 C-CERAMIC

C106 C-CERAMIC

C109 C-CERAMIC

C309 C-CERAMIC

C310 C-CERAMIC

C311 C-CERAMIC

C415 C-CERAMIC

C411 C-CERAMIC

C417 C-CERAMIC

5-3

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Main Electrical Parts List

SEC CODE Design LOC Description

2203-002677

2203-002709

2203-005053

2203-005057

2203-005234

2203-005281

2203-005344

2203-005481

2203-006048

2203-006137

2203-006208

2203-006399

C131 C-CERAMIC

C112 C-CERAMIC

C213 C-CERAMIC

C214 C-CERAMIC

C113 C-CERAMIC

C132 C-CERAMIC

C130 C-CERAMIC

C117 C-CERAMIC

C121 C-CERAMIC

C123 C-CERAMIC

C124 C-CERAMIC

C223 C-CERAMIC

C101 C-CERAMIC

C104 C-CERAMIC

C118 C-CERAMIC

C203 C-CERAMIC

C204 C-CERAMIC

C205 C-CERAMIC

C228 C-CERAMIC

C230 C-CERAMIC

C234 C-CERAMIC

C301 C-CERAMIC

C303 C-CERAMIC

C402 C-CERAMIC

C405 C-CERAMIC

C418 C-CERAMIC

C419 C-CERAMIC

C111 C-CERAMIC

C207 C-CERAMIC

C208 C-CERAMIC

C202 C-CERAMIC

C206 C-CERAMIC

C209 C-CERAMIC

C210 C-CERAMIC

C211 C-CERAMIC

C212 C-CERAMIC

5-4

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Main Electrical Parts List

SEC CODE Design LOC Description

2203-006399

2203-006562

2203-006626

2203-006824

2203-007240

2203-007279

2203-007425

2703-000213

2703-002170

2703-002200

2703-002204

2703-002208

2703-002313

2703-002367

2703-003064

2703-003184

2703-003476

2801-003856

2801-004805

2904-001879

3301-001158

3301-001729

C233 C-CERAMIC

C307 C-CERAMIC

C308 C-CERAMIC

C125 C-CERAMIC

C231 C-CERAMIC

C312 C-CERAMIC

C313 C-CERAMIC

C410 C-CERAMIC

C102 C-CERAMIC

C103 C-CERAMIC

C200 C-CERAMIC

C201 C-CERAMIC

C226 C-CERAMIC

TA400 C-CERAMIC

C119 C-CERAMIC

TA300 C-CERAMIC

C222 C-CERAMIC

L101 INDUCTOR

L111 INDUCTOR

L406 INDUCTOR

L407 INDUCTOR

L112 INDUCTOR

L109 INDUCTOR

L110 INDUCTOR

L402 INDUCTOR

L404 INDUCTOR

L106 INDUCTOR

L103 INDUCTOR

L201 INDUCTOR

L300 INDUCTOR

L411 INDUCTOR

OSC201 CRYSTAL

OSC200 CRYSTAL

F100 FILTER

L200 BEAD

L400 BEAD

5-5

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Main Electrical Parts List

SEC CODE Design LOC Description

3301-001729

3301-001885

3301-001970

3404-001152

3705-001731

3709-001488

3710-002683

3711-007437

3722-003101

GH70-03951A SC10

L401 BEAD

L403 BEAD

L405 BEAD

L301 BEAD

L30

2

3

4

BEAD

L305 BEAD

L408 BEAD

L409 BEAD

L410 BEAD

L102 BEAD

TAC300 SWITCH-TACT

RFS100 CONNECTOR-COAXIAL

SIM200 CONNECTOR-CARD

SIM2

01

CONNECTOR-CARD

IFC300 SOCKET-INTERFACE

BTC200 HEADER-BATTERY

EAR400 JACK-EARPHONE

0

1

2

4

5

6

7

9

SHIELD CAN CLIP

Please consult the GSPN website (Samsung Portal) for the most recent version of the product's part list.

5-6

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Level

6.

S/W Download

6-1.

Repair

1

6-1-1.

-

Pre-requsite for S/W Downloading

Diagram of connection

6-2-2.

How to download S/W

Download the drivers from anysvc, and then install the drivers. If your pc already has the

1) drivers, you can skip this step.

SAMSUNG Mobile USB DRIVER(4.40.7.0) v1.6.zip

-

msxml.msi

-

SSDN_V1.1.808.7165_SETUP_whql.exe

-

Download the files from anysvc.

2)

The latest s/w download program of GT-

-

The latest s/w binary files of GT-E1225F

-

Unpack.zip file in their folder.(To save binary file in each folder is recommended.)

3)

Run the s/w download program(execution file).

4)

LesediFM_MEA_Downloader

-

1225F

E

6-1

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Level1Repair

Setting the download program

5)

Select the connected serial port and the rate of speed

①

Click theboxes of file info section.

Select correct binary file

-

Select Mode

②

AutoDownloader"

-"

.

:

s.

Check the box If you don't have to do NOR, TFS Operation. You can download without click'DOWNLOAD' button

Power-ON after download"

-"

Check the box If you want to turn on the phone automatically after download.

BIN: Binary download Only

-

TFS: TFS download Only BIN+TFS: Both download

Select the correct binary and TFS file

③

①

.

②

③

②

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②

Click the'START' button and connect Phone with PC

6)

Connect Phone though IF Cable.

①

Port will be readied and'Download' will be activated.

②

Click the'Download', and then download is progressed automatically.

7)

If the download is completed rightly, it shows the content,'Download complete!'.

8)

Level1Repair

Caution. Never disconnect during the S/W downloading.

※

6-3

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Level

7.

Disassembly and Assembly Instructions

7-1.

Repair

2

7-1-1.

1)

2) Torque : 1.1 ~ 1.3 Kgf·cm

Disassembly

Unscrew2points at the REAR case

Be careful not to make scratch and molding damage!

DIsassemble the REAR as below sequence

Be careful not to make scratch and molding damage!

1)

Be careful not to damage IF COVER

2)

Be careful not to make scratch and molding damage!

1)

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Be careful not to make scratch and molding damage!

1)

7-1

Level2Repair

Disassemble the SHIELD CAN

Separate the KEYPAD from the FRONT

1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage!

Separate the SPEAKER from the REAR.

1) Be careful not to make scratch and molding damage!

2) Be careful speaker contact pin damage!

Separate the MOTOR from the REAR.

1) Be careful not to make scratch and molding damage!

2) Be careful motor contact pin damage!

7-2

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Level2Repair

7-1-2

1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage!

Assembly

Assemble the SHIELD CAN

INSERT KEYPAD to FRONT.

INSERT SPEAKER, MOTOR to REAR.

1) Be careful not to make scratch and molding damage!

2) When insert MOTOR, use PUSHING JIG.

3) CHECK SPEAKER, MOTOR insert tightly.

INSERT PBA TO FRONT. INSERT MIC TO FRONT.

1) Be careful not to make scratch and molding damage!

2) Be careful nothing goes between LCD and FRONT.

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