8-1. Components Layout
8. Level 3 Repair
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.
https://t.me/SMART_PHONE_SCHEMATICS
8. Level 3 Repair
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.
https://t.me/SMART_PHONE_SCHEMATICS
A102D/J Block Diagram
AP
LASSEN P+
TRANCEIVER
S5M9380X01-L030
VR
F_RX
_1P2, VR
F_TRX
_1P8, VR
F_RX
_LO_1P2
VR
F_TX_1P2, VR
F_TX_LO_1P2, VR
F_TXLO
_1P8
VR
F_M
IPI_IO_AP
, VR
F_G
NSS_1P1, VR
F_TCX
O_1P8
MEMORY
3+32GB (KLMBG2JETD-B041)
VDD_EMMC_1P8, VDD_EMMC_2P85
EMMC_CMD/CLK/RST_N
EMMC_D[0:7]
EMMC5.0_RCLK
SENSOR
VDD_SE
NSOR_1P8
RFIC_SPEEDY
FRONT_CAM
5M
VDD
_VT
CAM_A2P8, CAM_VDDI
O_1P8, VT
CAM_DVDD
_1P2
FCAM MIPI 2LANE
FCAM_SENSOR_I2C
SENSOR
Proxy Sensor
GP2AP110S00F
VDD_PROX
Y_LED_3P3
6AXIS_I2C
GYRO_INT
PRO
XY_I2C
PRO
XY_INT
MAIN PMIC
S2MPU08A02-6031
IF PMIC
S2MU106X01
VBU
S_5V_OVP, V_BATTE
RY, VBA
T, VDD_1P8
USB_AP_D_P/D_N
AP_UART_TXD/RXD, CP_UART_TXD/RXD
IF_PMIC_I2C, FG_I2C/ALERT_N
CAM_TORCH_EN, CAM_FL
ASH_EN
BATTERY CON
FG_SENSE_P/N
IF CON
USB_D_P/N
IF_PMIC
_ACOK
AUDIO CODEC
OSC
32.768kHz
VBA
T, VDD_MLDO_2P0, VDD_LLDO_1P3
AP_PMIC_CLK_32K
G3D/MIF/PWR_EN
SPEEDY_PMIC
BOOT_LDO
SOC_PSHOLD
SOC_RST_N, SOC_WRST_N
OCP_CPUCL0
CP_PWR_UP
PMIC_ONOB, PMIC_IRQB_N
PWR/VOL KEY
POWER_KEY
SPK
AMP
SPK_AMP_I2C
SPK_I2S3
RECEIVER
RCV_P/N
MAIN MIC
MAIN_MIC_P/N
SUB MIC
SUB_MIC_P/N
FB_I2S1, PM_I2S0
EARJACK
BM23FR0.8-10DP-0.35V
EAR_OUT_L/R
EAR_MIC_P/N
VDD
_M
IF_0P8, VDD
_CPUCL
0_0P8, VDD
_CPUCL
1_0P8, VDD
_INT
_0P8, VDD
_G3D_0P8, VDD
_M
EM_1P1, VDD
_LL
DO_1P3
VDD
_M
LDO_2P0, VDD
_CP_0P8, VDD
_ALI
VE_0P8, VDDQ
_M
M
C_CARD
_2P8, VDD
_1P8_AP, VDDQ
_DRAM
_0P6
VDD
_PL
L_AP_0P9, AVDD
_M
IPI_DPHY
_1P2, AVDD
_PL
L_AP_1P8, VDD
_CPUCL
_PPC
_0P8, VDD
_G3D_M_0P8
VDD
_CPUCL
0_M_0P8, VDD
_FS
YS_0P8, VDD
_USB
_0P9, AVDD
_USB
_1P8, AVDD
_USB
_3P3, AVDD
_PL
L_CP_0P8
AVDD
_PL
L_CP_1P8, AVDD
_PL
L_CP_1P2, VDD
_SIM
_1P8_3P0, VDD
_SIM
2_1P8_3P0, VRF
_TCX
O_1P8, VRF
_DVDD
_1P0
VRF
_TRX
_1P2, VRF
_TRX
_LO
_1P2, VRF
_TRX
_1P8, VRF
_TX
LO_1P8, VRF
_FE
M_2P8, VRF
_GNSS_1P1
VRF
_WL
_BT_RF_WL
BT_1P1, VRF_WL
_BT_RF_WL
BT_1P1, VRF
_WL
BT_1P8, VRF
_PA_WL
BT_1P8
VRF
_WL
_WL
BT_3P3, VDD
