Samsung SGH-X680 Manual de usuario

GSM TELEPHONE

SGH-X680

GSM TELEPHONE CONTENTS

1. Safety Precautions

2. Specification

3. Product Function

4. Array course control

5. Exploded View and Parts List

6. Disassembly and Assembly

instructions

7. MAIN Electrical Parts List

8. Block Diagrams

9. PCB Diagrams

10. Flow Chart of Troubleshooting

11. Reference data

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 Class ......................................................................2-2

3. Product Function

3-1. Main Function ................................................................................3-1

4. Array course control

Software Downloading

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

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

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

5. Exploded View and Parts List

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

5-2. Cellular phone Part list ...................................................................5-2

6. Disassembly and Assembly instructions

6-1. Disassembly ..................................................................................6-1

6-2. Assembly ......................................................................................6-4

7. MAIN Electrical Parts List

8. Block Diagrams

9. PCB Diagrams

10. Flow Chart of Troubleshooting

10-1. Baseband

10-1-1. Power ON ..............................................................................10-1

Contents

10-1-2. Initial ....................................................................................10-4

10-1-3. Sim Part ...............................................................................10-7

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

10-1-5. Microphone Part ...................................................................10-12

10-1-6. Speaker Part ........................................................................10-14

10-1-7. LCD ....................................................................................10-17

10-1-8. Camera ...............................................................................10-19

10-2. RF

10-2-1. EGSM Receiver .....................................................................10-21

10-2-2. DCS Receiver........................................................................10-22

10-2-3. PCS Receiver.........................................................................10-23

10-2-4. GSM Transmitter...................................................................10-24

10-2-5. DCS/PCS Transmitter.............................................................10-25

10-2-6. Bluetooth Part ......................................................................10-28

11. 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

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

270.833 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 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm

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

Sensiti vity -102 dBm -102 dBm -100 dBm -100 dBm

TDMA Mux 8 8 8 8

Cell Radius 35 Km 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±3dBm

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±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

TX Power

control level PCS1900

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±4dBm

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

-Camera and camcorder

-Music player

-Bluetooth

-Web browser

-Get personal with photo caller ID

-Name card

-Multimedia Message Service (MMS)

-Java

-Calendar

-Voice recorder

-Alarm

SAMSUNG Proprietary-Contents may change without notice

4. Array course control

4-1

This Document can not be used without Samsung's authorization

Test Jig (GH80-03307A)

Test Cable (GH39-00369A)

RF Test Cable (GH39-00397A)

SAMSUNG Proprietary-Contents may change without notice

Array course control

4-2

This Document can not be used without Samsung's authorization

Software Downloading

4-1. Downloading Binary Files

• Three binary files for downloading X680.

– X680XXXXX.s3 : Main source code binary.

4-2. Pre-requsite for Downloading

• Downloader Program(OptiFlash.exe)

• X680 Mobile Phone

• Data Cable

• Binary files

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