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GSM TELEPHONE
SGH-S410i
GSM TELEPHONE
CONTENTS
1. Specification
2. Flow Chart of Troubleshooting
3. Exploded Views and Parts List
4. Electrical Parts List
5. PCB Diagrams
6. Block Diagrams
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1. SGH-S410i Specification
1-1. GSM General Specification
GSM900
Phase 1
Freq. Band[MHz]
Uplink/Downlink
ARFCN range 1~124
Tx/Rx spacing 45MHz 45MHz 95MHz 80MHz
Mod. Bit rate/
Bit Period
Time Slot
Period/Frame
Period
Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
890~915
935~960
270.833kbps
3.692us
576.9us
4.615ms
EGSM 900
Phase 2
880~915
925~960
0~124 &
975~1023
270.833kbps
3.692us
576.9us
4.615ms
DCS1800
Phase 1
1710~1785
1805~1880
512~885 512~810
270.833kbps
3.692us
576.9us
4.615ms
PCS1900
1850~1910
1930~1990
270.833kbps
3.692us
576.9us
4.615ms
Power Class 5 p c l ~ 1 5 p c l 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sensitivity -102dBm -102dBm -100dBm -100dBm
TDMA Mux 8 8 8 8
Cell Radius 35Km 35Km 2Km -
1-1
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SGH-S410i Specification
1-2. GSM TX power class
TX Power
control level
533±2dBm
631±2dBm
729±2dBm
827±2dBm
925±2dBm
10 23±2 dBm
11 21±2 dBm
GSM900
TX Power
control level
0 30±3 dBm
1 28±3 dBm
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
DCS1800
TX Power
control level
0 30±3 dBm
1 28±3 dBm
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
PCS1900
12 19±2 dBm
13 17±2 dBm
14 15±2 dBm
15 13±2 dBm
16 11±3 dBm
17 9± 3dBm
18 7±3 dBm
19 5±3 dBm
7 16±3 dBm
8 14±3 dBm
9 12±4 dBm
10 10±4 dBm
11 8±4 dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
7 16±3 dBm
8 14±3 dBm
9 12±4 dBm
10 10±4 dBm
11 8±4 dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
1-2
15 0±5 dBm
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2. SGH-S410i Flow Chart of Troubleshooting
2-1.Baseband
2-1-1. Power ON
'Power ON' Does not work
Check the current consumption
Current consumption
≥
100mA ?
YES
Check the Vbat voltage
Voltage≥3.3V ?
YES
Check the pins of U401
C415≥1.8V ?
YES
C418 and C419 = 2.9V?
NO
NO
NO
NO
Download again
Charge the Battery
Check U401 and C415
YES
Checktheclocksignal
at pin#3 of OSC101
Freq.=13MHz,Vrms≥300mV
YES
Check the Initial operation
END
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C420=1.5V?
YES
2-1
NO
NO
Check U401 and C420
Checktheclockgeneration
circuit (OSC101, F100 pin#4)
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SGH-S410i Flow Chart of Troubleshooting
K12
VSIM
VRTC
LED2_DRV
LED1_DRV
RING_DRV
VIB_DRV
VLDO_7
VLDO_6
VL5S_B
VL5S_A
VLDO_5
VL4S_B
VL4S_A
VLDO_4
VLDO_3
VLDO_2
VLDO_1
VACC
CSN_PSC
SCLK_PSC
SDO_PSC
SDI_PSC
VEXT
VBAT
H11
G12
G13
F13
F15
C12
A14
C9
D10
B10
B11
A12
B12
A13
J12
G11
F14
K8
L8
N7
M7
E14
E13
VSIM
VCCB_2.9V
KEY_BL2
KEY_BL1
MOT
DCS_TX_EN
GSM_TX_EN
UP_CS
UP_SCLK
UP_SDO
UP_SDI
VCCD_1_8
C414
VCCA_2.9V
C415
VRF_2.9VVCCD_2.9V
C416 C417
C418
VCCD_1_5
C419
C420
C421
VRTC_2.9V
R405
S
O
P
G
E
N
M400
AFC
R108
C131
1
VT
2
GND
OSC101
VCC
OUT
VRF_2.9V
4
3
R124
C125
C132
C127
R112
VRF_2.9V
F100
15
NC
VCC
2
A
3
GND
R111
4
Y
L109
C126
C133
C128
R110
R109
CLK13M_TR
C129
CLK13M_MC
CLK13M_YMU
CLK13M_RF
2-2
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2-1-2. Initial
SGH-S410i Flow Chart of Troubleshooting
Initial Failure
The voltage at the C415=1.8V?
The voltage at the C419=2.9V?
YES
ThevoltageattheZD405
" Low --> High" ?
YES
There is 32.768KHz wave
form at the C216, C217 ?
YES
The voltage on R412 is
"Low --> High" ?
NO
NO
NO
NO
Check the U401
(If it has some problem,
it has to be replaced.)
Check the U401
(If it has some problem,
it has to be replaced.)
