Samsung SGH-T439 Series User manual

GSM TELEPHONE
SGH-T439
UMTS 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

Samsung Electronics Co.,Ltd.
2007. 10. Rev.1.0
ⓒ
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.
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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 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
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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
GSM850
Phase 1
GSM900
Phase 1
EGSM 900
Phase 2 DCS1800 PCS1900
Freq.
Band[MHz]
Uplink/Downlink
824~849
869~894
890~915
935~960
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
ARFCN range 128~251 1~124 0~124 &
975~1023 512~885 512~810
Tx/Rx spacing 45MHz 45MHz 45MHz 95MHz 80MHz
Mod. Bit rate/
Bit Period
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
Time Slot
Period/Frame
Period
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~5dBm 33dBm~5dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class 5pcl ~ 19pcl 5pcl ~ 19pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sensitivity -102dBm -102dBm -102dBm -100dBm -100dBm
TDMA Mux 8 8 8 8 8
Cell Radius 35Km 35Km 35Km 2Km -
2-1. GSM General Specification

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Specification
2-2
TX Power
control level GSM850 GSM900
5 33±2 dBm 33±2 dBm
6 31±2 dBm 31±2 dBm
7 29±2 dBm 29±2 dBm
8 27±2 dBm 27±2 dBm
9 25±2 dBm 25±2 dBm
10 23±2 dBm 23±2 dBm
11 21±2 dBm 21±2 dBm
12 19±2 dBm 19±2 dBm
13 17±2 dBm 17±2 dBm
14 15±2 dBm 15±2 dBm
15 13±2 dBm 13±2 dBm
16 11±3 dBm 11±3 dBm
17 9±3dBm 9±3dBm
18 7±3 dBm 7±3 dBm
19 5±3 dBm 5±3 dBm
TX Power
control level DCS1800 PCS1900
0 30±3 dBm 30±3 dBm
1 28±3 dBm 28±3 dBm
2 26±3 dBm 26±3 dBm
3 24±3 dBm 24±3 dBm
4 22±3 dBm 22±3 dBm
5 20±3 dBm 20±3 dBm
6 18±3 dBm 18±3 dBm
7 16±3 dBm 16±3 dBm
8 14±3 dBm 14±3 dBm
9 12±4 dBm 12±4 dBm
10 10±4 dBm 10±4 dBm
11 8±4dBm 8±4dBm
12 6±4 dBm 6±4 dBm
13 4±4 dBm 4±4 dBm
14 2±5 dBm 2±5 dBm
15 0±5 dBm 0±5 dBm
2-2. GSM TX power class

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3. Operation Instruction and Installation
3-1
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Main Function
-Stylish Mega Folder
-Quad-band / EDGE
-1.3Mega Camera
-128x160,65K PMOLED, 2.0”/ 96x96, 65K PMOLED, 1.0”
-Global Inbox
-IM (Yahoo, AOL, ICQ,MSN), MMS
-SAIC, Speaker Phone
-Stereo BT
-SyncML DS / NAB
-“myFaves” phase1.5
-Consumer Email (Native)

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Operation Instruction and Installation
3-2
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4. Array course control
4-1
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4-1. Software Adjustments
Jig Cable (GH80-00840A)
Power Supply Cable
Serial Cable(CSA LL64151-A)
Test Jig (GH80-03306A)

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Array course control
4-2
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4-2. Software Downloading
4-2-1. Pre-requsite for Downloading
• Downloader Program(T439 PNX5230 FOTA Downloade VER3.exe)
• T439 Mobile Phone
• Data Cable
• Binary file, TFS file
4-2-2. S/W Downloader Program
■Load the binary download program by executing the
“T439 PNX5230 FOTA Downloade VER3.exe”
1. Select the connected serial port and therateofspeed
2. Select the check box, the mode you want to download.
- if the binary file wanted, check only'BIN'
- if the tfs file wanted, check only 'TFS'
- if all the files wanted, check 'BIN+TFS'
- if audio tunning wanted, check 'TFS+AUDIO