Samsung GT-B5702 User manual

GSM TELEPHONE
GT-B5702
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

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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
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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
GSM900 GSM850 DCS1800 PCS1900
Freq.
Band[MHz]
Uplink/Downlink
880~915
925~960
824.2~848.8
869.2~893.8
1710~1785
1805~1880
1850~1910
1930~1990
ARFCN range 0~124 &
975~1023 128~251 512~885 512~810
Tx/Rx spacing 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
Time Slot
Period/Frame
Period
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
MS Power 33dBm~5dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class 5pcl ~ 19pcl 5pcl ~ 19pcl 0pcl ~15
pcl 0pcl ~15 pcl
Sensitivity -102dBm -102dBm -100dBm -100dBm
TDMA Mux 8 888
Cell Radius 35Km 35Km 2Km -

Speclflcation
2-2
TX Power
control level
GSM850
GSM900
533±3
dBm
631±3
dBm
729±3
dBm
827±3
dBm
925±3
dBm
10 23±3 dBm
11 21±3 dBm
12 19±3 dBm
13 17±3 dBm
14 15±3 dBm
15 13±3 dBm
16 11±5 dBm
17 9±5 dBm
18 7±5 dBm
19 5±5 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±4dBm
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±4dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
2-2. GSM Tx Power Class

Speclflcation
2-3
TX Power
control level
GSM900
GSM850
827±3
dBm
925±3
dBm
10 23±3 dBm
11 21±3 dBm
12 19±3 dBm
13 17±3 dBm
14 15±3 dBm
15 13±3 dBm
16 11±5 dBm
17 9±5 dBm
18 7±5 dBm
19 5±5 dBm
TX Power
control level DCS1800
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
7 16±3 dBm
8 12±3 dBm
9 10±3 dBm
10 14±3 dBm
11 12±4 dBm
12 10±4 dBm
13 8±4dBm
14 6±4 dBm
15 4±4 dBm
2-3. GSM EDGE TX power class
TX Power
control level PCS1900
226±3
dBm
324±3
dBm
422±3
dBm
520±3
dBm
618±3
dBm
716±3
dBm
812±3
dBm
910±3
dBm
10 14±3 dBm
11 12±4 dBm
12 10±4 dBm
13 8±4dBm
14 6±4 dBm
15 4±4 dBm
Only in Master

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3. Product Function
3-1
This Document can not be used without Samsung's authorization
Main Function
-GSM850+GSM900+DCS1800+PCS1900
-E-GSM, GPRS, EDGE
-Dual Stnadby (Dual TX, Dual RX)
-2.4" 262K 240*320 TFT LCD
-3M Auto Focus Camera
-Bluetooth V.2.1+EDR
-Stereo Bluetooth Headset
-Music player
-MP3, AAC, MP4, 3GPP Decoding
-SMS/MMS/E-Mail
-FM Radio &Recording
-Wap 2.0
-Java Games

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4. Array course control
4-1
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4-1. Software Downloading
Test Cable (GH39-01160A)
Test Jig (GH99-36900A)
RF Test Cable (GH39-00985A) Adapter (GH99-38251A)

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Array course control
4-2
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4-2. Software Downloading
4-2-1. Pre-requsite for Downloading
ㆍDownloder Program (OneNAND SOLOMON Downloader v0.7)
ㆍB5702 Mobile Phone
ㆍData Cable
ㆍBinary File, TFS file
4-2-2. S/W Downloader Program
■Load the binary download program by executing the
“OneNAND SOLOMON Downloader v0.7”
1. Select the download mode you want.
-if Master mode wanted, check MASTER
-if Slave mode wanted, check SLAVE
2.Select the connected serial Port and the Rate of speed
3.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'
4.Select the file(s) what you want to download
-if you select MASTER,select the file "B5712_Master.ooo"
-if you select SLAVE,select the file "B5712_Slave.ooo"
1
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5. Exploded View and Parts List
5-2
This Document can not be used without Samsung's authorization
5-1. Cellular phone Exploded View
QFU01
QCR97
QCR03
QMP01
QMO01
QLC01
QSP01
QCA01
QFL01
QCR72
QRE01
QCR60
QBA00
QFR01
QKP01
QMI01
QSH01
QME01
QSH02
QKP02
QME16
QAN02
QIF01
QMW01
QHI01
QCR72
QVO01
QAN03
QCK01
QCK02