_EM
M
C_1P8, VDD
_EM
M
C_2P8
5, VDD
_TF
LASH
_3P0
MAIN FL
ASH
MOTOR
MO
TOR_EN
VDD_MOTOR_3P3
SIM & SD
(3 in 3)
SIM1_DATA
VDD_1P8_AP, VDD_NFC_SIM_1P8_3P0, VDD_SIM2_1P8_3P0,
VDD_SIM_1P8_3P0, VDD_TFLASH_3P0
SIM1_CLK/RST
TRAY_DET
T_FL
ASH_D[0:3]/CLK/CMD
PMIC_TCXO_26M
AP_TCXO_IN_26M
WIFI
S5N5C12A01-6630
VRF_WL_BT_RF_WLBT_1P1, VRF_LO_WLBT_1P1, , VDD_1P8_AP
VRF_PA_WLBT_1P8, VRF_WL_WLBT_3P3, VRF_WLBT_1P8
WLAN/BT/FM_SPDY
WLAN_TXIP, WLAN_TXIN
WLAN_TXQP, WLAN_TXQN
WLAN_RXIP, WLAN_RXIN
WLAN_RXQP, WLAN_RXQN
WLBT_TCXO_IN_26M
TRCV_TCXO_IN_26M
GPS_RF_IN
GPS_ANT
GNSS_SPEEDY
DRX0_I_N/P, DRX0_Q_N/P
TX0_I_P/N, TX0_Q_P/N
PRX0_I_N/P, PRX0_Q_N/P
GNSS_ADC_VIN_I/Q
REAR_CAM
8M
RCAM
1_AF_2P8, RCAM1_DVDD
_1P2, RCAM
1_AVDD
_2P8, RCAM
1_VDDI
O_1P8
RCAM1 MIPI 4LANE
RCAM1_FCAM_I2C, RCAM1_RST_N
FM_ANT
WL_TX_2G, WL_TX_5G
TFT LCD INCELL
DISPLAY
HD+ 5.83"
VDD_TSP_A3P0, VDD_LCD_1P8, VDD_1P8_AP
MIPI_DSI0 4 LANE
TSP I2C
BL IC
S2DPS01
VSN_-5P8, VSP_5P8
LCD_PWM_CON
SIM2_DATA
WLAN_ANT
CAM_EEP_I2C, RCAM_MCL
K
FCAM_MCL
K, FCAM_RST_N
BL_IC_I2C, PANEL_EN_P/N, LCD
BL_EN
GPS_I/Q
TX0_POLAR0_TDD_TRX_SW0
VN_DN
VN_UP
6 Axis Sensor
LSM6DSL
Grip IC
TC305K
GRIP_I2C
VDD_TO
U
CH_2P2
GRIP_INT
SIM2_CLK/RST
OSC
26MHz
TG-500
6CJ-10H
WL_RX_2G, WL_RX_5G
SENSOR
Barometer
LPS22HB
VDD_SE
NSOR_1P8
BAROMETER_I2C
Hall IC
ET3712A30
VDD_1P8_AP
HALL_INT
NFC_ANT2
NFC_ANT1
NFC / FELICA
SEN82ABXS1-YT30
NFC_I2C
NFC_SWP
NFC_IRQ/SWP/FIRM
NFC_CLK_26M/EN
VBA
T, VDD_FELICA_1P8, VDD_FELICA_3P0
VDD_NFC_SIM1_1P8_3P0, VDD_SIM_1P8_3P0
DRX
RF SWITCH
SP
DT
DRX_SW_B5_6_19_26
SUB ANT
LB/MB/HB
DRX_SW_EGSM
RF
SW
I
TCH
SP4T
LB/MB
MMMB
PA
SKY77656-11
S
A
W
S
A
W
S
A
W
S
A
W
TX_TR_OUT_B1_3
TX
_TR
_OUT_B5_6_1
2_1
7_1
9_2
6
TX_PA_OUT_GSMHB, TX_PA_OUT_GSMLB
TX_PA_OUT_B5_6_19_26
TX_PA_OUT_B1
TX_PA_OUT_B3
TR_PA_OUT_B12_17
TRX_B5_6_19_26
TRX_B1
TRX_B3
TRX_B12_17
PRX_TR_IN_G850_B5_6_19_26
PRX_TR_IN_B1
PRX_TR_IN_G1800_B3
PRX_TR_IN_B12_17
TRX_B41
PRX_TR_IN_B41
PRX_TR_IN_EGSM
VRF_PAM_VCC1
VRF_MIPI_IO_1P8, VBA
T
VRF_PAM_VCC1
VRF_MIPI_IO_1P8, VBA
T
PRX_TR_IN_G1900
RF SWITCH
MAIN ANT
HB
MAIN ANT
LB/MB
DRX_TR_IN_B41
DRX_SW_B3
RF
SW
I
TCH
SP4T
DRX_SW_B1
DRX_SW_PCS
