Samsung SGH-A800 service manual -...

ELECTRONICS

SERVICE

DUAL BAND MobileCellular Phone SGH-A800

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 andCircuit Diagram

Samsung Electronics Co.,Ltd. Printed in Korea11/2002 Rev 1.0

GH68-03108A

ELECTRONICS

Exploded Views and Parts List 1-1

1. Exploded Views and Parts List1-1 Main1-2 Main Parts List1-3 Travel Adapter1-4 Travel Adapter Parts List1-5 Ciger Light Adapter1-6 Ciger Light Adapter Parts List1-7 Test Jig1-8 Wearable EAR Microphone1-9 Data Kit1-10 Battery Charger

2. PCB Diagrams2-1 Main Top2-2 Main Bottom

3. Electrical Parts List3-1 Main Parts List Top3-2 Main Parts List Bottom

4. Block Diagrams4-1 Main Base Band4-2 Main RF

4-2-1 RF Transmit Part4-2-2 RF Receive Part

5. Flow chart of Troubleshooting and Circuit Diagram5-1 Power ON5-2 Initial5-3 Charging Part5-4 Sim Part5-5 Microphone Part5-6 Speaker Part5-7 Key Data Input5-8 Receiver Part5-9 Ring Indicator5-10 Back Light (for Main & Sub LCD)5-11 Back Light (for Key)5-12 GSM Receiver5-13 GSM Transmit5-14 DCS Receiver5-15 DCS Transmit

1-2 Exploded Views and Parts List

1. Exploded Views and Parts List

1-1 Main

1

2

3

4

5

6

7

8

11

13

14

16

9

10

19

2123

15

18

22

17

20 24

12


1-2 Main Parts List

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

DUAL WINDOW LCD

FOLDER DUMMY

FOLDER UPPER

LCD

MOTOR

SPEAKER

FOLDER LOWER

WINDOW LCD

SCREW

SCREW SHEET

FRONT COVER

KEYPAD

VOLKEY F-PCB

MAIN PBA

DOME SHEET

MIC

CONNECTOR COVER

RF COVER

ANTENNA

REAR COVER

SCREW CAP

VOLUME KEY

SCREW

BATTERY

Description SEC CODE RemarkLocation

No.

GH72-04824A

GH75-02119A

GH75-02117A

GH07-00181A

3101-001328

3001-001319

GH75-02118A

GH72-04823A

6001-001285

GH74-02895A

GH75-02116A

GH75-02136A

GH59-00474A

GH92-01334A

GH59-00475A

GH59-00476A

GH73-01282A

GH73-01281A

GH42-00201A

GH75-02121A

GH73-01283A

GH75-02120A

6001-000464

GH43-00667A


SGH-A800 COLOR & CODE

FOLDER UPPER

FOLDER LOWER

FRONT COVER

REAR COVER

FOLDER DUMMY

GH75-02117A

GH75-02118A

GH75-02116A

GH75-02121A

GH75-02119A

GH75-02117B

GH75-02118B

GH75-02116B

GH75-02121B

GH75-02119B

GH75-02117C

GH75-02118C

GH75-02116C

GH75-02121C

GH75-02119C

ITEM

COLORSILVER Dark Silver Dark Blue

GH75-02117D

GH75-02118D

GH75-02116D

GH75-02121D

GH75-02119D

Royal Blue

FOLDER UPPER

FOLDER LOWER

FRONT COVER

REAR COVER

FOLDER DUMMY

GH72-04819A

GH72-04822A

GH72-04825A

GH72-04827A

GH72-04821A

GH72-04819B

GH72-04822B

GH72-04825B

GH72-04827B

GH72-04821B

GH72-04819C

GH72-04822C

GH72-04825C

GH72-04827C

GH72-04821C

ITEM


GH72-04819D

GH72-04822D

GH72-04825D

GH72-04827D

GH72-04821D

Royal Blue

MAIN LOCKER

EARPHONE COVER

DAMPER(L)

