samsung SM-J120H Service Manual-Tshoo-7
8. Level 3 Repair
8-1. Components Layout
(VIETMOBILE.VN)
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
(VIETMOBILE.VN)
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
8-2. Block Diagram
(VIETMOBILE.VN)
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
TOP
(VIETMOBILE.VN)
TAC5000
ant2000
C2071
C2055
C2062
TP_C6004
L2006
U2004
HDC6001
C6016
U2006
C2022
C6024
L2004
C2021
U2003
C2020
L2003
U2001
C2025
L2001
C2024
L5017
SPK5000
C5049C5050
C5051C5052
ZD5014
L5014
C2063
TP_C6000TP_C6001
TP_C6002TP_C6003
C1917
C2058
C6041
L2020
C2056
U2027
C2064
C6043
L2023
C2966
U2905
C2959
L2018
C2960
C2965
F2900
L2026
C2081
R6029
C2072
C6000
C6011
U2019
L2021
C6002
C5048
C5055
U6000
C2073
C6023
C6001
U6005
L2019
R6002
EAR5000
C5053C5054
R5054R5055
ZD5013
C5046
C5047
ZD5010 ZD5011
L5008
L5011
C5043C5044
L5013
ZD5015
ZD5008
ZD5006
R5051
L5006
ZD5012
C5039
C5045
R5032
C5040
R5034
C5037
R5038
L5005
C5038
C5034
R4031
R5033
R5037
C5032
U2011
L2015
C2037
U2015
R5003
R5004
R5023
R5024
R5029
R6005
C6003
R3029
R6001
R3030
U6002
HDC6000
C6004
C6005
ZD5001
TP_LCD_MIPI_D6003
TP_LCD_MIPI_D6002
TP_LCD_MIPI_CLK_P
TP_LCD_MIPI_CLK_N
TP_LCD_MIPI_D6001
TP_LCD_MIPI_D6000
TP6000
U6001
C6006
C6007
C5029
R5020
R5022
ZD5005
L5010
L5007
C5041
R5047
R5043
L5009
R5039
ZD5007
LED4000
L5012
R5056
R5045
ZD5009
CAM6000
TP_STANDBY
C2092
C2084
C2077
U2032
U2036
F2006
C2090
U2038
U2028
C2051
C2053
L2024
C2054
F2001
C2052
C2074
C2066
U2900
C2060
C2049
C2065
U2022
C2067
TP_UB
C4093
L4005
C4082
R4021
R6014
C6036
R6016
L1036
TH1000
R1010
C1123
C1115
L1054
C1109
L1050
C1111C1112
U1004
PAM1001
L1051
C1119
C1120
L1052
C1114
L1057
C1126
C1077
C1091
C1085
U1002
C1071
C1080
C1067
C1084
C1070
C1025
F1001
C1016
C1013
C1015
CPL1000
L1008
C1014
L1058
C1130
C1129
U1010
F2005
C2093
C2095
F2007
C2080
C2050
U2021
C2068
C2061
R5015
C5026
F2004
C2091
U2039
U2034
C2094
C2089
C2078
L2025
C2086
C2082
C2075
C2076
U2035
C2057
CD6000
C6037
C6039
R6018
R6019
R6020
ZD6005
ZD6004
D5000
C5000
L5002
C5003
U6012
C5027
U5002
R6023
C6042
R6025
R3006
R3008
R3009
C3054
C3055
C3062
C3061
C3059
C3060
C3037
C3048
C3057
TP4003
C3069
C3017
C3068
TP3003
R6008
C6015
C6009
R6006
C4027
C4057
C4058
C4049
C4055
C4056
C4017
C4059
U2025
U2031
C2083
U2033
U2029
C2079
R6009
R6003
R6004
C6008
C6012
ZD6001
R6000
R6026
C6031
C6032
C6044
TP_ACC_INT
R6024
U6010
R3031
R3032
TP4004
R3012
C3025
C3026
C3027
C3028
R3007
R3010
R3013
R3016
R3014
R3015
C3053
C3047
C3056
C3014
C3008
C4006
C2085
R3002
C3063
C3064
C3065
C3066
C3036
C3009
C3010
C3012
TP4006
R3021
R3022
R3023
R3025
C3045
R3020
R3019
R3011
R3017
R3005
C3046
C3049
C3007
C3058
C3015
UCP3000
C3070
R3038
TH3000
R3024
C3035
TP4009
R3039
R3001
R3003
R3004
R3042
R3018
C4050
C3006
TP3000
C3004
C3005
C4008
C4003
C4035
C4054
C4041
L4000
C4002
C4052
C4015
C4031
C4032
C4016
OSC4000
C4063
C4011
C4061
C4060
U4000
C4000
C4062
C4064
C4019
C4024
C4022
C4023
C4030
C4038
L4002
C4037
C4001
C4013
C5031
R5028
C4040
R5031
ZD5003
U2030
R3037
C6013
C3051
C3067
C3050
C3052
TP3002
C3013
C3016
C3033
C4051
C4004
L4001
C4009
C4046
C4036
C4045
R5048 R5049
