Samsung SGH-B300 Bedienungsanleitung

GSM TELEPHONE

SGH-B300

1. Safety Precautions

2. Specification

3. Product Function

4. Array course control

5. Exploded View and Parts list

6. MAIN Electrical Parts List

7. Disassembly and Assembly

Instructions

8. Block Diagrams

9. PCB Diagrams

10. Chart of Troubleshooting

11. Reference data

GSM TELEPHONE CONTENTS

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.

2008. 04. 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)

2. Specification

2-1

2-1. GSM General Specification

EGSM 900

Phase 2

DCS1800

Phase 1

Freq. Band[MHz]

Uplink/Downlink

880~915

925~960

1710~1785

1805~1880

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

Tx/Rx spacing 45 MHz 95 MHz

Mod. Bit rate/

Bit Period

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

Modulation 0.3 GMSK 0.3 GMSK

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

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

Sensitivity -102 dBm -100 dBm

TDMA Mux 8 8

Cell Radius 35 Km 2 Km

Speclflcation

2-2

2-2. GSM Tx Power Class

TX Power

control level GSM900

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±3 dBm

18 7±3 dBm

19 5±3 dBm

TX Power

control level DCS1800

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±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

5. Exploded View and Parts List

5-1

This Document can not be used without Samsung's authorization

5-1. Cellular phone Exploded View

QFU01

QFR01

QSH01

QME16

QLC01

QFL01

QCR06

QKP01

QME01

QCR12

QMP01

QMI01

QAN02

QRE01

QCR87

QBA01

QBA00

QMW02

QSP01

QLC02

QMO01

QSC01

QRF03

SAMSUNG Proprietary-Contents may change without notice

Exploded View and Parts List

5-2

This Document can not be used without Samsung's authorization

Design LOC Discription SEC CODE

QAN02 INTENNA-SGHB300 GH42-01534A

QBA00 PMO COVER-BATTERY GH72-46670A

QBA01 INNER BATTERY PACK-750MAH,BLK, GH43-02483A

QCR06 SCREW-MACHINE 6001-001155

QCR12 SCREW-MACHINE 6001-001530

QCR87 SCREW-TAPPING 6002-001412

QFL01 ASSY CASE-LOWER GH98-07688A

QFU01 ASSY CASE-UPPER GH98-07689A

QKP01 ASSY KEYPAD-(XEF/DGA) GH98-07671A

QLC01 LCD-MODULE SGHB110L GH07-01241A

QLC02 ELA UNIT-SGHB300 LCD MODULE SV GH96-03067A

QME01 DOME SHEET-SGHB300 GH59-05506A

QME16 UNIT-SGHB300 CON TO CON GH59-05509A

QMI01 MICROPHONE-ASSY-SGHB300 GH30-00467A

QMO01 MOTOR DC-SGHZ130 GH31-00154C

QMP01 PBA MAIN-SGHB300 GH92-04468A

QMW02 PMO WINDOW-MAIN GH72-46665A

QRE01 ASSY CASE-REAR GH98-07686A

QSC01 TAPE-COVER SCREW LOWER GH74-38101A

QSH01 ASSY BRACKET-SHIELD CAN GH98-07685A

QSP01 SPEAKER 3001-002344

QFR01 ASSY CASE-FRONT GH98-07687A

QRF03 PMO COVER-EAR GH72-46664A

5-2. Cellular phone Parts list

SAMSUNG Proprietary-Contents may change without notice

7. Disassembly and Assembly Instructions

7-1

This Document can not be used without Samsung's authorization

7-1. Disassembly

1) Release SCREW 4POINT at Rear.

※Caution

1) Be careful not to make scratch.

1) Disjoint HOOK from up to down.

※Caution

1) Be careful Hook damage when you Disjoint a

REAR.

1) Seperate the IF COVER front FRONT.

1) Disjoint LCD CONNECTOR.

2) Separate PBA from FRONT.

①

②

③

IF COVER

HOOK 2M 카메라

PBA

HOOK

2POINT

LCD

CONNECT

SAMSUNG Proprietary-Contents may change without notice

Exploded View and Parts List

7-2

This Document can not be used without Samsung's authorization

1) Seperate UPPER from LOWER.

Release aHOOK which locate upside first.

※Caution

1) Be careful Hook damage when you disjoint a UPPER.

1) Sperate MOTOR from the LOWER

2) Sperate SPEAKER from the LOWER

1) Put tweezers to Front hole and Press

down aHinge.

2) Separate FRONTand FOLDER ASS'Y during

doing NO.1.

※Caution

1) Beware that you do not damage LCD F-PCB.

2) Be caredful that you do not make scratch when

you press down a Hinge.

1) Remove SCREW CAP using tweezers.(2POINT)

2) Release SCREW.

※Caution

1) Be careful not to make scratch and molding damage!

SCREW

2POINT

SPEAKER

MOTOR

SAMSUNG Proprietary-Contents may change without notice

Exploded View and Parts List

7-3

This Document can not be used without Samsung's authorization

1) Seperate aFolder LOWER and LCD MODULE.

※Caution

1) Beware that you do not damage LCD F-PCB.

2) Beware that you do not damage F-PCB

when you passing F-PCB to hole of LOWER

LCD F-

PCB

SAMSUNG Proprietary-Contents may change without notice

Exploded View and Parts List

7-4

This Document can not be used without Samsung's authorization

7-2. Assembly

1) Twist the MOTOR wire twice, then put

into the LOWER

※Caution

1) Arrange WIRE not to be interfered

with other components.

1) Assemble Folder Lower and Folder Upper

from upside.

※Caution

1) Be careful not to make scratch and molding

damage.

2) Check GAP is exist after finish assembly.

1) Put the SPEAKER on the UPPER

※Caution

1) Arrange WIRE not to be interfered

with other components.

1) Put LCD F-PCB into the hole of LOWER.

2) Put LCD Ass'y in Folder Lower.

※Caution

1) Be careful not to make scratch and molding

damage.

2) Beware that you do not damage F-PCB

when you insert F-PCB to hole of LOWER

Twiste twice

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