background image

5-22

Flow chart of trouble shooting

L

L

Film Cap

Coilcraft

Tx(DCS)

L

Coilcraft

L

2012

LH

Film Cap 2012

L

VC2

H

VC1

Tx(GSM)

VC3

H

RX

R604

10

L633

10

R605

33nH

33PF

C647

C698

NC

4.7nH

L631

C665

27PF

C669

39nH

L622

47PF

L611

8.2nH

100PF

C668

1

PINGSM

5

POUTDCS

4

POUTGSM

2

VAPC

7

VCTL

3

VDD1

6

VDD2

G2

11

G3

12

G4

13

G5

14

G6

15

G7

16

G8

17

G9

8

PINDCS

U608

PF08107B-TB

9

G1

18

G10

10

1

IN1

IN2

3

OUT1

7

5

OUT2

C677

100PF

R652

NC

U603

FAR-G6CH-1G8425-L218

2

G1

G2

4

6

G3

G4

8

2

3

1

18nH

L612

2SC4617

Q604

6.8nH

L614

B1

5

B2

6

C1

3

C2

1

E1

4

E2

Q600

RN4985-TE85L

2

C614

56nH

L621

VCCMIX

12

VCCPLL/LNA

48

VCCRELO

11

VCOIN

100PF

RFLOIN

1

SDATA

37

TESTOUT

14

VCCCOMP

42

VCCCTRL

45

VCCIF

29

VCCIFLO

22

VCCIQ

51

POONRX1

32

POONRX2

38

POONTX

18

QIN

17

QINB

25

QOUT

24

QOUTB

21

RESET

47

MIX1GSMINB

49

MIX1OUT

50

MIX1OUTB

44

MIX2OUT

43

MIX2OUTB

36

NC

NC

34

15

PLLOUT

33

IIN

19

IINB

27

IOUT

26

IOUTB

55

LE

MIX1DCSIN

3

2

MIX1DCSINB

53

MIX1GSMIN

54

GSMB

4

GSMC

5

GSME

16

ICURAD

31

IFDIVSEL

41

IFIN

40

IFINB

30

IFLOIN

20

DCSE1

7

DCSE2

39

GNDCTRL

46

GNDIF

28

GNDIFLO

23

GNDIQ

52

GNDMIX

GNDPLL/LNA

13

6

35

BAND

56

CLK

10

DCSB

8

DCSC

9

100

R622

HD155128TF

U605

R638

91K,1%

R625 270

82nH

R628

68

C658

100PF

L601

1UF/16V

C649

R639

10

6.8NF

C654

R633

10K

OUT1

OUT2

6

R647

NC

6.8nH

L613

U604

B4121

1

G1

G2

3
5

G3

IN

2

4

82nH

L600

GND

2

OUT

3

VC

1

4

VCC

120

U613

TCO-9131B(13MHz)

