Samsung SGH-X105 service manual -...

SGH-X105

SERVICE Manual

GSM TELEPHONE CONTENTS

1. Specification

2. Exploded Views and Parts List

3. Electrical Parts List

4. Flow Chart of Troubleshooting

5. Block Diagrams

6. PCB Diagrams

GSM TELEPHONE

ELECTRONICS

Samsung Electronics Co.,Ltd. AUG. 2003Printed in Korea.

Code No.: GH68-04199A

BASIC.

ⓒ

This Service Manual is a property of Samsung Electronics Co.,Ltd.Any unauthorized use of Manual can be punished under applicableInternational and/or domestic law.

SAMSUNG Proprietary-Contents may change without notice

1. SGH-X105 Specification

1-1

This Document can not be used without Samsung's authorization

GSM900Phase 1

EGSM 900Pha se 2

DCS1800Pha se 1

PCS1900

Fre q. Band[MHz]Uplink /Downlink

890~915935~960

880~ 915925~ 960

1710~17851805~1880

1850~ 19101930~ 1990

ARFCN ra nge 1~ 1240~124 &975~ 1023

512~885 512~ 810

Tx/Rx spa cing 45MHz 45MHz 95MHz 80MHz

Mod. Bi t rate/Bi t Period

270.833kbps3.692us

270 .833kbps3 .692us

270 .833kbps3 .692us

270. 833kbps3. 692us

Time SlotPe riod /Fra me Pe riod

576.9us4. 615ms

576 .9us4 .615ms

576 .9us4.615ms

576. 9us4 .615m s

Modulat ion 0 .3GMSK 0. 3GMSK 0. 3GMSK 0.3GMSK

MS Powe r 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm 30dBm ~0dBm

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

Sensi t ivi ty -102dBm -102dBm -100dBm -100dBm

TD MA Mux 8 8 8 8

Ce l l Rad ius 35Km 35Km 2Km -

1. GSM General Specification


SGH-X105 Specification

1-2


TX Power

control levelGSM900

5 33±2 dBm

6 31±2 dBm

7 29±2 dBm

8 27±2 dBm

9 25±2 dBm

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 levelPCS1900

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±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

2. GSM TX power class


2. SGH-X105 Exploded View and its Parts list

2-1


1. Cellular phone Exploded View

1

5

2

7

8

9

4

3-1

3-6

3-3

3-4

3-2

3-5 3

6


SGH-X105 Exploded view and its Part list

2-2


Location

No.Description SEC CODE Remark

1 FRONT COVER GH75-03140A

2 KEYPAD GH75-03142A

3 MAIN PBA GH92-01510A

3-1 MIC GH30-00041A

3-2 DOME SHEET GH59-00942A

3-3 SCREW 6001-001479

3-4 INTENNA GH42-00314A

3-5 LCD GH07-00385A

3-6 SPEAKER 3001-001442

4 CONNECTOR COVER GH73-02097A

5 VOLUME KEY GH75-03143A

6 MOTOR GH31-00062A

7 REAR COVER GH75-03141A

8 SCREW 6001-001479

9 BATTERY GH43-00980A

2. Cellular phone Parts list


SGH-X105 Exploded view and its Part list

2-3


3. Test Jig (GH80-00865A)

3-1. RF Test Cable

(GH39-00090A)

3-2. Test Cable

(GH00-00127A)

3-3. Serial Cable

3-4. Power Supply Cable 3-5. DATA CABLE

(GH39-00159A)

3-6. TA

(GH44-00184A)