MIC HOLDER

SCREW CAP SHEET

GH72-04828A

GH72-05132A

GH73-01276A

GH73-01277A

GH74-02895A

GH72-04828B

GH72-05132B

GH73-01276B

GH73-01277B

GH74-02895B

GH72-04828C

GH72-05132C

GH73-01276C

GH73-01277C

GH74-02895C

ITEM


GH72-04828D

GH72-05132D

GH73-01276D

GH73-01277D

GH74-02895D

Royal Blue

SCREW CAP

MOBILE CAP

I/F CONN COVER

SHEET REAR

GH73-01283A

GH73-01281A

GH73-01282A

GH74-03415A

GH73-01283B

GH73-01281B

GH73-01282B

GH74-03415B

GH73-01283C

GH73-01281C

GH73-01282C

GH74-03415C

ITEM


GH73-01283D

GH73-01281D

GH73-01282D

GH74-03415D

Royal Blue


1-4 Travel Adapter Parts List

TYPE SEC CODE REMARKA GH44-00171A CHINA

B GH44-00184A EUROPE

C GH44-00171C UNITED KINGDOM

D Gh44-00171E TAIWAN

1-3 Travel Adapter

A B

C D


1-5 Ciger Light Adapter

1-6 Ciger Light Adapter Parts List

DESCRIPTION SEC CODE REMARKCiger Light Adapter Code GH44-00170A BLACK


1-7 Test Jig

TEST JIG GH80-10508A

TEST JIG CABLE GH39-00079A

RF JIG CABLE GH39-00174A


1-7 Test Jig

8922 or 8960WIRELESS COMMUNICATIONS

TEST SET

TEST JIG

DCPOWER SUPPLY

RF JIG CABLE

TEST JIG CABLE

232 CABLE


1-8 Wearable EAR Microphone

1-9 Data Kit

DATA KIT GH39-00078A

Wearable EAR Microphone GH59-00322A


1-10 Battery Charger

BATTERY CHARGER GH44-00279A

2. PCB Diagrams

2-1 Main Top

単旭

C102 C10

3

C112C11

3

C11

4

C132

C133

C200

C201

C202

C20

3

C234

C30

4C

305

C307

C308

C309C31

0

C31

1C

312

C31

3

C31

5

C40

0

C40

1C

402

C41

2

C41

3

C414

C41

5

C41

6

C417

C41

9

C420

C42

1

C42

2

C423

C42

4C42

5C

426C

428

C43

2

C437C441

C44

2

C44

3

CLR

CN201

DIGIT1

DIGIT10DIGIT2

DIGIT3

DIGIT4

DIGIT5

DIGIT6

DIGIT7

DIGIT8

DIGIT9

DOW

N

END

H10

1

INT L3

00

L400

L401

L402

LAM

P200

LAM

P201

LAM

P202

LAM

P203

LAM

P204

LAM

P205

LAM

P206

LAM

P207

LEFT

MIC

400

Q20

0

Q20

1

Q70

2

R200

R201

R203

R204

R207

R208

R20

9R

210

R211

R212

R213

R21

4

R21

5R21

6

R21

7

R304R305

R306

R30

7

R30

8

R30

9

R31

0

R413

R414

R416

R417

R42

2

R42

5R

426

R430

R60

5

R712 R713

RIGHT

SENDSOFT1

SOFT2SYMBOL#

SYMBOL*TH

200

TP41

0

TP41

1

TP41

2

TP41

3

TP41

5TP42

1

TP42

3

TP42

4

U100

U103

U20

0

U202

U20

3U3

01

UP

V201V202

V315

V400

V401

PCB Diagrams 2-1

2-2 Main Bottom

ANT700

C101

C104

C105

C106

C107

C108C109

C110

C111

C115

C116

C117

C118

C119

C130

C204

C205

C206

C207

C208

C209

C210

C211

C212

C213

C230C231

C232

C233

C235

C236

C237

C240

C300

C301

C302

C306

C316

C405

C406

C407C

408C

409C

410

C411

C418

C427

C429C430

C431

C433

C434C435 C436C438

C439C440

C490C491

C500

C501

C502C

503C

504

C505

C506

C507

C508

C509

C510

C511

C512

C513

C514

C600

C601

C602

C603

C604

C605

C606

C607

C608

C609

C610

C611

C612

C700

C701

C702

C703

C704

C705

C706

C707

C708C

709

C710

C711

C712

C713

C714C715

C716

C717

CN100

CN200

CN300

CO

N700

D100

D101

EAR400F600F601

H100

H102

H103

JP400JP401

JP402JP403

JT300JT301

JT302JT303

JT304JT305

JT306JT307

JT308JT309

JT6

L500

L501

L600L601

L700

L701

OSC400

Q100

Q301

Q400

Q700 Q701

R100

R101

R102

R103

R104

R105R106

R107R108

R109R110

R113

R219

R220

R221R222

R223

R224

R225

R226

R227

R228

R229R300

R301R302

R303R311

R312

R313

R400

R401

R402R

403

R404R405

R406

R407

R408

R409

R410

R411

R412

R415

R418

R419R420

R421

R423

R424

R427R428R429

R431 R432R435

R437R438

R439

R500

R501

R502R

503R

504R

505

R600

R601

R602

R603

R604

R606R607

R608

R609 R

610R

611

R700

R701

R702

R703

R704

R705

R706 R

707

R708

R709

R710

R711

R714

TP414

U101U104

U105

U106

U111U112

U201

U230

U300U302

U400

U401

U500

U501

U502

U503

U600

U601

U700

U701

U702

U703

U704

V203

V300

V301V302

V303

V304V305

V306

V307

V308

V309

V310

V403

V404

V405

ZD1

PCB Diagrams 2-2

Electrical Parts List 3-1

3. Electrical Parts List3-1 Main Parts List Top

1 C234 2203-000679 “C-CERAMIC,CHIP” “0.027nF,5%,50V,NP0,TP,1005” GRP1555C1H270JZ01E

2 R414 2007-000162 R-CHIP “100Kohm,5%,1/16W,DA,TP,1005” RC1005J104CS

3 C312 2404-001086 “C-TA,CHIP” “4.7uF,20%,6.3V,GP,TP,2012,-” TESVSPOJ475M8RTJ

4 C313 2203-005061 “C-CERAMIC,CHIP” “100nF,+80-20%,16V,Y5V,TP,1005” MCH153F104ZK

5 C311 2203-000233 “C-CERAMIC,CHIP” “0.1nF,5%,50V,NP0,TP,1005” CM05CG101J50AT

6 C437 2203-005444 “C-CERAMIC,CHIP” “0.003nF,0.1pF,50V,NP0,TP,1005” GRP1555C1H3R0BZ01E

7 R309 2007-000161 R-CHIP “82Kohm,5%,1/16W,DA,TP,1005” ERJ2GEJ823X

8 R307 2007-007771 R-CHIP “0OHM,5%,1/16W,DA,TP,1005” ERJ2GEJ0R0E

9 R310 2007-007090 R-CHIP “11KOHM,5%,1/16W,DA,TP,1005” ERJ2GEJ113X



12 C310 2203-005483 “C-CERAMIC,CHIP” “68nF,10%,10V,X5R,TP,1005,-” GRP155R61A683KA01E



15 Q200 0501-002202 TR-SMALL SIGNAL “MMBT2222AWT1,NPN,150mW,SOT-323” MMBT2222AWT1

16 Q702 0504-001058 TR-DIGITAL “RN4985,NPN/PNP,200mW,2.2Kohm/ RN4985-TE85L

47Kohm,UMD6,TP”