R648

C.OUT

1

2

GND

4

IN

3

OUT

DCS214E-1747

U609

47

C601

1NF

R606

10NF

C673

68

R631

R636

2.2K

39nH

L605

C695

8PF

ANTENNA

A1

10NF

C600

100PF

C681

L607

NC

10K,1%

R618




4

5

6

7

8

CRB2A4E100JT

R642

GSM_RX

7

GSM_TX

4

VC1

VC2

14

11

VC3

3.3PF

C639

G
G

5
6

G
G

8
10

G
G

12
15

G
G

17

9

SHS-L090DE

U602

ANT

2

DCS_RX

16

DCS_TX

13

G

1

18

G

3

3PF

10K

R641

C625

C671

10NF

27PF

R630 150,1%

C682

27PF

C675

L623

39nH

C663

560PF

4.7nH

L632

220uF/6.3V

R651

10K,1%

C632

C604

NC

C672

560PF

R617

10K,1%

C637

33PF

C646

33PF

R624

15K,1%

R650

100PF

C657

2K

2.2nH

L617

C613

1NF

1NF

C699

L602

NC

C620

1NF

R637

10K

R611

36K

C680

27PF

C676

10NF

C623

1NF

C645

27PF

C622

270PF

47PF

C661

R654

0

68

R629

SENB

17

VDDD

24

VDDI

11

VDDR

XIN

15

6.8nH

L618

PWDNB

6

RFLA

5

RFLB

3

RFLC

2

RFLD

10

RFOUT

26

SCLK

27

SDAT

25

GNDR

19

IFLA

20

IFLB

23

IFOUT

NC

1

8

NC

14

NC

NC

21

13

AUXOUT

29

GND

16

GNDD

18

GNDD

22

GNDI

4

GNDR

7

GNDR

9

GNDR

28

SI4133-MLP28

U612

12

C643

2PF

G3

6

G4

1

IN

2

OUT

1K

R634

U600

CRS5001-1702

3

G1

4

G2

5

C636

1NF

L615

2.2nH

C630

390PF

C655

C606

47PF

NC

C624

0.5PF

1NF

3.9K

R640

C670

180

100PF

C666

L620

33nH

R646

NC

C608

L604

68nH

10K

R635

9

PS

RFIN1

11

RFIN2
14

20

VAPC1

VAPC2

19

VCC1

24

7

VCC2

1

NC

6

NC

8

NC

NC

12

NC13

NC16

17

NC

NC

23

4

AMPO

2

DACIN

15

GND1

GND2

10

22

IN+

18

IN2-

21

INI-

5

MODESW

4

OUT

U611

HD155173NP

3

AMPIB

1

G

3

G

5

G

7

G

IN

6

8

IN

OUT

2

46

G3

G4

81

0

G5

G7

12

GSMOUT

1

GSMVCC

11

SW

3

9

VT

MKFC225.000MBA701X-TC11

U601

1NF

ENFVF1ENFVF1

U610

5

DCSOUT

7

DCSVCC

2

G1

G2

R626

C664

C678

22K,1%

L635

4.7nH

100PF

2

B1

5

B2

6

C1

3

C2

1

E1

4

E2

IN

3

OUT

RN4985-TE85L

Q602

U607

DCS214E-0897

C.OUT

1

2

GND

4

68

R621

8.2nH

L603

24

IN

1

OUT

3

NFM39R12C471T1

F600

8PF

C603

R632

68

1NF

C616

2

B1

5

B2

6

C1

3

C2

1

E1

4

E2

1NF

C648

Q601

RN4985-TE85L

R614

EXB24AT4AR

GND

1

GND

2

4

IN

3

OUT

C628

27PF

C679

100PF

330PF

C650

NC

C631

R627

47

33nH

L630

L608

82nH

R616

100

C609

8PF

B4133

U606

G1

1
3

G2
G3

5

2

IN

OUT1

4

6

OUT2

C689

2.2PF

1.5PF

R623

220

2

3

1

C629

DTC114YE

Q603

560PF

C674

10nH

L616

R655

0

390PF

C653

C605

10PF

C612

1NF

C642

10NF

L634

22nH

EXB24AT4AR

R613

GND

1

GND

2

4

IN

3

OUT

1NF

100PF

C619

C667

C638

100PF

10PF

C602

R656

NC

C684

33PF

100PF

C618

5.6pF

C607

10UF

C635

150PF

C617

6.3V

51

R653

6.8nH

VC1

VC3

3VTXRX

L619

SYNEN1

VC1

VC2

RXEN1

TXEN2

3VTXEN1

AFC

VC1

VC2

3VTXRX

TXPOWER

+VBATT

BANDSEL

VC3

3VSYNTH

3VTXRX

BANDSEL

ITXP

SDATA

SCLK

AGC_EN

RXEN2

TXEN1

IFLO

3VTXRX

QTXP

QTXN

3VTXRX

RFLO

IRXN

IRXP

QRXP

QRXN

ITXN

XVCC

CLK13M

SCLK

SDATA

RFLO

IFLO

Содержание SGH-N288

Страница 1: ...RVICE DUAL BAND Mobile Cellular Phone SGH N288 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 trouble shooting ...

