Samsung I780 User manual

GSM TELEPHONE

SGH-i780

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.

2008. 01. 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 the specification 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.

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2. Specification

This Document can not be used without Samsung's authorization

2-1

EGSM 900 DCS 1800 PCS 1900 W-CDMA 2100

Freq. Band[MHz]

Uplink/Downlink 880~915

925~960 1710~1785

1805~1880 1850~1910

1930~1990 1920~1980

2110~2170

ARFCN range 0~124 &

975~1023 512~885 512~810 UL:9612~9888

DL:10562~10838

Tx/Rx spacing 45MHz 95MHz 80MHz 190MHz

Mod. Bit rate/

Bit Period 270.833kbps

3.692us 270.833kbps

3.692us 3.84Mcps

(chip rate)

Time Slot Period

/ Frame Period 576.9us

4.615ms 576.9us

4.615ms Frame length : 10ms

Slot length : 0.667ms

Modulation 0.3GMSK 0.3GMSK 0.3GMSK QPSK (DL)

HPSK (UL)

MS Power 33dBm ~ 5dBm 30dBm ~ 0dBm 30dBm ~ 0dBm 24dBm ~ -50dBm

Power Class 4

(max +33dBm) 1

(max +30dBm) 1

(max +30dBm) 3

(max +24dBm)

Sensitivity -102dBm -100dBm -100dBm -106.7dBm

TDMA Mux 8 8 8

Cell Radius 35Km 2Km 2Km 2Km

2-1. GSM General Specification

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This Document can not be used without Samsung's authorization

Specification

2-2

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

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±3 dBm

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±4 dBm

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

―Homescreen

―PIM - Contacts, Calendar, Tasks, Voice Note

―Messaging - SMS, MMS, Email, VoiceRecorder within MMS

―Windows Live! Portal

―Windows Update

―Email Setup Wizard

―Internet Explorer

―Multimedia capability - 2 Mega Pixel / VGA Camera, Camcorder, Windows Media Player

―Zoomer

―Dialer

―Video Telephony

―Accessary Applications - Alarms, Calculator, NotePad, Task Manager, Smart Converter,

World Clock, Stopwatch, Smart Search

―Active Sync

―Bluetooth

―WIFI

―Document Viewer

―T9

―File Manager, My Item

―Java

―Pod Casting, RSS Reader

―Games (Solitarie, Bubble breaker)

―MTV

―Postcard

―Google Map

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Product Function

3-2

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4. Array course control

4-1

This Document can not be used without Samsung's authorization

4-1. Software Adjustments

There is 2 set to download the binary image into your device.

[First set]

1. JIG BOX (UMTS TEST JIG: GH80-03308A)

2. USB Cable : JIG to PC

3. Test Cable : JIG to SGH-i780 (GH39-00890A)

4. Power Cable : JIG to power supply

5. Serial Cable : SGH-i780 to PC

6. Power Supply

7. RF Cable : SGH-i560 to Agilent 8960 or CMU200 (GH39-00599A)

8. Test Cable : JIG to SGH-i780 (GH39-00886A)

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Array course control

4-2

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[Second set]

1. USB DATA Link Cable : GH39-00922A

2. Battery : GH43-02969A

4-2. Software Download

4-2-1. Pre-requisite for Download

• Downloader Program (there are 2 ways to download.)

- [Image version].exe (Single downloader)

- SGH_i780V_version.exe (Multi downloader)

• SGH_i780V Mobile Device

• USB Driver

-PDA : Samsung MITs USB Sync [Samsung MITs USB Sync.zip]

-Phone : Samsung CDMA Modem [Samsung CDMA Modem.zip]

• Driver Installation.

- PDA

Make sure that you install drivers.

If you installed the latest ActiveSync program, you don’t need to install the pda driver. Please

install the latest ActiveSync program.

- Phone

When you download the phone image, you need the driver of Samsung CDMA Modem.

If you want to download the phone image, install the Samsung CDMA Modem driver.

After you install the driver of Samsung CDMA Modem, please restart a host computer.

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