Samsung E1252 Service Manual

GSM TELEPHONE

GT-E1252

GSM TELEPHONE

CONTENTS

Safety Precautions

1.

Specification

2.

Product Function

3.

Exploded View and Parts list

4.

MAIN Electrical Parts List

5.

Level1Repair

6.

Disassembly and Assembly

7.
Instructions

Chart of Troubleshooting

8.

Reference data

9.

Notice
All functionality, features, specifications and other
product information provided in this document inclu
ding, but not limited to, the benefits, design, pricing,
components, performance, availability, and capabiliti

es of the product are subject to change without

-

notice or obligation. 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.

:

Safety Precautions

1.

Repair Precaution

1-1.

Repair in Shield Box, during detailed tuning. Take specially care of tuning or test, because

―

specipicty 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.

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Specification

2.

2-1.

GSM General Specification

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

EGSM 900 DCS1800

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

max

(

4

+33

dBm)

max

(

1

+30

dBm)

2-1

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Specification

2-2.

GSM Tx Power Class

TX Power

control level

5 32.5±2

631±2

729±2

827±2

925±2

10 23±2

11 21±2

GSM900

dBm

dBm

dBm

dBm

dBm

dBm

dBm

TX Power

DCS1800

control level

0 29.5±3

128±3

226±3

324±3

422±3

520±3

618±3

dBm

dBm

dBm

dBm

dBm

dBm

dBm

12 19±2

13 17±2

14 15±2

15 13±2

16 11±3

17 9±3

18 7±3

19 5±3

dBm

dBm

dBm

dBm

dBm

dBm

dBm

dBm

716±3

814±3

912±4

10 10±4

11 8±4

12 6±4

13 4±4

14 2±5

15 0±5

dBm

dBm

dBm

dBm

dBm

dBm

dBm

dBm

dBm

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Operation Instruction and Installation

3.

Main Function

GSM

•

•2.0"

•40

Battery

•

GSM Dual Band

•

Band

•
BB:PNX

•
Dual SIM Function

•

Mobile Prayer

•

SOS Message

•

India calendar

•

Call time limit

•

900/1800

QQVGA

Poly Ringtones

1000

:900/1800

65K

mAh

4852 (

TFT(WINTEK)

STE)

3-1

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Exploded View and Parts List

4.

Cellular phone Exploded View

4-1.

QMW02

QFR01

QKP01

QAR01

QLC01

QSP01

QRE01

QSR89

QME01

QMP01

QMI01

QMO01

QCK02

QIF01

QCK01

QBC00

QBA01

4-1

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Exploded View and Parts List

Cellular phone Parts list

4-2.

Design LOC Description SEC CODE

QSP01 SPEAKER

QAR01 AUDIO-RECEIVER

QCR89 SCREW-TAPPING

3001-002543

3009-001511

6002-001428

QMI01 MICROPHONE-ASSY-GT_E1252 GH30-00693A

QMO01 MOTOR DC-SCH-S369 GH31-00392A

QBA01 INNER BATTERY PACK-1000MAH,BLK,ENG,EU GH43-03184A

QME01 DOME SHEET-GT-E1252 GH59-09891A

QMW02 PCT WINDOW-GTE1252 GH72-60726A

QMP01 A/S ASSY-PBA MAIN(INU) GH82-05146A

QLC01 ASSY LCD-2.01" QQVGA GT_E1252 GH96-04903A

QFR01 ASSY CASE-FRONT GH98-17627A

QBC00 ASSY COVER-BATT GH98-17629A

QKP01 ASSY KEYPAD-GTE1252(INDA) GH98-17632A

QRE01 ASSY CASE-REAR GH98-17633A

QIF01 ASSY COVER-IF GH98-17628A

QCK02 ASSY KEY-TORCH GH98-17630A

QCK01 ASSY KEY-SIM SW GH98-17631A

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MAIN Electrical Parts List

5.