Страница 2: ...Samsung Electronics Co Ltd Printed in Korea 05 2001 Rev 5 1 GH68 02032A ELECTRONICS ...

Страница 3: ...CB 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 trouble shooting 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 Alert tone 5 9 Ring Indicator 5 10 Back Light 5 11 GS...

Страница 4: ...ed Views and Parts List 1 1 Main SGH N288 1 2 3 5 6 7 4 8 9 1 1 1 2 1 4 1 5 1 6 1 8 13 1 17 5 17 6 17 7 17 1 17 2 17 3 1 10 1 10 1 1 9 1 3 1 7 1 1 3 1 1 4 1 1 1 1 1 2 1 1 5 1 10 2 1 10 3 13 2 13 4 13 3 10 11 15 16 12 14 19 13 18 21 20 22 23 17 ...

Страница 5: ... GH72 02108A 6001 000464 GH42 00092A GH73 00660A GH68 01641A GH43 00303A GH43 00304A FRONT ASSÕY FLIP ASSÕY BADGE FLIP COVER MARGNETIC LABEL FLIP BADGE i FACE KEY VOLUME KEY TOP DUMMY TAPE TOP FRONT COVER HINGE SPEAKER SPONGE SPK WINDOW ASSÕY SPONGE LCD WINDOW LCD TAPE LCD MOBILE CAP KEY MAIN KEY PCB BUZZER RUBBER BUZZER SHEET SUPPORT BUZZER MIC RUBBER SUPPORT MIC SPONGE MIC FRAME KEY SUPPORT LCD ...

Страница 6: ...106D GH68 00913B GH68 00913E GH68 00913F GH68 00913G COLOR ITEM FRONT ASSÕY FLIP ASSÕY FRONT COVER FLIP COVER LABEL FLIP L GREY D GREY GH73 00678A GH73 00678B GH73 00660A GH73 00660B GH73 00582A GH73 00582B GH72 02108A GH72 02108B GH42 00092A GH42 00092B COLOR ITEM COVER CONNECTOR REAR CAP EAR JACK LOCKER ANTENNA L GREY D GREY GH75 00933A GH75 00933B GH72 02107A GH72 02107B GH43 00303A GH43 00303B...

Страница 7: ...1 4 Exploded Views and Parts List 1 4 Travel Adapter Parts List TYPE SEC CODE REMARK A GH44 00171A CHINA B GH44 00184A EUROPE 1 3 Travel Adapter A B ...

Страница 8: ...Exploded Views and Parts List 1 5 Cigar Light Adapter 1 5 1 6 Cigar Light Adapter Parts List DESCRIPTION SEC CODE REMARK Ciger Light Adapter Code GH44 00170A BLACK ...

Страница 9: ...Exploded Views and Parts List 1 6 1 7 Test Jig TEST JIG GH80 10508A TEST JIG CABLE GH39 00079A RF JIG CABLE GH39 00089A ...

Страница 10: ...Exploded Views and Parts List 1 7 DM CABLE GH39 00080A 1 7 1 Test Jig 8922 or 8960 WIRELESS COMMVNCATIONS TEST SET TEST JIG DC POWER SUPPLY RF JIG CABLE TEST JIG CABLE 232 CABLE ...

Страница 11: ...1 8 Exploded Views and Parts List 1 8 Wearable EAR Microphone Wearable EAR Microphone GH59 00168A 1 9 Data Kit DATA KIT GH39 00078A ...

Страница 12: ...Exploded Views and Parts List 1 9 1 10 Desk Top Charger DESK TOP CHARGER GH44 00186B ...

Страница 13: ...PCB Diagrams 2 1 2 PCB Diagrams 2 1 Main Top ...

Страница 14: ...2 2 PCB Diagrams 2 2 Main Bottom ...