R5046
R5041
C4039
C4033
C4034
C6010
C6040
C3022
C3023
C3024
C3011
C3034
R3040R3041
R3043R3044
C4026
C4018
C4014
C4028
C4047
R4008
C4044
R4009
C4042
R5044
R5036
C4043
R4030
C4020
C4021
ZD6002
ZD6000
R6021R6022
R6027
C6045
R5026
R5027
C3043
C3021
R3035
R3036
C3071
R3045
C3030
C3029
UME5000
C3031
C3032
C5022
C3019
C3020
R3000
C3018
C3000
C3001
C3003
C3072
C3002
C4025
C4029
C4053
C4048
C4005
C4087
TP4002
TP4008
R4002
R5002
C5024
C5025
U5001
ZD6003
U6009
R6015
ZD5002
C5030
C3044
C3042
C5020
R4025
C4083
C4084
TP
R4016
R4014
ZD4001
R4001
C4088
C5004
C6028
U6006
C6027
R6011
C6034
R6017
C6035
C6017
C6038
L6000
C6033
C6022
C6019
L6001
C6021
U6004
L6002
C6020
OSC2001
C2026
R2003
R2002
TP_WLAN_D2000
C2001
C2011
U2008
C2015
C2017
C2023
TP_WLAN_PWR_ON
C2030
TP_WLAN_HOST_WAKE
C5015
C5013
C3038
C3039
C5009
C5008
R5021
R3028
R5005
R5008
R5009
R5010
R5011
R5012
R5013
R5014
C5011
C5021
C4079
C4081
C4080
C4074
R3026
R3027
R4023
R3034
R3033
L4004
R4024
C4067
R4012
R4013
C4069 C4070
U4003
C4066
C4075
U5000
C4068
C4094
C4073
L4003
C4072
R4011
C4078
C5005
C4077
C4089
C5001
R4018
C5002
R4029
R5000
U4002
R4015
R5001
C4076
R4017
C4092
TAC5001
R4010
R6012
TH4000
C4065
U6007
C6030
C6029
C6014
R6007
TAC5002
U6003
R6010
C6018
L6004
L6003
C6026
U6008
L6005
C6025
L2011
C2027
L2010
L2013
U2012
L2000
L2012
F2000
C2000
C2014
C2016
R2001
L2009
U2009
C2036
C2039
L2014
U2014
C2009
R2000
C2008
C2029
L2008
L2007
C2007
TP_BT_UART_CTS_N
TP_BT_UART_RTS_N
TP2002
U2007
TP_BT_UART_RXD
TP_BT_PWR_ON
TP2003
TP_BT_UART_TXD
TP2006
TP2004
TP2007
TP2005
C4010
C5006
C3040
C3041
R4007
C4012
C5014
C5007
C5016
C5010
C5017
C5023
C5012
R5030
R5006
C5018
R5007
C5019
TP4010TP4011
C4071
TP4001
TP4000
R4006
R4005
R4003
U5003
R4004
TP4007
C4090
R4027
R4026
ZD4000
C4091
R4028
TP2001
C2002
TP2000
TP_GPS_RXD
TP_GPS_RTS
TP_GPS_TXD
TP_GPS_CTS
C2031
C2032
C2033
C2047
U2018
R2007
C1078
R1002
TCX1000
C1069
R1001
R1005
R1007
R1008
C1102
L1040
L1032
C1101
C1106
C1075
C1074
C1076
C2018
C2046
C1118
C1122
C1100
R4000
ZD5000
U2005
C2045
C2044
R1009
R5018
C5028
C2019
U2002
U2000
L2005
C2010
U2016
R1011
C1098
C1096
C1083
U1003
C1089
C1088
C1090
R5019
L2002
C2013
C2012
C2004
C2003
R4019
R4020
C2043
C2041
C2042
L2016L2017
U2017
C2034C2035
U2013
C1068
R1006
L1038
C1104
C1105
C1117
C1103
C1099
C1097
L1039
L1018
C1087
L1020
C1027
C1079
L1014
C1030
C1037
U1001
C1057
C1058
C1066
C1073
L1033
L1031
C1065
C1072
C1028
C1029
OSC2000
R2006
C2040
TP_NFC_EN
U2010
L1037
L1024
C1052
C1045
C1062
C1059
C1061
C1049
L1025
C1048
C1047
U2024
L2022
ANT5000
F2003
U2026
C2059
ANT5001
F2002
BTC4000
C4086
R4022
C4085
D4000
VR4000
C2006
C2005
SIM6000 SIM6001
C2038
TP2008
TP_CLK_REQ
TP_NFC_IRQ
C2048
TP_NFC_FIRM
R2005
R2004
TP2009
TP2010
TP_RF0_SPI_RST
C2069C2070
C2087C2088
L1035
U2023
U2037
C1092
R1003
R1004
C1093
L1042
C1094
L1034
C1095
L1041
C1113
L1043
L1047
L1045
C1108
L1021
F1003
L1053
L1027
U1006
C1127
L1029
C1110
C1053
L1044
L1046
C1116
L1003
L1006
L1016
F1000
F1006
L1028
L1004
L1012
L1017
C1060
C1056
C1040
C1031
C1033 C1034
L1019
C1007
C1050
C1055
C1051
C1043
C1054
L1026
PAM1000
C1023
C1022
C1021
C1020
U1008
L1002
C1019
