Samsung SGH-U300 User manual

GSM TELEPHONE

SGH-U300

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

This Service Manual is aproperty of Samsung Electronics Co.,Ltd.

Any unauthorized use of Manual can be punished under applicable

International and/or domestic law.

Samsung Electronics Co.,Ltd.

2007. 05. Rev.1.0

ⓒ

Country Web Site

North America service.samsungportal.com

Latin America latin.samsungportal.com

CIS cis.samsungportal.com

Europe europe.samsungportal.com

China china.samsungportal.com

Asia asia.samsungportal.com

Mideast &Africa mea.samsungportal.com

GSPN (Global Service Partner Network)

Contents

1. Specification

1-1. GSM/CDMA 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 ...............................................................................................................2-4

2-4. Assembly ....................................................................................................................2-8

3. ChartofTroubleshooting

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

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

3-1-2. System Initial ................................................................................................3-6

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

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

3-1-5. Microphone Part .........................................................................................3-13

3-1-6. Speaker Part ..............................................................................................3-16

3-1-7. Receiver Part .............................................................................................3-20

3-1-8. Camera Part ..............................................................................................3-22

3-1-9. LCD .............................................................................................................3-26

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

3-2-1. EGSM Receiver .........................................................................................3-30

3-2-2. EGSM Transmitter .....................................................................................3-31

3-2-3. DCS Receiver ............................................................................................3-32

3-2-4. DCS Transmitter ........................................................................................3-33

3-2-5. PCS Receiver .............................................................................................3-34

3-2-6. PCS Transmitter .........................................................................................3-35

3-2-7. UMTS Receiver ..........................................................................................3-40

3-2-8. UMTS Transmitter ......................................................................................3-41

3-2-9. BLUETOOTH ..............................................................................................3-45

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/DCS1800/PCS1900 General Specification

EGSM 900

Phase 2

DCS1800

Phase 1 PCS1900

Freq. Band[MHz]