Design LOC SEC CODE Description

ZD200

ZD304

ZD300,ZD301,ZD302

ZD308,ZD309

ZD303

ZD305,ZD306

ZD307

D200

U201

LED301,LED302,LED303

LED304

LED300

U302

TR100

U200

UME200

0403-001688

0406-001223

0406-001254

0406-001254

0406-001286

0406-001288

0406-001361

0407-001002

0505-002664

0601-002846 19-217

0601-002846 19-217

0601-002890 99-216

1001-001635

1003-001440

1003-002367

1108-000370

USFZ5.6V-RTK/H

PG05DBTFC

UCLAMP0501P

UCLAMP0501P

PESD5V0L5UV

PESD5V0S1UL

PESD5V0U5BV

DAN222TL

TPCF8304

FSA2259UMX

MDC3105LT1

ET4555Y

K5N5629ATB-BQ12

UTD/S759/TR8

UTD/S759/TR8

UMC/3842S3K/TR8

PAM100

U301

U102

U103

UCP200

TH200

R311

R301

R300,R305,R312,R313

C137,C138

R102

R200,R201,R323

R123,R318

R238,R241,R242,R302

R306,R307,R310

R308,R309

1201-002931

1203-005512

1203-006272

1204-003208

1205-003945

1404-001221

2007-000138

2007-000139

2007-000141

2007-000143

2007-000147

2007-000148

2007-000157

2007-000172

2007-000172

2007-000173

RF7168

MIC5365-3.3YMT

AHK3293A

AR1210

PNX4852

NCP15WB473J04RC

RC1005J101CS

RC1005J221CS

RC1005J222CS

RC1005J472CS

RC1005J822CS

RC1005J103CS

RC1005J473CS

RC1005J100CS

RC1005J100CS

RC1005J220CS

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Main Electrical Parts List

Design LOC SEC CODE Description

R317

R316

R314,R315

R104

R235,R236,R237,R239

R240,R303,R304

R209

R120,R121,R211

R103

R122

R105,R106

R205

R203

C215,C313,C319,C322

C224,C228

C106,C231

2007-000932

2007-001119

2007-001156

2007-001288

2007-001298

2007-001298

2007-001301

2007-001333

2007-002970

2007-003025

2007-007008

2007-007698

2007-010071

2203-000386

2203-000425

2203-000438

RC1005J471CS

RC1005J681CS

RC1005J751CS

MCR01MZP5J180

RC1005J510CS

RC1005J510CS

MCR01MZP5J680

MCR01MZP5J183

MCR01MZP5J560

RMC16S-6R8J-TP

RC1005J301CS

RK73H1ETP5101F

MCR10EZHFLR100

GRP1555C1H150J

GRP1555C1H180J

GRP155R71H102K

C308,C309,C310

C327

C302

C143

C111,C113,C121,C122

C225,C320,C321

C105,C234,C236

C324,C325

C200,C238,C240

C108,C112,C114,C119

C142

C223

C101,C109,C136,C203

C204,C205,C226,C235

C237,C244,C301,C303

C315,C317,C329

2203-000585

2203-000627

2203-000679

2203-000696

2203-000812

2203-000812

2203-000995

2203-001072

2203-002709

2203-005281

2203-005281

2203-005344

2203-006048

2203-006048

2203-006048

2203-006048

GRP155R71H221KD01E

GRM1555C1H220J

GRP1555C1H270J

GRP1555C1H2R0C

GRP1555C1H330J

GRP1555C1H330J

GRP1555C1H470J

GRP1555C1H560JD01E

C1005Y5V1C104ZT

GRP1555C1H1R5BZ01E

GRP1555C1H1R5BZ01E

GRM155R71E223KA61D

GRM155R71A104K

GRM155R71A104K

GRM155R71A104K

GRM155R71A104K

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Main Electrical Parts List

Design LOC SEC CODE Description

C207,C208

C102,C103

C110,C326

C201,C202,C206,C209

C210,C211,C212,C241

C245

C120,C230,C239,C243

C311,C312,C323

C213,C214,C227

C222

TA301

L107

L122

L108

L314,L315

L104,L307,L309

2203-006208

2203-006257

2203-006361

2203-006399

2203-006399

2203-006399

2203-006562

2203-006562

2203-006824

2203-007425

2404-001377

2703-002170

2703-002200

2703-002204

2703-002267

2703-002269

CM105X5R475M06AT

GRM155R60J474KE19E

GRM21BR61A106K

GRM155R60J105KE19D

