Samsung SGH-S720i Manual de usuario

GSM TELEPHONE

SGH-S720i

GSM TELEPHONE CONTENTS

1. Specification

2. Exploded View and Parts list

3. Chart of Troubleshooting

4. Array course control

5. Block Diagrams

6. PCB Diagrams

7. MAIN Electrical Parts List

8. Reference data

9. Safety Precautions

10. Product Function

Contents

1. Specification

1-1. GSM General Specification .......................................................................................1-1

1-2. GSM TX power class ...............................................................................................1-2

2. Exploded View and Parts list

2-1. Cellular phone Exploded View ..................................................................................2-1

2-2. Cellular phone Parts list ............................................................................................2-2

2-3. Disassembly ...............................................................................................................2-9

2-4. Assembly ..................................................................................................................2-11

3. ChartofTroubleshooting

3-1. Baseband ............................................................................................................3-1

3-1-1. Power ON .....................................................................................................3-1

3-1-2. System Initial ................................................................................................3-5

3-1-3. SIM Part .......................................................................................................3-8

3-1-4. Charging Part .............................................................................................3-10

3-1-5. Microphone Part .........................................................................................3-12

3-1-6. Speaker Part ..............................................................................................3-15

3-1-7. Camera Part ..............................................................................................3-18

3-1-8. LCD .............................................................................................................3-21

3-2. RF ......................................................................................................................3-13

3-2-1. EGSM Rx ...................................................................................................3-23

3-2-2. DCS Rx ......................................................................................................3-24

3-2-3. PCS Rx ......................................................................................................3-25

3-2-4. EGSM Tx ...................................................................................................3-27

3-2-4. DCS &PCS Tx .........................................................................................3-28

3-2-6. BLUETOOTH ..............................................................................................3-30

Contents

4. Array course control

4-1. Downloading Binary Files ......................................................................................4-2

4-2. Pre-requsite for Downloading ................................................................................4-2

4-3. S/W Downloader Program .....................................................................................4-3

5. Block Diagrams

6. PCB Diagrams

7. MAIN Electrical Parts List

8. Reference data

8-1. Reference Abbreviate ..............................................................................................8-1

9. Safety Precautions

9-1. Repair Precaution ......................................................................................................9-1

9-2. ESD(Electrostaically Sensitive Devices) Precaution ................................................9-2

10. Product Function

SAMSUNG Proprietary-Contents may change without notice

1. Specification

1-1

This Document can not be used without Samsung's authorization

1-1. GSM General Specification

GSM900

Phase 1

EGSM 900

Phase 2

DCS1800

Phase 1 PCS1900

Freq. Band[MHz]