Страница 15: ...RAMIC CHIP 0 33nF 5 C1608CG1H331JT 19 C226 2203 000679 C CERAMIC CHIP 0 027nF 5 CM05CG270J50AT 20 C227 2203 003054 C CERAMIC CHIP 0 009nF 0 C1005CG1H090CT 21 C237 2203 000679 C CERAMIC CHIP 0 027nF 5 CM05CG270J50AT 22 C238 2203 000679 C CERAMIC CHIP 0 027nF 5 CM05CG270J50AT 23 C239 2203 000812 C CERAMIC CHIP 0 033nF 5 CM05CG330J50AT 24 C300 2203 005061 C CERAMIC CHIP 100nF 80 MCH153F104ZK 25 C400 ...

Страница 16: ...7 C638 2203 000233 C CERAMIC CHIP 0 1nF 5 5 CM05CG101J50AT 58 C655 2203 000836 C CERAMIC CHIP 390pF 10 CM05X7R391K50AT 59 C657 2203 000233 C CERAMIC CHIP 0 1nF 5 5 CM05CG101J50AT 60 C658 2203 000233 C CERAMIC CHIP 0 1nF 5 5 CM05CG101J50AT 61 C664 2203 000438 C CERAMIC CHIP 1nF 10 50 CM05X7R102K20AH 62 C670 2203 000438 C CERAMIC CHIP 1nF 10 50 CM05X7R102K20AH 63 C673 2203 000254 C CERAMIC CHIP 10nF...

Страница 17: ...5 1 16W D TSR16GJ104V 100 R301 2007 000162 R CHIP 100Kohm 5 1 16W D TSR16GJ104V 101 R302 2007 000148 R CHIP 10Kohm 5 1 16W DA TSR16GJ103 102 R303 2007 000148 R CHIP 10Kohm 5 1 16W DA TSR16GJ103 103 R304 2007 000148 R CHIP 10Kohm 5 1 16W DA TSR16GJ103 104 R305 2007 000148 R CHIP 10Kohm 5 1 16W DA TSR16GJ103 105 R306 2007 000148 R CHIP 10Kohm 5 1 16W DA TSR16GJ103 106 R400 2007 000148 R CHIP 10Kohm ...

Страница 18: ... 5 1 16W DA TSR16GJ102V 136 R635 2007 000148 R CHIP 10Kohm 5 1 16W DA TSR16GJ103 137 R636 2007 000141 R CHIP 2 2Kohm 5 1 16W D TSR16GJ222V 138 R637 2007 000148 R CHIP 10Kohm 5 1 16W DA TSR16GJ103 139 R641 2007 000148 R CHIP 10Kohm 5 1 16W DA TSR16GJ103 140 R650 2007 000137 R CHIP 2Kohm 5 1 16W DA TSR16GJ202V 141 R651 2007 007142 R CHIP 10Kohm 1 1 16W DA ERJ2GEF103X 142 R654 2007 007771 R CHIP 0OHM...

Страница 19: ...uF 20 6 3V TAJR106M006R 20 C124 2203 005061 C CERAMIC CHIP 100nF 80 MCH153F104ZK 21 C125 2203 005065 C CERAMIC CHIP 1000nF 80 CL10F105ZONC 22 C126 2203 000254 C CERAMIC CHIP 10nF 10 1 CM05X7R103K16AT 23 C127 2203 005065 C CERAMIC CHIP 1000nF 80 CL10F105ZONC 24 C131 2404 001231 C TA CHIP 47uF 20 6 3V G 595D476X06R3A2T 25 C209 2203 000679 C CERAMIC CHIP 0 027nF 5 CM05CG270J50AT 26 C306 2203 005061 C...

Страница 20: ...8nF 5 CM05CG080D50AT 62 C605 2203 000278 C CERAMIC CHIP 0 01nF 0 5 CM05CG100D50AT 63 C606 2203 000995 C CERAMIC CHIP 0 047nF 5 CM05CG470J50AT 64 C607 2203 005450 C CERAMIC CHIP 0 0056nF GRM36COG5R6B50PT 65 C609 2203 001259 C CERAMIC CHIP 0 008nF 5 CM05CG080D50AT 66 C612 2203 000438 C CERAMIC CHIP 1nF 10 50 CM05X7R102K20AH 67 C613 2203 000438 C CERAMIC CHIP 1nF 10 50 CM05X7R102K20AH 68 C614 2203 00...

