Samsung SGH-C266 Manual de usuario

GSM TELEPHONE

SGH-C266

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 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. 2. 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. Safety Precautions

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

1-2. ESD(Electrostatically Sensitive Devices) Precaution...............................................1-2

2. Specification

2-1. GSM General Specification.......................................................................................2-1

2-2. GSM TX power Level...............................................................................................2-2

3. Product Function

4. Array course control

4-1. Software Adjustments................................................................................................4-1

4-2. Software Downloading...............................................................................................4-2

5. Exploded View/Disassembly & Assembly Instructions

5-1. Cellular phone Exploded View..................................................................................5-1

5-2. Cellular phone Parts list............................................................................................5-2

5-3. Disassembly & Assembly Instructions......................................................................5-4

6. MAIN Electrical Parts List

7. Block Diagrams

8. PCB Diagrams

CONTENTS

9. Flow Chart of Troubleshooting

9-1. Baseband

9-1-1. Power ON...............................................................................................................9-1

9-1-2. Initial........................................................................................................................9-4

9-1-3. SIM Part..................................................................................................................9-6

9-1-4. Microphone Part......................................................................................................9-7

9-1-5. Speaker Part...........................................................................................................9-9

9-1-6. LCD Backlight.......................................................................................................9-11

9-2. RF

9-2-1. GSM Rx................................................................................................................9-12

9-2-2. DCS Rx.................................................................................................................9-15

9-2-3. PCS Rx.................................................................................................................9-17

9-2-4. GSM Tx.................................................................................................................9-19

9-2-5. DCS Tx.................................................................................................................9-21

9-2-6. PCS Tx.................................................................................................................9-23

10. Reference data

SAMSUNG Proprietary-Contents may change without notice

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

specipicty 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 manetic 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 disassembing 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.

SAMSUNG Proprietary-Contents may change without notice

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 easilly 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

GSM 850

Phase 2 DCS1800

Phase 1 PCS1900

Freq. Band[MHz]

Uplink/Downlink 824.2~848.8

869.2~893.8 1710~1785

1805~1880 1850~1910

1930~1990

ARFCN range 128~251 512~885 512~810

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

Time Slot Period/Frame Period 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 ~ 19 pcl 0 pcl ~ 15 pcl 0 pcl ~ 15 pcl

Sensitivity -102 dBm -100 dBm -100 dBm

TDMA Mux 8 8 8

Cell Radius 35 Km 2 Km -

Speclflcation

2-2

2-2. GSM Tx Power Class

TX Power

control level GSM850

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

TX Power

control level PCS1900

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±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

3. Product Function

3-1

This Document can not be used without Samsung's authorization

Main Function

-Web browser

Access the wireless web to get current information and up-to-the-minute a wide

variety of media content.

-Java

Enjoy Java™-based embedded games and download new games.

-Multimedia Message Service(MMS)

Send and receive MMS messages with a combination of text, image, video, and

audio.

-E-mail

Send and receive-emails with image, video,and audio attachments.

SAMSUNG Proprietary-Contents may change without notice

Product Function

3-2

This Document can not be used without Samsung's authorization

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