3. SGH-X105 MAIN Electrical Parts List


3-1

SEC Code Design LOC

2203-000812 C101,C103,C104,C216

2203-005061 C102,C106,C107,C113

2203-001598 C105

2203-006053 C108,C109,C110,C111

2203-006053 C112,C115,C117,C118

2203-006201 C114

2203-000233 C116,C125,C126,C127

2404-001268 C119,C120,C122

2203-000995 C121,C405

2203-005061 C123,C130,C207,C214

2203-000233 C128,C129,C205,C213

2203-006307 C131

2404-001164 C132

2203-005682 C133,C134,C135,C136

2203-005682 C137,C138,C139,C140

2203-005682 C141,C142,C143,C144

2203-005682 C145,C146,C147,C148

2203-005682 C149,C150,C151,C152

2203-001153 C153,C154,C155,C156

2203-001153 C157,C158,C159,C160

2203-001153 C161,C162,C241

2203-000679 C202,C203,C255,C311

2203-000654 C206,C426

2203-001405 C208,C310,C401,C403

2404-001086 C209,C218

2203-000812 C217,C226,C406,C427

2203-000438 C219,C430,C432,C434

2203-005061 C220,C224,C262,C309

2203-000233 C221,C236,C319,C321

2203-005065 C222,C225,C252

2203-005496 C223,C301,C302

2203-000359 C228

2203-000278 C229,C246,C257,C258

2203-000254 C230,C231,C232,C233

2203-000854 C235,C253,C261

2203-000254 C237,C238,C239,C240

2203-005052 C242

SEC Code Design LOC

2404-001105 C245,C250

2404-001282 C247

2203-001072 C248,C251

2203-000386 C254

2203-005056 C259

2203-005503 C260

2203-000254 C303,C304,C305,C306

2203-000254 C307,C308,C312,C329

2203-005061 C315,C316,C324,C330

2203-000628 C320,C322

2203-002525 C326

2203-000233 C327,C328,C333,C402

2203-005061 C331

2203-005480 C332

2203-001405 C404,C407,C411,C424

2203-002677 C408,C410

2203-000233 C414,C419,C440

2203-005234 C415,C416

2203-000278 C417,C425,C433

2404-001134 C420,C421

2203-000254 C423,C435,C437,C438

2203-002668 C429

2203-001405 C431

2203-000438 C436

2203-000254 C439

3709-001250 CN100

3710-001105 CN101,CN205

3710-001611 CN201

3710-001853 CN202

3705-001287 CN400

3722-001880 CN401

0407-000115 D100

2901-001260 F105,F106,F107,F108

2901-001260 F109

2909-001191 F400

2904-001410 F401

2703-002112 L100


SGH-X105 Electrical Parts List


3-2

SEC Code Design LOC

2703-002313 L301

2703-001907 L402

2703-001207 L404

2703-001751 L405

2703-001543 L406

2703-001737 L407

0601-001647 LED100,LED101,LED102

0601-001647 LED103,LED106,LED107

0601-001647 LED108,LED109,LED110

0601-001647 LED111,LED112,LED113

0601-001402 LED200

4302-001130 M1

2801-003856 OSC300

2809-001260 OSC400

0504-001113 Q100

0502-001201 Q101

0504-000168 Q102,Q400

0504-000167 Q200,Q201

0504-001042 Q203,Q204,Q205

2007-000174 R101,R102,R103,R104

2007-000174 R105,R106,R107,R108

2007-000174 R109,R111

2007-000171 R112,R115,R209,R217

2007-000758 R113,R242

2007-007137 R114

2007-003010 R117,R118,R119,R120

2007-003010 R121,R122,R123,R124

2007-003010 R125,R126,R127,R128

2007-007142 R129,R130,R306

2007-007139 R131

2007-001323 R132

2007-002965 R133,R135

2007-000151 R134,R204,R205,R208

2007-000162 R202,R212,R218,R234

2007-007014 R203

2007-000775 R206

2007-001325 R210,R211

SEC Code Design LOC

2007-000148 R213,R230,R415

2007-000636 R214

2007-007200 R215,R216

2007-000141 R219,R225

2007-001119 R220

2007-000171 R221,R222,R224,R236

2007-000140 R223,R231,R232,R233

2007-000157 R228,R229,R301,R304

2007-000140 R235,R239,R246,R247

2007-000171 R237,R238,R243,R248

2007-007590 R240

2007-000165 R241

2007-000139 R244

2007-000138 R245,R416

2007-000172 R249,R251,R313,R314

2007-000171 R250,R312,R317,R320

2007-000170 R302

2007-007107 R305

2007-007573 R308,R310

2007-000172 R315

2007-000157 R316

2007-000171 R401,R406

2007-000029 R402

2007-003010 R403

2007-001311 R404,R405

2007-001291 R407

2007-001307 R408,R409

2007-000162 R410

2007-001306 R412,R417

2007-000242 R413

2007-002797 R414

3404-001152 SW201,SW202

1203-002902 U100

1203-002127 U101

0506-001052 U102

1203-001518 U103

1203-002633 U105


SGH-X105 Electrical Parts List


3-3

SEC Code Design LOC

1204-001984 U200

1204-001261 U201

GH09-00024A U301

1209-001219 U302

1109-001278 U304

1205-002185 U400

1205-002268 U401

1201-001954 U402

1209-001434 U403

0801-002345 U404

1405-001112 ZD101,ZD113

0404-001172 ZD111

0406-001167 ZD112

0403-001446 ZD114

0403-001427 ZD205

1405-001082 ZD206,ZD207,ZD208

1405-001018 ZD209,ZD219

1405-001082 ZD218,ZD404,ZD409

1405-001082 ZD410,ZD411

0406-001083 ZD412,ZD413,ZD414


4. SGH-X105 Flow Chart of Troubleshooting

4-1


1. Power On

Current consumption>=100mA

' Power On ' does not work

Voltage >= 3.3V

Download again

Charge the Battery

pin#11 >= 2.8V Check U100 and C116

pin#39 and pin#33 =2.8V

Check U100 and C115

Check the clocksignal at pin4 of

OSC400Freq = 13MHz ,

Vrms ≥ 300mVand

Vpp = 900mVpp

Check the clock generation circuit(related to OSC400, U401 pin 19)

