Samsung SGH-T108 Service Manual

SERVICE

DUAL BAND Mobile
Cellular Phone

SGH-T108

Manual

DUAL BAND MOBILE CELLULAR PHONE CONTENTS

1. Exploded Views and Parts List

2. PCB Diagrams

3. Electrical Parts List

4. Block Diagrams

5. Flow Chart of Troubleshooting and
Circuit Diagram

ELECTRONICS

Samsung Electronics Co.,Ltd.

Printed in Korea

03/2002. Rev 1.0

GH68-02700A

ELECTRONICS

1. Exploded Views and Parts List

1-1 Main
1-2 Main Parts List
1-3 Travel Adapter
1-4 Travel Adapter Parts List
1-5 Ciger Light Adapter
1-6 Ciger Light Adapter Parts List
1-7 Test Jig
1-8 Wearable EAR Microphone
1-9 Data Kit
1-10 Battery Charger
1-11 Downloading Cable
1-12 PCLink for GSM Ver1.0

2. PCB Diagrams

2-1 Main Top
2-2 Main Bottom

3. Electrical Parts List

3-1 Main Parts List Top
3-2 Main Parts List Bottom

4. Block Diagrams

4-1 Main Base Band
4-2 Main RF

4-2-1 RF Tx Part
4-2-2 RF Rx Part

5. Flow chart of Troubleshooting and Circuit Diagram

5-1 Power ON
5-2 Initial
5-3 Charging Part
5-4 Sim Part
5-5 Microphone Part
5-6 Speaker Part
5-7 Key Data Input
5-8 Receiver Part
5-9 Ring Indicator
5-10 Back Light (for Color Main LCD)
5-11 Back Light (for sub LCD & Key)
5-12 GSM Receiver
5-13 GSM Transmit
5-14 DCS Receiver
5-15 DCS Transmit

Exploded Views and Parts List 1-1

1. SGH-T108 Exploded Views and Parts List

1-1 Main

1

9

2

3

3-1

3-2

4

15

11-3

16

11-1

11-2

13

17

11

10

12

14

5

6

7

8

18

19

1-2 Exploded Views and Parts List

1-2 Main Parts List

1

2

3

3-1

3-2

4

5

6

7

8

9

10

11

11-1

11-2

11-3

12

13

14

15

16

17

18

19

DUAL WINDOW LCD

FOLDER UPPER

LCD

MOTOR

SPEAKER

FOLDER LOWER

SCREW

SCREW CAP(LEFT)

SCREW CAP(RIGHT)

WINDOW LCD

FRONT COVER

KEY PAD

MAIN PBA

FPCB ASS’Y

DOME SHEET

MIC

CONNECTOR COVER

VOLUME KEY

REAR COVER

ANTENNA

MOBILE CAP

SCREW

BATTERY

BATTERY

Description SEC CODE Remark

Location

No.