Страница 21: ...R561K50PT 104 C674 2203 002525 C CERAMIC CHIP 0 56nF 10 GRM36X7R561K50PT 105 C675 2203 000679 C CERAMIC CHIP 0 027nF 5 CM05CG270J50AT 106 C676 2203 000254 C CERAMIC CHIP 10nF 10 1 CM05X7R103K16AT 107 C677 2203 000233 C CERAMIC CHIP 0 1nF 5 5 CM05CG101J50AT 108 C678 2203 000233 C CERAMIC CHIP 0 1nF 5 5 CM05CG101J50AT 109 C679 2203 000233 C CERAMIC CHIP 0 1nF 5 5 CM05CG101J50AT 110 C681 2203 000233 ...

Страница 22: ...INDUCTOR SMD 22nH 5 1x0 HK1005 22NJ T 146 L635 2703 001949 INDUCTOR SMD 4 7nH 10 1 HK1005 4N7K T 147 M100 4302 001119 BATTERY LI 2ND 3V 0 1MAH ML414R TT33 148 OSC500 2801 003856 CRYSTAL SMD 0 032786MHz 2 MC 146 149 Q200 0501 002011 TR SMALL SIGNAL 2SD2114K 2SD2114KT146V 150 Q303 0501 002346 TR SMALL SIGNAL 2SB1427 P 2SB1427 E T100 151 Q500 0501 002011 TR SMALL SIGNAL 2SD2114K 2SD2114KT146V 152 Q60...

Страница 23: ...IP 47Kohm 5 1 16W DA TSR16GJ473V 188 R530 2007 002796 R CHIP 510ohm 5 1 16W DA TSR16GJ511V 189 R531 2007 000139 R CHIP 220ohm 5 1 16W DA TSR16GJ221V 190 R538 2007 007981 R CHIP 180Kohm 1 1 16W D ERJ2RKF1803X 191 R541 2007 007488 R CHIP 75Kohm 1 1 16W D RK73H1ETP7502F 192 R542 2007 000170 R CHIP 1Mohm 5 1 16W DA TSR8GJ105V 193 R544 2007 000170 R CHIP 1Mohm 5 1 16W DA TSR8GJ105V 194 R545 2007 000170...

Страница 24: ...TOR 2985 LP2985AIBPX 3 0 230 U111 0505 001423 FET SILICON FDG6323L N P FDG6323L 231 U112 1203 002160 IC VOLTAGE REGULATOR 2981 LP2981AIBPX 3 3 232 U303 1203 002127 IC BATTERY 1734 SOT 23 6P LTC1734ES6 4 2 TR 233 U304 1203 001903 IC DC DC CONVERTER 1986 S LTC1986ES6 234 U400 1106 001301 IC SRAM 1337 262Kx16Bit C LRS1337 235 U407 1203 001511 IC RESET 809 SOT 23 3P TCM809RENB713 236 U501 1205 001881 ...

Страница 25: ...A 1x0 5x0 VC040214X300 258 V221 1405 001093 VARISTOR 14V 20A 1x0 5x0 VC040214X300 259 V491 1405 001082 VARISTOR 5 6V 20A 1x0 5x0 VC040205X150R 260 V501 1405 001082 VARISTOR 5 6V 20A 1x0 5x0 VC040205X150R 261 V503 1405 001082 VARISTOR 5 6V 20A 1x0 5x0 VC040205X150R 262 V504 1405 001082 VARISTOR 5 6V 20A 1x0 5x0 VC040205X150R 263 V505 1405 001082 VARISTOR 5 6V 20A 1x0 5x0 VC040205X150R 264 ZD202 040...

