Samsung GT-B7350 User manual

GSM TELEPHONE
GT-B7350
1. Safety Precautions
2. Specification
3. Product Function
4. Exploded View and Parts list
5. MAIN Electrical Parts List
6. Level 1Repair
7. Level 2Repair
8. Level 3Repair
9. Reference data
Notice :
All functionality, features, specifications and other
product information provided in this document inclu
ding, but not limited to, the benefits, design, pricing,
components, performance, availability, and capabiliti
-es of the product are subject to change without
notice or obligation. Samsung reserves the right to
make changes to this document and the product
described herein, at anytime, without obligation on
Samsung to provide notification of such change.
GSM TELEPHONE CONTENTS

This Service Manual is aproperty of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
Samsung Electronics Co.,Ltd.
2010. 07. Rev.1.0
ⓒ
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
GSPN (Global Service Partner Network)

2. Specification
2-1
2-1. GSM General Specification
GSM850
Phase 1
EGSM 900
Phase 2
DCS1800
Phase 1 PCS1900 WCDMA210 0WCDMA900
Freq.
Band[MHz]
Uplink/Downlin
k
824~849
869~894
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
1922~1977
2112~2167
880~915
925~960
ARFCN range 128~251 0~124 &
975~1023 512~885 512~810
UL:9612~98
88DL:10562
~10838
UL:2712~28
63,DL:2937
~3088
Tx/Rx spacing 45MHz 45MHz 95MHz 80MHz 190MHz 45MHz
Mod. Bit rate/
Bit Period
270.833kbp
s
3.692us
270.833kbp
s
3.692us
270.833kbp
s
3.692us
270.833kbp
s
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
FrameLengt
h:
10ms
Slotlength:
0.667ms
FrameLengt
h:
10ms
Slotlength:
0.667ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK QPSKHQPS
K
QPSKHQPS
K
MS Power 33dBm~5dB
m
33dBm~5dB
m
30dBm~0dB
m
30dBm~0dB
m
24dBm~-
50dBm
24dBm~-
50dBm
Power Class 5pcl ~
19pcl 5pcl ~19
pcl 0pcl ~15 pcl 0pcl ~15 pcl 3(max+24dB
m)
3(max+24dB
m)
Sensitivity -102dBm -102dBm -100dBm -100dBm -106.7dBm -106.7dBm
TDMA Mux 8 8 8 8 88
Cell Radius 35Km 35Km 2Km 2Km 2Km 2Km

Specification
2-2
2-2. GSM Tx Power Class
TX Power
control
level
GSM850
533±2
dBm
631±2
dBm
729±2
dBm
827±2
dBm
925±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
EGSM900
533±2
dBm
631±2
dBm
729±2
dBm
827±2
dBm
925±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±4 dBm
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±4 dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm

SAMSUNG Proprietary-Contents may change without notice
3. Operation Instruction and Installation
3-1
This Document can not be used without Samsung's authorization
Main Function
•GSM(2G EDGE/GPRS)850/900/1800/1900, WCDMA(3G HSDPA)W900/W2100
•HSDPA 7.2 Mbps
•2.62”
TFT Touch (R-type)
•Music player, Voice Recorder
•A-GPS /Bluetooth v2.0+EDR /WiFi (802.11 b/g)
•3M
Camera(AF)
•FM Radio Receiver
•USB 2.0 Full Speed
•Windows Mobile 6.5
•SMS/MMS/Email

SAMSUNG Proprietary-Contents may change without notice
6. Level 1Repair
6-1
This Document can not be used without Samsung's authorization
6-1. Software Download
6-1-1. Pre-requisite for Download
ㆍDownloader Program (MSM7x27 &MSM7X25_MultiDownloader.exe)
ㆍGT-B7350 Mobile Phone
ㆍData Cable
ㆍJIG BOX (GH99-36900A)
ㆍRF Test Cable (GH39-00985A)
ㆍJIG Cable (GH39-01338A)
ㆍAdapter (GH99-38251A)
ㆍBinary files
-Diagram of Connection:
PC
Mobile Phone(with Battery)
Data Cable

