Samsung GT-B7300 User manual

GSM TELEPHONE
GT-B7300
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
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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.

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2. Specification
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2-1
GSM850 EGSM 900 DCS1800 PCS1900 W-CDMA
900
W-CDMA
2100
Freq.
Band[MHz]
Uplink/Downl
ink
824~849
869~894
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
882~913
927~958
1920~1980
2110~2170
ARFCN
range 128~251 0~124 &
975~1023 512~885 512~810 UL:2712~2863
DL:2937~3088
UL:9612~9888
DL:10562~
10838
Tx/Rx
spacing 45MHz 45MHz 95MHz 80MHz 45MHz 130MHz
Mod. Bit
rate/
Bit Period
270.833kb
ps
3.692us
270.833kb
ps
3.692us
270.833kb
ps
3.692us
270.833kb
ps
3.692us
3.84Mcps 3.84Mcps
Time Slot
Period/Frame
Period
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
Frame
length:10ms
Slot length:
0.667ms
Frame
length:10ms
Slot length:
0.667ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK QPSK
HQPSK
QPSK
HQPSK
MS Power 33dBm
~5dBm
33dBm
~5dBm
30dBm
~0dBm
30dBm
~0dBm
24dBm~
-50dBm
24dBm~
-50dBm
Power Class
4
(max
+33dBm)
4
(max
+33dBm)
1
(max
+33dBm)
1
(max
+33dBm)
3
(max +24dBm)
3
(max +24dBm)
Sensitivity -102dBm -102dBm -100dBm -100dBm -106.7dBm -106.7dBm
TDMA Mux 8 8 8 8
Cell Radius 35Km 35Km 2Km 2Km 2Km 2Km
2-1. GSM General Specification

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Specification
2-2
TX Power
control level
GSM850
GSM900
5 33±2 dBm
6 31±2 dBm
7 29±2 dBm
8 27±2 dBm
9 25±2 dBm
10 23±2 dBm
11 21±2 dBm
12 19±2 dBm
13 17±2 dBm
14 15±2 dBm
15 13±2 dBm
16 11±3 dBm
17 9±3dBm
18 7±3 dBm
19 5±3 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
2-2. GSM TX power class
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

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3. Operation Instruction and Installation
3-1
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Main Function
-Slim Bar Design 3G MITS
-3.0Megapixel Camera
-3.0"WQVGA 262K Color TFT Screen
-External Memory microSD (T-Flash)
-Video Recording &Messaging
-Music Player(MP3/AAC/AAC+)
-FM Radio Support
-A-GPS Support
-Bluetooth Wireless Technology V2.0+EDR
-Multimedia Message Service (MMS) /SMS /E-mail
-Voice recorder
-Speaker Phone
-Java MIDP 2.0/ WAP2.0
-GSM/GPRS Class 10
-Quad-band(850/900/1800/1900MHz)
-WCDMA Dual(900/2100MHz)

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4. Array course control
4-1
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4-1. Software Adjustments
Test Jig (GH99-36900A)
RF Test Cable (GH39-00985A) Adapter (GH99-38251A)
Test Cable (GH39-01290A)

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Array course control
4-2
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4-2. Software Downloading
4-2-1. Downloading Binary Files
•Buckingham_LPFlash.nb0
•Buckingham_Bootloader.nb0
•CSC_GT-B7300XXIH2.csc
•Phone_B7300XXIH2.bin
•Buckingham Downloader v2.4.exe
4-2-2. Pre-requsite for Downloading
•Downloader Program :(
Buckingham Downloader v2.4.exe)
•Binary files
•GT-B7300 Mobile Phone
•USB cable

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Array course control
4-3
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4-2-3. S/W Downloader Program
1-1
1) Load the binary download program by executing
the "Buckingham Downloader v2.4.exe"
2) Select the binary filesthat you want to download
-Press the "Eboot"button and select "Buckingham_Bootloader.nb0"
-Press the "PDA"button and select "Buckingham_LPFlash.nb0"
-Press the "CSC"button and select "CSC_GT-B7300XXIH2.csc"
-Press the "Phone"button and select "Phone_B7300XXIH2.bin"

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Array course control
4-4
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3) Press the "Detect"button and connect the Handset using by USB cable.
4) Turn on the device pressing by END Key.
5) Press the "Start downloading"button if the device found.