17 U202 0504-001060 TR-DIGITAL “BCR08PN,NPN/PNP,250mW,2.2Kohm/ BCR08PN

47Kohm,SOT-363,TP”

18 LAMP200 0601-001547 LED “CHIP,BLUE,1.1X0.8MM,468NM” SLS-NNBL102TS








26 U200 0801-002540 IC-CMOS LOGIC “7SZ19,DECODER,SOP,6P,49MIL,SINGLE,TP, NC7SZ19P6X

PLASTIC,-,-,0.55V,-40to+85C,-,4.125V,1uA,-,”

27 Q201 1003-001440 IC-POWER DRIVER “MDC3105LT1,SOT-23,3P,49MIL,-,500MA,TP,” MDC3105LT1

PLASTIC,6V,-40TO+85C,225MA,-,-

28 U203 1009-001010 IC-HALL EFFECT S/W “A3212ELH-SAMSUNG,SC-59A,3P,82MIL,TP, A3212ELHLT-SAMSUNG

BICMOS,PLASTIC,3.5V,2MA,-40TO+85C,-,-,-,340K”

29 U103 1203-002076 IC-VOLTAGE “2985,SOT-23,5P,63MIL,PLASTIC,2.9/3.1V,-, LP2985AIM5X-3.0

REGULATOR -40to+125C,350mA,-,TP”

30 U100 1203-002077 IC-VOLTAGE “2985,SOT-23,5P,63MIL,PLASTIC,3.284/3.416V,-, LP2985AIM5X-3.3

REGULATOR -40to+125C,350mA,-,TP”

31 U301 1204-001811 IC-MELODY “YMU759-QE2,QFN,32P,-,PLASTIC,6V,-, YMU759-QE2

-20TO+85C,TP,-”

NO Refer SEC Part Description Vendor Part No.ence CODE



32 TH200 1404-001221 THERMISTOR-NTC “47Kohm,-,4050K,1mW/C,-,-,TP” NCP15WB473J04RC

33 V400 1405-001082 VARISTOR “5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R


35 V315 1405-001093 VARISTOR “14V,20A,1x0.5x0.6mm,TP” VC040214X300

36 V201 1405-001110 VARISTOR “18V,20A,1X0.5X0.6MM,TP” AVLC 14S 02 050



39 R217 2007-000143 R-CHIP “4.7Kohm,5%,1/16W,DA,TP,1005” ERJ2GEJ472X

















56 R207 2007-007009 R-CHIP “75OHM,5%,1/16W,DA,TP,1005” ERJ2GEJ750X










66 C103 2203-000254 “C-CERAMIC,CHIP” “10nF,10%,16V,X7R,TP,1005,-” CM05X7R103K16AT









3-3 Electrical Parts List



76 C308 2203-000438 “C-CERAMIC,CHIP” “1nF,10%,50V,X7R,TP,1005,-” CM05X7R102K50AH









85 C432 2203-003054 “C-CERAMIC,CHIP” “0.009nF,0.25pF,50V,NP0,TP,1005” C1005CG1H090CT

86 C425 2203-001017 “C-CERAMIC,CHIP” “0.004nF,0.25pF,50V,NP0,TP,1005” CM05CG040C50AT


88 C203 2203-002443 “C-CERAMIC,CHIP” “0.33nF,10%,50V,X7R,TP,1005” CL05B331KBNC

89 C423 2203-003054 “C-CERAMIC,CHIP” “0.009nF,0.25pF,50V,NP0,TP,1005” “C-CERAMIC,CHIP”






95 C132 2203-005065 “C-CERAMIC,CHIP” “1000nF,+80-20%,10V,Y5V,TP,1608” CL10F105ZPNC


97 C102 2404-001105 “C-TA,CHIP” “10UF,20%,6.3V,GP,TP,2012” TAJR106M006R


99 L300 2703-002206 INDUCTOR-SMD “39NH,5%,1.0X0.5X0.5MM” CIH05T39NJNC



102 C443 2203-003054 “C-CERAMIC,CHIP” “0.009nF,0.25pF,50V,NP0,TP,1005” “C-CERAMIC,CHIP”



3-2 Main Parts List Bottom


1 Q700 0504-001058 TR-DIGITAL “RN4985,NPN/PNP,200mW,2.2Kohm/47Kohm,UMD6,TP” RN4985-TE85L

2 Q701 0504-001058 TR-DIGITAL “RN4985,NPN/PNP,200mW,2.2Kohm/47Kohm,UMD6,TP” RN4985-TE85L

3 U201 0504-001060 TR-DIGITAL “BCR08PN,NPN/PNP,250mW,2.2Kohm/47Kohm,SOT-363,TP” BCR08PN

4 Q400 0505-001332 FET-SILICON “FDG6301,N,25V,0.22A,4OHM,.3W,SC70-6” FDG6301N

5 U101 0505-001423 FET-SILICON “FDG6323L,N/P,-,-,-,0.3W,SC70-6” FDG6323L

6 U105 0506-001004 TR-ARRAY “UMC5N,NPN/PNP,2,50V,-,-100mA,3” UMC5NTR

7 U401 1001-001145 IC-ANALOG SWITCH “MAX4599EXT,-,SC70,6P,49MIL,SINGLE,5.5V,- MAX4599EXT-T

40to+85C,PLASTIC,245mW,60ohm,25ns,30ns,0”