SAMSUNG Proprietary-Contents may change without notice
Level 1Repair
6-2
This Document can not be used without Samsung's authorization
6-1-2. S/W Download Process
1. Load the binary download program by executing the
"MSM7x27 &MSM7X25_MultiDownloader.exe"

SAMSUNG Proprietary-Contents may change without notice
Level 1Repair
6-3
This Document can not be used without Samsung's authorization
2. Set the Download program
(1).Load "phone,Eboot,PDA,CSC,LangPak" files
(2) Check "CSC Priority Bit" and "Select/Deselet All"

SAMSUNG Proprietary-Contents may change without notice
Level 1Repair
6-4
This Document can not be used without Samsung's authorization
3. COM Port Mapping change to Green Color when the phone with download mode is
connected to PC by data cable.
cf. You have to set the phone as adownload mode by pressing Volume down +Hold key +
End key simultaneously before connecting to PC .

SAMSUNG Proprietary-Contents may change without notice
Level 1Repair
6-5
This Document can not be used without Samsung's authorization
4. Click the Start button when the Port searched.

SAMSUNG Proprietary-Contents may change without notice
Level 1Repair
6-6
This Document can not be used without Samsung's authorization
It will start to download.

SAMSUNG Proprietary-Contents may change without notice
Level 1Repair
6-7
This Document can not be used without Samsung's authorization
5. When downloading is finished successfully, there is a"
DownLoad Pass"message.
6. Confirm the downloaded version name and etc. :
*#1234#

SAMSUNG Proprietary-Contents may change without notice
9. Reference Abbreviate
This Document can not be used without Samsung's authorization
9-1
Reference Abbreviate
―AAC:Advanced Audio Coding.
―AVC :Advanced Video Coding.
―BER :Bit Error Rate
―BPSK:Binary Phase Shift Keying
―CA :Conditional Access
―CDM :Code Division Multiplexing
―C/I :Carrier to Interference
―DMB :Digital Multimedia Broadcasting
―EN :European Standard
―ES :Elementary Stream
―ETSI:European Telecommunications Standards Institute
―MPEG:Moving Picture Experts Group
―PN :Pseudo-random Noise
―PS :Pilot Symbol
―QPSK:Quadrature Phase Shift Keying
―RS :Reed-Solomon
―SI :Service Information
―TDM :Time Division Multiplexing
―TS :Transport Stream

SAMSUNG Proprietary-Contents may change without notice
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 magnetic 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 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.

SAMSUNG Proprietary-Contents may change without notice
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 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 acircuit board.

SAMSUNG Proprietary-Contents may change without notice
4. Exploded View and Parts List
4-1
This Document can not be used without Samsung's authorization
4-1. Cellular phone Exploded View
QME03
QFR01
QLC01
QME01
QVK01
QSP01
QCA01
QDE01
QKP01
QMP01
QRE01
QCR101
QBC00
QCK02 QCK01
QSD01
QVO01
QRF06
QAN02
QFR04
QAN05

