Samsung SGH-i907 Series User manual

GSM TELEPHONE
SGH-i900
1. Safety Precautions
2. Specification
3. Product Function
4. Array course control
5. Exploded View and Parts list
6. MAIN Electrical Parts List
7. Disassembly and Assembly
Instructions
8. Block Diagrams
9. PCB Diagrams
10. Chart of Troubleshooting
11. Reference data
GSM TELEPHONE CONTENTS

This Service Manual is aproperty 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. 06. 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
1-2
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 akind of magnetic object or tool,
because performance of parts is damaged by the influence of manetic force.
●Surely use astandard screwdriver when you disassemble this product,
otherwise screw will be worn away.
●Use athicken twisted wire when you measure level.
Athicken 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 arepair 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.

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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 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 acircuit board.

2. Specification
2-1
2-1. GSM General Specification
GSM850
Phase 1
EGSM 900
Phase 2
DCS1800
Phase 1 PCS1900 WCDMA2100
Freq.
Band[MHz]
Uplink/Downlink
824~849
869~894
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
1922~1977
2112~2167
ARFCN range 128~251 0~124 &
975~1023 512~885 512~810
UL:9612~9888
DL:10562~108
38
Tx/Rx spacing 45MHz 45MHz 95MHz 80MHz 190MHz
Mod. Bit rate/
Bit Period
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us 3.84Mcps
Time Slot
Period/Frame
Period
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
FrameLength:
10ms
Slotlength:
0.667ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK QPSKHQPSK
MS Power 33dBm~5dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dB
m
24dBm~-
50dBm
Power Class 5pcl ~ 19pcl 5pcl ~19
pcl 0pcl ~15 pcl 0pcl ~15 pcl 3(max+24dBm)
Sensitivity -102dBm -102dBm -100dBm -100dBm -106.7dBm
TDMA Mux 8 8 8 8
Cell Radius 35Km 35Km 2Km 2Km 2Km

Specification
2-2
2-2. GSM Tx Power Class
TX Power
control
level
GSM850
533±2
dBm
631±2
dBm
729±2
dBm
827±2
dBm
925±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
EGSM900
533±2
dBm
631±2
dBm
729±2
dBm
827±2
dBm
925±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
030±3
dBm
128±3
dBm
226±3
dBm
324±3
dBm
422±3
dBm
520±3
dBm
618±3
dBm
716±3
dBm
814±3
dBm
912±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±3
dBm
128±3
dBm
226±3
dBm
324±3
dBm
422±3
dBm
520±3
dBm
618±3
dBm
716±3
dBm
814±3
dBm
912±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

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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 -5Mega Pixel, 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
―Document Viewer
―File Manager,My Item
―Java
―Pod Casting,RSS Reader
―Games
―MTV
―Postcard
―Google Map
―TV OUT
―Auto Brightness Control
―Acceleration Sensor

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4. Array course control
4-1
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4-1. Software Adjustments
There is 2set 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 (GH39-00993A)
4. Power Cable :JIG to power supply
5. Serial Cable :SGH-i900 to PC
6. Power Supply
7. RF Cable (GH39-00599A): to Agilent 8960 or CMU200
8. Test Cable :JIG to SGH-i900 (GH39-00990A)

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Array course control
4-2
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[Second set]
1. USB DATA Link Cable :GH39-00922A
2. Battery :GH43-03110A
4-2. Software Download
1-1. Equipment for Software Download
1-2. Pre-requisite for Download
▶Downloader Program
-[Image Version].exe
▶USB Driver
-PDA :Samsung MITs USB Sync [Samsung MITs USB Sync.zip]
-Phone :Samsung CDMA Modem [Samsung CDMA Modem.zip]
▶SGH-i900 Mobile Device
▶Driver Installation

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Array course control
4-3
This Document can not be used without Samsung's authorization
2-1. Driver Installation (PDA)
▶Make sure that you install drivers.
▶If you installed the latest ActiveSync program, you don’t need to install the pda d
river. Please install the latest ActiveSync program.
2-2. Driver Installation (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 ahos
tcomputer.
3. Execute the Downloader Program. [Image Version.exe]
4. Turn off your device.
5. Connect your device to ahost computer by using USB DATA Link Ca