8 U230 1001-001183 IC-ANALOG SWITCH “MAX4684EUB,-,TSSOP,10P,114MIL,DUAL,3.3V,- MAX4684EUB

40TO+85CC,PLASTIC,444MW,0.8OHM,30NS,50N”

9 U300 1109-001218 IC-ETC. MEMORY “LRS1806,4MX16/1MX16BIT,BGA,72P,11X8MM,85NS,3V, LRS1806A

10%,PLASTIC,-25TO+85C,80UA,CMOS,TR”

10 U701 1201-001785 IC-POWER AMP “08122,-,8P,-,DUAL,34DB,-,7V,-,-25TO+100C,-,-,-,-,-” PF08122B-10-TB

11 U500 1203-001454 IC-VOLTAGE “2981,SOT-23,5P,59MIL,PLASTIC,3” LP2981AIM5X-3.0

REGULATOR 4.2#TR

12 U104 1203-002127 IC-BATTERY “1734,SOT-23,6P,150MIL,PLASTIC,4.7/5.3V,-, LTC1734ES6-

0to+70C,1A,-,TP”

13 U106 1203-002247 IC-VOL. DETECTOR “S-809,SOT-23-5,5P,-,-,-,150MW,-40TO+85C,50MA,-,TP” S-80926ALMP-

DAP-T2

14 U501 1203-002598 IC-VOLTAGE “2981,SOT-23,5P,2.92X1.6MM,PLASTIC,2.8V,-, LP2981AIM5X-2.8

REGULATOR -40TO+125C,100MA,-,TP”





17 U400 1205-002035 IC-COMM. “VP40581B,FBGA,180P,-,PLASTIC,3.3V,-,-40TO+85C, VP40581E3

CONTROLLER TR,ONEC PROCESSOR”

18 U600 1205-002248 IC-TRANSCEIVER “SI4200DB-BM,MLP,32P,5X5MM,-,3V,-,-20TO+85C, SI4200DB-BM

TP,DUALBAND TRANSCEIVER”

19 U601 1205-002185 IC-INTERFACE “SI4201-BM,MLP,20P,4X4MM,-,3V,-,-20TO+85C,TP, SI4201-BM

UNIVERSAL BASEBAND”