GRM155R60J105KE19D

GRM155R60J105KE19D

CV05X5R105K10AH

CV05X5R105K10AH

CV105X5R475K10AT

CL10A225KA5LNNC

F980J226MMA

CIH05T6N8JNC

CIH05T18NJNC

CIH05T22NJNC

CIH05T4N7SNC

CIH05T56NJNC

L124

L201

L300

OSC201

OSC200

F100

L200

L202

L306,L308

L301,L302,L303,L304

L305

L123

TAC301,TAC302

RFS100

SIM201,SIM202

IFC300

2703-002880

2703-003184

2703-003476

2801-003856

2801-004769

2904-001879

3301-001158

3301-001534

3301-001729

3301-001885

3301-001885

3301-001970

3404-001152

3705-001731

LQG15HS2N0S02D

CIG22W4R7MNE

LQG15HSR27J02D

MC-146(32.768KHz,20ppm)

CXC6X260000GHVRP70

SFR942PY002

BLM18PG300SN1D

BLM15AG121SN1D

BLM15AG102SN1D

BLM15HD182SN1D

BLM15HD182SN1D

BLM15BA330SN1

LS10N2-T

KMS-560-002-BEF

3709-001488 5000-6

3710-002683

HY20-AB0310

P-1.5S

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Main Electrical Parts List

Design LOC SEC CODE Description

BTC200

3711-007534

BTS237-019-RP

SC100,SC101,SC102 GH70-03276A ONBOARD-CLIP-4

SC103,SC105,SC106 GH70-03276A ONBOARD-CLIP-4

SC107,SC108,SC109 GH70-03276A ONBOARD-CLIP-4

R244 GH80-03320A PB-SHORT-1005

R233 GH80-03321A PB-SHORT-0603

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

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Level

6.

Software Download

6-1.

1

Repair

6-1-1.

ǁ

ǁ
ǁ

ǁ
ǁ
ǁ

ǁ

-

Pre-requisite for Download

Downloader Program

GT-E1252 Mobile Phone
JIG BOX(GH99-36900A)

RF Test Cable(GH39-00985A)
JIG Cable(GH39-01313A)
Adapter(GH99-38251A)

Binary files

Diagram of Connection:

Mobile Phone(with Battery)

FDI_Downloader v0.6Lite For GT-E1252(Magnolia).exe)

(

Data Cable

PC

6-1

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Level1Repair

6-1-2.

S/W Download Process

Load the binary download program by executing the

1.
"

FDI_Downloader v0.6Lite For GT-E1252(Magnolia).exe

"

6-2

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Select the Port, Baud Rate and Mode

2.

Level1Repair

.

6-3

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Level1Repair

Select the binary,TFS, CSC fileswhat you want to download

3.

6-4

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ress the"Start" button and connect the Handset.

4. P
Press"End Key" of the phone forawhile
And then, you can see the sentence"NowyoucandoDOWNLOAD!"

Level1Repair

6-5

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Level1Repair

ress the"Download" butto

5. P

n.

Now download program will start binary downloading.

After download, Confirm the downloaded version name and etc.

6.

*#1234#

Full Reset

:

*2767*3855#

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:

7.

7-1.

Level

2

Disasembly

Repair

Unscrew4points at the REAR case.

1.

DIsassemble the REAR as below sequence.

2.

Disassemble the PBA. Be careful with hooks.

3.

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Separate the PBA from the FRONT.

4.

7-1

Level2Repair

7.

Disassemble the LCD Module.

5.

Be careful not to damage LCD FPCB and LCD

Disassemble the LCD FPCB.

6.

Be careful not to damage LCD FPCB and LCD

Disassemble the Reciver.

7.
Be careful not to damage LCD FPCB and LCD

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Disassemble the SHIELD CAN.

8.

7-2