Страница 26: ...V3LDO RTC_3V3 LDO AVcc LDO Vcc LDO Serial Data Interface I O Interface A D Interface AGC AFC PLL DC DC CONVERTER Charging Circuit Li Ion Battery Slim Standard ONE C VIBRATOR SYSTEM CLOCK 13MHz SRAM FLASH EEPROM RTC_CLOCK 32 768KHz KEY_BOARD SIM CARD SPEAKER MIC BB INTERFACE RF INTERFACE Charging Current LCD BUZZER ...

Страница 27: ...I Q Mod GSM 270MHz DCS 135MHz Phase Detector Loop filter GSM 270MHz DCS 135MHz VP40575 U501 880 915MHz 1710 1785 MHz Tx Dual VCO U610 Mixer 2 Serial data interface 45MHz 270MHz v 2 GSM 1150 1185MHz DCS 1580 1655MHz IRXP IRXN QRXP QRXN I Q Demo SCLK SDATA AGC_EN bias circuit Mixer 1 RF VCO v 2 Rx SAW filter 540MHz GSM 1150 1185MHz DCS 1575 1650MHz CH 62 947 4MHz CH 698 1842 2MHz CH 62 902 4MHz CH 6...

Страница 28: ...XN QTXP QTXN Loop Filter TX VCO U610 Dual PAM U608 APC IC U611 890 915 MHz 1710 1785 MHz Coupler 15 9 4 4 3 3 U607 U609 1 1 13 7 2 540 MHz PCN 1575 1650 MHz Tx GSM 1150 1185 MHz 4 14 11 4 5 38 35 20 19 18 17 30 47 5 1 8 1 4 2 3 2 19 20 Ant S W Control Circuit 3VTX TXEN2 VC1 VC2 VC3 VC3 VC2 VC1 GSM Tx DCS Tx Rx H H H L L L L L L 11 SI4133 MLP28 U612 VCTCXO 13MHz U613 IF VCO 1080MHz PLL1 PLL2 RF VCO...

Страница 29: ...MHz Mixer 2 PGA I Q Demod Mixer 1 Mixer 1 LC Filter 45MHz 1 2 30 47 9 16 5 7 3 1 2 8 4 6 4 6 53 54 2 3 49 50 6 8 2 4 40 41 27 SDATA SCLK SYNEN1 46dBm 947 067 MHz 50dBm 1842 467 MHz 47dBm 30dBm 33dBm 38dBm 52dBm 43dBm 9dBm 1172 MHz 9 5dBm 1617 4 MHz GSM 1150 1185 MHz PCN 1580 1655 MHz Rx 8dBm 540 MHz 24 4dBm G 29dBm D 224 933 MHz 31dBm G 35dBm D 22dBm G 25dBm D 45 067 MHz 50dBm G 54dBm D 67 kHz 26 ...

Страница 30: ...han 3 2V No Yes Yes Check U100 and the path from VBATT to M100 The node between D100 and M100 3V No Yes U106 pin 1 4 10 3 2V Check the circuit related to U106 No END Yes Check the initial operation U102 U105 pin3 3V Check U102 U105 and related circuit No Check for the clock signal at R646 Check the clock generation circuit related to U613 and Q604 No Yes Yes ...

Страница 31: ...T C113 1UF U105 LP2985AIBPX 3 0 GND 1 N C 2 5 RB414_II06N M100 GND 2 1 VCC C128 330NF 1UF C127 100NF C130 C121 6 3V 10UF C100 2 5 ON _OFF VIN 4 3 VOUT 27PF LP2981AIBPX 3 3 U100 1 GND N C 6 3V 10UF C108 10NF C109 C111 N C 2 5 ON _OFF VIN 4 3 VOUT 6 3V 100UF VCC LP2985AIBPX 3 0 U102 1 GND C131 47uF 6 3V C110 10UF 6 3V R100 200 47uH L100 10UF C112 CRS04 TE85L D101 MCL4154 D100 C119 10NF C122 1UF AVCC...

