Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung GSM Samsung SGH-i710 service manual
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GSM TELEPHONE
SGH-i710
GSM TELEPHONE CONTENTS
1. Safety Precautions
2. Specification
3. Operation Instruction and
Installation
4. Array course control
5. Exploded View/Disassembly
and Assembly Instructions
6. MAIN Electrical Parts List
7. Block Diagrams
8. PCB Diagrams
9. Flow Chart of Troubleshooting
10. Reference data
GSPN (Global Service Partner Network)
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
This Service Manual is a property of Samsung Electronics Co.,Ltd. Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law. 2007.05 Rev.1.0
1. Safety Precautions
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 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.
1-1
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Safety Precautions
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.
1-2
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
2. Specification
2-1. GSM General Specification
GSM850 EG SM 900 DCS1 800
PCS1 900
Phase 1 Phase 2 Phase 1
Fr eq.
824~8 49 880~9 15 1710~1 785 1850~1 910
Band[ MHz]
869~8 94 925~9 60 1805~1 880 1930~1 990
Uplink/Downlin k
0~1 24 &
ARFCN r ange 128~2 51 512~8 85 512~8 10
975~1 023
Tx/Rx spa cing 45MHz 45MHz 95MHz 80MHz
Mod. Bit r ate / 270.8 33kbps 270.8 33kbps 270.8 33kbps 270.8 33kbps
Bit Period 3.69 2us 3.69 2us 3.69 2us 3.69 2us
T im e Sl ot
576. 9us 576. 9us 576. 9us 576. 9us
Period/F rame
4 .615ms 4 .615ms 4 .615ms 4 .615ms
Pe rio d
Modulatio n 0.3G M SK 0.3G MSK 0.3G M SK 0.3G MSK
MS Powe r 33dBm~ 5dBm 33dBm~ 5dBm 30dBm~ 0dBm 30dBm~ 0dBm
Power Class 5pcl ~ 1 9pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sensit ivit y - 102dBm - 102dBm - 100dBm - 100dBm
TDMA Mu x 8 8 8 8
Cell Radius 35Km 35Km 2Km 2Km
2-1
Specification
2-2. GSM Tx Power Class
TX Power TX Power TX Power TX Power
control GSM850 control EGSM900 control DCS1800 control PCS1900
level level level level
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