20 U702 1209-001379 “IC-ETC, LINEAR” “HD155173ANPEL,-,16P,-,-,3.4V,240MW,-25TO+85C,TP” HD155173ANPSEL

21 U503 1209-001434 IC-PLL/SYNTHESISER “SI4133T-BM,MLP,28P,5X5MM,-,3V,-,-20TO+85C,TP” SI4133T-BM


















37 R500 2007-000138 R-CHIP “100ohm,5%,1/16W,DA,TP,1005” ERJ2GEJ101X





















































88 R219 2007-003001 R-CHIP “12OHM,5%,1/16W,DA,TP,1005” TSR16GJ120V

89 R220 2007-003001 R-CHIP “12OHM,5%,1/16W,DA,TP,1005” TSR16GJ120V

90 R104 2007-007107 R-CHIP “100Kohm,1%,1/16W,DA,TP,1005” MCR01MZSF1003

91 R700 2007-007142 R-CHIP “10Kohm,1%,1/16W,DA,TP,1005” ERJ2RKF103X



94 R601 2007-007307 R-CHIP “150ohm,1%,1/16W,DA,TP,1005” RK73H1ETP1500F





99 R703 2007-007311 R-CHIP “22Kohm,1%,1/16W,DA,TP,1005” RK73H1ETP2202F

100 R401 2007-007317 R-CHIP “2.2Kohm,1%,1/16W,DA,TP,1005” MCR01MZSF2201

101 R400 2007-007317 R-CHIP “2.2Kohm,1%,1/16W,DA,TP,1005” MCR01MZSF2201














115 R102 2007-007590 R-CHIP “82Kohm,1%,1/16W,DA,TP,1005” RK73H1ETP8202F





118 R103 2007-008117 R-CHIP “2.7Kohm,1%,1/16W,DA,TP,1005” RK73H1ETP2701F




122 R439 2011-001345 R-NETWORK “10Kohm,5%,1/16W,L,CHIP,8P,TP” EXB28V103JX



















141 C712 2203-002668 “C-CERAMIC,CHIP” “0.0005nF,0.1pF,50V,NP0,TP,1005” C1005CG1H0R5BT

142 C716 2203-000628 “C-CERAMIC,CHIP” “0.022nF,5%,50V,NP0,TP,1005” GRP1555C1H220JZ01E

143 C708 2203-000654 “C-CERAMIC,CHIP” “270pF,10%,50V,X7R,TP,1005,-” CM05X7R271K50AH


























167 FC501 2203-000679 “C-CERAMIC,CHIP” “0.027nF,5%,50V,NP0,TP,1005” CM05CG270J50AT





172 C118 2203-000800 “C-CERAMIC,CHIP” “33nF,10%,25V,X7R,TP,1608” GRM188R71E333KA01D







179 C703 2203-000836 “C-CERAMIC,CHIP” “390pF,10%,50V,X7R,TP,1005,-” CM05X7R391K50AT







186 C510 2203-001405 “C-CERAMIC,CHIP” “22nF,+80-20%,25V,Y5V,TP,1005” 04023G223ZAT2A








194 C605 2203-005050 “C-CERAMIC,CHIP” “0.0018nF,0.25pF,50V,NP0,TP,1005” CM05CG1R8C50AT

195 C606 2203-005050 “C-CERAMIC,CHIP” “0.0018nF,0.25pF,50V,NP0,TP,1005” CM05CG1R8C50AT















208 C602 2203-005234 “C-CERAMIC,CHIP” “0.0012nF,0.25pF,50V,NP0,TP,1005” GRP1555C1H1R2CZ01E

209 C603 2203-005234 “C-CERAMIC,CHIP” “0.0012nF,0.25pF,50V,NP0,TP,1005” GRP1555C1H1R2CZ01E




213 C409 2203-005503 “C-CERAMIC,CHIP” “0.18nF,5%,25V,NP0,TP,1005” GRP1556C1E181JD01E

214 C410 2203-005503 “C-CERAMIC,CHIP” “0.18nF,5%,25V,NP0,TP,1005” GRP1556C1E181JD01E

215 C115 2404-001020 “C-TA,CHIP” “10uF,20%,10V,GP,TP,3216,3.2” TMCMA1A106MTR






221 C431 2404-001162 “C-TA,CHIP” “47uF,20%,4V,LZ,TP,3216” F950G476MAAJZTQ2

222 C101 2404-001239 “C-TA,CHIP” “100UF,20%,6.3V,WT,TP,3.3X2.7X1.7MM” F950J107MBAAQ2

223 C700 2404-001280 “C-TA,CHIP” “220UF,20%,6.3V,LZ,TP,7132” F750J227MUCGZT

224 L501 2703-001943 INDUCTOR-SMD “10nH,5%,1.0x0.5x0.5mm” HK1005-10NJ-T

225 L701 2703-001943 INDUCTOR-SMD “10nH,5%,1.0x0.5x0.5mm” HK1005-10NJ-T

226 L500 2703-002205 INDUCTOR-SMD “3.9NH,10%,1.0X0.5X0.5MM” CIH05T3N9KNC

227 L700 2703-002267 INDUCTOR-SMD “4.7NH,0.3NH,1.0X0.5X0.5MM” CIH05T4N7SNC

228 L600 2703-002484 INDUCTOR-SMD “7.5NH,5%,1.0X0.5X0.5MM” 0402CS-7N5XJBW

229 L601 2703-002485 INDUCTOR-SMD “27NH,5%,1.0X0.5X0.5MM” 0402CS-27NXJBW

230 OSC400 2801-004025 CRYSTAL-UNIT “0.032768MHz,20ppm,28-ABK, FC-255

1.7fF,65kohm,TP”

231 U502 2809-001260 OSCILLATOR-VCTCXO “13MHZ,3PPM,10KOHM//10PF,TP,3V,-” TCO-9141B(13MHZ)

232 F600 2904-001387 FILTER-SAW “1.8425GHZ,-,1.1DB,TP, B7716

1805-1880MHZ/3.0DB,-”

233 F601 2904-001417 FILTER-SAW “942.5MHZ,-,0.8DB,TP,925. B7820

0-960.0MHZ/1.9DB,-”

234 U704 2909-001146 FILTER-DUPLEXER “942.5MHZ,897.5MHZ,1.4/1.5DB,TP,-,-” LMG002S-5008C

235 CON700 3705-001242 CONNECTOR-COAXIAL “-,JACK,100MOHM,50OHM,-” CRS5001-1702

236 CN100 3709-001187 CONNECTOR-CARD “6P,2.54MM,SMD-A,-” CLE1006-0902G

EDGE

237 CN300 3710-001816 CONNECTOR-SOCKET “18P,1R,0.5MM,ANGLE,AU” 1004-0018-319

238 CN200 3711-004980 CONNECTOR-HEADER “NO,26P,2R,0.5MM,SMD-S,AU,NTR” AXK6F26335J

239 EAR400 3722-001715 JACK-PHONE “6P,2.3PI,AU,BLK,-” 02-828P0-53BKA

240 C106 4302-001119 BATTERY-LI(2ND) “3V,0.1MAH,-,-,3.1V,-” ML414R-TT30

241 U703 4709-001213 COUPLER-DIRECTION “1710-1785MHz,14+-1dB,12dB, DCS214E-1747



2.0X1.25X0.7mm,TP”

242 U700 4709-001214 COUPLER-DIRECTION “880-915MHz,19.5+-1dB, DCS214E-0897

13dB,2.0X1.25X0.7mm,TP”

243 ANT700 GH61-00026A SPRING ETC-ANT. “SGH-N620,BE-CU,-,-,-,-,-,-,GLD,-,-”

CONTACT

244 GH73-01322A RMO-RUBBER ANT “SPH-X7700,CR RUBBER,

CONTACT 3X4XT1.0,-,-,BLK,-,-,-,-”

4-1 Block Diagrams

4. Block Diagrams

4-1 Main Base Band

Block Diagrams 4-2

4-2 Main RF

4-3 Block Diagrams

4-2-1 RF Transmit Part

VC

TC

XO

(U50

2)

EG

SM

TX

880

~ 91

5 M

Hz

(CH

62 :

902.