Страница 32: ... END No U401 pin 4 H The node between R505 and C509 H RST No Check U407 R509 H BOOT No Resolder R509 Yes Yes R526 H MSIZE No Resolder R526 Yes R528 L EXTPROC No Resolder R528 Yes Replace PBA Check all the other connection by Test S W Check the circuit around LCD Check the circuit around U504 EEPROM and data stored in it ...

Страница 33: ...5 4 Flow chart of trouble shooting U108 U407 U401 U400 VCC VCC R505 C509 R509 C526 R400 VCC SIM5V3V SIMPWDN_BOOT F_WP F_WP 6 4 F_BE0 F_BE1 F_VCCW SYSRST GPIO3 GPIO4 DTR1 ...

Страница 34: ...ging Part Abnormal charging part Replace TA Check the CN220 pin 1 2 5 2V No Yes Yes Check the U303 pin 3 5 2 V Resolder C209 V208 C316 Yes No U303 pin 4 L Resolder R328 Yes No Resolder components around U303 Check the U303 pin 5 4 2V END Yes No ...

Страница 35: ...le shooting LTC1734ESE 4 2FTR R326 2 7k 1 C317 10UF 0 3V R320 82k 1 R323 100k 1 C315 100NF VBATT BAT_VOLT ICHRG 3 2 1 C303 25B1427 E T100 U303 1 CS16 10UF 10V DCVOLT CHG_ON LON Y OFF 2 3 6 5 4 INENSE DRIVE VENSE PROG GND VCC ...

Страница 36: ...01 pin3 7 3V Replace U300 Resoldering CN301 and check open connection from U300 to CN301 Yes Yes No No After Power ON Check SIMCLK Signal on CN301 pin 1 in a few second After SIM card insert CN301 pin 2 H SIMRST Replace the PBA Replace the PBA Yes Yes No No Check the circuit around U504 Serial EEPROM and data stored in it Yes Phone can t access SIM card Yes ...

Страница 37: ... VOUT 1 LTC1986ES6 U304 VCC C302 10NF 1UF C320 SIMVCC C322 10UF 6 3V 750K R332 ON OFF 5 6 R1 C1 1 R2 V C1 1 2 V C1 2 3 VIN R1 4 FDG6323L U300 C333 100NF 1M R331 R306 10K 6 7 7 8 8 ID1A 6S 2 54SF CN301 1 1 2 2 3 3 4 4 5 5 6 SIMCLK SIMDATA SIMALIM SIM_5V3V SIMPWDN_BOOT SIMRST ...

Страница 38: ...er CN211 pin 16 17 Check the connection from CN211 pin 16 17 U502 U503 pin 2 AVCC 3 0V Check the circuit from U501 to U502 U503 Check the circuit related to U105 END Resolder the R525 R527 R530 R531 C553 C532 and C538 Yes No Yes Yes Yes No No Check the Key PCB Replace the Key PCB No Yes ...

Страница 39: ...5 10 Flow chart of trouble shooting CN211 17 16 U502 C227 C239 U503 AVCC AVCC C532 C538 R527 R531 R525 R530 U501 ...

Страница 40: ...5 11 Flow chart of trouble shooting 5 6 Speaker Part Speaker does not work Modify the SPK pins Check the depression of the SPK pins Is Speaker working Replace the Speaker END No Yes Yes Yes No ...

Страница 41: ...nput Check Initial operation Replace the PBA Are the pin 7 8 9 and 10 of CN211 low When one of the keys is pushed one of pin 7 8 9 and 10 of CN211 is high Key PCB is OK Resolder pin 7 8 9 and 10 of CN211 END Replace the Key PCB Yes No Yes Yes Yes No No ...

Страница 42: ...Test S W Is there alert wave form on the R539 during alert tone test Is there alert wave form on the Q500 pin 3 during alert tone test U100 pin 3 3 3V Check the circuit related to Q500 END Check the circuit related to U100 Yes No Yes Yes No No Buzzer is ok Change the Buzzer Yes No ...