U1007
C1128
C1107
C1125
F1004
L1048
L1049
U1009
L1055
L1056
F1005
C1082
C1081
C1086
L1011
L1009
C1012
C1064
C1001
C1005
C1042
C1063
C1004
L1000
C1032
F1002
L1001
L1005
L1022
L1030
C1024
C1026
C1035
C1036
R1000
L1013
C1010
C1140
C1041
C1138
C1139
C1134
RFS1000
L1010
C1009
C1011
L1007
C1006
L1023
C1046
C1044
U6014
C1124
U1000
C1039
C1038
L5003
C5033
L1015
C1018
ANT1001
U6013
C1135
C5036
L5004
C5035
ZD5004
R5035
IFC4000
BH4000 BH4001
BH4002
ANT1000
C1131C1132C1133
R1012
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
BOTTOM
(VIETMOBILE.VN)
ANT5004
L5015L5016
ANT5005
SUS3002
U6011
TP_PM_PERI2000
SUS3000 SUS3001
CN6000
TP_LPDDR_CKP
TP_LPDDR_CKN
TP4005
C1136
L5000
ANT5002
CN5000
ANT5003
L5001
MIC5000
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
8-3. Flow Chart of Troubleshooting
Oscilloscope Digital Multimeter
Power Supply + driver, ESD Safe Tweezer
8960 & Spectrum Analyzer Soldering iron
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.
s o
8. Level 3 Repair
8-4. Power On
Mobile phone does not power on.
Check the Battery
Is it more than 3.8V?
Voltage.
Yes
Power-on the phone,
check the power-on
or motor Vibration.
Check the PWR_KEY
(soldering crack, open,
Check the U300
output voltage.
R525 ≒ 1.1V
Check the
Clock OSC100
Is the frequency
check the initial operation
sound
i
etc)
END
k?
No
Yes
Yes
Yes
Yes
No
Yes
No
No
Charging the battery by TA.
If its voltage level is extremely low(under 3.0V),
Change the battery.
Change the FRONT-LCD ASSY
No
Resolder or replace TAC501
If the output voltage is not satisfied with normal
condition, Change the U300
※ voltage level has ±10% margin.
Replace the OSC100
※ Test condition (Oscilloscope setting)
: 20.0us.div (time division)
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
8-4-2. Initial
Initial Failure.
Yes
Re-download latest
SW on the mobile
Re Check "8-4-1 Power on"
Trouble shooting process
Change UCP300
Change PBA
phone.
END
Abnormal
Yes
No
NO
Check the OSC100 (Crack, open etc.)
Check the U300
Crack etc
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
8-4-3. No Service
Check menu setting
Menu → applications → setting → network connections →
more networks → mobile networks → network mode → setting is auto connect ?
Home screen → Phone → Keypad
→ *#1234# → check Phone version
→ CP : J120HXXXX or unknown
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.
No service
Yes
CP : unknown
Check the components of
Antenna Path. Is it ok?
Yes
Check VREF
VREF(C138, C139) = 1.8
Yes
Change the PBA
Yes
END
CP : J120HXXXX
Check the Main Antenna exists or not.
No
No
Resolder the components
Replace the OSC100
8. Level 3 Repair
8-4-4. Sim Part
Insert SIM card
Is SIM socket ok?
Is SIM/SD assy
well connected to
main board?
Check the SIM
Voltage.
C641 >= 1.8V?
END
Yes
Yes
Yes
Yes
No
Reassemble SIM/SD assy and still SIM does not work,
replace SIM/SD assy
No
Change to the new SIM card.
If it doesn`t still work SIM card after changeing
the SIM card, Check the U300 (Crack etc)
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.
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