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
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Europe europe.samsungportal.com
China china.samsungportal.com
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GSPN (Global Service Partner Network)

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1. Safety Precautions
1-1
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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
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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
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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

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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
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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
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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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Array course control
4-3
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4-2-2. Single download ([Image version].exe)
1. Execute the Downloader Program. [Image Version.exe]
2. Turn off your device.
3. Connect your device to a host computer by using USB DATA Link Cable.
4. Turn on your device and wait.
5. Downloading is started automatically.

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6. When the download is finished, the phone is turned off automatically.
[ Job Done ]
)Trouble Shooting
1. “PDA Device not found” message

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Array course control
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)Make sure that your device is connected a host computer by USB DATA Link cable.
2. “Port Open Failed” message or application hang
)After you install “phone USB driver (Samsung CDMA Modem)” at first time, you may see “Port
open failed…” message or application hang while downloading a phone image. If so, terminate
the application and then try the download again.

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Array course control
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)If USB port is changed, at first time you may see “Port open failed…” message or application
hang. If so, terminate the application and then try the download again.
)If USB cable to the mobile device is not connected tightly, you may see “Port open failed…”
message or application hang. If so, terminate the application and then try the download again.
)If you always see “port open failed” message or application hang,
1. When application is activated, go to the device manager, remove the SAMSUNG CDMA Modem
and SAMSUNG USB Composite Device.
2. Rename C:\WINDOWS\system32\drivers\Modem.sys to other name. (ex. Modem-.sys)
3. Go to control panel->program add/remove, and then remove Samsung CDMA Modem driver or
Samsung USB driver(MCCI)
4. Restart your PC.
5. Install attached SAMSUNG CDMA Modem_4.34
6. Try the download again.
3. “Write Failed” message
)If battery level is low, use charged battery and try again.

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Array course control
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4-2-3. Multi download
1. Device Settings
1. USB 2.0 hub:
Use the D-Link DUB-H7, an authorized Hi-Speed USB 2.0 hub, only.
1) Connect the hub to PC.
2) Connect the hub to the adapter.
2. Data Cable: Check the serial number first. The number should start with ‘D.’
1) Connect the hub to the cable.
2) Connect testing devices to the cable

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3. Illustration of MultiDownloader Overall Figure after SettingsConfiguration
2. Prerequisite
1. Before beginning the download, make sure all testing devices have the GJ2 or later boot image.
Go to the ‘Start à Settings à System à Version’ to check that the version is ‘PDA: i870BVGJ2’ or later.
2. Before beginning the download, confirm that the phone modem of the phone is attached to the
computer USB port of the computer where the OS image will be downloaded.
To this end, make sure the phone image has been downloaded only once.
(The initial attempt will fail, but this iswill be failed. This is to install the phone modem to the computer
USB port will failof the computer.)
Ex) In order to multi-download the OS image for 8 devices, select the phone image only to download
download it to 8 devices. Initially, the download to 8 devices will be failed. However, you will see that
there are 8 SAMSUNG CDMA modems under "Mthe modem" of in the "Device Manager".
(It may take a while to confirm that the modems appear under the "Mmodem"category. If they
appearappeared, they are installed successfully.)

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Array course control
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Go to the ‘3. How to Download’ to see the detailedinstruction.
(1) Run the program.
(2) Load the image by selecting the phone image only.
(3) Prepare to detect.
(4) Connect testing devices.
When the below warning message appears,,
click ‘Continue’
and check the Device Manager to see a ‘SGH-i780.’
Within 30 seconds, it will change to ‘Samsung MITs USB Sync.’
Then, separate the battery and reboot the device to see that the connection has been made.
not connected è
connected

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(5) Start downloading
(6) Wait until the phone modems appear in the Device Manager.
Go to the ‘My Computer à–Properties à–Hardware à– Device Manager à– Modem' to check that the
SAMSUNG CDMA Modem appears.
(7) After terminating the program, disconnect the device.
(8) Repeat the process from (1)
to confirm that downloading to the phone works appropriately.
If several phones do not appear,,
repeat the same process until all devices are connected and appear.

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3. How to Download
1. Disconnecting the ActiveSync
Run the ActiveSync. Then, select the Connection Settings under the ‘File’ tab. Deselect the ‘
Allow USB Coneection.’

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1) Running the program
Run the ‘UMDL_i780_v1.0.exe .’
Note, ‘Waiting for starting…’ in the screenshot sounds very odd. I would suggest that the client consider
changing this to ‘Waiting to start…’
Buttonswillbeactivatedwhenthe‘MIRAGELVImage’isselectedatinthe‘Selecta
platform’ menupane.