END

No

Yes

Yes

Yes

Yes

Yes

No

No

No

No

pin#9 = 1.8VNoYes

Check the V bat. Voltage

Check the pin of U100

Check the initial operation

Check the current consumption


SGH-X105 Flow Chart of Troubleshooting

4-2


2. Initial

The pin #9 of U100 = 1.8Vand

the pin #10 of U100 =2.825V ?

Initialization Failure

Check the U100(If it has some problem, it has to be

replaced.)

END

No

Yes

Is the pin #19 ofU100

"Low -> High"?

Yes

Check the U301There is 32.768kHz

wave forms at the C320and C322

Check the LCD Part

Yes

No

No

Yes

Yes

Yes

The Voltage is "High"at the C111,C118

Check the Audio Part

No

Check the U100(If it has some problem, it has to be

replaced.)

Check the U200The pin #25 of U100 is"High"

Check the U100

LCD display is O.KNo

No

Yes

Yes

Sound is O.KNo



4-3


3. Sim Part

Is there any Signalspin#52, #53, #54 of U100?

"Insert SIM" is displayed on the LCD

Check the U301

Check the SIM Card

END

No

Yes

Yes

Yes

NoCheck the U100Is there any Signals

pin#1, #2, #3, #4 of CN100?



4-4


VBAT

1UF

C13

1

C11

81U

F

1.2K

,1%

R11

4

Q10

0

13 2

R11

2 0

33P

FC

101

33P

FC

134

33P

F33

PF

C13

3

33P

FC

104

C15

2

VBAT

VC

C_1

.8A

VC

CD

330K

R11

3

16V

C11

11U

F

C13

210

UF

C10

610

0NF

C14

733

PF

C14

633

PF

ZD11

1

C13

633

PF

33P

FC

135

VBA

T

33P

FC

103

100N

FC

123

VC

CD

33P

FC

144

15uH

L100

33P

FC

151

33P

FC

150

C14

933

PF

33P

FC

148

_SH

DN

4

C13

933

PF

U10

5

3F

B

GN

D21

SW

5V

IN

VR

F

33P

FC

145

15R13

515R

133

1UF

C11

2

M1

NEG2

POS1

1UF

C11

0

100N

FC

113

C13

010

0NF

C10

81U

F

VSIM48

9

VLD

O_

21139

VLD

O_

3

VLD

O_

437

VLD

O_

53342

VLD

O_

6

40V

LDO

_7

VREF30

VR

TC12

VD

D67

41

1V

EX

T

VIB_DRV4

36V

L4S

_AV

L4S

_B3532

VL5

S_A

VL5

S_B

31

VLD

O_

1

SIM_RST

53U

P_C

LKU

P_I

O52

UP

_RS

T54

VA

CC3

VB

AT

2

10V

DD

12

VD

D34

38

VD

D5

34

RING_DRV

RIN

G_P

WM

5513R

TC_A

LMN

SC

LK17

SD

I15

SD

O16

SIM_CLK5051 SIM_IO

49

INTR

Q

7LED1_DRV

LED2_DRV8

PS

W1_

BU

F2021

PW

R_K

EE

P

PW

R_S

W1

N46 47

PW

R_S

W2

RE

SE

TN19

5

63GNDGND

64

GND6566

GND

60G

ND

D

GNDD1

628 GNDQ

14

EN

_5A

EN

_5B

27

GN

D57

GND6768

GND

58G

ND

GN

D59

61GNDGND62

AD

C_T

RIG

BT

EM

P43

29 CREF

18C

SN

22E

N_3

EN

_4[0

]23 24

EN

_4[1

]E

N_5

25 26

U10

0

AD

C_A

UX

144 45

AD

C_A

UX

256

C10

710

0NF

C13

833

PF

33P

FC

137

2.2U

FC

105

C11

610

0PF

C10

210

0NF

R11

50

G 910G

11 22

33

44 5

5 66

G 78G

CN

100

VOSC

VPAC

VC

CA

RD

B118

RE

SE

TB

RS

9

VC

C29 30

VC

C

10W

RD

2D

UM

MY

31D

UM

MY

DU

MM

Y32

DU

MM

Y5 6

DU

MM

Y

GN

D28 3

LED

+

LED

-4

D3

15 16D