Check the OSC201
Check the OSC201
YES
The voltage is 2.9V
at the C416,C418,C419 ?
YES
LCD Display OK ?
YES
Sound operation OK ?
YES
END
2-3
NO
NO
NO
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Check the U401
Check the LCD part
Check the Audio part
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SGH-S410i Flow Chart of Troubleshooting
N
N
N
E
E
_
E
_
0
_
D
T
T
A
M
A
D
C
D
_
_
_
I
I
I
C
C
C
M
M
M
_
_
_
9
ADC_AUX2
ADC_AUX1
9
M
P
E
E
K
_
R
W
P
N
E
RTC_ALMN
_
G
Q
N
R
R
_
T
B
I
N
I
V
0
9
1
L
L
VREF
CREF
N
F
2
1
U
W
S
_
R
W
P
4
1
C
O
W
B
_
S
_
T
_
R
W
P
5
1
C
E
1
E
D
S
W
O
E
S
M
R
P
9
0
7
1
L
K
N
D15
E10
A10
E9
H10
C426
R407
R408
3
O
I
P
4
1
L
C
C
3
0
T
T
4
4
R
R
O
O
I
1
I
2
P
X
P
X
4
9
4
9
1
1
1
1
F
N
H
M
Q
E
P
R
E
K
E
L
6
K
N
C
4
R
M
T
S
O
I
R
Y
W
U
P
A
S
P
O
_
_
_
L
2
1
0
9
3
A
C
C
S
T
R
O
7
6
1
1
H
G
0
2
1
1
M
O
O
O
W
I
I
I
P
P
P
P
5
5
9
7
1
1
1
G
P
P
V
8
2
6
5
7
2
2
O
I
P
9
1
V
3
2
2
O
O
O
O
I
I
I
I
P
P
P
P
9
7
3
6
1
1
1
1
U
R
U
W
VBAT
VIB_EN
OSC201
INTRQ
PWR_KEEP
C217C216
N
O
_
G
I
J
N
O
_
R
W
P
F
U
B
_
1
W
S
P
RST
ZD405
2-4
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2-1-3. Sim Part
"Insert SIM" is displayed on the LCD
SGH-S410i Flow Chart of Troubleshooting
The voltage is 2.8V
at the pin #1 of CN401?
YES
Is there any signal
pin #2,3,4 of CN401 ?
YES
Check the SIM Card
NO
Check the U401
NO
Check the U401 & OSC201
END
2-5
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SGH-S410i Flow Chart of Troubleshooting
2-1-4. Microphone Part
Micro-phone does not work
Is the assembled status of
Microphone O.K?
YES
Check the DC bias voltage on
Mic p ath.
The voltage of C437 is
about 2.2V±10%?
YES
Is microphone OK?
YES
NO
NO
NO
Reassemble the microphone
Solder the microphone again
or Replace C437,C438,R430,
R433,R458,R453,C430,C432,
R421,R422
Check U401
END
2-6
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SGH-S410i Flow Chart of Troubleshooting
MICINP
MICOUTP
MICINN
MICOUTN
VCCA_2.9V
R428
C437
C438
C435
C436
R424
R457
C465
C466
R421
R422
C430
C432
C464
R458
R453
R430
R433
HPOUT-R
HPOUT-L
JACK_INT
EAR_L
EAR_R
MIC-
MIC+
C474 1UF
C434
1UFC473
MIC400
C433
C439
C440
2-7
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SGH-S410i Flow Chart of Troubleshooting
2-1-5. Speaker Part
There is no sound from speaker
Is the terminal of speaker O.K?
YES
Are there any signal
at the pin #40,42 of CN507?
YES
Thetypeofsoundfrom
YES
Are there any signal
at the pin #1,5 of U403?
Pin #2 of U403
is Low?
the speaker is Melody?
NO
NO
NO
NO NO
NO
Check
U402,
U401,
OSC201
Replace the speaker
Check the LCD module
&ReplaceCN507
NO
Are there any signal
at the pin #3,15 of U403?
YESYES
Pin #2 of U403
is High?
YES
Pin 14 of U403
is 3.4-4.2V?
NO
Pin 3 of U303
is High?
NO
Check U401
END
YES
Check U403
YES
Check U303
2-8
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YES
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2-1-6. Camera Part
Camera function does not work
SGH-S410i Flow Chart of Troubleshooting
Check the connect CN507?
YES
Pin#4ofU306=1.8V?
YES
Pin#9ofU302=2.8V?
YES
Pin#3 of OSC300 is 24.5MHz?
YES
NO
NO
NO
NO
Connect the CN507
Check the U306&R376
YES
Pin#2ofU302=High?
Pin#3ofQ301=1.8V?
NO
Pin#1ofQ301=Low?
NO
YES
YES
Check
OSC201
Replace
OSC300
Check
Q301
Is that clock signal at the
pin #30 of CN507?
YES
Pin#56 of CN507 is High?
END
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NO
NO
NO
Check
OSC201
Check
U300
2-9