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
This Document can not be used without Samsung's authorization
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
This Document can not be used without Samsung's authorization
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
This Document can not be used without Samsung's authorization
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

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SGH-S410i Flow Chart of Troubleshooting
2-8
This Document can not be used without Samsung's authorization
2-1-5. Speaker Part
Is the terminal of speaker O.K? NO Replace the speaker
Are there any signal
at the pin #40,42 of CN507?
NO Check the LCD module
&ReplaceCN507
There is no sound from speaker
YES
YES
Thetypeofsoundfrom
the speaker is Melody?
YES NO
Are there any signal
at the pin #1,5 of U403?
Are there any signal
at the pin #3,15 of U403?
Check
U402,
U401,
OSC201
NO NO
Pin #2 of U403
is Low?
Pin #2 of U403
is High?
Check U403
NO NO
YES YES
YESYES
END
Pin 14 of U403
is 3.4-4.2V?
YES
Pin 3 of U303
is High?
NO
Check U303
YES
NO
Check U401

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SGH-S410i Flow Chart of Troubleshooting
2-9
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2-1-6. Camera Part
Camera function does not work
Check the connect CN507?
NO Connect the CN507
Pin#4ofU306=1.8V?
NO
NO
Pin#3 of OSC300 is 24.5MHz?
NO
Pin#9ofU302=2.8V?
Check
OSC201
END
YES
YES
YES
YES
Is that clock signal at the
pin #30 of CN507?
NO
Pin#2ofU302=High?
YES
Check the U306&R376
Check
OSC201
NO
NO
Pin#56 of CN507 is High? Check
U300
Replace
OSC300
YES
Check
Q301
Pin#3ofQ301=1.8V?
NO
YES
Pin#1ofQ301=Low?
NO
YES

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SGH-S410i Flow Chart of Troubleshooting
2-10
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1
3
2
Q301
2.8V_VCAM
HERA_1_8
100NF
C346
R303
C362
C367
R380
2.8V_VCAM
R302
D6
F6
VDDI
VDDICD H1
0
1
B2
N
I
X
2
T
U
O
X
0
1
A
0
E
D
O
M
_
T
G2
USB_DM
USB_DP G1
UVDDI G4
K9
VDDAC
D5
VDDC
VDDC E5
VDDC F5
VDDI
9
D
S
_
M
7
AN
_
R
W
_
M
C
N2
1
C
N
A9
PGND
PVDD B9
3
B
E
B
O
R
T
S
E3
SVDDI
0
1
K
5
1
D
S
_
M
8
G2
D
S
_
M
3
D
S
_
M
0
1
F
9
F4
D
S
_
M
5
D
S
_
M
8
F
7
F6
D
S
_
M
0
1
E7
D
S
_
M
9
E8
D
S
_
M
7
E
8
C
0
1
G0
D
S
_
M
1
D
S
_
M
9
G
0
1
D
S
_
M
8
E
1
1
D
S
_
M
0
1
D
9
D2
1
D
S
_
M
3
1
D
S
_
M
7
D
8
D4
1
D
S
_
M
0
1
C
6
C
S
D
A
_
M
8
B
6
AN
_
S
C
_
M
6
BE
L
O
H
_
M
R
T
N
I
_
M
7
C
N
_
D
R
_
M
8
A
7
BN
_
T
E
S
E
R
_
M
0
A
S
_
M
9
C
1
A
S
_
M
L_DA5
L_DA6
K2
L_DA7
K3
L_DA8
J2
J3 L_DA9
L_RD_N
J8
L_RESET_N
K7
J7 L_WR_N
N
_
S
C
_
S
M
L_DA13
L_DA14
H5
G3 L_DA15
L_DA16
H6
G6 L_DA17
L_DA2
K5
K4 L_DA3
L_DA4
J4
K1
LS_CS_N
L_ADS
G7
H7 L_CS_N
L_DA0
K6
J6 L_DA1
L_DA10
H2
H3 L_DA11
L_DA12
H4
J5
G5
J1
GND
0
_
O
I
P
G5
C
5
B
1
_
O
I
P
G
2
_
O
I
P
G5
A
4
C
3
_
O
I
P
G
4
_
O
I
P
G4
B
4
A
5
_
O
I
P
G
H8
9
H
K
C
S
M
_
D9
J
8
K
N
I
A
T
A
D
S
_
D
T
U
O
A
T
A
D
S
_
D0
1
H
GND D4
E4
GND
GND F4
E6
GND
GND
2
A
K
L
C
P
_
C2
B
1
B
N
D
W
P
_
C
3
A
T
S
R
_
C
K
C
S
_
C1
C
2
C
A
D
S
_
C
1
A
S
V
_
C
0
1
J
K
C
B
_
D
K
C
R
L
_
D
2
D
1
D
2
D
_
C
3
D
_
C2
E
1
E
4
D
_
C
5
D
_
C1
F
6
D
_
C2
F
7
D
_
C3
F
3
C
S
H
_
C
K
L
C
M
_
C
U300
3
D
0
D
_
C
1
D
_
C
VCCD_2.9V
OSC300
2
43
1
1UF
C328
C327 C326
1UF
100NF
C330
R318
C329
)
5
(
D
)
7
(
D
)
9
(
D
)
1
1
(
D
)
4
(
D
)
4
1
(
D
)
2
1
(
D
)
6
(
D
)
3
1
(
D
)
0
1
(
D
)
8
(
D
)
2
(
D
)
5
1
(
D
LCDC_CS
CAM_RST
CP_OEN
LCDC_INT
LCD_WEN
L_ADS
CP_WEN
M_HOLD
MLCD_CS
M_CLK
D[0:15]
)
0
(
D
)
3
(
D
)
1
(
D
VER_REF
HOR_REF
LCD_AD_[00:15]
LCD_AD_(09)
LCD_AD_(08)
LCD_AD_(07)
LCD_AD_(06)
LCD_AD_(05)
LCD_AD_(04)
LCD_AD_(03)
LCD_AD_(02)
LCD_AD_(15)
LCD_AD_(14)
LCD_AD_(13)
LCD_AD_(12)
LCD_AD_(11)
LCD_AD_(10)
LCD_AD_(01)
LCD_AD_(00)
A(1)
P_CLK
D_SDIN
A(2)
)
7
(
D
_
M
A
C
)
6
(
D
_
M
A
C
)
5
(
D
_
M
A
C
)
4
(
D
_
M
A
C
)
3
(
D
_
M
A
C
)
2
(
D
_
M
A
C
)
1
(
D
_
M
A
C
)
0
(
D
_
M
A
C
CAM_D(0:7)
SUB_L_CS
SDA
SCL
M_HOLD
FLASH_RESET
A(18)
)
8
(
A
LCD_RD
D_LRCK
D_BCK
D_MSCK
D_SDOUT