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
4-2
This Document can not be used without Samsung's authorization
Design LOC Description SEC CODE
QCR101 SCREW-MACHINE 6001-002005
QSP01 MODULE-SPK/MOT/RCV GH59-09738A
QCA01 CAMERA MODULE-GT-B7350,3AF_CIF CAMERA MO GH59-09812A
QVK01 KEY FPCB-VOL KEY(GT_B7350) GH59-09772A
QME03 TOUCH/PANEL-TOUCH KEY(GT_B7350) GH59-09840A
QMP01 A/S ASSY-PBA MAIN (COMM) GH82-05111A
QLC01 ASSY LCD-2.6" 320X320 GT-B7350 ASSY GH96-04750A
QME01 ASSY MODULE-TF KEY PBA+BRACKET(GTB7350) GH96-04853A
QFR01 ASSY COVER-FRONT(EU/OG) GH98-17299A
QKP01 ASSY KEYPAD-MAIN(XK/OPEN) GH98-17300A
QDE01 ASSY DECO-TOP CAP GH98-17305A
QAN05 ASSY COVER-INTENNA GH98-17306A
QBC00 ASSY COVER-BATT GH98-17619A
QFR04 ASSY DECO-TOP GH98-17304A
QRF06 PMO COVER-USB GH72-60105A
QRE01 ASSY COVER-REAR GH98-17518A
QAN02 INTENNA-GT_B7350(MAIN) GH42-02623A
QCK02 PMO KEY-HOLD GH72-60100A
QCK01 PMO KEY-CAMERA GH72-60101A
QVO01 PMO KEY-VOLUME GH72-60102A
QSD01 PMO COVER-SD GH72-60103A
4-2. Cellular phone Parts list

- This Document can not be used without Samsung's authorization -
5-2. Cellular phone Parts list : GT-B7350XKAXEF
Design LOC Description SEC CODE
QAN02 INTENNA-GT_B7350(MAIN) GH42-02623A
QAN05 ASSY COVER-INTENNA GH98-17306A
QBC00 ASSY COVER-BATT GH98-17619A
QCA01 ASSY CAMERA-MODULE(B7350_3M) GH96-04926A
QCK01 PMO KEY-CAMERA GH72-60101A
QCK02 PMO KEY-HOLD GH72-60100A
QCR101 SCREW-MACHINE 6001-002005
QDE01 ASSY DECO-TOP CAP GH98-17305A
QFR01 ASSY COVER-FRONT(EU/OG) GH98-17299A
QFR04 ASSY DECO-TOP GH98-17304A
QKP01 ASSY KEYPAD-MAIN(XK/FRAN) GH98-17815A
QLC01 ASSY LCD-2.6" 320X320 GT-B7350 ASSY GH96-04750A
QME01 ASSY MODULE-TF KEY PBA+BRACKET(GTB7350) GH96-04853A
QME03 TOUCH/PANEL-TOUCH KEY(GT_B7350) GH59-09840A
QMP01 A/S ASSY-PBA MAIN (COMM) GH82-05111A
QRE01 ASSY COVER-REAR GH98-17518A
QRF06 PMO COVER-USB GH72-60105A
QSD01 PMO COVER-SD GH72-60103A
QSP01 MODULE-SPK/MOT/RCV GH59-09738A
QVK01 KEY FPCB-VOL KEY(GT_B7350) GH59-09772A
QVO01 PMO KEY-VOLUME GH72-60102A

SAMSUNG Proprietary-Contents may change without notice
7. Level 2Repair
7-1
This Document can not be used without Samsung's authorization
7-1. Disassembly
1 2
3 4 1) Separate Intenna Cover from the SET.
1)Disassemble Deco Top Cover. 1)Unscrew the 2points of Deco Top.
2)Separate Deco Top from the SET.
1)Unscrew the 6points of Rear.
※Caution
1) Be care of scratch and molding damage.
※Caution
1) Be care of scratch and molding damage.
2) Torque :1.0~1.2Kgf·cm
※Caution
1) Be care of scratch and molding damage.
2) Torque :1.0~1.2Kgf·cm
※Caution
1) Be care of scratch and molding damage.

SAMSUNG Proprietary-Contents may change without notice
7. Level 2Repair
7-2
This Document can not be used without Samsung's authorization
5 6
71)Disconnect Key connector 81)Disconnect CAM, SPK connector
1) Seperate the Rear Case from the Set. 1)Disconnect LCD connector
2)Separate PBA from the Ass'y
※Caution
1) Be care of scratch and molding damage.
※Caution
1) Be care of damage to LCD F-CPB.
※Caution
1) Be care of damage to Key F-CPB.
※Caution
1) Be care of damage to part of PBA