8-1. Components Layout
Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any
content or data from this document without Samsung’s written authorization is
strictly prohibited.
8. Level 3 Repair
AP
MT
6769
V
AUDIO CODEC
MAIN PMIC
MT
6358
AUDIO CODEC
FCAM_MIPI[0:3]
FCAM_SENSOR_I2C_1P8
FRONT_CAM
13M
OCTA
DISPLAY
FHD
+
6
.
4
"
MIPI
_
DSI
0
_
D
[
0
:
3
]
TSP
_
I
2
C
EAR
JACK
/
MIC
EAR
_
MIC
_
P
/
N
EAR
_
L
_
DET
EAR
_
OUT
_
FB
SUB MIC
SUB
_
MIC
_
P
/
N
MAIN MIC
MA
IN
_
MIC
_
P
/
N
RCV CON
RCV
_
P
/
N
POWER KEY
POWER
_
KEY
MOTOR
MOTOR
_
EN
SPK
AMP
SPK
_
I
2
S
3
VOL_UP
VOLUME
KEY
AUD_DAT_MOSI[0:1], AUD_CLK/SYNC_MOSI
AUD_DAT_MISO[0:1], AUD_CLK/SYNC_MISO
DVDD_PROC_B/PROC_L/CORE/MODEM/
GPU_PMIC_FB/GND
PWRAP_SPI0
SYSRSTB
SRCLKENA0/1, WATCHDOG, RTC32K_CK
OSC
X
2
U
026000
B
8
1
H
B
Z
-
DHPZ
IF PMIC
SM
5714
MAIN FLASH
USB
_
AP
_
D
_
P
/
N
(
USB
)
AP
_
UART
_
TXD
/
RXD
(
UART
)
MST
_
DATA
_
A
/
B
FG
_
IF
_
PMIC
_
I
2
C
(
I
2
C
)
BATTERY
CON
FG
_
SENSE
_
P
/
N
IF CON
USB
_
D
_
P
/
N
,
CC
1
/
2
WATER
_
DET
SENSOR_SPI
6AXIS SENSOR
LSM6DSOTR
SENSOR_I2C_1P8
Magnetic SENSOR
MMC
5633
NJ
REAR
_
CAM
OIS
_
48
M
BOKEH
_
2
M
ULTRA
WIDE
_
8
M
MACRO
_
2
M
RCAM
1
_
MIPI
[
0
:
3
]
RCAM
1
_
SENSOR
_
I
2
C
_
1
P
8
RCAM
1
_
3
_
4
_
FCAM
_
EEP
_
I
2
C
_
1
P
8
R
CAM
2
_
MIPI
[
0
]
RCAM
2
_
SENSOR
_
I
2
C
_
1
P
8
RCAM
3
_
MIPI
[
0
:
3
]
RCAM
3
_
SENSOR
_
I
2
C
_
1
P
8
RCAM
4
_
MIPI
[
0
:
1
]
RCAM
4
_
SENSOR
_
I
2
C
_
1
P
8
MEMORY
4
+
64
GB
(
KMDH
6001
DA
-
B
422
)
EMMC
_
D
[
0
:
7
]
LPDDR
4
A
_
DQ
([
0
:
15
])
,
DQS
LPDDR
4
B
_
DQ
([
0
:
15
])
,
DQS
SM
-
A
225
F
_
REV
01
Block Diagram
(
BB
)
VOL_DN
AP_MCU_I2C_1P8
OIS MCU
STM32G051F8Y6TR
CAM_SPI
6AXIS_INT/INT2
CAM_OIS_I2C_1P8
MCU_BOOT0_SWCLK
MCU_nRST
FPS
SW_ON
POWER_KEY
BTP_SPI
LPDDR4A_CA([0:5]), CLK, CKE, CS, DMI
LPDDRBA_CA([0:5]), CLK, CKE, CS, DMI
LPDDR4_RST_N
GRIP
SENSOR
1
ISG
5320
A
GRIP1_I2C_1P8
GRIP
SENSOR
2
ISG
5320
A
GRIP2_I2C_1P8
GRIP_INT1
GRIP_INT2
SPK_
OUT
EAR_MIC_3.5_P
EAR_OUT_L/R
SM-A225F/M
Common
SM-A225F _RF
Embed
ded
Couple
r
MMMB
3G/4G
HB
GSM
LB
WIPS115749-
2R
GSM
HB
TX_GSM_LB
3G/4G
LB
TX_GSM_HB
TX_3G_4G_MB
TX_3G_4G_LB
SP1
0T
TRX_B
5_26
TRX_B1
2_17
TRX_B
8
TRX_B
20
TX_GSM
_LB
TX_GSM
_HB
TRX_B
1
TRX_B
3
WIPS33232-
01
High-Band
PAM
PRX_B7
PRX_B38_40_41
TX_B7/38/40/41
Main1
ANT
LB/MB
ANT
Switch
MXD85
48E
ANT
Switch
MXD85
48E
SP10T
MXD86
A7S
SP2T
BGS12P
2L6
PDET
TXDE
T1
TX_L
B1
TX_M
B2
TX_M
B3
TX_L
B3
TX_H
B2
PRX07
PRX_B5_26
PRX_B8
PRX_B20
PRX_B1
PRX09
Transceiver
MT6177W/A
TRX_B
28
TRX_B
4_66
TRX_B
2
SP
4T
SFMD3L0
F001
B
7
B
4
0
B
4
1
A
U
X
Embed
ded
Couple
r
Coaxial
Cable
Main2
ANT
HB
PRX_B2
PRX_B12_17
PRX03
PRX05
PRX08
PRX04
PRX01
PRX02
GRIP
IC_2
GRIP
IC_1
RFF
E1
RFF
E0
RFF
E1
PRX_B28
PRX_B4_66
PRX_B3
