Samsung SGH-L770 User manual

UMTS TELEPHONE
SGH-L770
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. Disassembly and Assembly
Instructions
8. Block Diagrams
9. PCB Diagrams
10. Chart of Troubleshooting
11. Reference data

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)
Samsung Electronics Co.,Ltd.
2008. 05 Rev.1.0
ⓒ
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 Proprietary-Contents may change without notice
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.

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 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.

SAMSUNG Proprietary-Contents may change without notice
2. Specification
2-1
This Document can not be used without Samsung's authorization
2-1. GSM/DCS1800/PCS1900/WCDMA2100 General Specification
EGSM 900
Phase 2
DCS1800
Phase 1 PCS1900 WCDMA
2100
Freq. Band[MHz]
Uplink/Downlink
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
1920~1980
2110~2170
ARFCN range 0~124 & 975~1023 512~885 512~810 9612~9888
10562~10838
Tx/Rx spacing 45 MHz 95 MHz 80 MHz 190MHZ
Mod. Bit rate/
Bit Period
270.833 kbps
3.692 us
270.833 kbps
3.692 us
270.833 kbps
3.692 us 4.096Mcps
Time Slot
Period/Frame
Period
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 QPSK
MS Power 33 dBm~5 dBm 30 dBm~0 dBm 30 dBm~0 dBm 24dBm~
-50dBm
Power Class 5 pcl ~19pcl 0pcl ~15pcl 0pcl ~15pcl Power class 3
Sensitivity -102 dBm -100 dBm -100 dBm -106.7dBm
TDMA Mux 8 8 8 -
Cell Radius 35 Km 2Km --

SAMSUNG Proprietary-Contents may change without notice
Specification
2-2
This Document can not be used without Samsung's authorization
2-2. GSM TX power class
TX Power
control level
GSM850/
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. Product Function
3-1
This Document can not be used without Samsung's authorization
Main Function
-MP3 Music player
-SOS message
-FM radio support
-DRM OMA V2.0 support
-Bluetooth CSR V2.0 support
-External memory support
-2M camera support
-RF support band
:GSM 900 + DCS1800 +PCS 1900 + WCDMA2100 (band1)

SAMSUNG Proprietary-Contents may change without notice
4. Array course control
4-1
This Document can not be used without Samsung's authorization
RF Test Cable
(GH39-00397A)
Test Cable
(GH39-01106A / GH39-01104A)
Test Jig (GH80-03307A)
Serial Cable
Power Supply Cable DATA CABLE
(GH39-00922A)
TA
(GH44-01702A)

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-2
This Document can not be used without Samsung's authorization
Software Downloading
4-1. Downloading Binary Files
ㆍThree binary files for downloading L770
-L770XXYY.fls :Main source code binary
4-2. Pre-requsite for Downloading
ㆍDriver Program(FlashUsb.sys)
ㆍDownloader Program(FlashTool_E2.exe)
ㆍL770 Mobile Phone
ㆍData Cable
ㆍBinary files

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-3
This Document can not be used without Samsung's authorization
4-3. USB Driver Installation Guide