Samsung SGH-L760 User manual

UMTS TELEPHONE
SGH-L760
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. Block Diagrams
8. PCB Diagrams
9. Flow Chart of Troubleshooting
10. Reference data
11. Disassembly and Assembly
Instructions

Samsung Electronics Co.,Ltd.
2007. 07. Rev.1.0
ⓒ
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
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)

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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 cellular phone is sensitive for surrounding
interference(RF noise).
●Be careful to use a kind of magnetic object or tool, because performance of parts is damaged by
the influence of magnetic force.
●Surely use a standard screwdriver when you disassemble this product, otherwise screw will be
worn away.
●Use a thicken twisted wire when you measure level.
A thicken twisted wire has low resistance, therefore errors of measurement are 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
Packandtuningon.
●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 a repair 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.

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Safety Precautions
1-2
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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 a circuit board.

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2. Specification
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2-1
2-1. GSM General Specification
EGSM 900 DCS1800 PCS1900 WCDMA
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 UL:9612~9888 DL:10562~10838
Tx/Rx spacing 45MHz 95MHz 80MHz 190MHz
Mod. Bit rate/
Bit Period 270.833kbps 3.692us 270.833kbps 3.692us 270.833kbps 3.692us 3.84Mcps
Time Slot
Period/Frame Period 576.9us 4.615ms 576.9us 4.615ms 576.9us 4.615ms Frame length : 10ms Slot length : 0.667ms
Modulation
GSM/
GPRS 0.3GMSK 0.3GMSK 0.3GMSK QPSK
HQPSK
EDGE 8PSK 8PSK 8PSK
MS Power 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm 24dBm ~ - 50dBm
Power Class 4
(max +33dBm) 1 (max +30dBm) 1 (max +30dBm) 3 (max +24dBm)
Sensitivity -102dBm -100dBm -100dBm -106.7dBm
TDMA Mux 8 8 8
Cell Radius 35Km 2Km 2Km 2Km

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Specification
2-2
2-2. GSM TX power class
TX Power
control level PCS1900
030±2dBm
128±3dBm
226±3dBm
324±3dBm
422±3dBm
520±3dBm
618±3dBm
716±3dBm
814±3dBm
912±4dBm
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 GSM900
533±2dBm
631±2dBm
729±2dBm
827±2dBm
925±2dBm
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±2dBm
128±3dBm
226±3dBm
324±3dBm
422±3dBm
520±3dBm
618±3dBm
716±3dBm
814±3dBm
912±4dBm
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. Product Function
3-1
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Main Function
－2 MEGA PIXEL CMOS
－MP3 / 72 Poly Melody
－BT 2.0
－Video Telephony / Streaming
－USB 1.1
－WAP2.0, JAVA2.0, MPEG4
－FM Radio
－MIDP 2.0 / CLDC 1.1
－SOS Message, Auto Time Setting,
－GPRS/EDGE : class 12
－MMS / EMS
－BT/FM : Braodcom BCM2045
－Battery: 900mAh(553443)
－Weight: 92.8 g
－Memory:1G SB +512Mb
－Camera: - 2.0M FF (LSI)
-VGA(Magnachip)
－LCD : 2.0" QCIF TFT(AMLCD)
－Size: 99.5x47x15mm
－Band: 900/1800/1900/2100
－BB: Qualcomm MSM6245
－RF: Qualcomm RTR6275

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Product Function
3-2
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4. Array course control
4-1
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DATA CABLE(GH39-00859A)
RF Test Cable (GH39-00468A)
4-1. Software Adjustments
Power Supply Cable
Serial CableTest Cable (GH39-00886A)
Test Jig (GH80-03308A)

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Array course control
4-2
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4-2. Software Downloading
4-2-1. Pre-requsite for Downloading
• Downloader Program
• SGH-L760 Mobile Phone
• Data Cable
• Binary file,
4-2-2. S/W Downloader Program
■Load the binary download program by executing the
“downloader V5.20”
1. Select the connected serial port and the rate of speed
2. Select the check box, the mode you want to download.
- if the boot file wanted, check 'boot change'
- if the binary file wanted, check only 'modem, Rsrc1 , Rsrc2, Factory FS , FOTA'
3. Select the file(s) what you want to download