PRX12
PRX11
DRX
_B7
Sub
ANT
LB/MB/
HB
ANT
Switch
MXD8548
EC
DRX_HB
DRX_B2_3
DRX_B1_4_66
DRX_LB
SP
3T
SP
5T
DRX LNA
Bank
MXD83E4
W
SP
4T
SP8
T
SP8T
MXD86
80S
LNA4_
IN1
LNA4_
IN2
LNA4_
IN3
LNA3_
IN1
LNA3_
IN2
LNA2_
IN1
LNA2_
IN2
LNA2_
IN3
LNA1_
IN3
LNA1_
IN1
LNA1_
IN2
LNA2_
IN4
LNA1_
IN5
LNA1_
IN4
DRX_
B40
DRX_B3
8_41
DRX
_B3
DRX
_B2
DRX_B1
_4_66
DRX_
B20
DRX_B1
2_17
DRX_
B28
DRX_
B8
DRX_
B5
SP2T
MXD86
21E
OUT_
MHB
OUT_
MB2
OUT_
MB1
OUT_
LB
DRX1
3
DRX1
1
DRX7
DRX4
DRX_B8
_2nd
DRX2
GPS_RFIN
PRX
13
WiFi/BT/GP
S/FM
MT6631N
/B
WB_RF_2G
GPS
ANT
WiFi
ANT
FM_ANT
GPS_R
FIN
RF
2G
FM_LANT
_P/N
RF
5G
ANT
Switch
MXD8548
EC
SM-A225F/M
Common
ANT2000
ANT2001
ANT2002
ANT2003
ANT5000
ANT5001
ANT5002
ANT5004
ANT5005
BOOT1
C1070
C1071
C2002
C2003
C2004
C2006
C2012
C2015
C2016
C2017
C2021
C2022
C2025
C2026
C2027
C2028
C2029
C2030
C2032
C2033
C2034
C2036
C2037
C2040
C2041
C2045
C2064
C2065
C2069
C2070
C2073
C2076
C2077
C2079
C2080
C2082
C2083
C2085
C2086
C2088
C2089
C2091
C2092
C2093
C3002
C3029
C3034
C3069
C3070
C3076
C3078
C4000
C4002
C4011
C4020
C4023
C4024
C4031
C4032
C4033
C4035
C4037
C4044
C4048
C4050
C4070
C4073
C4074
C4077
C4078
C5014
C5024
C5029
C5030
C5033
C5034
C5035
C5053
C5059
C5060
C5061
C5062
C5063
C5064
C5072
C5073
C5074
C5075
C5076
C5077
C5078
C5081
C5095
C5107
C5109
C5110
C5114
C5115
C5116
C5117
C5118
C5119
C5120
C5121
C5122
C5123
C5124
C5125
C5126
C5127
C5128
C5129
C5130
C5131
C5132
C5133
C5134
C5135
C5136
C5137
C5138
C5139
C5140
C5141
C5142
C5143
C5144
C5145
C5146
C5147
C5148
C5149
C5150
C5151
C5153
C5155
C5156
C5157
C5158
C5159
C5160
C5161
C5162
C5163
C6000
C6001
C6002
C6003
C6004
C6005
C6006
C6007
C6009
C6010
C6011
C6027
C6028
C6029
C7000
C7001
C7002
C7003
C7004
C7008
C7013
C7014
C7015
C7016
C7017
C7019
C7020
C7021
C7022
C7023
C7025
C7026
C7027
C7028
C7033
C7034
C7036
C7037
C7038
C7041
C7042
C7043
C7044
C7045
C7046
C7047
C7048
C7050
C7051
C7052
C7054
C7055
C7056
C7057
C7058
C7059
C7060
C7061
C7062
C7063
C7064
C7065
C7066
C7067
C7068
C7069
C7070
C7075
CN7000
D5000
D5001
D5003
F2000
F2001
F2002
F2003
F2004
F2005
F2006
F2007
GND
HDC4000
ID
JTAG4001
JTAG4002
JTAG4003
L2000
L2002
L2007
L2009
L2010
L2011
L2013
L2014
L2015
L2017
L2018
L2021
L2022
L2023
L2024
L2025
L2026
L2027
L2028
L2029
L2030
L2035
L5003
L5008
L5009
L5010
L5014
L5015
L6000
L6001
L6002
L6012
L7005
L7006
L7007
L7008
L7009
L7010
MIC6000
Q6000
R3001
R3003
R4000
R4001
R4002
R4003
R4004
R4005
R4006
R4007
R4009
R4011
R4012
R4013
R4014
R4016
R4030
R4032
R4033
R4034
R4035
R4036
R4037
R4038
R4039
R4040
R5003
R5004
R5005
R5007
R5008
R5009
R5010
R5011
R5027
R5028
R5031
R5032
R5033
R5034
R5035
R5036
R5037
R5038
R5039
R5040
R5041
R5042
R5043
R5044
R5045
R5046
R6000
R6001
R6002
R6003
R6004