Страница 43: ...5 14 Flow chart of trouble shooting 1 3 Q500 2SD2114KT146V C546 100NF D501 DAN222TL R539 4 7K from IC R543 100K BUZ RTC_3V3 2 1 2 3 ...

Страница 44: ...art of trouble shooting 5 15 5 9 Ring Indicator Ring Indicator LED does not work GPO2 by Test S W Q204 pin 2 H Between LED208 and R215 L Check the LED Replace LED208 END Resolder R215 Q204 Yes No Yes Yes No No ...

Страница 45: ...5 16 Flow chart of trouble shooting RN1102 2 3 1 Q204 LED208 CL 150YG CD T R215 220 VBATT RI_LIGHT ...

Страница 46: ...n the menu Between R211 and R212 H GPO1 by test S W No Yes Yes No Check the circuit related U112 LED209 Pin 1 3 3V LCD backlight on Resolder LED209 or Check Q200 No Yes No LCD BACKLIGHT KEY PCB LED Resolder R211 R212 Q200 pin 1 H No Yes Resolder Q200 Q200 pin 3 L No Yes Yes END Key PCB LED on Resolder CN211 or Replace Key PCB No ...

Страница 47: ...heck IF connector resolder Resolder U602 Pin 9 Check VC1 L VC2 L VC3 H Resolder U603 Resolder U605 C695 C629 C625 L630 L613 Resolder U604 L605 L621 L622 L623 Check C601 CH 225MHz C636 540MHz Resolder U612 Resolder U601 C603 C607 C609 L604 U605 Pin 24 25 26 27 Resolder OneC U501 U605 Check U605 Resolder U605 Pin32 33 35 Resolder U501 No No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes ...

Страница 48: ...solder U607 C611 Resolder of Change C646 R613 Resolder or Change U610 At 1080MHz U612 At CH 270MHz Resolder U605 U612 U605 Pin 17 18 19 20 Resolder OneC U501 Check U605 Resolder U605 Pin35 38 Resolder U501 No No No No No No No No No Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Check Ant S W Control Circuit Check U608 VBATT Pin 2 APC OK Resolder or Change U608 Yes Check VBATT or APC Control No ...

Страница 49: ...heck IF connector resolder Resolder U602 Pin 16 Check VC1 L VC2 L VC3 H Resolder U603 Resolder U605 L615 L618 L619 C639 C643 C689 Resolder U606 L631 L632 L634 Check C601 CH 225MHz C636 540MHz Resolder U612 Resolder U601 L604 C603 C607 C609 U605 Pin 24 25 26 27 Resolder OneC U501 U605 Check U605 Resolder U605 Pin32 33 35 Resolder U501 No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Ye...

Страница 50: ...U602 Resolder U609 C606 Resolder or Change C647 R614 Resolder U610 At 1080MHz U612 At CH 135MHz Resolder U605 U612 U605 Pin 17 18 19 20 Resolder OneC U501 Check U605 Pin 35 Pin 38 Resolder U605 Pin35 38 Resolder U501 No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Check Ant S W Control Circuit Check U608 VBATT Pin 2 APC OK Resolder or Change U608 Yes Check VBATT or APC Contro...

Страница 51: ...C632 C604 NC C672 560PF R617 10K 1 C637 33PF C646 33PF R624 15K 1 R650 100PF C657 2K 2 2nH L617 C613 1NF 1NF C699 L602 NC C620 1NF R637 10K R611 36K C680 27PF C676 10NF C623 1NF C645 27PF C622 270PF 47PF C661 R654 0 68 R629 SENB 17 VDDD 24 VDDI 11 VDDR XIN 15 6 8nH L618 PWDNB 6 RFLA 5 RFLB 3 RFLC 2 RFLD 10 RFOUT 26 SCLK 27 SDAT 25 GNDR 19 IFLA 20 IFLB 23 IFOUT NC 1 8 NC 14 NC NC 21 13 AUXOUT 29 GN...

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