Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung GSM Samsung SGH-C520 service manual
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GSM TELEPHONE
SGH-C520
GSM TELEPHONE CONTENTS
1. Specification
2. Exploded View and Parts list
3. Chart of Troubleshooting
4. Array course control
5. Block Diagrams
6. PCB Diagrams
7. MAIN Electrical Parts List
8. Reference data
9. Safety Precautions
10. Product Function
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
1) 2Mega Camera .....................................................................................3-22
2) VGA Camera .........................................................................................3-23
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 General Specification
G S M 9 00 EGSM 900 DCS1 800
Ph ase 1 Ph ase 2 Phase 1
F r eq. Ban d[MHz] 89 0~9 15 88 0~9 15 171 0~ 178 5
Up lin k/D own lin k 93 5~9 60 92 5~9 60 180 5~ 188 0
0~ 124 &
ARF CN r a nge 1 ~12 4 51 2~ 885
975 ~1 023
T x/ Rx s p ac in g 45 M H z 45 M H z 95 M H z
Mod. Bit r ate/ 270 .8 33 Kb ps 270 .8 33 Kb ps 270 .8 33 Kb ps
Bit Period 3.692 us 3.692 us 3.692 us
T ime Slot Peri od/F r ame 576 .9 us 576 .9 us 576 .9 us
Period 4.615 ms 4.615 ms 4.615 ms
Mod ula ti on 0 .3 GMSK 0 .3 GMSK 0 .3 GMSK
MS Power 33 dBm~ 1 3 dB m 33 dB m~ 5 dB m 30 dB m~ 0 dBm
Powe r Cla ss 5 pcl ~ 15 pcl 5 pcl ~ 19 pcl 0 pcl ~ 15 pcl
Sensi ti vity - 10 2 dBm -10 2 dBm - 10 0 dBm
TDMA Mux 8 8 8
C ell Rad ius 35 Km 35 Km 2 Km
1-1
Specification
1-2. GSM TX power class
TX Power GSM900 TX Power DCS1800
control level control level
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