SVC Manual for SGH-D410.pdf

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GSM TELEPHONE
SGH-D410
SERVICE
GSM TELEPHONE
1.
2.
3.
4.
5.
6.
Manual
CONTENTS
Specification
Flow Chart of Troubleshooting
Exploded Views and Parts List
Electrical Parts List
Block Diagrams
PCB Diagrams
1. SGH-D410 Specification
1. GSM General Specification
GSM900
Phas e 1
Fr eq. Band[MHz]
Uplink/ Downli nk
ARFCN r ange
890~915
935~960
1~124
EGSM 900
Phas e 2
880~915
925~960
0~124 &
975~1023
45MHz
270.833kbps
3.692us
576.9us
4.615ms
0.3GMSK
33dBm~5dBm
5pcl ~ 19pcl
-102dBm
8
35Km
DCS1800
Phas e 1
1710~1785
1805~1880
512~885
PCS1900
1850~1910
1930~1990
512~810
Tx/ Rx s paci ng
Mod. Bit rate/
Bit Period
Ti me Slot
Peri od/Fr ame Per iod
Modulati on
MS Power
Power Cl a ss
Sensit ivit y
TDMA Mux
Cell Radius
45MHz
270.833kbps
3.692us
576.9us
4.615ms
0 . 3 GM S K
33dBm~13dBm
5pcl ~ 15pcl
- 102dBm
8
35Km
95MHz
270.833kbps
3.692us
576.9us
4.615ms
0 . 3 GM S K
30dBm~0dBm
0pcl ~ 15pcl
- 100dBm
8
2Km
80MHz
270.833kbps
3.692us
576.9us
4.615ms
0.3GMSK
30dBm~0dBm
0pcl ~ 15pcl
- 100dBm
8
-
1-1
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SGH-D410 Specification
2. GSM TX power class
TX Power
control
level
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
GSM900
33±2dBm
31±2dBm
29±2dBm
27±2dBm
25±2dBm
23±2dBm
21±2dBm
19±2dBm
17±2dBm
15±2dBm
13±2dBm
11±2dBm
9±2dBm
7±2dBm
5±2dBm
0
1
2
3
4
5
6
7
8
9
TX Power
control
level
DCS1800
30±3dBm
28±3dBm
26±3dBm
24±3dBm
22±3dBm
20±3dBm
18±3dBm
16±3dBm
14±3dBm
12±4dBm
10±4dBm
8±4dBm
6±4dBm
4±4dBm
2±5dBm
0±5dBm
0
1
2
3
4
5
6
7
8
9
TX Power
control
level
DCS1800
30±3dBm
28±3dBm
26±3dBm
24±3dBm
22±3dBm
20±3dBm
18±3dBm
16±3dBm
14±3dBm
12±4dBm
10±4dBm
8±4dBm
6±4dBm
4±4dBm
2±5dBm
0±5dBm
10
11
12
13
14
15
10
11
12
13
14
15
1-2
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2. SGH-D410 Flow Chart of Troubleshooting
1.Baseband
1. Power ON
'Power On' does not work
Yes
Check the current
consumption more
than 100mA
No
Download again
Yes
No
Charge the Battery
Check the VBAT
more than 3.3V
Yes
Check the pin
11 of U102 is more
than 2.8V
No
Check the C117
Yes
No
U102 pin 33,39
= 2.8V
Yes
U102 pin 9
= 1.8V
Yes
No
Check U102 and C116
Check the clock
signal at pin4 of
OSC801
Freq=13MHz ?
Vrms≥300mV ?
Vpp is around
900mVpp ?
No
Check the clock generation
circuit
Yes
Check the initial operation
END
2-1
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SGH-D410 Flow Chart of Troubleshooting and Circuit Diagrams
2. Initial
Initial Failure
Yes
Check the signal at the
pin 21 of U102 is
"High" when the phone
is boot on
No
Check the pin 46,20 and Q103
Yes
No
Check the key program and
the key pcb
Check the key metrix
of the U601
Yes
Check the
VCCD,VCC_1.8A
of U601
Yes
Check the vccd of
U601 is around 2.8V
Yes
Check LCD connector CN201 in the main
PBA and the FPCB connector
Yes
END
No
Check the soldered status of
U601,OSC601
No
Check the soldered status of
U601,osc601
3. Sim Part
Phone can't access SIM card
Yes
Check the pin 1 of
CN101. voltage 3V ?
Yes
Check the SIM
connector's (CN101)
connection to SIM
card
Yes
Check the circuit around CN101
input
circuitry
Yes
Check the circuit around U601
output
and vlotage supply circuitry
Yes
END
No
Check the related circuit of
U601 and U102
No
Check the related circuit of
CN101
No
Check the circuit related to
U102
No
Resolder or change CN101
2-2
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