R6005
R6007
R6010
R6011
R6012
R6013
R6016
R6028
R7001
R7002
R7003
R7004
R7005
R7006
R7011
R7013
R7016
R7017
R7018
R7019
R7022
R7023
R7024
SC7003
SC7004
SIM5000
SIM5001
SIM5002
SIM5003UP
SOC7000
SOC7002
TH4000
TH4001
TP_3002
TP_BCLK
TP_CAM1_CLK_N
TP_CAM1_CLK_P
TP_CAM1_D0_N
TP_CAM1_D0_P
TP_DI
TP_DO
TP_EMMC5000
TP_INTN
TP_MST_DATA_A
TP_MST_DATA_B
TP_RST
TP_SRCLKENA5001
TP_SYSRSTB
TP_TSP_7000
TP_USART1
TP_USART2
TP_WATCHDOG
TP_WS
TP3002
TP3005
TP3006
TP3007
TP3008
TP4005
TP5002
TP5003
TP5004
TP5005
TP5006
TP7000
TP7002
U2000
U2003
U2004
U2007
U3000
U3005
U3006
U3010
U5000
U5003
U6000
U6002
U7000
U7001
U7002
U7003
U7004
U7006
U7008
U7010
U7012
U7013
UCP4000
UME500
VBUS
ZD5001
ZD5003
ZD5004
ZD5005
ZD6000
ZD6001
ZD6002
ZD6005
VX_SETUP(2021-04-23)_HHP
Created date of PCB data : 2021/4/29 12:09:49
Model :
SM-A225F
Revision :
REV02
Manufacture Count :
400EA
Charge :
권순각
Contact :
010-3906-3247
Date :
Routing :
Resin :
Ali Pro +967777617810
SM-A225F/M
Common
ANT1001
ANT1002
ANT2004
ANT2005
ANT2006
ANT3000
ANT3001
ANT3003
ANT3004
ANT3005
ANT3006
ANT6000
ANT6001
BH7000
C1000
C1001
C1002
C1003
C1004
C1005
C1006
C1007
C1008
C1009
C1010
C1011
C1012
C1013
C1014
C1015
C1016
C1017
C1018
C1019
C1020
C1021
C1022
C1023
C1024
C1025
C1026
C1027
C1028
C1029
C1030
C1031
C1032
C1033
C1034
C1035
C1036
C1037
C1038
C1039
C1040
C1041
C1042
C1043
C1044
C1045
C1046
C1047
C1048
C1049
C1050
C1051
C1052
C1053
C1054
C1055
C1056
C1057
C1058
C1059
C1060
C1061
C1062
C1063
C1064
C1065
C1066
C1067
C1068
C1069
C1072
C1073
C1074
C1075
C1076
C1077
C1078
C1079
C1080
C1081
C1082
C1083
C1084
C1085
C1086
C1087
C1088
C1089
C1090
C1091
C1092
C1093
C1094
C1095
C1096
C1097
C1098
C1099
C1100
C1101
C1102
C1103
C1104
C1105
C1106
C1107
C1108
C1109
C2000
C2001
C2005
C2007
C2008
C2009
C2010
C2011
C2013
C2014
C2018
C2020
C2023
C2024
C2031
C2035
C2038
C2039
C2042
C2043
C2044
C2046
C2047
C2048
C2049
C2050
C2051
C2052
C2053
C2054
C2055
C2056
C2057
C2058
C2059
C2060
C2061
C2062
C2063
C2066
C2067
C2068
C2071
C2072
C2074
C2075
C2078
C2081
C2084
C2087
C2090
C3000
C3001
C3003
C3004
C3005
C3006
C3007
C3008
C3009
C3013
C3016
C3018
C3021
C3022
C3023
C3028
C3031
C3032
C3035
C3037
C3039
C3043
C3044
C3045
C3046
C3047
C3048
C3049
C3050
C3051
C3052
C3084
C3086
C3087
C3092
C3093
C3094
C3095
C3096
C3097
C3098
C3099
C3100
C3102
C3104
C3107
C4001
C4003
C4004
C4005
C4006
C4007
C4008
C4009
C4010
C4012
C4013
C4014
C4015
C4016
C4017
C4018
C4019
C4021
C4022
C4026
C4027
C4028
C4029
C4030
C4034
C4036
C4045
C4046
C4047
C4049
C4051
C4052
C4053
C4054
C4063
C4064
C4069
C4071
C5000
C5001
C5002
C5003
C5004
C5005
C5006
C5007
C5008
C5009
C5010
C5011
C5012
C5013
C5015
C5016
C5017
C5018
C5019
C5020
C5021
C5022
C5023
C5025
C5026
C5027