DRX_SW_B12_17
RF
SW
I
TCH
SP4T
RF
SW
I
TCH
SP4T
DRX_TR
_IN
_B1_3_PCS
DRX_TR
_IN
_B5_6_1
2_
1
7_1
9_2
6_EGSM
TX_TR_OUT_GSMLB
TX_TR_OUT_GSMHB
TX_TR_OUT_B41
HB
MMMB
PA
SKY77786-11
S
A
W
S
A
W
EGSM_PRX
G1900_PRX
Coupler
GPS LNA
MXDLN16U
DUPLEXER
DPX105
950DT-601
6A1
https://t.me/SMART_PHONE_SCHEMATICS
ANT2001
ANT2004
ANT2005
ANT2006
ANT2007
ANT2009
ANT2010
ANT3004
ANT3005
ANT6000
ANT6001
ANT6006
ANT6007
BH2000
C2001
C2002
C2003
C2004
C2005
C2013
C2014
C2015
C2017
C2018
C2019
C2024
C2025
C2027
C2030
C2031
C2033
C2034
C2035
C2036
C2037
C2038
C2039
C2040
C2041
C2042
C2043
C2044
C2053
C2054
C2055
C2056
C2057
C2059
C2060
C2061
C2062
C2064
C2065
C2066
C2067
C2069
C2070
C2073
C2074
C2089
C3003
C3004
C3017
C3022
C3031
C3041
C3047
C3055
C3057
C3064
C3065
C3080
C3081
C3100
C4000
C4004
C4005
C4012
C4015
C4018
C4030
C4032
C4035
C4071
C4074
C4075
C4076
C4078
C4079
C4080
C4081
C4082
C5018
C5019
C5021
C5022
C5023
C5024
C5026
C5029
C5031
C5032
C5033
C5034
C5045
C5049
C5053
C5061
C5062
C5064
C5066
C5067
C5068
C5069
C5072
C5077
C5078
C5085
C5088
C5090
C5111
C5112
C5113
C5116
C5117
C5120
C5135
C5153
C5166
C5167
C5168
C5172
C5174
C5175
C5178
C5194
C6000
C6001
C6002
C6005
C6009
C6013
C6014
C6015
C6023
C6027
C6033
C6034
C6035
C6036
C6037
C6038
C6042
C6050
C7000
C7001
C7004
C7005
C7008
C7010
C7011
C7013
C7016
C7017
C7018
C7019
C7020
C7021
C7022
C7024
C7025
C7037
C7038
C7040
C7048
C7148
C8179
C8255
CN4000
CON6000
D5000
D5001
D6001
F2000
F2001
F2002
F2004
F2005
F2007
HDC3000
HDC7001
JTAG4001
JTAG4002
L2001
L2002
L2007
L2010
L2012
L2013
L2015
L2017
L2023
L2024
L2026
L2028
L2029
L5010
L5011
L6000
L6001
L6003
L6008
L7007
OSC2000
Q7000
R2002
R3001
R3014
R4001
R4002
R4003
R4004
R4005
R4006
R4007
R4008
R4009
R4010
R4011
R4012
R4015
R4016
R4018
R4020
R4021
R4022
R4023
R4024
R4027
R4029
R4030
R4031
R4035
R4047
R4048
R4049
R4050
R5004
R5008
R5009
R5010
R5011
R5012
R5013
R5014
R5023
R5028
R5030
R6008
R6010
R7002
R7005
R7042
R7043
R7044
R7047
R7049
R7052
R7061
R7063
SC6001
SC6008
SIM6000
TH4000
TP_3000
TP_EMMC4000
TP_GYRO_INT
TP_SPEEDY
TP_SPEEDY_PMIC
TP_UB
TP_VDD_1P8_AP
TP_XGNSS_GPLL_ANA_EXT
TP_XJDBGSEL
