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)

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 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.

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 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.

SAMSUNG Proprietary-Contents may change without notice
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 270.833kbps 3.692us 3.84Mcps (chip rate)
Time Slot Period
/ Frame Period 576.9us 4.615ms 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

SAMSUNG Proprietary-Contents may change without notice
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

SAMSUNG Proprietary-Contents may change without notice
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

SAMSUNG Proprietary-Contents may change without notice
Product Function
3-2
This Document can not be used without Samsung's authorization

SAMSUNG Proprietary-Contents may change without notice
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)

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-2
This Document can not be used without Samsung's authorization
[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.