C5028
C5031
C5032
C5036
C5037
C5038
C5039
C5040
C5041
C5042
C5043
C5044
C5045
C5046
C5047
C5048
C5049
C5050
C5051
C5052
C5054
C5055
C5056
C5057
C5058
C5065
C5066
C5067
C5068
C5069
C5070
C5071
C5079
C5080
C5082
C5083
C5084
C5085
C5086
C5087
C5088
C5089
C5090
C5091
C5092
C5093
C5094
C5096
C5097
C5098
C5099
C5100
C5101
C5102
C5103
C5104
C5105
C5106
C5108
C5113
C5152
C5164
C5172
C5175
C5176
C5179
C5183
C6008
C6012
C6013
C6014
C6015
C6016
C6017
C6018
C6019
C6020
C6022
C6024
C6025
C6026
C7005
C7006
C7007
C7009
C7010
C7011
C7012
C7018
C7024
C7029
C7030
C7031
C7032
C7035
C7039
C7040
C7049
C7053
CN7001
D6000
F1000
F1001
F1002
F1003
F1004
F1005
F1006
F1007
F1008
F1010
F3003
L1000
L1001
L1002
L1003
L1004
L1005
L1006
L1007
L1008
L1009
L1010
L1011
L1012
L1013
L1014
L1015
L1016
L1017
L1018
L1019
L1020
L1021
L1022
L1023
L1024
L1025
L1026
L1027
L1028
L1029
L1030
L1031
L1032
L1033
L1034
L1035
L1036
L1037
L1038
L1039
L1040
L1041
L1042
L1043
L1044
L1045
L1046
L1047
L1048
L1049
L1050
L1051
L1052
L1053
L1054
L1055
L1056
L1057
L1058
L1059
L1060
L1061
L1062
L1063
L1064
L1065
L1066
L1067
L1068
L1069
L1070
L1071
L1072
L1073
L1074
L1075
L1076
L1077
L1078
L1079
L1080
L1081
L1082
L2001
L2003
L2004
L2005
L2006
L2008
L2012
L2016
L2019
L2020
L2031
L2032
L2033
L2034
L3000
L3001
L3002
L3003
L3004
L3005
L3006
L3007
L3008
L3009
L3010
L3011
L3012
L3013
L3014
L3015
L3016
L3017
L5000
L5001
L5002
L5004
L5005
L5006
L5007
L5011
L5012
L5013
L5016
L6004
L6005
L6007
L6008
L6009
L6010
LED5000
OSC5000
PAM1000
PAM1001
Q5000
R1000
R1001
R1002
R1003
R1004
R1005
R1006
R1007
R2000
R2001
R2002
R3000
R3010
R3011
R4008
R4010
R4021
R4022
R4025
R4026
R5000
R5001
R5002
R5006
R5012
R5013
R5014
R5015
R5016
R5017
R5018
R5019
R5020
R5021
R5022
R5023
R5024
R5025
R5026
R5029
R5030
R5047
R5048
R6006
R6014
R6015
R6017
R6018
R6023
R6024
R6025
R7000
R7007
R7009
R7010
R7012
R7014
R7015
R7020
R7021
RFS1000
RFS1001
SC7000
SC7001
SOC5000
SOC5001
SOC6000
SOC7001
SOC7003
SOC7004
TA3000
TH1000
TP_BT_CLK
TP_BT_DATA
TP_DISP_TE
TP_EL_ON6000
TP_EL_ON6001
TP_NFC_CLK_REQ
TP_NFC_EN
TP_NFC_FIRM
TP_NFC_IRQ
TP_RFFE3_CLK
TP_RFFE3_DATA
TP_RTC5000
TP_SRCLKENA5000
TP_TOP_CLK
TP_TOP_DATA
TP_UB0
TP_UB1
TP_WB_CTRL0
TP_WB_CTRL1
TP_WB_CTRL2
TP1000
TP3000
TP3001
TP3003
TP3004
TP3009
TP5000
TP5001
TP5013
TP5014
TP5015
TP5016
TP5017
TP5018
TP7001
U1000
U1001
U1002
U2001
U2002
U2005
U2006
U3001
U3002
U3003
U3004
U3007
U3008
U5001
U5002
U6001
U7005
U7011
USB_DN
USB_DP
ZD1000
ZD1001
ZD4002
ZD5000
ZD6003
ZD6004
VX_SETUP(2021-04-23)_HHP
Created date of PCB data : 2021/4/29 12:09:49
Model :
Revision :
Manufacture Count :
Charge :
Contact :
Date :
Routing :
Resin :
Ali Pro +967777617810
SM-A225F/M
Common
8-3. Flow chart of Troubleshooting.