4D

517 18

D6

D7

19 20D

8D

921

DU

MM

Y1

D1

13 22D

10D

1123 24

D12

D13

25 26D

14D

152714

D2

U10

4

7C

S1B

12D

0

2.2U

FC

114

1UF

C10

9

VR

TC

C11

7 1UF

R13

415

K

1UF

C11

5

VC

CB

ZD11

4

C14

333

PF

C14

233

PF

33P

FC

141

33P

FC

140

BLI

GH

T_P

BLI

GH

T_N

LCD

_CS

L

A(2)

L

CP

_WE

NL

CP

_OE

NL

UP

_CS

RS

T

BLI

GH

T_N

BLI

GH

T_P

VR

EF

SIM

DA

TA

SIM

RS

TS

IMC

LK

PW

R_O

NJI

G_O

NR

TCA

LAR

M

EN

_VR

FE

N_V

PAC

XO

EN

A

UP

_SD

I

UP

_SC

LK

LED

_EN

KE

Y_R

OW

(0)

KE

Y_C

OL(

2)

TA

_VE

XT

PW

R_K

EE

P

BA

CK

LIG

HT

RS

T



4-5


4. Charging Part

The pin #17, #18 ofCN201 is TA_VEXT =

5V?

Abnormal charging operation

The pin #3 of U101 is"low"?

Replace TA or Check CN201

Check the U101

Check the Q101

END

No

Yes

Yes

Yes

No

NoThe pin #3 of Q101 is

"low"?

NoSolder again or change R130

Yes

The ICHRG = 1V(during

charging) and = 180mV(full

charging)?



4-6


U102

2

5

6

3

1

4

4

Q101

3

1256

U101

6DRIVE

2 GND

ISENSE1

4PROGVCC3

VSENSE5

VBAT

47K,1%R131

10UFC120

10V13

2

Q102

10K,1%R129 10V

10UFC119

10K,1%R130

3KR132

CHG_DET

TA_VEXT

CHG_ON

TA_VEXT

ICHRG



4-7


5. Microphone Part

Is the assembled statusof microphone O.K?

Microphone does not work

C247 = 2.5V

Reassemble the microphone

Solder the microphone again or

Replace C225, R220, C247, R219 R214

END

No

Yes

Yes

Yes

Yes

No

Is microphone ok?No

Check U200

Check the reference voltage on mic path



4-8


EA

R_M

IC_P

EA

R_S

PK

_P

JAC

K_I

N

NC

R22

6

6.3V

C25

010

UF

R22

4 0

R23

60

C26

139

PF

0R

237

C25

156

PF

R24

120

0K10

PF

C25

7

C22

8

VC

CA

150P

F

R21

3

R21

92.

2K

10K

ZD411

C24

5

680

R22

06.

3V10

UF

NC

C24

3

C24

856

PF

39P

FC

235

10P

FC

229

C24

610

PF

R23

0

10K

0R21

7

NC

C24

9

MA

IN_M

ICIC

EB

ER

G-F

PC

B

C25

527

PF

15P

FC

254

1KR22

3

180P

FC

260

VC

CA

R24

082

K,1

%C22

51U

FC

226

33P

F

ZD404

NC

C25

6

VC

CD

C25

2

1UF

C25

810

PF

330K

ZD410

6.8P

F

R24

2

C25

9

0R

222

R22

52.

2K

R21

4

270K

3 2

ZD409

Q40

0

1

33U

FC

247

39P

FC

253

3 1

100K

R23

4

CN

401

2 6 5 4JA

CK

_IN

AU

XIN

AU

XO

UT

MIC

OU

T

MIC

IN

EA

R_S

WIT

CH

AO

UT

BP

AO

UT

BN



4-9


6. Speaker Part

Receiver

Probe power of C262O.K?

Can not voice from receiver

Cheak power supplyfor U200

VCCD,VCCAO.K?

Check U100

YES

No

Yes

NoReceiver U200O.K?

Replace Receiver

Receiver U301

Yes

END

No

RECNRECEIVE R

ZD20

7

ZD20

6

RECP

11

2210R251

10R249

0R250

AOUTAN

AOUTAP



4-10


7. Speaker Part

Loud speaker

Check signals of CN205O.K

No Melody from Loud Speaker

Check Power of U201PIN #15,32,6,7

O.K?