Uplink/Downlink

880~915

925~960

1710~1785

1805~1880

1850~1910

1930~1990

ARFCN range 0~124 & 975~1023 512~885 512~810

Tx/Rx spacing 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

Time Slot

Period/Frame

Period

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

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

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

Sensitivity -102 dBm -100 dBm -100 dBm

TDMA Mux 8 8 8

Cell Radius 35 Km 2Km -

SAMSUNG Proprietary-Contents may change without notice

Specification

1-2

This Document can not be used without Samsung's authorization

1-2. GSM TX power class

TX Power

control level EGSM900

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

QKP01

QFU01

QLC01

QMW01

QCW01

QSC01

QCA01

QHI19

QCR12

QFL04

QMI01 : GH30-00177C

QMI03

QHI01

QFL01

QAU01 QME01

QMI01 : GH81-06085A

QFR01

QBA01

QMP01

QSC29

QCR32

QRE01

QSD01

QCR06

QSC37

QCB01

QVK01

QCR32

QSC31

QMO01

QVO01

QIF01

QCR12

QAN02

SAMSUNG Proprietary-Contents may change without notice

Exploded View and Parts List

2-2

This Document can not be used without Samsung's authorization

Design LOC Description SEC CODE

QAN02 INTENNA-SGH-U300 GH42-01154A

QAU01 AUDIO-RECEIVER 3009-001262

QBA01 SOFT BATTERY PACK-690MAH,BLK,E GH43-02812A

QCA01 CAMERA MODULE GH59-04215A

QCB01 AS-COXIAL CABLE GH81-06648A

QCR05 SCREW-MACHINE 6001-001478

QCR12 SCREW-MACHINE 6001-001530

QCR17 SCREW-MACHINE 6001-001460

QCR32 SCREW-MACHINE 6001-001700

QCW01 PMO-CAM WINDOW GH72-37590A

QFL01 ASSY COVER-F/LOWER SUB GH98-03829B

QFL04 ASSY DECO-F/LOWER SUB GH98-03868B

QFR01 ASSY COVER-FR SUB GH98-03750B

QFU01 ASSY COVER-F/UPPER GH98-03752B

QHI01 ASSY HINGE GH98-03062A

QHI19 IPR-HINGE BLOCK GH70-02395A

QIF01 PMO-COVER IF GH72-37584B

QKP01 ASSY KEYPAD-(RUSS/BLU) GH98-04906A

QLC01 LCD-MODULE SGHU300 GH07-01110A

QME01 KEY FPCB-SGHU300 KEY PBA GH59-04213A

QMI01 MICROPHONE-ASSY-5.25MM GH30-00177C

QMI01 AS-MIC SVC GH81-06085A

QMI03 RMO-MIC HOLDER FR GH73-07324A

QMO01 MOTOR DC-MOTOR,SPEAKER MODULE( GH31-00316A

QMP01 PBA MAIN-SGHU300 GH92-03487A

QMW01 AS-LCD WINDOW GH81-06234A

QRE01 ASSY COVER-REAR COVER SUB GH98-03830B

QSC01 RMO-RUBBER LOWER SCREW CAP GH73-09620B

QSC29 RMO RUBBER-BT GH73-10606A

QSC31 RMO RUBBER-RESET DOME GH73-10607A

QSC37 RMO-RUBBER PCB BASE GH73-09146A

QSD01 PMO-SIM COVER GH72-39826B

QVK01 KEY FPCB-SGHU300 VOLUME KEY GH59-04214A

QVO01 PMO-KEY VOLUME GH72-39356A

2-2. Cellular phone Parts list

SAMSUNG Proprietary-Contents may change without notice

Exploded View and Parts List

2-3

This Document can not be used without Samsung's authorization

Description SEC CODE

CBF INTERFACE-DLC,X830,SIL,PCB GH39-00720B

ADAPTOR-SGHE690,SIL,EU,A_TYPE GH44-01361B

EARPHONE-EARPHONE,SGHE490,SIL, GH59-03883B

LABEL(R)-WATER SOAK GH68-09361A

TAPE INSU GH74-31680A

MPR-INSU TAPE GH74-31681A

MPR-SPONGE PCB A GH74-31689A

MPR-TAPE FPCB GH74-31994A

TAPE-GASKET BT GH74-33420A

AS-LCD TAPE GH81-06235A

AS-LCD SUB GH81-06335A

TAPE INSU GH74-31679A

TAPE INSU GH74-31710A

VINYL-BOHO FOLDER UPPER GH74-32275A

SPONGE-CAM GH74-30241A

TAPE-GASKET BATT CONN GH74-33669A

VINYL-BOHO REAR GH74-34439A

S/W CD-SGHU300 PC STUDIO 3.1 GH46-00408A

MANUAL-SFC GH68-04336A

MANUAL USERS-EU RUSSIAN GH68-14481A

BAG PE 6902-000634

LABEL(P)-UNIT SEAL GH68-00518B

LABEL(R)-MAIN(SER) GH68-14742B

BOX(P)-UNIT MAIN(SER) GH69-05380B

CUSHION-CASE(EU) GH69-05381A

SAMSUNG Proprietary-Contents may change without notice

Exploded View and Parts List

2-4

This Document can not be used without Samsung's authorization

①

②

③

1) Disassemble the SCREW 6 POINT.

2) Disassemble this set from upper part.

※caution

1) Be careful of damage of cover and scratch.

2) When disassemble it, be careful not to change

on the REAR.

1) Remove the SCREW COVER on the REAR.

※caution

1) Be careful of damage of cover and scratch.

1) Seperate the battery from the SET.

2) After disassemble the LCD CONNECTOR,

seperateaPCBfixedSCREW2POINT.

※caution

1) When separate the battery, using a stick's no

sharp side, put this stick in the picture's grey

part with lever theory.

2) Be careful of damage and change a battery.

1) Separate the LCD CONNECOTOR.

2) Separate the BATT. CONNECOTOR.

3) Separate the KEY FPCB CONNECOTOR.

※caution

1) Be careful not to occur some damages each

LCD CONNECTOR FPCB.

3 4

2-3. Disassembly

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