|
|
|
|
Oscilloscope
|
Digital Multimeter
|
|
|
|
|
Power Supply
|
+ driver, ESD Safe Tweezer
|
|
|
|
|
8960 &
Spectrum Analyzer
|
Soldering iron
|
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Distribution, transmission, or infringement of any
content or data from this document without Samsung’s written authorization is
strictly prohibited.
8. Level 3 Repair
8-4-1. Power On
Mobile phone does not power on.
Check the initial operation
Yes
No
No
Yes
No
Check the output voltage of U5002
L5006>1.35V, L5004>2V, L5002>0.5V
and other LDO Voltage
If the output voltage is not normal,
Change the U5002
※
Each voltage level has ±10% margin
No
Check the signal of
VDD_A_1P2=1.2V
Replace the OSC5000
※
Test condition (Oscilloscope setting)
: 20.0us.div (time division)
Replace the Power key FPCB
Yes
No
Check the voltage level at
R
5011
while pressing power
key. Is the voltage high?
No
No
Power
-
on the phone and check
the power
-
on sound
or motor Vibration.
Sound or Vibration is ok?
END
Yes
No
No
Charging the battery by TA.
If its voltage level is extremely low
(under 3.0V),
Change the battery.
Yes
No
Check the Battery Voltage.
Is it more than 3.8V?
Check the Clock
OSC
5
000
Is the frequency
26
Hz?
Yes
No
Yes
Change the FRONT-LCD ASSY
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8. Level 3 Repair
8-4-2. Initial
Initial Failure
Yes
No
Re-download latest SW on the
mobile phone
Abnormal
No
Re Check "Power on"
Trouble shooting process
END
Yes
No
Abnormal
Change PBA
Change U5002
Normal
Abnormal
Check the OSC5000
(Crack, open etc.)
Check the U5002 (Crack etc)
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8. Level 3 Repair
8-4-3. No Service
No service
Yes
No
Home screen
→
Phone
→
Keypad
→
*#1234#
→
Check
Phone version
→
CP :
A325
XXXX or unkown
CP : A325XXXXX
Check the connection of RF coaxial cable
Check the Voltage
C2021/C2025/C2022/C2026 : 1.8V,
C2023/C2024 : 1.2V
Unknown
Yes
No
Yes
No
END
Replace the U2005
Replace the U5005
No
No
Replace the OSC5000
Yes
No
Check the clock OSC5000
Is the frequency 26MHz?
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strictly prohibited.
8. Level 3 Repair
8-4-4. SIM Part
Insert SIM card
Yes
No
No
Replace SIM socket
Is SIM socket ok?
No
Yes
No
Check the SIM RST / IO / CLK.
(SIM1 : C5156(1,8V or 3.0V))
(SIM2 : C5153(1.8V or 3.0V))
Is signal ok?
Check
the
SIM Voltage.
= 1.8V
(R5038)
?
Change to the new SIM card.
If it doesn`t still work SIM card after
changing Check the U5002
(Crack etc)
Yes
No
END
No
Check the UCP4000 (Crack etc)
Yes
No
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8. Level 3 Repair
8-4-5. T-Flash Part
Insert T-Flash card
Yes
No
No
Replace SIM socket
Is SIM socket ok?