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SGH-S410i Flow Chart of Troubleshooting
2-11
This Document can not be used without Samsung's authorization
C519
C522
778 8
99
53 54
54
55
55 56
56
57
57 58
58
59
59
66
60
60
47
47 48
48
49
49
55
50
50
51
51 52
52
53
44
40 40
41
41 42
42
43
43 44
44
45
45 46
46
32 32
33 33 34 34
35 35 36 36
37 37 38 38
39 39
24
25
25 26
26
27
27 28
28
29
29
33
30 30
31 31
18 18
19 19
22
20 20
21 21 22 22
23 23 24
10 10
11 11 12 12
13 13 14 14
15 15 16 16
17 17
CN507
11
C516
C517
C524
OLED_BACK_EN
2.8V_VCAM
KEY_COL(0)
LCD_RD
CAM_RST
KEY_COL(2)
LCD_AD(03)
LCD_AD(05)
L_ADS
SUB_L_CS
FLASH_RESET
SCL
SDA
M_CLK
P_CLK
VER_REF
HOR_REF
LCD_AD(01)
SPK1P
SPK1N
MP3_MIC
MP3_GND
LCD_WEN
LCD_AD(14)
LCD_AD(12)
LCD_AD(10)
LCD_AD(08)
VCCD_2.9V
LCD_AD(06)
LCD_AD(04)
LCD_AD(02)
LCD_AD(00)
LCD_AD(07)
LCD_AD(09)
LCD_AD(11)
LCD_AD(13)
LCD_AD(15)
1.8V_VCAM
CAM_DA(7)
CAM_DA(6)
CAM_DA(5)
CAM_DA(4)
CAM_DA(3)
KEY_ROW(5)
DIM_EN
MOT
VBAT
CAM_DA(2)
CAM_DA(1)
CAM_DA(0)
FLASH_EN1
MLCD_CS
KEY_COL(1)
BRIGHTNESS
2.8V_VCAM
C312
C311
10
VOUT1
VOUT2 9
C308
1314
D
N
G
D
N
G
1516
D
N
G
N/C 7
8
POR
SET
5
VIN
1
CBYP
4
2EN1
EN2
3
6
GND
D
N
G
1112
D
N
G
D
N
G
VBAT
U302
1.8V_VCAM
C310
VCAM_EN