GH72-03659C

GH75-01772A

GH96-00964A

3101-001243

3001-001268

GH75-01773A

6001-001285

GH74-01466A

GH74-01467A

GH72-01239A

GH75-01776A

GH75-01775A

GH92-01273A

GH59-00366A

GH59-00365A

GH59-00336A

GH73-00741A

GH75-01205A

GH75-01777A

GH42-00164A

GH73-00950A

6001-000464

GH43-00467A

GH43-00468A

1-3Exploded Views and Parts List

SGH-T108 COLOR & CODE

MEC-FOLDER DUMY

MEC-FOLDER UPPER

MEC-FOLDER LOWER

MEC-FRONT COVER

MEC-REAR COVER

MPR-SCREW CAP LEFT

MPR-SCREW CAP LEFT

BATTERY-700M

BATTERY-900M

GH75-01774A

GH75-01772A

GH75-01773A

GH75-01776A

GH75-01777A

GH74-01466A

GH74-01467A

GH43-00467A

GH43-00468A

GH75-01774A

GH75-01772B

GH75-01773B

GH75-01776B

GH75-01777B

GH74-01466B

GH74-01467B

GH43-00467B

GH43-00468B

GH75-01774B

GH75-01772C

GH75-01773B

GH75-01776C

GH75-01777C

GH74-01466D

GH74-01467D

GH43-00467C

GH43-00468C

ITEM

COLOR

SILVER WHITE PEARL GOLD

GH75-01774A

GH75-01772D

GH75-01773D

GH75-01776D

GH75-01777D

GH74-01466G

GH74-01467G

GH43-00467D

GH43-00468D

METALIC BLUE

1-4 Travel Adapter Parts List

TYPE SEC CODE REMARK

A GH44-00171A CHINA

B GH44-00184A EUROPE

C GH44-00171C UNITED KINGDOM

D Gh44-00171E TAIWAN

1-3 Travel Adapter

AB

C

D

1-3 Exploded Views and Parts List

1-5 Ciger Light Adapter

1-6 Ciger Light Adapter Parts List

DESCRIPTION SEC CODE REMARK

Ciger Light Adapter Code GH44-00170A BLACK

1-5Exploded Views and Parts List

1-7 Test Jig

TEST JIG GH80-10508A

TEST JIG CABLE GH39-00079A

RF JIG CABLE GH39-00140A

1-5 Exploded Views and Parts List

DM CABLE GH39-00080A

1-7-1 Test Jig

1-7Exploded Views and Parts List

DC
POWER
SUPPLY

8922 or 8960

WIRELESS COMMVNCATIONS

TEST SET

RF JIG CABLE

232 CABLE

TEST JIG

TEST JIG CABLE

1-8 Wearable EAR Microphone

1-9 Data Kit

DATA KIT GH39-00078A

Wearable EAR Microphone GH59-00394A

1-7 Exploded Views and Parts List

1-10 Battery Charger

BATTERY CHARGER GH44-00279A

DOWNLOADING CABLE GH39-00143A

1-11 Downloading Cable

PCLINK FOR GSM VER1.0 GH46-00023A

1-12 PCLink for GSM Ver1.0

1-9Exploded Views and Parts List

2. PCB Diagrams

2-1 Main Top

C121

C123

C128

C216

C301

C304

C305

C306
C307

C308

C309

C310

C311

C312 C313

C314

C315

C316

C439

C440

C441

C442

C451

C461

C800

C801

C802

C803

C804

C805

C806

C807

C809

C810

C811

C816

C818

CLR

D800

D801

D802

D803

D804D805

D806

D807

DIGIT1

DIGIT10

DIGIT2

DIGIT3

DIGIT4

DIGIT5

DIGIT6

DIGIT7

DIGIT8

DIGIT9

DOWN

END

F200 F201

INT

LED801

LED802

LEFT

MIC

Q801

Q802

Q803Q804

R119

R122

R124

R211 R212

R304

R305

R306

R308

R310

R312

R313

R314

R319

R323

R801

R802

R803R804

R805

R806

R807

R808

R809

R810

R811

R812

R813

R814

R823

RIGHT

RS232CTS

RS232RTS

RS232RXD

RS232TXD

SEND

SOFT1

SOFT2

SW801

SYMBOL#SYMBOL*

S_KEY

U107

U201

U301

U303

U801

UP

V400

V402

V403

V404

ZD202

ZD203

ZD400

ZD401

ZD402

PCB Diagrams 2-1

2-2 Main Bottom

ANT1

BAT101

BOOT

C100

C101

C102

C103

C104

C105

C106

C107

C108

C109

C110

C111

C112

C113

C114

C115

C118

C119

C120

C122

C125

C126

C129

C130

C131

C132

C201

C202

C203

C204

C205

C206

C207

C208

C209

C210

C211

C212

C213

C214