No
Yes
No
Change to the new T Flash card.
If it doesn`t still work T Flash card after
changing Check the U5002
(Crack etc)
Yes
No
END
No
Check the UCP4000 (Crack etc)
Check
the
t
-
flash
CMD
/Data/CLK.
Is signal ok?
Yes
No
Check
the
T
-
flash Voltage.
(C
5160
) = 3.0
V
?
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strictly prohibited.
8. Level 3 Repair
8-4-6. Cable Charging Part
Insert TA / USB
Yes
Charging Sequence Start
VBUS_OVP(C6016) = 5V or 9V
No
Replace SUB PBA
No
Yes
Check the
VBUS_IF(C6015
)=5V
or 9V
Replace U6001
Replace U5000
No
END
Yes
Yes
Battery is Charging?
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content or data from this document without Samsung’s written authorization is
strictly prohibited.
8. Level 3 Repair
8-4-7. OTG
OTG does not work
Yes
Check the
VBUS_IF(C5024) = 5V
No
Check U5000
(crack, open, damaged, etc.)
No
Yes
Check
the
VBUS_OVP(C6016) = 5V
Check U6001
(crack, open, damaged, etc.)
Replace SUB PBA
No
END
Yes
Check
OTG working ?
Yes
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strictly prohibited.
8. Level 3 Repair
8-4-8-1. Accel Sensor(6 AXIS)
Accel. Sensor does not work
Yes
No
Check the voltage
C3029 =1.8V
No
Replace U3010
No
Yes
No
END
Yes
No
Check
TP300
9
, TP3003
(I2C, CLK is OK?)
Replace U3006
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content or data from this document without Samsung’s written authorization is
strictly prohibited.
8. Level 3 Repair
8-4-8-2. Fingerprint Sensor
Fingerprint Sensor does not work
Yes
No
Reconnect.
If broken, Replace the Sensor FPCB and
Do calibration.
Check the Fingerprint Sensor
connector
No
No
Yes
No
Check The voltage
C5015 =3.3V
END
Yes
No
Check
the Fingerprint Sensor
MISO, MOSI, CLK, CS_N
P
in
s
(
SPI
is OK?)
Yes
No
Replace U5001
Check SOC5000 Connector,
No
Yes
No
No
Replace the Fingerprint sensor module
Check Fingerprint working?
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strictly prohibited.
8. Level 3 Repair
8-4-9-1. Microphone Part
- Main MIC
Check
main
microphone
function
in
voice
call
Handset
mode
or
voice
recorder
mode
Yes
No
Check the voltage of C1028
at SUB PBA = 1.9V
replace SubPBA
No
Yes
No
Check
the
MAIN_MIC_P data
at SubPBA L1022
No
Replace
MIC1000 at SUB PBA
Yes
No
END
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Distribution, transmission, or infringement of any
content or data from this document without Samsung’s written authorization is
strictly prohibited.
8. Level 3 Repair
8-4-9-2. Microphone Part
- Sub(2nd) MIC
Check
Sub(2nd)
microphone
function
in
voice
call
loudSPK
mode
or
in
camcording
mode
mode
Yes
No
Check
the
voltage
at
L6027
=
1.9V
Replace U5002
No
Yes
No
Replace
MIC6000
No
Yes
No
END
Check
the
SUB_MIC_P data at
L6005
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content or data from this document without Samsung’s written authorization is
strictly prohibited.
8. Level 3 Repair
8-4-10. Speaker Part
Check
speaker
function.
Play
MP3
with
maximum
volume
level.
Yes
No
Check C-clips of Sub PBA
ANT1003, ANT1004
Yes
Replace C-Clip
No
Replace UCP4000 on MAIN PCB
Yes
No
No
No
Yes
No
Yes
No
END
Replace speaker module
Check
the output of VDD_AMP(C6002)
Replace SUB PBA
Check
the
PWM output at
ANT1003, ANT1004
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strictly prohibited.
8. Level 3 Repair
8-4-11. Receiver
Part
Check
receiver
function
in
voice
call
receiver
mode
Yes
No
Check
RCV module
where RCV's placed
for any damage
Resolder or Replace
ANT6000, ANT6001
No
END
Yes
No
Replace RCV module
Yes
No
Yes
No
No
Resolder or replace U5002
Check the signals on
RCV_P, RCV_N
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strictly prohibited.
8. Level 3 Repair
8-4-12. BT/WIFI
BT/WIFI is not working
Yes
No
No
Enable BT or WIFI function.