TP3001
TP4001_FM_LNA_EN
TP4003
TP4009
TP5000
TP5001
TP5002
TP5003
TP5004
TP5005
TP5007
TP5008
TP5009
TP5010
TP5011
TP5012
TP5013
TP5014
TP5018
TP5019
U10806
U10811
U10812
U10870
U10889
U10905
U10925
U10926
U10941
U10942
U10943
U10944
U10945
U10946
U10963
U2001
U2002
U2005
U2007
U2008
U2009
U2010
U3002
U3006
U3007
U3010
U3013
U3017
U4003
U4004
U5000
U5010
U6000
U7001
U7005
U7006
U7007
UCP400
UME5000
VBUS
VR5000
VSF_TP1
VSF_TP2
ZD5005
ZD5006
ZD5013
ZD5014
ZD6000
ZD6001
ZD6002
ZD6003
ZD6004
ZD6005
ZD6006
ZD6008
ZD6009
ZD6020
ZD6021
ZD7001
ZD7002
ZD7003
ZD7004
ZD7005
ZD7006
ZD7007
ZD7008
https://t.me/SMART_PHONE_SCHEMATICS
ANT2002
ANT2003
ANT2008
ANT3000
ANT3001
ANT3002
ANT3003
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
C1070
C1071
C1072
C1073
C1074
C1075
C1076
C1077
C1078
C1079
C1080
C1081
C1082
C1083
C1084
C1085
C1086
C1087
C1088
C1089
C1090
C1091
C1092
C1093
C1094
C1096
C1097
C1098
C1099
C1100
C1101
C1102
C1103
C1106
C1107
C1108
C1119
C1121
C1125
C1128
C1130
C1144
C2000
C2006
C2007
C2008
C2009
C2010
C2011
C2012
C2016
C2021
C2022
C2023
C2026
C2028
C2029
C2032
C2045
C2046
C2047
C2048
C2049
C2050
C2051
C2052
C2058
C2063
C2068
C2078
C2083
C2088
C2090
C3000
C3001
C3002
C3005
C3006
C3007
C3008
C3009
C3010
C3011
C3014
C3015
C3016
C3018
C3019
C3020
C3021
C3023
C3024
C3025
C3026
C3027
C3028
C3029
C3030
C3032
C3033
C3035
C3037
C3038
C3039
C3040
C3042
C3043
C3044
C3045
C3046
C3048
C3049
C3050
C3051
C3052
C3053
C3054
C3056
C3058
C3059
C3060
C3061
C3062
C3063
C3067
C3068
C3069
C3070
C3072
C3073
C3074
C3076
C3088
C3096
C3097
C4001
C4002
C4003
C4006
C4007
C4008
C4009
C4010
C4011
C4013
C4014
C4017
C4019
C4020
C4021
C4022
C4023
C4024
C4025
C4026
C4027
C4029
C4033
C4034
C4036
C4037
C4038
C4039
C4040
C4041
C4042
C4043
C4044
C4045
C4046
C4047
C4048
C4049
C4050
C4051
C4052
C4053
C4054
C4055
C4056
C4057
C4058
C4059
C4060
C4061
C4062
C4063
C4064
C4065
C4066
C4067
C4068
C4069
C4070
C4072
C4073
C4077
C4083
C4084
C4085
C4086
C4087
C4088
C4089
C4090
C4091
C4092
C4093
C4094
C4095
C4096
C4097
C4098
C4099
C4100
C4101
C5000
C5001
C5002
C5003
C5004
C5005
C5006
C5007
C5008
C5009