C215

C217

C218

C230

C300

C302

C303

C317

C318

C319

C320

C403

C404

C405

C406

C407

C408

C409

C410

C412

C413

C414

C415
C416

C417

C418

C419

C420

C421

C422

C423

C424

C425

C426

C427

C428
C429

C430

C431

C432

C433

C434

C435

C436

C437

C438

C443

C444

C445

C446

C447 C448

C449

C450

C452

C453

C454

C457

C462

C463

C500

C501

C502

C503

C504

C505

C506

C507

C508

C509

C510

C511

C512

C513

C514

C515

C516

C517

C518

C520

C521

C600

C601
C602

C603

C604

C605

C606

C607

C608

C609

C610

C611

C612

C613

C614
C615

C616

C617

C618

C619

C621

C622

C623

C624

C625

C626

C628

C629

C630

C631

C633

C634

C635

C636

C637

C638

C639

C640

C641

C642

C643

C644

C645

C646

C647

C648

C649

C650

C700

C701

C705

C706

C707

C708

C709

C710 C711

C712

C714

C715

C716

C717

C718

C719

C720

C721

C739

C808

C812

C814

C815

C817

CN101

CN201

CN202

CN401

CTS

D100

D101

E_SW

F601

F602

F604

F605

F607

F608

GND

J
AC

K_
IN

J_TCK J_TDI J_TDOJ_TMS

L209

L600

L601

L602

L603

L604

L605

L606

L607

L608L610

L611

L612

L700

L702

L703

L704

L705

L706 L707

L720

L721

L722

MRST

Q101

Q500

Q501

Q502

Q503

Q700

R103

R106

R107

R109

R111

R112

R113

R114

R115

R116R117

R120

R123

R200 R201

R202

R208

R209

R230

R231

R232

R233

R234

R235

R236

R237

R238

R240

R300

R301

R302

R315

R317

R320

R321

R322

R324

R400

R401

R402

R403

R404

R405

R406

R407

R408

R409

R410

R411

R413

R414

R416
R417

R421

R423

R424

R425

R426

R427

R428

R429

R430

R431

R432R433

R434

R435

R436

R437

R438

R439

R440

R441

R442

R443 R445

R446

R447

R448

R450

R500 R501

R502

R503

R504

R505

R506

R507

R508

R511

R513

R600

R601

R602

R603

R604

R605

R606

R607

R608
R609

R700

R701

R702

R703

R704

R705

R706

R707

R708

R709

R710

R711

R712

R713

R714

R715

R716

R717

R718

R719

R720

R721

R722

R821

R822

R824

R825

R826

R827

RD

RSTRTS RXDSCL SDA

TCK

TDI TDO

TH101

TMS

TXD

U101

U102

U103

U104

U105

U106

U202

U300

U302

U304

U305

U400

U401

U403

U421

U500

U501

U502

U601

U602

U700

U701

U702

U703U704 U705

U706

U707

U708

U802

U803

V1

V2

V205V206

V207

V208
V209

V3

V300

V4

V401

V405

VBATT

WR

X400

ZD801

ZD802

PCB Diagrams 2-2

3-1 Electrical Parts List

3. Electrical Parts List

3-1 Main Parts List Top

1 C121 2404-001105 “C-TA,CHIP;10UF/6.3V” TESVSPOJ475M8RTJ

2 C128 2404-001105 “C-TA,CHIP;10UF/6.3V” TESVSPOJ475M8RTJ

3 U107 1203-002127 IC;LTC1734ES6-4.2#TR LTC1734ES6-4.2#TR

4 R122 2007-007107 “R-CHIP;100K,1%” RK73H1ETP1003F

5 R119 2007-007590 “R-CHIP;82K,1%” MCR01MZSF8202

6 C123 2203-005061 “C-CERAMIC,CHIP;C104Z,100NF,16V” GRP155F51C104ZA01E

7 R124 2007-008117 “R-CHIP;2.7K,1%” RK73H1ETP2701F

8 F200 2901-001116 COMP-SMD;NFM39R12C471T1 NFM39R12C471T1

9 F201 2901-001116 COMP-SMD;NFM39R12C471T1 NFM39R12C471T1

10 “R211,R212” 2011-001344 R-CHIP;CRB2A4E101JT CRB2A4E101JT

11 ZD202 0406-001104 TR-SMALL SIGNAL;ESDA6V1-5W6 ESDA6V1-5W6

12 ZD203 0406-001083 TR-SMALL SIGNAL;ESDA6V1W5 ESDA6V1W5

13 “ZD400,ZD402” 1405-001082 IC;VC040205X150R VC040205X150R