Check BT or WIFI function ON
Yes
No
C
heck the status of U3008, C3018,
L3004, C3008, L3000
Yes
No
END
Resolder or replace U3003
Yes
No
Check the
a
ntenna
contact
ANT3004
No
1. Resolder or replace
ANT3004
2. Replace REAR
Check the voltage
C3047 = 1.8V, C3048 = 1.8V,
C3031 = 1.8V, C3003 = 1.8V
C3013 = 2.8V
Yes
No
Resolder or replace the wrong element
(open, crack, deviation, etc)
No
Replace
U5002
Yes
No
No
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content or data from this document without Samsung’s written authorization is
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8. Level 3 Repair
8-4-13. GPS
GPS is not working
Yes
No
Enable GPS Function in the setting.
No
Check GPS function ON
Yes
No
No
Resolder or replace the wrong element
(open, crack, deviation, etc)
No
Check(crack,open,etc)
C3031 = 1.8V, L3008=1.8V
C3046 = 1.8V
U3001, F3003, C3000, C3027, L3009
C3028, L3011
END
Yes
No
Resolder or replace U3003
Yes
No
Yes
No
1. Resolder or replace ANT3003
2. Replace REAR
Check the
a
ntenna
contact
ANT3003
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strictly prohibited.
8. Level 3 Repair
8-4-14. NFC
NFC is not working
Yes
No
Enable NFC Function
No
Check NFC function ON
Yes
No
No
1. Resolder or replace ANT3005, ANT3006
2. Replace NFC ANT
Check U5002
(crack, open, damaged, etc.)
Check the status of
C3097, C3100, R3010, L3014,
L3013, R3011, C3096, C3107,
C3095, C3012, C3098, C3099,
R3000
No
Check U5002, OSC5000
Check the voltage on
C3004 = VBAT, C3084 =1.8V,
C3094 = VBAT
END
Yes
No
Yes
No
Resolder or replace U3004
Yes
No
Check 26MHz Clock at C3004
Yes
No
No
Check the antenna contact
ANT3005, ANT3006
Resolder or replace C3097, C3100,
R3010, L3014, L3013, R3011, C3096,
C3107, C3095, C3012, C3098, C3099,
R3000
No
Yes
No
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8. Level 3 Repair
8-4-15. FM radio part
FM is not working
Yes
No
Enable FM Function.
No
Check the FM function
Yes
No
Resolder or replace U5002
No
Check the
voltage of
C3043
=
2
.8V
C3013 = 2.8V
Yes
No
Check the
voltage of
C1016
= 1.8V
at SUB PBA
Replace SOC6000 at Main PBA or
SOC1000 at SUB PBA or CtoC connector
No
Check the status of L3006
Resolder or replace L3006
Yes
No
Yes
No
No
Yes
No
Replace SUB PBA
No
Check the status of
C1014, L1017,
ZD1006, L1016
at SUB PBA
Yes
No
END
Resolder or replace U3003
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content or data from this document without Samsung’s written authorization is
strictly prohibited.
8. Level 3 Repair
8-4-16. Display
LCD is still off after PWR ON
Yes
No
Check the MAIN FPCB
Yes
No
No
Reconnect the SOC6000
Yes
No
Yes
No
Check
VDD_LCD_3P0 = 3.0V (C7057)
VDD_LCD_1P8 = 1.8V (C7058)
Resolder or Replace the U7010
No
Yes
No
Replace the Display module
END
Yes
No
Resolder or Replace the U7006(3.0V)
Resolder or Replace the U7008(1.8V)
Check
VDD_LCD_ELVDD 4P6 = 4.6V (C7055)
VDD_LCD_EL
VSS_-4P4 = - 4.4 ~ - 1.4V (C7056)
VDD_LCD_ELA
VDD_7P6 = 7.6V (C7038)
Check the connection of
SOC6000
No
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8. Level 3 Repair
8-4-17. REAR Camera
“
Came
ra” function does not work
Yes
Check the Camera connector on Main
PBA
No
Reconnect the SOC7000, SOC7001, SOC7002,
SOC7003
Yes
Check the voltage
C7019 : 1.1V
C7021 : 1.8V, C7075 : 2.9V
C7025 : 2.8V, C7036 : 1.8V
C7053 : 1.8V, C7046 : 3.3V
Yes
END
Replace the camera module
Yes
Check the CAM_MCLK
C7008, C7013, C7004
Replace the PBA
No
Resolder or Replace U7001, U7003, U7004, U7005,
U5002
Yes
No
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content or data from this document without Samsung’s written authorization is
strictly prohibited.