Uplink/Downlink

890~915

935~960

880~915

925~960

1710~1785

1805~1880

1850~1910

1930~1990

ARFCN range 1~124 0~124 &

975~1023 512~885 512~810

Tx/Rx spacing 45 MHz 45 MHz 95 MHz 80 MHz

Mod. Bit rate/

Bit Period

270.833 kbps

3.692 us

270.833 kbps

3.692 us

270.833 kbps

3.692 us

270.833 kbps

3.692 us

Time Slot

Period/Frame

Period

576.9 us

4.615 ms

576.9 us

4.615 ms

576.9 us

4.615 ms

576.9 us

4.615 ms

Modulation 0.3 GMSK 0.3 GMSK 0.3 GMSK 0.3 GMSK

MS Power 33 dBm~13 dBm 33 dBm~5 dBm 30 dBm~0 dBm 30 dBm~0 dBm

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

Sensitivity -102 dBm -102 dBm -100 dBm -100 dBm

TDMA Mux 8 8 8 8

Cell Radius 35 Km 35 Km 2 Km -

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Specification

1-2

This Document can not be used without Samsung's authorization

1-2. GSM TX power class

TX Power

control level GSM900

533±2

dBm

631±2

dBm

729±2

dBm

827±2

dBm

925±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 level DCS1800

030±3

dBm

128±3

dBm

226±3

dBm

324±3

dBm

422±3

dBm

520±3

dBm

618±3

dBm

716±3

dBm

814±3

dBm

912±4

dBm

10 10±4 dBm

11 8±4 dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

TX Power

control level PCS1900

030±3

dBm

128±3

dBm

226±3

dBm

324±3

dBm

422±3

dBm

520±3

dBm

618±3

dBm

716±3

dBm

814±3

dBm

912±4

dBm

10 10±4 dBm

11 8±4 dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

SAMSUNG Proprietary-Contents may change without notice

2. Exploded View and Parts List

2-1

This Document can not be used without Samsung's authorization

2-1. Cellular phone Exploded View

QFU01

QRF03

QVO01

QCR05

QBA00

QCR61

QCR71

QKP02

QMO01

QSP01

QCA01

QLC01

QME02

QMP02

QFL01

QHI02

QHI01

QCR05

QSC05

QBA01

QCR05

QRE01

QCK02

QSD01

QAN02

QSD07

QSH01

QAN12

QMI03

QMI01

QMP01

QME01

QCR05

QPC01

QKP01

QFR02

QKP01QKP01QKP01

QFR01 QFL01 QFR02

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Main Electrical Parts List

2-2

This Document can not be used without Samsung's authorization

Design LOC Discription STATUS

QAN02 　INTENNA-SGHS720I GH42-01281A

QAN12 　ASSY-CUSHION-INTENNA CONTACT RGH98-00966A

QBA00 　PMO-COVER BATTERY GH72-38382A

QBA01 　INNER BATTERY PACK-800MAH,BLK, GH43-02644A

QCA01 　UNIT-CAMERA,S720I GH59-04352A

QCK02 　PMO-KEY POWER GH72-38379A

QCR05 　SCREW-MACHINE 6001-001478

QCR71 　SCREW-MACHINE 6001-002095

QFU01 　ASSY CASE-SLIDE UPPER GH98-04049A

QKP01 　ASSY KEYPAD-MAIN(XEF/SB) GH98-04140A

QKP02 　ASSY KEYPAD-SUB(XEF/SB) GH98-04141A

QLC01 　ELA UNIT-SGHX530 LCD MODULE GH96-02314A

QME01 　DOME SHEET-TF DOME SHEET 12 KE GH59-04351A

QME02 　AS-NAVY DOMESHEET SVC,S720I GH81-06671A

QMO01 　MOTOR DC-SGHS720I GH31-00334A

QMP01 　PBA MAIN-SGHS720I GH92-03514A

QMP02 　ASSY ETC-LCD SUB PBA GH59-04356A

QPC01 　MEA-SLIDE FPCB KIT GH97-07781A

QSC05 　RMO-LOWER COVER SCREW CAP GH73-09431A

QSD07 　ASSY ETC-SIM SOCKET FPCB,S720I GH59-04362A

QSH01 　ASSY CASE-SHELDE CAN GH98-04302A

QSP01 　SPEAKER 3001-002144

QVO01 　PMO-KEY VOLUME GH72-38378A

QMI01 　MICROPHONE-ASSY-SGH-S720I GH30-00360A

　QMI03 AS-MIC HOLDER SVC.S720I GH81-06664A

QFR01 　ASSY CASE-FRONT SLIDE LOWER GH98-05614A

QCR61 　SCREW-MACHINE 6001-002008

QFL01 　ASSY CASE-SLIDE LOWER GH98-04054A

QFR02 　ASSY CASE-SLIDE FRONT GH98-04055A

QHI01 　ASSY CASE-HINGE MODULE GH98-04300A

　QHI02 ASSY HINGE-LINK GH98-05837A

QRE01 　ASSY CASE-SLIDE REAR GH98-04056A

　QSD01 PMO-COVER SD GH72-38380A

　QRF03 PMO-COVER EAR GH72-38381A

2-2. Cellular phone Parts list

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Main Electrical Parts List

2-3

This Document can not be used without Samsung's authorization

Discription STATUS

BAG PE 6902-000297

ADAPTOR-SGHE690,BLK,EU,A_TYPE GH44-01361A

EARPHONE-EARPHONE,20P,B-TYPE GH59-03883A

LABEL(R)-WATER SOAK GH68-09361A

LABEL(R)-MASTER_FANCE_BOG GH68-13691B

MANUAL USERS-BOG FRENCH GH68-14582A

LABEL(R)-MAIN XEF GH68-15299G

BOX(P)-UNIT MAIN(EU) GH69-05581A

CUSHION-CASE(EU) GH69-05587A

MPR-REMOVE TAPE LCD GH74-13804A

MPR-SUB CON INSLATION GH74-15319A

MPR-TAPE PCB ESD 1GH74-15507A

MPR-GASKET PCB CGH74-18278A

MPR-TAPE MAIN FPCB GH74-20124A

MPR-INSU TAPE GH74-28241A

MPR-TAPE SHEET EARJACK GH74-31132A

MPR-TAPE SHEET SD GH74-31134A

VINYL-BOHO MAIN KEY GH74-32384A

VINYL-BOHO MP3 DGH74-32937A

TAPE-SHIELD CAN CON GH74-33006A

TAPE GH74-33007A

TAPE GH74-33341A

AS-SUB DOME SHEET TAPE SVC,S72 GH81-06672A

AS-ELEC TAPE LCD MODULE SVC,S7 GH81-06673A

AS-TAPE LCD BOT SVC,S720I GH81-06674A

SAMSUNG Proprietary-Contents may change without notice

Main Electrical Parts List

2-4

This Document can not be used without Samsung's authorization

2-3. Disassembly

1) Remove the VOLUME, POWER KEY.

2) Disconnect the SIM CONNECTOR.

1) Unscrew the 4point REAR Screws.

2) Extract the IF COVER.

※Caution

1) Be careful not to scratch the appearance.

1) Remove the ①② tapes of Rear.

2) Dissolve the READ LOCKER.

※Caution

1) Be careful not to scratch the appearance or

damage the framework.

1) Unlock the MAIN B'D LOCKER of lower part

first, then unlock the other part.

※Caution

1) The slide should be open when dissolving the

MAIN PBA.

2) Be careful not to cut off the slide FPCB when

dissolving the MAIN PBA.

①

②

③④

①

③

①

②

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Main Electrical Parts List

2-5

This Document can not be used without Samsung's authorization

5 6

1) Dissolve the MAIN PBA from the main frame.

※Caution

1) Take precaution not to cut off the slide FPCB.

1) Remove the protection tape.

2) Remove the left and right SOLDER, then

dissolve the F-PCB.

※Caution

1) Take precaution not to cut off the slide FPCB.

7 8

1) Unscrew the 4point SCREWs.

※Caution

1) Be careful not to scratch the appearance.

1) Unlock the LOCKER in numerical order from ①

to ④.

※Caution

1) Take precaution not to damage the F-PCB.

①

②

①

②

③

④

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