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SGH-S410i Flow Chart of Troubleshooting
2-12
This Document can not be used without Samsung's authorization
2-1-7. Mp3 Display Part
NO
Replace the Earphone
Are there any signal
at the pin #8,12 of U403?
NO
Check C439,440,473,474,452,448
& L401,402, ZD400,401
There is no MP3 sound from Earphone
YES
YES
Are there any signal
at the R350,351?
NO
The voltage of C334
is 3.3V?
NO
YES
YES
END
Check the U301
Are there any signal
at the pin #4,6 of CN400?
Are there any signal
at the pin #9,13 of U403?
NO
YES Pin #10 of U403
is Low?
NO
YES
Pin 14 of U403
is 3.3-4.2V?
YES
Pin 3 of U303
is High?
NO
YES
Check
OSC201
Check
U403
Check
U303
END
NO
Check U401
Check
R350,351
The voltage of C344
is 2.5V?
NO
YES
Pin 2 of U302
is High?
Check
U302
NO
YES
Check
OSC201
Check the U300
Check the OSC201

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SGH-S410i Flow Chart of Troubleshooting
2-13
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C302C301
H5
J5
SDTO
SPN1
E8
E9 SPN2
F8 SPP1
F9 SPP2
G1
VCOC
D2 VCOM
XTI|MCKI H9
G8
XTO
2NC2
A9
NC3
NC4 B7
NC5 C3
NC6 J1
H7
NC7
NC8 J9
PDN J2
F1
PVDD
PVSS G2
SDTI
J7
N
I
M
7
A
T
U
O
C
O
M2
A
MOUT+
A5
B6 MOUT-
6
A2
T
U
O
M
MPE
C1
C2 MPI
B8 MUTET
S
|
M9
G
NC1
1
B1 EXT
A8 HPL
HPR
B9
HVDD1
D8
D9 HVDD2
C8 HVSS1
HVSS2
C9
J4
I2C
INT
D1
J6
LRCK
MCKO
3
AL
P
E
E
B
4
AM
P
E
E
B
R
P
E
E
B
3
B
BICK H6
H1
CAD0
CCLK|SCL H3
J3
CDTI|SDA
CDTO H4
H2
CSN|CAD
8
HD
D
V
D
S
S
V
D
8
J
2
B
N
I
A
+
N
I
X
U
A
4
B
5
B-
N
I
X
U
A1
D
D
V
A2
E
2
F
2
D
D
V
A
1
E
S
S
V
A
U301
C355
100NF
C324
3.3V_SW_AK
R378
2.8V_VCAM
R377
C338
C344
10UF
C334
10V
R351
R350
R320
C332
C333
9
1
3
R
C323
C341
R322
R352
C343
2.8V_VCAM
C342
2.8V_VCAM
C365
D_LRCK
D_BCK
D_MSCK
D_SDOUT
P_MODE
MP3_MIC
MP3-
MP3+
LOUT
ROUT
SCL
SDA
D_SDIN
D
N
G
D
N
G
1516
D
N
G
N/C
5
8
N/C
N/C 7
VIN
110
VOUT1
VOUT2 9
4CBYP
2EN1
EN2
3
6
GND
D
N
G
1112
D
N
G
D
N
G
1314
U303
3.3V_SW_AK
C361
VBATVCCA_2.9V
USB_3.3V
C315
1
3
2
USB_5V
C314
Q305
USB_DET

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SGH-S410i Flow Chart of Troubleshooting
2-14
This Document can not be used without Samsung's authorization
21 NC
NC
22
+
V
14
4S1 11
2
S
4
1316
1
D
D2
4
8
3
D
12
D4
D
N
G
6
D
N
G
17
1-2IN
2
1
S
1
15
1S2
1
32S1
2
S
2
5
10
3-4IN
7
1
S
3
3S2
9
U403
R464
R471
R472
F400
R410
C463
10V
1UF
VBAT
C476
C475
C477 C478
SPK1N
AOUTAN
AUDIO_OUT_SEL
EAR_R
EAR_L
LOUT
AOUTBN
ROUT
EAR_OUT_SEL
AOUTBP
MELODY+
SPK1P
AOUTAP
MELODY-
C448
4
0
4
D
Z
C450
L402
C449
R423
3
0
4
D
Z
C467
R429
0
0
4
D
Z
3.3V_SW_AK
C471
C451
VCCD_1_8
C440
VCCD_1_8
2
0
4
D
Z
C470
C474 1UF
C439
1UFC473
G
12 13
GG
14
15
G
G16
G17
18G
33
44
55
66
77
88
99
G
11
CN400
11
10
10
22
C452
6
0
4
D
Z
R473
L401
C468
1
0
4
D
Z
HPOUT-R
HPOUT-L
EAR_R
EAR_L
EAR_CHECK
EAR_SWITCH
JACK_INT

