Samsung SGH-S410i User manual

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
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1-1. GSM General Specification
GSM900
Phase 1
EGSM 900
Phase 2
DCS1800
Phase 1 PCS1900
Freq. Band[MHz]
Uplink/Downlink
890~915
935~960
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
ARFCN range 1~124 0~124 &
975~1023 512~885 512~810
Tx/Rx spacing 45MHz 45MHz 95MHz 80MHz
Mod. Bit rate/
Bit Period
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
Time Slot
Period/Frame
Period
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class 5pcl ~ 15pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sensitivity -102dBm -102dBm -100dBm -100dBm
TDMA Mux 8 8 8 8
Cell Radius 35Km 35Km 2Km -

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SGH-S410i Specification
1-2
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1-2. GSM TX power class
TX Power
control level GSM900
533±2dBm
631±2dBm
729±2dBm
827±2dBm
925±2dBm
10 23±2 dBm
11 21±2 dBm
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
TX Power
control level DCS1800
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
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
TX Power
control level PCS1900
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
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

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2. SGH-S410i Flow Chart of Troubleshooting
2-1
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2-1.Baseband
2-1-1. Power ON
'Power ON' Does not work
Check the current consumption
Current consumption
≥100mA ?
Check the Vbat voltage
Download again
Voltage ≥3.3V ?
Check the pins of U401
C415 ≥1.8V ?
Check the Initial operation
END
C418 and C419 = 2.9V?
Charge the Battery
Checktheclockgeneration
circuit (OSC101, F100 pin#4)
Checktheclocksignal
at pin#3 of OSC101
Freq.=13MHz,Vrms ≥300mV
Check U401 and C420
Check U401 and C415
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
C420=1.5V?

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SGH-S410i Flow Chart of Troubleshooting
2-2
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VCCD_1_8
C414
C421
M400
G
E
NS
O
P
VCCD_1_5
C416 C417
R405
B12
VLDO_4
B10
VLDO_5
A14
VLDO_6
C12
VLDO_7
H11
VRTC
K12
VSIM
E14
VEXT
F15
VIB_DRV
A12
VL4S_A
B11
VL4S_B
D10
VL5S_A
VL5S_B C9
G11
VLDO_1
J12
VLDO_2
A13
VLDO_3
F14
VACC
E13
VBAT
L8
SCLK_PSC
SDI_PSC M7
N7
SDO_PSC
F13
RING_DRV
G13
LED1_DRV
G12
LED2_DRV
CSN_PSC K8
C415
VCCA_2.9V
C420
VCCB_2.9V
C419
VRF_2.9VVCCD_2.9V
C418
KEY_BL2
KEY_BL1
UP_CS
UP_SDO
UP_SDI
UP_SCLK
VSIM
DCS_TX_EN
GSM_TX_EN
MOT
VRTC_2.9V
C125
C132
R124
L109
R109
R111
C129
C126
R110
R108
2A
3GND
NC
15
VCC
Y4
F100
VRF_2.9V
R112
C131
C127
VRF_2.9V
C128
OSC101
GND
2OUT 3
4
VCC
1VT
C133
CLK13M_MC
AFC
CLK13M_TR
CLK13M_RF
CLK13M_YMU

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SGH-S410i Flow Chart of Troubleshooting
2-3
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2-1-2. Initial
The voltage at the C415=1.8V?
The voltage at the C419=2.9V?
Initial Failure
ThevoltageattheZD405
" Low --> High" ?
There is 32.768KHz wave
form at the C216, C217 ?
The voltage on R412 is
"Low --> High" ?
The voltage is 2.9V
at the C416,C418,C419 ?
LCD Display OK ?
Sound operation OK ?
END
Check the OSC201
Check the OSC201
Check the U401
Check the LCD part
Check the Audio part
YES
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
NO
YES
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.)

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SGH-S410i Flow Chart of Troubleshooting
2-4
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R408
A10
VREF
N
E
_
G
N
R
_
B
I
V
9
L
5
1
CN
1
W
S
_
R
W
P
4
1
C2
W
S
_
R
W
P
9
KO
_
T
E
S
E
R
H10
RTC_ALMN
7
LF
U
B
_
1
W
S
P
9
MP
E
E
K
_
R
W
P
0
1
NE
D
O
M
0
1
LQ
R
T
N
I
CREF E9
D15
ADC_AUX2
E10
ADC_AUX1
C426
VBAT
ZD405
R407
RST
F
U
B
_
1
W
S
P
INTRQ
N
O
_
G
I
J
N
O
_
R
W
P
PWR_KEEP
VIB_EN
C
T
R
1
X
9
1
H
9
1
FC
T
R
2
X
4
1
LN
E
_
D
M
C
_
I
C
M
_
9
3
O
I
P
N
E
_
T
A
D
_
I
C
M
_
0
4
O
I
P
4
1
M
4
1
NN
E
_
0
T
A
D
_
I
C
M
_
3
4
O
I
P
5
G6
4
O
I
P
_
1
M
W
P
N
M
R
A
L
A
C
T
R
7
1
H
9
1
U
8
2
O
I
P
7
1
W
2
3
O
I
P
3
1
R
5
1
PP
E
E
K
R
W
P
_
9
1
O
I
P
Q
E
R
K
L
C
S
Y
S
_
0
2
O
I
P
9
1
P
9
1
V5
2
O
I
P
6
2
O
I
P
6
1
U
7
2
O
I
P
6
1
GT
U
O
2
3
C
S
O
0
1
O
I
P
7
1
V
OSC201
C217C216

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SGH-S410i Flow Chart of Troubleshooting
2-5
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2-1-3. Sim Part
The voltage is 2.8V
at the pin #1 of CN401? Check the U401
"Insert SIM" is displayed on the LCD
END
Check the SIM Card
YES
NO
NO
YES
Is there any signal
pin #2,3,4 of CN401 ? Check the U401 & OSC201

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SGH-S410i Flow Chart of Troubleshooting
2-6
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2-1-4. Microphone Part
Micro-phone does not work
Is the assembled status of
Microphone O.K?
YES
Reassemble the microphone
NO
Check the DC bias voltage on
Mic path.
The voltage of C437 is
about 2.2V±10%?
NO
Solder the microphone again
or Replace C437,C438,R430,
R433,R458,R453,C430,C432,
R421,R422
Is microphone OK? NO Check U401
END
YES
YES

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SGH-S410i Flow Chart of Troubleshooting
2-7
This Document can not be used without Samsung's authorization
R458
R453
C436
R424
C465
R428
C433
R430
R457
C435
C440
C474 1UF
MIC400
C439
1UFC473
VCCA_2.9V
R433
C434
C464
C432
C437
R421
R422
C430
C438
C466
HPOUT-R
HPOUT-L
EAR_R
EAR_L
MIC+
JACK_INT
MIC-
MICOUTN
MICINN
MICINP
MICOUTP