Check data linesof U200

O.K

END

Yes

Replace Speaker

YES

No

Check U100

No

No

Check LCD and Memory



4-11


SPEAKE R

6.3V4.7UFC209

/IRQ

3

31 /RD

4

/RS

T

/WR28

SP

OU

T1

1718

SP

OU

T2

SPVD D 15

16

SP

VS

S

VD

D

7

VR

EF

98

VS

S

29 /CS

14EQ3

10HPOUT-L/MONO

HPOUT-R 11

32 IOVDD

2

LED

MT

R19

NC

56

PLL

C25 24

D3

D4

23 22

D5

21

D6

20D

7

12EQ1

EQ213U201

A030

1

CLK

I

27 D0

D126

D2

VCCD

R21

1

R21

03.

3K

C214100NF3.

3K

C213100PF

NCC201

R207NC

CN205-1

1

270PFC206

C20227PF

6.3V4.7UFC218

R20515K

27PFC203

22NF

C208

VBAT

100NFC220

2

NCC21033K

1NFC219

R206

R203 51K

VCCD

100NFC207

0R209

DL(0)

A(0)

VIB

_EN

DL(

7)

DL(

6)

DL(

5)

DL(

4)

DL(

3)

DL(

2)

DL(1)

CP_WENL

RST

CP_OENL

YMU_IRQ

YMU_EN

YMU_LED



4-12


F400 CHECKpin13 ≥ -65dBm ?

8. EGSM Reciever

CONTINUOUS RX ONRF INPUT : 62CHAMP : -50dBm

NORMAL CONDITIONcatch the channel?

U401pin 12,13≥-20dBm ?

F400 CHECKpin1, 2 ≥ -65dBm ?

U401 CHECKpin21,22 ≥ -65dBm ?

U403 CHECKpin 25,28 : 3V ?

Check soldered status ofR402

CN400resolder or change

F400resolder or change

C408,C410,L402resolder or change

U100pin33 , C118check or resolder

U403 CHECKpin 7 : 13MHz ?Vp-p : 860mV?

OSC400 CHECKpin 4 : clean 3V ?

U403 change orresolder

U401 CHECKpin 14,23,26,32:

clean 2.8V?

C438,R416resolder

OSC400 change orresolder

U100pin33, C111check or resolder

U401 pin3,4Vp-p : 240mV?

U400 CHECKpin6, 20 : 2.8V ?

U400resolder or change

U401 pin1, 2Vp-p : 250mV ?


U400 pin 2,3,4,5Vp-p : 100mV ?

CHECKU200

NO

YESNO

NO

NO

NO NO

NO

NO NO

NO

NO

NO

NO

NO

YES

YES

YES

YESYES

YES YES YES

YES

YES

YES

YES

YES

OSC400 CHECKpin 3 : 13MHz ?Vp-p : 950mV?




4-13


9. EGSM transmitter

F400 pin 13 :about 2~3 dBm?

CN400, C406check&change

F400pin11 : 2.8 V?

U200,Q203check & change

BetweenC429&R406≒ 4~5dBm?

F400check & change

C420 : 3.7 V?

NO NO

YES

YES

YES

NO

NOBATTERY, U100check & change

BetweenR410& U402 :

1.2V?

YES

NOR410

check & change

R407:≒ -5dBm ?

YES

C427 : 3V?

YES

YES

U402change

NO

U200check

U200check & change

YES

NO

U401pin14,23,26,32 :

2.8V ?

U100pin39,C111change or resolder

YES

U401pin9,10,12,13

:-20dBm ?

U401pin5,6,7,8 :1.7V ?

YES

U200change

NO

NO

U402change or resolder

YES

U403pin5,25,28: 3V ?

NOU100 pin33,C118

change or resolder

NO

U403pin 7 : 13MHz?Vp-p: 950mV

YES

U403pin9,10,11,1213

: 3V?

YES

YES


OSC400pin 3 : 13MHz?Vp-p : 950mV

OSC400change or resolder

U200check or change

0SC801pin 4 : 3V ?

U100 pin33,C118change or resolder


NONO

YES

NO

YES

NO

CONTINUS TX ON CONDITIONTX POWER DAC:500 CODE APPLIED

CH:62RBW : 100KHzVBW : 100KHzSPAN : 10MHz

REF LEV. : 10dBmATT. : 20dB

NO



4-14



10. PCS Reciever

CONTINUOUS RX ONRF INPUT : 660CH

AMP : -50dBm

NORMAL CONDITIONcatch the channel?

Check soldered status ofR402,L401

U401pin 12,13≥-20dBm ?


