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GSM TELEPHONE
SGH-D880
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
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. 11 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 specificity 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. 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
2-1. GSM General Specification
G SM900 EG SM 900 DCS18 00
PCS190 0
Pha se 1 Phase 2 Ph ase 1
Fr eq. Band [MHz] 89 0~915 880~9 15 1 710~17 85 1 850~19 10
Up link/ Do wnl ink 93 5~960 925~9 60 1 805~18 80 1 930~19 90
0~1 24 &
ARFCN ran ge 1 ~124 512~88 5 512~81 0
975~1 023
Tx/Rx spacin g 4 5MHz 45MHz 95MHz 80MHz
Mod. Bit rat e 270 .833kb ps 270.8 33kbps 27 0.833 kbps 27 0.833 kbps
/ Bit Per iod 3. 692us 3.69 2us 3.692 us 3.692 us
Time Slot Per iod 57 6.9us 576. 9us 576.9 us 576.9 us
/ Fr am e Per iod 4.6 15ms 4 .615ms 4. 615ms 4. 615ms
Mo dulat ion 0. 3G MSK 0.3G MSK 0.3G M SK 0.3G MSK
MS Power 33d Bm~5dBm 33dBm~ 5dBm 30 dBm~0d Bm 30 dBm~0d Bm
Po wer Class 5pcl ~ 19pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sen sitivity -102 dBm - 102dBm -1 00dBm -1 00dBm
TDM A M ux 8 8 8 8
Cell Radius 35Km 35Km 2Km
*PCS1900 only in Master
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Specification
2-2. GSM TX power class
TX Power GSM900 TX Power TX Power
DCS1800 PCS1900
control level GSM850 control level control level
5 33