4 M

Hz)

DC

S T

X17

10 ~

178

5 M

Hz

(CH

698

: 17

47.4

MH

z)

Ant

enn

aS

/W(U

704

)

RF

Con

ecto

r(C

ON

700)

VP

4057

8

(U40

0) Bry

ce P

ark

SD

ATA

SC

LK

SE

NB

PD

NB

PD

LPF

Si4

200

(U

600)

I Q

Dua

l PA

M (

U70

1)

RF

PL

L

Si4

133-

T

(U50

3)

AFC

VA

PC

FR

OM

U70

2

+V

BA

TT

8

3VT

X

TX

EN2

fro

m U

400

VC

1V

C2

An

t. S

/WC

ontr

olC

ircu

it

VC

2

BA

ND

Sel

ectio

n

- G

SM

: Lo

w

- D

CS

: H

igh

<E

GS

M>

127

9 ~

131

4 M

Hz

<D

CS

> 1

327

~ 1

402

MH

z

-6d

Bm

@ 1

301.

4 M

Hz

(G)

-9d

Bm

@ 1

364.

4 M

Hz

(D)

21

1

53

911

71

24

25

5 6 7 831

4

2

7

26

,27

23

,24

12

,13

9,10

IF PL

L

9

/2

<E

GS

M>

88

0~89

5 M

Hz

: 798

MH

z

895~

900

MH

z : 7

90 M

Hz

90

0~91

5 M

Hz

: 798

MH

z<

DC

S>

766

MH

z

-6d

Bm

@ 7

98 M

Hz

-9d

Bm

@ 7

66 M

Hz

12

3

VC

2V

C1

Tx(

GS

M)

Tx(

DC

S)

Rx

L

LH

H LL

TX

EN2

Txp

ower

2

1

Block Diagrams 4-4

4-2-2 RF Receive Part

5. Flow Chart of Troubleshooting and Circuit Diagram

5-1 Power ON

'POWER ON'does not work

Charge the BatteryCheck the Battery Voltage

is more than 3.4V?

No

Yes

Yes

Check U100 and the path from +VBATTto C106

The node between D101 and C106 > 2.8 V ?

No

Yes

When the "END" key is pressed,D100 pin1 > 3.4V ?

Replace the PBA

No

END

Yes

Check the initial operation

U111, U112 pin5 = 2.5V ? Check U111, U112 and related circuit

No

Check for the clock signal at R609Check the clock generation circuit

(related to U502 and U601)

No

Yes

Yes

5-1 Flow chart of Troubleshooting and Circuit Diagram

Flow chart of Troubleshooting and Circuit Diagram 5-2

C112

6.3V10U

F

100KR

106

1

2

345

D100

UM

N1

C103

10NF

100KR

110

R109

10K

C102

10UF

6.3V

10NF

C104

100KR

105

R1001K

ON

/OF

F3

VIN

15

VO

UT

C100

100NF

LP

2981AIM

5-2.5

U112

2G

ND

4N

C

U111

LP

2981AIM

5-2.5

GN

D2

NC

43

ON

/OF

F

1V

INV

OU

T5

100KR

108

C111

100NF

C113

10NF

6.3V10U

FC

108

C133

1UF

R107

100K

1UF

C131

D101

MC

L4154

1UF

C132

100NF

C119

1UF

C105

0R

113

C106

C109

10UF

6.3V

RB

414II06N

ON

/OF

F3

VIN

1V

OU

T5

6.3V100U

FC

101

U103

LP

2985AIM

5-3.0

BY

PAS

S4

GN

D2 V

OU

T5

100NF

C110

LP

2985AIM

5-3.3

U100

BY

PAS

S4

2G

ND

3O

N/O

FF

1V

IN

10NF

C114

1

2

3

4

5

1UF

UM

C5N

TL

U105

DV

CC

2.5

AV

CC

2.5

+VB

AT

T

PO

WE

R

BB

PW

R

ON

_OF

F

VD

D3.0

C130

RT

C_V

CC

RT

C_3V

3

DC

VO

LT

PO

WE

R

DC

IN

BB

_PW

R

RT

C_3V

3


5-2 Initial

Initial Failure

Check and repair the importantsignals of U400 as follows

END

No U302 pin 6 = "H" ?

The node between R407 and C411

= "H" (RST)

NoCheck U106

R411 = "H" (SIMPWDN_BOOT)

NoResolder R411

Yes

R423 = "H"(GPIO4_MSIZE)

NoResolder R423

Yes

R421 = "L" (GPIO2_EXTPROC)

NoResolder R421

Yes

Replace PBA

Check all the other connection by Test S/W

Check the circuit around LCD

Yes


U400

U106

U400

VDD3.0

VDD3.0

R407

C411

R411

VDD3.0

SIMPWDN_BOOT

EL_EN

F_VPP

SYSRST

BOOT

MSIZE

EXTPROC

CSROM

R421

R423

FLASH2

F_CE

U302

R312


5-3 Charging Part

Abnormal charging part

Replace TACheck the CN300-1 pin 17,18 > 5 V ?

No

Yes

Yes

Check the U104 pin 3 > 5 V ? Resolder C115

Yes

No

U104 pin 4 = "L" ? Resolder R103

Yes

No

Resolder componentsaround U104

Check the U104 pin 5 4.2V ?