F401 CHECKpin4,6 ≥ -65dBm ?

U401 CHECKpin17,18 ≥ -65dBm ?

U403 CHECKpin 25,28 : 3V ?

CN400resolder or change



C415,U415,L404resolder or change


U403 CHECKpin 7 : 13MHz ?Vp-p : 860mV?

OSC400 CHECKpin 4 : clean 3V ?

U403 change orresolder

U401 CHECKpin 14,23,26,32:

clean 2.8V?

C439resolder

OSC400 change orresolder

U100pin39, C111check or resolder

U401 pin3,4Vp-p : 240mV?

U400 CHECKpin6, 20 : 2.8V ?


U401 pin1,2Vp-p : 250mV ?


U400 pin 2,3,4,5Vp-p : 100mV ?

CHECKU200

NO

YESNO

NO

NO

NO

NO NO

NO

NO NO

NO

NO

NO

NO

YES

YES

YES

YES

YES YES

YES YES YES

YES

YES

YES

YES

YES

OSC400 CHECKpin 3 : 13MHz ?Vp-p : 950mV?

NOU100pin33 , C118check or resolder



4-15


11. PCS transmitter

F400 pin 13 :about 2~3 dBm?

CN400, R402check&change

F400pin9 : 2.8 V?

U200,Q204check & change

BetweenF400&L407:≒4~5dBm?

F400check & change

C420 : 3.7 V?

NO NO

YES

YES

YES

NO

NOBATTERY, U100check & change

BetweenR408& U402

:1.2V?

YES

NOR408

check & change

NO

R1005:≒ -5dBm ?

YES

C427 : 3V?

YES

YES


NO

U200check

YES

U200check

NO

U401pin14,23,26,32 :

2.8V ?


YES

U401pin9,10,12,13

:-20dBm ?

U401pin5,6,7,8 :1.7V ?

YES

U200change

NO

NO


YES

U403pin5,25,28: 3V ?

NOU100 pin33,C118

change or resolder

NO

U403pin 7 : 13MHz?Vp-p: 950mV

YES

U403pin9,10,11,1213

: 3V?

YES

YES


OSC400pin 3 : 13MHz?Vp-p : 950mV

OSC400change or resolder

U200check or change

OSC400pin 4 : 3V ?



NONO

YES

NO

YES

NO

CONTINUOUS TX ON CONDITION

CH : 698CH(DCS),660CH(PCS)

TX POWER CODE: 350 CODE Aplied

RBW : 100KHz

VBW : 100KHz

SPAN : 10MHz

REF LEV. : 10dBm

ATT. : 20dB



4-16


MIC

RO

ST

RIP

LINE

RF

3140

10P

F

VO

SC

C43

3

VR

F

C42

1

6.3V

CN

400

G1

3

G2

4

IN1

OU

T2

100U

F

C43

51

0NF

C43

810

NF

OS

C40

0

2

GND

3

OUTVCC

4

VT

1

1.2P

F

270P

FC

426

C41

6

1NF

C43

2

22N

FC

401

0.75

PF

C40

8

100

R41

6

10N

FC

423

22N

FC

424

10P

FC

425

TP

717T

P71

8

VR

F

TP

715T

P71

6

560

R41

4

G1

1G

23

5G

3

IN2

OU

T1

4 6O

UT

2

R41

510

K

F4

01

VR

F

AN

T

11

22

PC

SR

X

13

VC1

VC2

11

VC3

5

R40

20

EG

SM

RX

EG

SM

RX

2

12

EG

SM

TX

7GG

14

16

GG

19

20

G

6

F4

00

ANT1

5

DC

SR

X3

DC

SR

X4

DC

S/P

CS

TX1

0

1

NC

R41

1

10

0K

R41

0

22N

FC

403

C42

2N

C

C43

01

NF

C41

122

NF

0R

406

NC

C41

8N

C C42

8

2.7n

HL4

07

NC

C40

9

L402

27nH

150

C43

91

0NF

R41

2

C42

90.

5PF

0.75

PF

C41

0

47P

FC

405

C41

51.

2PF

30R

407

C40

422

NF

C43

41

NF

R41

715

0

4O

UT

VC

C5

VR

F

U4

04

3G

ND

2INNC

1

VP

AC

VR

AM

P65

VR

EG

VB

AT

7

GS

M8

50

/90

0O

UT9

PC

SO

UT

11

TXE

N3

VB

AT

T4

VCC

10

8

VCC2VCC2

12

U40

2

BA

ND

21

DC

SIN

GN

D 13

GS

M85

0/90

0IN

1.5K

R41

3

VO

SC

C43

61N

F

33P

FC

406

VO

SC

270

R40

9

180

R40

5

R40

8270

R40

4

100P

FC

419

180

22N

FC

431

206.

