Samsung SGH-E250D Manual de usuario

GSM TELEPHONE

SGH-E250D_W

GSM TELEPHONE CONTENTS

1. Safety Precautions

2. Specification

3. Product Function

4. Array course control

5. Exploded View and Parts List

6. MAIN Electrical Parts List

7. Block Diagrams

8. PCB Diagrams

9. Flow Chart of Troubleshooting

10. Reference data

11. Disassembly and Assembly

Instructions

This Service Manual is a property 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. 12. 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)

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1. Safety Precautions

1-1

This Document can not be used without Samsung's authorization

1-1. Repair Precaution

-Repair in Shield Box, during detailed tuning. Take specially care of tuning or test,

because specificity of cellular phone is sensitive for surrounding interference(RF noise).

-Be careful to use a kind of magnetic object or tool, because performance of parts is damaged by

the influence of magnetic force.

-Surely use a standard screwdriver when you disassemble this product, otherwise screw will be worn

away.

-Use a thicken twisted wire when you measure level.

A thicken twisted wire has low resistance, therefore error of measurement is few.

-Repair after separate Test Pack and Set because for short danger (for example an

overcurrent and furious flames of parts etc) when you repair board in condition of

connecting Test Pack and tuning on.

-Take specially care of soldering, because Land of PCB is small and weak in heat.

-Surely tune on/off while using AC power plug, because a repair of battery charger is dangerous

when tuning ON/OFF PBA and Connector after disassembling charger.

-Don't use as you pleases after change other material than replacement registered on SEC System.

Otherwise engineer in charge isn't charged with problem that you don't keep this rules.

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Safety Precautions

1-2

This Document can not be used without Samsung's authorization

1-2. ESD(Electrostatically Sensitive Devices) Precaution

Several semiconductor may be damaged easily by static electricity. Such parts are called by ESD

(Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below.

You can prevent from ESD damage by static electricity.

-Remove static electricity remained your body before you touch semiconductor or parts with

semiconductor. There are ways that you touch an earthed place or wear static electricity

prevention string on wrist.

-Use earthed soldering steel when you connect or disconnect ESD.

-Use soldering removing tool to break static electricity. , otherwise ESD will be damaged by

static electricity.

-Don't unpack until you set up ESD on product. Because most of ESD are packed by box and

aluminum plate to have conductive power,they are prevented from static electricity.

-You must maintain electric contact between ESD and place due to be set up until ESD is

connected completely to the proper place or a circuit board.

2. Specification

2-1

2-1. 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 45MHz 45MHz 95MHz 80MHz

Mod. Bit rate/

Bit Period

270.833kbps

3.692us

270.833kbps

3.692us

270.833kbps

3.692us

270.833kbps

3.692us

Time Slot

Period/Frame

Period

576.9us

4.615ms

576.9us

4.615ms

576.9us

4.615ms

576.9us

4.615ms

Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK

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

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

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

TDMA Mux 8 8 8 8

Cell Radius 35Km 35Km 2Km -

Speclflcation

2-2

TX Power

control level GSM900

533±2dBm

631±2dBm

729±2dBm

827±2dBm

925±2dBm

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±3dBm

128±3dBm

226±3dBm

324±3dBm

422±3dBm

520±3dBm

618±3dBm

716±3dBm

814±3dBm

912±4dBm

10 10±4 dBm

11 8±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

TX Power

control level PCS1800

030±3dBm

128±3dBm

226±3dBm

324±3dBm

422±3dBm

520±3dBm

618±3dBm

716±3dBm

814±3dBm

912±4dBm

10 10±4 dBm

11 8±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

2-2. GSM Tx Power Class

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3. Product Function

3-1

This Document can not be used without Samsung's authorization

Main Function

-SlimSlide Design Intenna

-VGA Camera

-Bluetooth V.2.0

-Stereo Bluetooth Headset

-Mobile Tracker & SOS Messaging

-Large 2.0" 65K Color TFT Display

-SMS/MMS/E-Mail

-WAP 2.0 / Java MIDP 2.0

-MP3,AAC,MP4,3GPPDecoding

-Video Recording and Messaging

-GSM/GPRS Class 10

-Triple Band(GSM900/DCS,PCS)

-64 Poly

-Speaker Phone

-Voice Clarity

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Product Function

3-2

This Document can not be used without Samsung's authorization

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4. Array course control

4-1

This Document can not be used without Samsung's authorization

Software Adjustments

RF CABLE (GH39-00397A)

Power Supply Cable

Serial Cable(CSA LL64151-A)

Test Jig (GH80-03306A) Test Cable (GH39-00499A)

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Array course control

4-2

This Document can not be used without Samsung's authorization

Software Downloading

4-1. Pre-requsite for Downloading

• Downloader Program(OneNAND Downloder V1.0 Lite For PNX5230.exe)

• E250 Mobile Phone

• Data Cable

• Binary file, TFS file

4-2. S/W Downloader Program

■Load the binary download program by executing the

“OneNAND Downloder V1.0 Lite For PNX5230.exe”

1. Select the connected serial port and the rate of speed

2. Select the check box, the mode you want to download.

- if the binary file wanted, check only 'BIN'

- if the tfs file wanted, check only 'TFS'

- if all the files wanted, check 'BIN+TFS'

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