Samsung SGH-U300 service manual.pdf

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GSM TELEPHONE
SGH-U300
GSM TELEPHONE
1.
2.
3.
4.
5.
6.
7.
8.
9.
CONTENTS
Specification
Exploded View and Parts list
Chart of Troubleshooting
Array course control
Block Diagrams
PCB Diagrams
MAIN Electrical Parts List
Reference data
Safety Precautions
10. Product Function
GSPN (Global Service Partner Network)
Country
North America
Latin America
CIS
Europe
China
Asia
Mideast & Africa
Web Site
service.samsungportal.com
latin.samsungportal.com
cis.samsungportal.com
europe.samsungportal.com
china.samsungportal.com
asia.samsungportal.com
mea.samsungportal.com
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.
ⓒ
Samsung Electronics Co.,Ltd.
2007. 05. Rev.1.0
Contents
1. Specification
1-1. GSM/CDMA General Specification ...........................................................................1-1
1-2. GSM TX power class ...............................................................................................1-2
2. Exploded View and Parts list
2-1. Cellular phone Exploded View ..................................................................................2-1
2-2. Cellular phone Parts list ............................................................................................2-2
2-3. Disassembly ...............................................................................................................2-4
2-4. Assembly ....................................................................................................................2-8
3. Chart of Troubleshooting
3-1. Baseband ............................................................................................................3-1
3-1-1. Power ON .....................................................................................................3-1
3-1-2. System Initial ................................................................................................3-6
3-1-3. SIM Part .......................................................................................................3-8
3-1-4. Charging Part .............................................................................................3-10
3-1-5. Microphone Part .........................................................................................3-13
3-1-6. Speaker Part ..............................................................................................3-16
3-1-7. Receiver Part .............................................................................................3-20
3-1-8. Camera Part ..............................................................................................3-22
3-1-9. LCD .............................................................................................................3-26
3-2. RF ......................................................................................................................3-13
3-2-1. EGSM Receiver .........................................................................................3-30
3-2-2. EGSM Transmitter .....................................................................................3-31
3-2-3. DCS Receiver ............................................................................................3-32
3-2-4. DCS Transmitter ........................................................................................3-33
3-2-5. PCS Receiver .............................................................................................3-34
3-2-6. PCS Transmitter .........................................................................................3-35
3-2-7. UMTS Receiver ..........................................................................................3-40
3-2-8. UMTS Transmitter ......................................................................................3-41
3-2-9. BLUETOOTH ..............................................................................................3-45
Contents
4. Array course control
4-1. Downloading Binary Files ......................................................................................4-2
4-2. Pre-requsite for Downloading ................................................................................4-2
4-3. S/W Downloader Program .....................................................................................4-3
5. Block Diagrams
6. PCB Diagrams
7. MAIN Electrical Parts List
8. Reference data
8-1. Reference Abbreviate ..............................................................................................8-1
9. Safety Precautions
9-1. Repair Precaution ......................................................................................................9-1
9-2. ESD(Electrostaically Sensitive Devices) Precaution ................................................9-2
10. Product Function
1. Specification
1-1. GSM/DCS1800/PCS1900 General Specification
EG SM 900
Phase 2
Fr eq. Band[ MHz]
Uplink/Downlink
ARFCN r ange
Tx/ Rx sp acing
Mod. Bit rat e/
Bit Per iod
T im e S lot
Per iod/ Fra me
Period
Modu lation
880~915
925~960
0~124 & 975~1023
45 MHz
270.833 kbps
3.692 us
576.9 us
4.615 ms
DCS18 00
Ph ase 1
1710~1785
1805~1880
512~885
95 MHz
270.833 kbps
3.692 us
576.9 us
4.615 ms
PCS190 0
1850~1910
1930~1990
512~810
80 MHz
270.833 kbps
3.692 us
576.9 us
4.615 ms
0.3 GMSK
0.3 GMSK
0.3 GMSK
MS Power
33 dBm~5 dBm
30 dBm~0 dBm
30 dBm~0 dBm
Power Cl ass
Sensitivity
T DM A M u x
Cell Radius
5 pcl ~ 19 pcl
-102 dBm
8
35 Km
0 pcl ~ 15 pcl
-100 dBm
8
2 Km
0 pcl ~ 15 pcl
-100 dBm
8
-
1-1
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization

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