Samsung Service Manual SGH-E840, Service Manual do Tel.komórkowych, Samsung - Service Manual
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GSM TELEPHONE
SGH-E840
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.
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
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/WCDMA General Specification
EGSM 900
Phase 2
EGSM 900
Phase 2
DCS1800
Phase 1
PCS1900
Freq. Band[MHz]
Uplink/Downlink
824~849
869~894
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
ARFCN range
128~251
0~124 &
975~1023
512~885
512~810
Tx/Rx spacing
45 MHz
45 MHz
95 MHz
80 MHz
Mod. Bit rate/
Bit Period
270.833 kbps
3.692 us
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
576.9 us
4.615 ms
Modulation
0.3 GMSK
0.3 GMSK
0.3 GMSK
0.3 GMSK
MS Power
33 dBm~5 dBm 33 dBm~5 dBm 30 dBm~0 dBm
30 dBm~0 dBm
Power Class
5 pcl ~19pcl
5 pcl ~19pcl
0 pcl ~15pcl
0 pcl ~15pcl
Sensitivity
-102 dBm
-102 dBm
-100 dBm
-100 dBm
TDMA Mux
8
8
8
8
Cell Radius
35 Km
35 Km
2 Km
-
1-1
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This Document can not be used without Samsung's authorization
Specification
1-2. GSM TX power class
TX Power
control level
EGSM850
EGSM900
TX Power
control level
DCS1800
TX Power
control level
PCS1900
5
33±2 dBm
0
30±3 dBm
0
30±3 dBm
6
31±2 dBm
1
28±3 dBm
1
28±3 dBm
7
29±2 dBm
2
26±3 dBm
2
26±3 dBm
8
27±2 dBm
3
24±3
dBm
3
24±3 dBm
9
25±2 dBm
4
22±3 dBm
4
22±3 dBm
10
23±2
dBm
5
20±3 dBm
5
20±3 dBm
11
21±2 dBm
6
18±3 dBm
6
18±3 dBm
12
19±2 dBm
7
16±3 dBm
7
16±3
dBm
13
17±2 dBm
8
14±3 dBm
8
14±3 dBm
14
15±2 dBm
9
12±4 dBm
9
12±4 dBm
15
13±2 dBm
10
10±4 dBm
10
10±4 dBm
16
11±3 dBm
11
8±4 dBm
11
8±4 dBm
17
9± 3dBm
12
6±4 dBm
12
6±4
dBm
18
7±3 dBm
13
4±4 dBm
13
4±4 dBm
19
5±3 dBm
14
2±5 dBm
14
2±5 dBm
15
0±5 dBm
15
0±5 dBm
1-2
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
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