Samsung Service Manual SGH-C520.pdf

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Samsung SGH-C520 Service manual. www.s-manuals.com
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
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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. ChartofTroubleshooting
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) 2 Mega 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
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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
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1. Specification
1-1. GSM General Specification
GSM 900
Phase 1
EGSM 900
Phase 2
DCS1800
Phase 1
Freq. Band[MHz]
Uplink/Downlink
890~915
935~960
880~915
925~960
1710~1785
1805~1880
ARFCN range
1~124
0~124 &
975~1023
512~885
Tx/Rx spacing
45 MHz
45 MHz
95 MHz
Mod. Bit rate/
Bit Period
270.833 Kbps
3.692 us
270.833 Kbps
3.692 us
270.833 Kbps
3.692 us
Time Slot Period/Frame
Period
576.9 us
4.615 ms
576.9 us
4.615 ms
576.9 us
4.615 ms
Modulation
0.3 GMSK
0.3 GMSK
0.3 GMSK
MS Power
33 dBm~13 dBm
33 dBm~5 dBm
30 dBm~0 dBm
Power Class
5 pcl ~15pcl
5 pcl ~19pcl
0 pcl ~15pcl
Sensitivity
-102 dBm
-102 dBm
-100 dBm
TDMA Mux
8
8
8
Cell Radius
35 Km
35 Km
2 Km
1-1
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Specification
1-2. GSM TX power class
TX Power
control level
GSM900
TX Power
control level
DCS1800
5
33±2 dBm
0
30±3 dBm
6
31±2 dBm
1
28±3 dBm
7
29±2 dBm
2
26±3 dBm
8
27±2 dBm
3
24±3 dBm
9
25±2 dBm
4
22±3 dBm
10
23±2 dBm
5
20±3 dBm
11
21±2 dBm
6
18±3 dBm
12
19±2 dBm
7
16±3 dBm
13
17±2 dBm
8
14±3 dBm
14
15±2 dBm
9
12±4 dBm
15
13±2 dBm
10
10±4 dBm
16
11±3 dBm
11
8±4 dBm
17
9±3 dBm
12
6±4 dBm
18
7±3 dBm
13
4±4 dBm
19
5±3 dBm
14
2±5 dBm
15
0±5 dBm
1-2
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