3VR

403

VDDC

7XIN19

XOUT

100U

F

C42

0

RX

IP

3R

XQ

N

RX

QP

2

17

SCLK

SDI

18

15

SD

O

SENB

16

VDDA20 6

GND

GND22

GND23

GND24

ION

12

11

IOP

PD

NB

14

5R

XIN

4

10

CKN

CKP9

1G

ND

8GND

13

GN

D

21

U4

00

R40

10

33nH

L406

VO

SC

L404

C43

710

NF

6.8n

H

VR

F

C44

010

0PF

3.9n

HL4

05

VO

SC

NC

L401

28 25

VD

DR

XIN7

VR

FC

402

100P

F

16

23

RF

LO

N

RF

LO

P24

SC

LK

12 13

SD

I

SD

O

10 11

SE

NB

5VDDD

VD

DI 2627

IFL

OP

NC

8

NC

149

PD

NB

20RFLA

RFLB 19

RFLC17

RFLD

GND

18GND

21GND

GN

D

2229

GN

D

GN

D30

3 IFLA

IFLB2

IFL

ON

U4

03

1 GND

31

GN

D

GN

D

32

GND4

GND6

15

TX

IP

TX

QN

87T

XQ

P

23

VD

D1

VDD214

VDD332

VDD4

26

RF

IGP

RF

IPN

18

17

RF

IPP

RFLON13

RFLOP12

RF

OD

24

25 RFOG

6T

XIN

52IO

P

29

L1

L2

28

31

PDNB

RF

IDN

20

19

RF

IDP

RF

IGN

22

21

GND

GND

30

33

GND

GND34

GND35

GND36

10

IFLON

IFLOP

9

ION

1

U4

01

CK

N3

CK

P4

DIAG116

15

DIAG2

11

GND

27

22N

FC

407

10P

FC

417

33P

FC

427

100P

FC

414

DP

CS

_PA

M_I

N

GS

M_P

AM

_IN

TX_B

AN

D_S

EL

TX

PO

WE

R

AF

C

CL

K1

3M

_T

R

CLK

13M

_MC

CLK

13M

_RF

CLK

13M

_YM

U

TX

_EN

PC

S_R

X_E

N

GS

M_T

X_E

ND

CS

_TX

_EN

GS

M_P

AM

_IN

DP

CS

_PA

M_I

NS

I_E

N

SE

RD

AT

SDO

SD

O

SI_

EN

TXIN

TXIP

TX

QN

TX

QP

SY

N_E

N

RX

IP

RX

IN

RX

QP

RX

QN

CLK

13M

_RF

SE

RL

E

SE

RC

LK

SE

RD

AT

SE

RC

LK

SE

RL

E


5. SGH-X105 Block Diagrams


5-1

1. RF Solution Block Diagram

Antenna

ASM

RF

FILTER

RF

FILTER

SI4200

SI4133T

π/ 2

RF

PLL

PGA

SERIAL DATA

INTERFACE

GSM:890MHz~915MHz

PCS:1850MHz~1910MHz

PAM

GSM:925MHz~960MHz

PCS:1930MHz~1990MHz I,Q

CSP1093 TRIDENT

DSP16000

ARM7TDMI

UI

SERIAL

DATA,

CLK,

LE

LNA

PGA

A D C

A D C

IF

PLL

D E T

100KHz

CHANNEL

FILTER

D A C

D A C

PGA

PGA

R X

TCVCXO13 MHz

C L K

A F C

T X

I,Q

SI4201


SGH-X105 Block Diagrams


5-2

2. Base Band Solution Block Diagram

TRIDENT

B'D B'D conn.

Audio

Keypad

LCD

Memory part

X-TAL32.768KHz

RF SOLUTION

- RF IC- PAM- MAIN VCO- TX VCO- IF VCO

GPIO

POWER

(DC/DC,CHARGER,

SIM)

X-TAL

13MHz

RS232

CSP1093

Audio Part

LCD

KEYBOARD

SRAM

(16M)

FLASHROM

(128M)

TXIPTXINTXQPTXQNRXIPRXINRXQPRXQNSERCKSERLESERDARFOVLTXPOCTL

<RF DIRVER>TXI/QRX I/QTXPSERCKSERLESERDAOCTL

IORWN

AB[8:0]DB[15:0]

INT1IRQxPAxRSTB

IORWN

AB[8:0]DB[15:0]INT1IRQxPAxRSTB

ARM

JTAG/ICE

DAICKDAIRNDAIDODAIDI

DAIDSPJTAG JTAG

GPRS

ACC

PPI(ProgrammablePeripheral I/O)

RTC

JTAG/ICE

DSP16000

ARM7TDMI

EMI

CCD

CCD conn.


