Samsung B2700 User manual

GSM TELEPHONE
Samsung B2700
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. Chart of Troubleshooting
10. Reference data
11. Disassembly and Assembly
Instructions
GSM TELEPHONE CONTENTS

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1. Safety Precautions
1-1
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 EGSM 900
Phase 2 DCS1800 PCS1900 WCDMA
Freq. Band[MHz]
Uplink/Downlink
824~849
869~894
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
1920~1980
2110~2170
ARFCN range 128~251 0~124 &
975~1023 512~885 512~810 10562~10838
Tx/Rx spacing 45 MHz 45 MHz 95 MHz 80MHz 190MHz
Mod. Bit rate/
Bit Period
270.833 Kbps
3.692 us
270.833 Kbps
3.692 us
270.833 Kbps
3.692 us
270.833 Kbps
3.692 us 3.84Mcps/s
Time Slot
Period/
Frame Period
576.9 us
4.615 ms
576.9 us
4.615 ms
576.9 us
4.615 ms
576.9 us
4.615 ms 10ms
Modulation 0.3 GMSK 0.3 GMSK 0.3 GMSK 0.3 GMSK Up Link:2BPSK
Down Link:QPSK
MS Power 33 dBm~5 dBm 33 dBm~5 dBm 30 dBm~0 dBm 30 dBm~0 dBm MAX:24(+1.-3)dBm
MIN:<-50dBm
Power Class 5pcl ~19pcl 5pcl ~19pcl 0pcl ~15pcl 0pcl ~15pcl CLASS 3
Sensitivity -102 dBm -102 dBm -100 dBm -102 dBm -106.7 dBm
TDMA Mux 8888-
Cell Radius 35 Km 35 Km 2 Km - -

Specification
2-2
2-2. GSM TX power class
TX Power
control level
GSM850
GSM900
5 33±3 dBm
6 31±3 dBm
7 29±3 dBm
8 27±3 dBm
9 25±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±5dBm
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±4 dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
TX Power
control level PCS1900
0 30±3 dBm
1 28±3 dBm
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 14±3 dBm
9 12±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
-Pedometer
-Compass
-Torch Light
-2MAF CMOS Camera
-Music Player
-FM Radio
-Bluetooth 2.0
-USB 2.0 Highspeed

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

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Array course control
4-2
This Document can not be used without Samsung's authorization
Software Downloading
4-1. Downloading Binary Files
ㆍBinary Version can be changed.
File Comments
B2700XXHG5_Open_Europe_Common_Comp.ptt Binary files
4-2. Pre-requsite for Downloading
ㆍDownloader Program(Flash loader v1.3 Lite 7.0.7_CRC_STALL.exe)
ㆍSAMSUNG B2700 Mobile Phone
ㆍData Cable
ㆍZIG Box(GH80-03306A)
ㆍBinary files
4-3. S/W Downloader Program
1. Load the binary download program by executing the
"Flash loader v1.3 Lite 7.0.7_CRC_STALL.exe".
[Program main window]

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Array course control
4-3
This Document can not be used without Samsung's authorization
2. ㆍClick "NAND_FLASH"to select type of memory chip of SAMSUNG B2700
on the location menu.
ㆍCheck "Erase and Write"to select option on Command.
ㆍCheck "USB"on Communication Settings.
3. Click "Partition Table" to load Binary folder.

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Array course control
4-4
This Document can not be used without Samsung's authorization
If the previous processes were successful, you can find new window as below.
4. Click "Browse" button to load Binary file.
Find adirectory that binary files are saved.
Select ".ppt"file and click "열기(OPEN)"