14 R802 2007-007009 R-CHIP;75 ERJ2GEJ750X

15 R806 2007-007009 R-CHIP;75 ERJ2GEJ750X

16 “D804,D805,D800” 0601-001547 IC;SLS-NNBL102TS SLS-NNBL102TS

17 R805 2007-007009 R-CHIP;75 ERJ2GEJ750X

18 C803 2203-000679 “C-CERAMIC,CHIP;C270J,27PF,50V” GRP1555C1H270JZ01E

19 C801 2203-002443 “C-CERAMIC,CHIP;C331K,330PF,50V” GRP155R71H122KD01E

20 D803 0601-001547 IC;SLS-NNBL102TS SLS-NNBL102TS

21 “C805,C807” 2203-000679 “C-CERAMIC,CHIP;C270J,27PF,50V” GRP1555C1H270JZ01E

22 R801 2007-007009 R-CHIP;75 ERJ2GEJ750X

23 “C804,C809,C307,C311” 2203-000679 “C-CERAMIC,CHIP;C270J,27PF,50V” GRP1555C1H270JZ01E

24 R820 2007-007771 “R-CHIP;0,5%” ERJ2GEJ0R0E

25 “D802,D807,D801” 0601-001611 IC;SLS-NNWH102TS SLS-NNWH102TS

26 R804 2007-007009 R-CHIP;75 ERJ2GEJ750X

27 R808 2007-007009 R-CHIP;75 ERJ2GEJ750X

28 R803 2007-007009 R-CHIP;75 ERJ2GEJ750X

29 C806 2203-000679 “C-CERAMIC,CHIP;C270J,27PF,50V” GRP1555C1H270JZ01E

30 C216 2203-000138 “C-CERAMIC,CHIP;C152K,1.5NF,50V” GRP155R71H152KD01E

31 U201 0801-000794 IC;TC7S08FUTE85L TC7S08FUTE85L

32 R306 2007-000148 “R-CHIP;10K,5%” ERJ2GEJ103X

33 C301 2203-000254 “C-CERAMIC,CHIP;C103K,10NF,16V” GRP155R71C103KA01E

34 “C304,C314” NEW-ITEAM11 “C-CERAMIC,CHIP;4.7UF/6.3V”

35 R305 2007-007014 “R-CHIP;51K,5%” ERJ2GEJ513X

36 R308 2007-001325 “R-CHIP;3.3K,5%” ERJ2GEJ332X

37 C308 2203-000438 “C-CERAMIC,CHIP;C102K,1NF,50V” GRP155R71H102KA01E

38 C305 2203-005061 “C-CERAMIC,CHIP;C104Z,100NF,16V” GRP155F51C104ZA01E

39 U303 1204-001811 IC;YMU759-QE2 YMU759-QE2

NO Reference SER CODE Part Description Vendor Part No.

NO Reference SER CODE Part Description Vendor Part No.

40 V402 1405-001082 IC;VC040205X150R VC040205X150R

41 C310 2203-000679 “C-CERAMIC,CHIP;C270J,27PF,50V” GRP1555C1H270JZ01E

42 C306 2203-000870 “C-CERAMIC,CHIP;C030C,3PF,50V” GRP1555C1H3R0CZ01E

43 C315 2203-005061 “C-CERAMIC,CHIP;C104Z,100NF,16V” GRP155F51C104ZA01E

44 R310 2007-000831 “R-CHIP;39K,5%” RC1005J393CS

45 C312 2203-001405 “C-CERAMIC,CHIP;C223Z,22NF,25V” GRP155F51E223ZD01E

46 C309 2203-005061 “C-CERAMIC,CHIP;C104Z,100NF,16V” GRP155F51C104ZA01E

47 R313 2007-000775 “R-CHIP;33K,5%” ERJ2GEJ333X

48 C313 2203-000654 “C-CERAMIC,CHIP;C271K,270PF,50V” GRP155R71H271KD01E

49 “R312,R314” 2007-000775 “R-CHIP;33K,5%” ERJ2GEJ333X

50 C316 2203-000885 “C-CERAMIC,CHIP;C472K.4.7NF,25V” GRP155R71E472KA01E

51 “V403,V404” 1405-001082 IC;VC040205X150R VC040205X150R

52 C440 2203-000995 “C-CERAMIC,CHIP;C470J,47PF,50V” GRP1555C1H470JZ01E

53 ZD401 0406-001084 TR-SMALL SIGNAL;SMF05.TB SMF05.TB

54 C451 2203-000679 “C-CERAMIC,CHIP;C270J,27PF,50V” GRP1555C1H270JZ01E

55 C461 2203-005444 “C-CERAMIC,CHIP;C030B,3PF,50V” GRP1555C1H3R0BZ01E

56 C442 2203-000995 “C-CERAMIC,CHIP;C470J,47PF,50V” GRP1555C1H470JZ01E

57 V400 1405-001082 IC;VC040205X150R VC040205X150R

58 R807 2007-007009 R-CHIP;75 ERJ2GEJ750X

59 D806 0601-001611 IC;SLS-NNWH102TS SLS-NNWH102TS

60 C800 2203-005061 “C-CERAMIC,CHIP;C104Z,100NF,16V” GRP155F51C104ZA01E

61 R814 2007-000162 “R-CHIP;100K,5%” ERJ2GEJ563X

62 “C810,C802,C811” 2203-000679 “C-CERAMIC,CHIP;C270J,27PF,50V” GRP1555C1H270JZ01E

63 SW801 1009-001006 IC;A3210ELH A3210ELH

64 U801 0504-001058 TR-SMALL SIGNAL;BCR08PN BCR08PN

3-2Exploded Views and Parts List