8. Level 3 Repair
8-4-18. FRONT CAMERA
“
Came
ra” function does not work
Yes
Check the Camera connector on Main
PBA
Reconnect the SOC7004
No
Yes
Check the voltage
C7029 : 1.8V
C7018 : 1.2V
Check the VTCAM_MCLK
(C7033)
Resolder or Replace U7003
No
Y
es
No
Yes
Yes
END
Replace the Front camera module
Replace the PBA
No
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strictly prohibited.
8. Level 3 Repair
8-4-19. Motor
Motor does not work
Yes
Resolder or Reconnect
ANT5004 , ANT5005
No
Check the Clip
ANT5004 and ANT5005
Yes
No
Resolder or Replace
C5158, C5157
Check the voltage C5010 =3.3V
Check C5158 and C5157
(crack,open,etc)
Yes
Yes
END
Replace Motor
Resolder or Replace PMIC CHIP
Replace : U5002
No
Yes
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strictly prohibited.
8. Level 3 Repair
YES
8-4-20. GSM 850/900/1800/1900, WCDMA B1/2/4/5/8,
LTE B1/2/3/4/5/8/12/17/20/26/28/66 PRx
It is not catching the channel
in normal condition
END
NO
Resolder or replace
U1000, U2006
Replace SUB PBA or coaxial cable
NO
NO
Resolder or replace
RX path components
Check the SUB PBA and coaxial cable
(ANT1000~RFC1000, ANT1002,
ANT1005, U1004, U1002)
Is it ok? (SUB PBA)
)
Check common RX path any damage
(RFS1000~U1000,
U1000~PAM1000~U2006)
Is it ok?
Check U1000, U2006
any damage
(Crack, open, etc), is it ok?
i
Change the board
YES
YES
YES
YES
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8. Level 3 Repair
YES
8-4-21. LTE B7/38/40/41 PRx
END
It is not catching the channel
In normal condition
NO
Resolder or replace
U1002, PAM1001, or U2006
Resolder or replace
Antenna path components
NO
NO
Resolder or replace
RX path components
Check ant path any damage
(ANT1001,1002 ~ RFS1000)
Is it ok?
)
Check common RX path any damage
(RFS1000~U1002,U1002~PAM1001~U2006)
Is it ok?
Check U1002, PAM1001, U2006
any damage
(Crack, open, etc), is it ok?
i
Change the board
YES
YES
YES
YES
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strictly prohibited.
8. Level 3 Repair
YES
8-4-22. GSM 850/900/1800/1900, WCDMA B1/2/4/5/8,
LTE B1/2/3/4/5/7/8/12/13/17/20/26/28/38/40/41/66 DRx
It is not catching the channel
In normal condition
END
NO
Resolder or replace
U2003, U2007, U2006
Resolder or replace
antenna path components
NO
NO
Resolder or replace
RX path components
Check ant path any damage
(ANT2004, ANT2005, ANT2006~U2003)
Is it ok?
)
Check RX path any damage
(U2003~U2007 ~U2006)
Is it ok?
Check
U2003, U2007, U2006
any damage
(Crack, open, etc), is it ok?
i
Change the board
YES
YES
YES
YES
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strictly prohibited.
8. Level 3 Repair
YES
8-4-23. GSM 850/900/1800/1900, WCDMA B1/2/4/5/8,
LTE B1/2/3/4/5/8/12/13/17/20/26/28/66 Tx
Resolder or replace
U1000, PAM1000, U2006
NO
Change the board
Check U1000, PAM1000, U2006
any damage
(Crack, open, etc), is it ok?
NO
END
It is not catching the channel
In normal condition
Resolder or replace
TX path components
Replace SUB PBA or coaxial cable
NO
NO
Resolder or replace
TX path components
Check the SUB PBA and coaxial cable
(ANT1000~RFC1000, ANT1002,
ANT1005, U1004, U1002)
)
Check TX path any damage
(RFS1001~U1000, U1000~PAM1000)
Is it ok?
Check TX path any damage
(PAM1000~U2006)
Is it ok?
?
i
YES
YES
YES
YES
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8. Level 3 Repair
YES
8-4-24. LTE B7/38/40/41 Tx
YES
YES
Resolder or replace
U1002, PAM1001, U2006
Check U1002, PAM1001, U2006
any damage
(Crack, open, etc), is it ok?
Change the board
END
NO
It is not catching the channel
In normal condition
Resolder or replace
Antenna path components
NO
NO
Resolder or replace
TX path components
Check ant path any damage
(ANT1001,1002 ~ RFS1000)
Is it ok?
)
Check TX path any damage
(RFS1000 ~ U1002, U1002 ~PAM1001 ~
U2006)
Is it ok?
YES
YES
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8. Level 3 Repair