END

Yes

No


100N

F�

C11

7�R

104�R10

2�

100K

,1%

�

6.3V

�

82K

,1%

�R

103�

C11

6�10

UF

�

4�

2.7K

�

ZX

T13

P20

DE

6�Q

100�

3�

1�2�5�6�

10U

F�

C11

5�

2�1�IS

EN

SE

�

PR

OG

�4�

3�V

CC

�

5�V

SE

NS

E�

10V

�

ICH

AG

�D

CV

OLT

�

+VB

AT

T�

CH

G_O

N�

BA

T_V

OLT

�

U10

4�

LTC

1734

ES

6-4.

2#T

R�

DR

IVE

�6�

GN

D�


5-4 Sim Part

Phone can't access SIM card

Yes

U101 pin 6 = 3 V ? Resolder R101

END

Yes

No

Yes

Yes

U101 pin 5 = "H" ?

U101 pin 2, 3 = 3 V ?

Replace the PBA

Replace U101

Yes

No

No

CN100 pin 1, 5 = 3 V ?Resoldering CN100

and check open connectionfrom U101 to CN100

No

After Power ON,Check SIMCLK Signal on CN100 pin 3

in a few second

After SIM card insert,CN100 pin 2 = "H(SIMRST) ?

Replace PBA

Replace the PBA

Yes

Yes

No

No


R10

1�39

K�

2�V.

C1-

1�

3�V.

C1-

2�4�

VIN

,R1�

VD

D3.

0�

1UF

�C

107�

U10

1�F

DG

6323

L�

5�O

N/O

FF

�

R1,

C1�

6�R

2�1�

G�

8�9�G

�G�

10�

CL

E10

06-0

9370

9-00

1101

G�

1�1� 2�

2� 3�3�

4�4� 5�

5� 6�6�

7�G�

5�5�

SIM

RS

T�

SIM

DA

TA�

SIM

CL

K�

SIM

PW

RE

N�

SIM

VC

C�

CN

100�


5-5 Microphone Part

Microphone does not work

Resolder MIC andC424, C428, V400, V401

Check the connection

from MIC

END

No

Yes

Yes

Check the circuit related to U400

Resolder the R419, R420, R423,C424, C425, C426, C430 and C431

Yes

No

Check the MIC

NoReplace the MIC

Yes


U400

MIC400

VX1P

VX1N

AVCC2.5

+ -

C429

R424

R420

R427

C431

R419

C425

C426

C430

C434

C424

C428

V401

V400


5-6 Speaker Part

Speaker does not work

Yes

Check for the clock signal at R608Check the clock generation circuit

(related to U502 and U601)and resolder R608

U301 pin 17,18 =1.8V?

No

No

Resolder U301

Yes

Yes

Replace the PBAU230 pin 4,8="H"?

CN200 PIN 18,20=1.8V? Resolder U230

No

Yes

Yes

No

Check the SPK pins

No

Modify the SPK pins

Is Speaker working?

Yes

Change the Speaker

No

Yes

END


VD

D3.

0�

6.3V

�4.

7UF

�C

312�

R30

7�0�

C31

3�10

0NF

�

C30

9�10

0NF

�

7�

VD

D�

9�

VR

EF

�

VS

S�

8�3�

/IRQ

�

/RS

T�

4�

28�/WR�

SDIN�29�

SDOUT�32�

17�

SP

OU

T1�

SP

OU

T2�

18�

15�SPVDD�

SPVSS�16�

30�SYNC�

13�EQ2�

EQ3�14�

EX

T1�

2�

19�

EX

T2�

HPOUT-L/MONO�10�

11�HPOUT-R�

5�

IFS

EL

�

PL

LC

�

6�

SCLK�31�

26�D1�

25�

D2�

D3�

24� 23�

D4�

D5�

22� 21�D

6�

D7�

20�

EQ1�12�U

301�

YM

U75

9-Q

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1�

CL

KI�

D0�27�

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308�

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304�

11K

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310�

R30

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22K

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306�

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+VB

AT

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20�

R21

9�

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309�

4�IN

1�

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8�

NC

1�5�

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C2�

NO

1�2�

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2�10

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AX

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B�

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LIN

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ED

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C-�

SP

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K_E

N�

SP

K-�

SP

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+VB

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VIB

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TOR

�

RD

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M_C

S�

A(1

)�

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RQ

�

M_R

ES

ET

�


5-7 Key Data Input

Check Initial operation

Replace the PBAAre

KEYBOARD_ROW(0:4) is "Low" ?

When one of the keys is pushed,one of KEYBOARD_ROW(0:4) is "High" ? Replace the PBA

END

No

Yes

Yes

Yes

No


5-8 Receiver Part

Receiver does not work

Yes

EAR400 pin 2, 3 = short ? Resolder EAR400

EAR400 pin 2, 3, 6 = 1.5V ?

No

No

Replace the PBA

Yes

Yes

Replace the PBAU230 pin 4, 8 = "L" ?

CN200 pin 18, 20 = 1.5V ?Resolder R219, R220

and U230

No

Yes

Yes

No

Check the REC pins

No

Modify the REC pins

Is Receiver working?

Yes

Change the Receiver

No

Yes

END


EAR 400

U230

U400

PWO1P

PWO1N

6

23

REC-

REC+

1 2 3 4 56789

10

R220

R219

CN200

18

20

REC

REC+

REC-


5-9 Ring Indicator

Ring Indicator LEDdoes not work

Check the circuit related to U100U100 pin 5 = 3.3 V ?