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SGH-S410i Flow Chart of Troubleshooting
2-15
This Document can not be used without Samsung's authorization
2-2.RF
2-2-1. EGSM RX
Continuous RX ON
RF Input : 62 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
NO
U106 Check
Pin #9 ≥-65dBm ?
U106 Check
Pin #11 ≥-65dBm ?
U103 Check
Pin#20,21 ≥-65dBm ?
Check soldered status of
L114,L115,C145,L116,C109
C108,L118,V101
Resolder or Change
U106 Resolder or Change
U103 Check
Pin#9,32=Clean 2.9V?
U103 Check
Pin#28,1,2,3=100mV?
U401,C418,100,130
Check or resolder
Check U401
NO
NO
YES
YES
YES
YES
NO
YES
U103 Check
Pin #8 : 13MHz ?
Vpp : 860mV?
OSC101 Check
Pin #3 : 13MHz ?
Vpp : 950mV?
OSC101 Check
Pin #4 = 2.8V ?
U103
Change or resolder
NO
NO NO
R112,C132
resolder
OSC101
Change or resolder
YES YES YES
NO
Check soldered status of
C120,121,L108,F103
F103 Check
Pin #1 ≥-65dBm ?
Check soldered status of
L113,V102,L120
Resolder or Change
NO
YES
NO

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SGH-S410i Flow Chart of Troubleshooting
2-16
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2-2-2. DCS RX
Continuous RX ON
RF Input : 660 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
NO
U106 Check
Pin #9 ≥-65dBm ?
U106 Check
Pin #1 ≥-65dBm ?
U103 Check
Pin#18,19 ≥-65dBm ?
Check soldered status of
L114,L115,C145,L116,C109
C108,L118,V101
Resolder or Change
U106 Resolder or Change
U103 Check
Pin#9,32=Clean 2.8V?
U103 Check
Pin#28,1,2,3=100mV?
U401,C418,100,130
Check or resolder
Check U401
NO
NO
YES
YES
YES
YES
NO
YES
U103 Check
Pin #8 : 13MHz ?
Vpp : 860mV?
OSC101 Check
Pin #3 : 13MHz ?
Vpp : 950mV?
OSC101 Check
Pin #4 = 2.9V ?
U103
Change or resolder
NO
NO NO
R112,C132
resolder
OSC101
Change or resolder
YES YES YES
NO
Check soldered status of
C115,C119,L105,F102
F102 Check
Pin #1 ≥-65dBm ? Check soldered status of
L112,C148
NO
YES
NO

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SGH-S410i Flow Chart of Troubleshooting
2-17
This Document can not be used without Samsung's authorization
2-2-3. PCS RX
Continuous RX ON
RF Input : 660 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
NO
U106 Check
Pin #9 ≥-65dBm ?
U106 Check
Pin #3 ≥-65dBm ?
U103 Check
Pin#16,17 ≥-65dBm ?
Check soldered status of
L114,L115,C145,L116,C109
C108,L118,V101
Resolder or Change
U106 Resolder or Change
U103 Check
Pin#9,32=Clean 2.8V?
U103 Check
Pin#28,1,2,3=100mV?
U401,C418,100,130
Check or resolder
Check U401
NO
NO
YES
YES
YES
YES
NO
YES
U103 Check
Pin #8 : 13MHz ?
Vpp : 860mV?
OSC101 Check
Pin #3 : 13MHz ?
Vpp : 950mV?
OSC101 Check
Pin #4 = 2.8V ?
U103
Change or resolder
NO
NO NO
R112,C132
resolder
OSC101
Change or resolder
YES YES YES
NO
Check soldered status of
C111,113,L104,F101
F101 Check
Pin #1 ≥-65dBm ? Check soldered status of
C155,L119
NO
YES
NO
U106 Check
Pin #2 = High ? U401 Check & Change
NO
YES