6. SGH-X105 PCB Diagrams

6-1


1. Main PCB Top Diagram

AN

T

C101

C10

2C

103

C10

4

C105

C10

6C

107

C108 C109C110

C11

1

C11

2

C11

3

C11

4C

115

C116

C11

7

C11

8

C119

C120

C121

C122

C123

C12

5

C12

6

C12

7

C12

8

C12

9

C130

C13

1

C132

C201C202C203

C20

5

C20

6 C207

C208C209

C21

0

C211

C213

C214

C215

C21

6C

217

C218

C219

C220

C221

C22

2

C223

C224

C225

C226C228C229

C230C231

C23

2

C233

C23

5

C236

C237

C238

C239

C24

0

C241C242

C243

C24

4

C245

C246C247

C24

8

C24

9

C250

C25

1

C252

C253

C25

4 C25

5

C256

C25

7

C258C259

C260

C261

C26

2

C301

C30

2

C303

C30

4

C30

5

C30

6

C307C308

C30

9

C310

C31

1C

312

C315C316

C319

C320C321C322

C324

C32

6

C32

7C

328

C32

9

C33

0

C33

1

C33

2

C33

3

C401

C402C403

C404C40

5C

406

C40

7C408

C40

9

C410

C411

C414

C41

5C

416

C41

7

C41

8

C41

9

C42

0C

421

C42

2

C42

3C424

C42

5

C42

6C

427

C42

8C

429

C43

0

C43

1

C432

C433

C43

4

C435

C43

6

C437

C438

C439

C44

0

CN

100

CN

201

CN

202

CN205

CN400

CN401

D10

0

F10

5F1

06F1

07F

108

F109

F400

F401

G1

G2

G3

G4

L100

L301

L401

L402

L404

L405

L406

L407

M1

OSC300

OS

C40

0

Q100

Q101

Q10

2

Q20

0Q

201

Q203Q204 Q205

Q40

0

R11

2

R11

3

R114R11

5

R12

9

R130R131

R132

R133

R13

4

R135

R20

2

R20

3

R20

4

R20

5

R206R20

7

R20

8

R209

R210

R211

R212

R213

R21

4

R215R216

R217

R218

R219

R220

R221

R22

2

R223

R22

4

R225

R22

6

R228

R229

R23

0

R231R232

R233

R234

R235

R23

6

R23

7

R238

R239

R240R24

1

R242

R24

3

R246

R24

7

R24

8

R30

1

R302

R304

R305

R30

6R

308

R31

0

R31

2

R31

3

R31

4

R31

5

R31

6R

317

R31

8

R31

9R

320

R401

R40

2

R403

R40

4

R405

R406

R407R408 R409

R41

0R

411

R412

R41

3R

414

R415

R41

6 R417

SW201 SW202

U100

U101

U10

2

U103

U105

U200

U20

1

U30

1

U30

2

U304

U400

U40

1

U402

U40

3

U40

4

ZD

111

ZD

112

ZD114

ZD205

ZD208

ZD

209

ZD218ZD219

ZD404

ZD40

9ZD

410

ZD41

1

ZD41

2

ZD413

ZD41

4


SGH-X105 PCB Diagrams

6-2


2. Main PCB Bottom Diagram

*

0

1

2

3

4

5

6

7

8

9

C&

I

C133

C134

C135C136

C137

C138C139

C140

C141C142

C143

C144C145

C146

C147C148

C149

C150C151

C152

C153 C154

C155 C156C157 C158

C159

C160

C161

C162

CN101

DO

WN

GN

D1

LED

100

LED101

LED102

LED

103

LED

106LE

D107

LED108

LED109

LED110

LED111

LED112

LED113

LED

200

LEFT

MA

IN_M

IC

ME

NU

PW

R

R101

R102

R103

R104

R105

R106

R107

R108

R109

R111

R117

R118

R119

R120

R121

R122

R123

R124

R125

R126

R127

R128

R244R245

R249

R250

R251

RECP

RIGHT

SE

ND

SH

AR

P ST

O

T1T

2

T3

T4

T5

T6

TP

715

TP

716

TP

717 TP

718

U104

UP

VC

CD

ZD101

ZD

113

ZD206

ZD207

Samsung SGH-X105 service manual -...

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Transcript of Samsung SGH-X105 service manual -...