Is Green color LED of 3LEDscorrectly work ?

Check Q4, R14, LED6

END

Check Q3, R12, LED6

Yes

No

Yes

Yes

No

No

NoCheck Q2, R13, LED6

Yes

Is Red color LED of 3LEDscorrectly work ?

Is Blue color LED of 3LEDscorrectly work ?


220

oh

m,5

%�

100

oh

m,5

%�

68 o

hm

,5%

�

R13�

R12�

HL500�

LED6�

1� 1�

2�2�

3�3�

4�4�

R14�

DT

C11

4YE

�

Q3�

2�

3�C

�

1�E

�

RI_

GR

EE

N�

RI_

RE

D�

RI_

BL

UE

�

RT

C_3

V3�

Q2�

DT

C11

4YE

�2�

C�

3�

E�

1�

Q4�

DT

C11

4YE

�2�

3�C

�

1�E

�


5-10 Back Light (for Main & Sub LCD)

Backlight does not work

Select LCD Contrast high levelLCD Contrast high level

in the menu?

CN 200 pin 10 = 3.3V ?Check the circuit related to

U100

No

Yes

Yes

No

MAIN LCD SUB LCD

Yes

END

Replace the PBACN200 pin 25 = "H" ?

SC600 pin 1 = "H" ? Check the circuitrelated to SC600

No

Yes

No

Do 3LEDs correctly work?

Yes

Check LED1, LED2,LED3

and R5, R6, R7

No

Replace the LCD module

Yes

END

Replace the PBACN200 pin 12 = "H" ?

LCD backlight on ?Check the circuitrelated to d365

No

Yes

No

Yes

Replace EL sheet


5-11 Back Light (for Key)

Backlight does not work

Select backlight "ON" modeBacklight "ON" mode

in the menu?

R215 = "H" ? GPO1 by test S/W

No

Yes

Yes

No

Resolder R215,R216or resolder Q200

Q200 pin 3 = "L" ?

No

Yes

Yes

END

Key PCB LED on ?Resolder R207~214and LAMP200~207

No


5-12 GSM Receiver

Rx OnRF input : CH center freq. + 67.7 kHz

Amp. : -50 dBm

U704Pin 8

-60 dBm

U704Pin 10

-60 dBm

F601Pin 3,4

-62 dBm

U600Pin 21, 22

-62 dBm

U600Pin 1, 2(100 KHz)

-50 dBm

Check RF connector-> resolder

Resolder &U704 Pin 10 -60 dBm

CheckVC1 : LVC2 : L

ResolderF601

ResolderC605, C606, L601

CheckC503 pin 23, 24(CH-100 KHz) X 2C510(1080MHz)

-6 dBm

Check circuitaround U503

Resolder U600

U601Pin 2, 3, 4, 5

40 mV

Resolder U601

ResolderU400

No

No

No

No

No

No No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes


5-13 GSM Transmit

Tx On (level : 5)

U704Pin 8

30 dBm

U704Pin 5

30 dBm

U701Pin 4

30 dBm

U701Pin 1

0 dBm

ResolderCON700

CheckVC1 : LVC2 : H

Change or ResolderU704

Resolder U700

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

CheckAnt. S/W, Control Circuit

CheckU701 : +VBATT

Pin 2 (APC)OK?

Resolder orChange U701

Yes

Check +VBATTor APC Control

No

U600Pin 25

7 dBm

Resolder or Change C611, R604

No

Yes

U600pin 12, 13 pin 9, 10 -6 dBm

ResolderU503

U600 Pin 5, 6, 7, 8

40 mV

ResolderOneC(U400)

ResolderU600

No

No

Yes

Yes


5-14 DCS Receiver

Rx OnRF input : CH center freq. + 67.7 kHz

Amp. : -50 dBm

U704Pin 8

-60 dBm

U704 Pin 1

-60 dBm

F600Pin 3,4

-62 dBm

U600Pin 17, 18

-62 dBm

U600Pin 1, 2

(100 KHz) -50 dBm

Check RF connector-> resolder

Resolder &U706 Pin 1 -60 dBm

CheckVC1 : LVC2 : L

ResolderF600

ResolderC602, C603, L600

Check U503 pin 23,24 (CH-100KHz) X 2

-9 dBm

Check circuit around U503

Resolder

U601 Pin 2, 3, 4, 5

1~2 V

Resolder U601

ResolderU400

No

No

No

No

No

No No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

U600


5-15 DCS Transmit

Tx On (level : 0)

U704Pin 8

25 dBm

U704Pin 3

25 dBm

U701Pin 5

25 dBm

U701Pin 8

0 dBm

U600Pin 24

10 dBm

ResolderCON700

CheckVC1 : HVC2 : L

Change or ResolderU704

Resolder U703

Resolder or C607, R600

U600pin 12, 13 pin 9, 10� -9 dBm

Resolder U503

U600 Pin 5, 6, 7, 8

40 mV

ResolderOneC(U400)

ResolderU600

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

CheckAnt. S/W, Control Circuit

CheckU701 : +VBATT

Pin 2 (APC)OK?

Resolder or ChangeU701

Yes

Check +VBATTor APC Control

No


AE

RO

�

L50

1�10

nH

�

10K

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501�

C50

8�10

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25�

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12�

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30�

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32�

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15�

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R50

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R50

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51�

U50

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Samsung SGH-A800 service manual -...

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Transcript of Samsung SGH-A800 service manual -...