C5010
C5011
C5012
C5013
C5014
C5015
C5016
C5017
C5020
C5025
C5027
C5028
C5030
C5035
C5036
C5037
C5038
C5039
C5040
C5041
C5042
C5043
C5044
C5046
C5047
C5048
C5050
C5051
C5052
C5054
C5055
C5056
C5057
C5058
C5059
C5060
C5063
C5065
C5070
C5071
C5073
C5074
C5075
C5076
C5081
C5084
C5092
C5095
C5096
C5097
C5099
C5100
C5101
C5102
C5104
C5107
C5108
C5109
C5110
C5114
C5115
C5118
C5122
C5123
C6003
C6004
C6006
C6007
C6008
C6010
C6011
C6012
C6016
C6017
C6018
C6019
C6020
C6021
C6022
C6028
C6029
C6030
C6031
C6032
C6039
C6040
C6041
C7002
C7003
C7006
C7007
C7009
C7012
C7014
C7015
C7023
C7026
C7027
C7028
C7029
C7030
C7031
C7032
C7033
C7034
C7035
C7036
C7039
C7041
C7042
C7043
C7044
C7147
C8177
C8178
C8180
C8181
C8248
C8249
C8250
C8251
CON6001
F1000
F1001
F1003
F1004
F1005
F1006
F1007
F1008
F1009
F1010
F1011
F1012
F3000
F3001
F3002
F3003
GA7000
HDC7002
HEA6000
L1000
L1001
L1002
L1003
L1004
L1005
L1006
L1007
L1008
L1009
L1010
L1011
L1014
L1015
L1016
L1017
L1018
L1019
L1020
L1021
L1022
L1023
L1024
L1025
L1026
L1029
L1030
L1032
L1033
L1034
L1035
L1036
L1038
L1039
L1043
L1045
L1047
L1053
L1056
L1057
L2000
L2003
L2004
L2005
L2006
L2008
L2009
L2011
L2018
L2019
L2020
L2021
L2022
L2025
L2027
L3000
L3001
L3002
L3003
L3005
L3006
L3007
L3008
L3009
L3010
L3011
L3012
L3013
L3014
L3015
L3016
L3020
L3098
L5000
L5001
L5003
L5004
L5005
L5006
L5007
L5008
L5009
L6002
L6004
L6005
L6006
L6007
L6009
L6010
L6011
L6012
L6013
L6015
L6016
L6017
L6018
L6019
L6020
L7000
L7001
L7002
L7003
L7004
L7005
L7006
L7009
LED5001
MIC6000
OSC3000
OSC5000
PAM1000
PAM1001
Q5000
R1002
R1003
R1005
R2000
R2001
R2006
R3000
R3002
R3003
R3004
R3005
R3006
R3008
R3009
R3010
R3011
R3012
R3013
R4000
R4041
R4042
R5000
R5001
R5002
R5003
R5007
R5015
R5016
R5017
R5018
R5019
R5020
R5021
R5024
R5025
R5027
R5031
R6002
R6003
R6005
R6006
R6007
R6009
R6012
R6013
R6014
R6015
R6016
R6019
R6020
R6028
R7003
R7004
R7011
R7050
R7051
R7062
R7064
R7065
RFS1000
RFS1001
SC6000
SC6002
SC6003
SOC5000
SOC5001
SOC7002
TH1000
TH4001
TP_3001
TP_3002
TP_3003
TP_3004
TP_BCLK
TP_BT_SPDY_FROM_S3000
TP_BT_SPDY_TO_S3000
TP_DI
TP_DO
TP_NFC_3000
TP_NFC_FIRM
TP_NFC_IRQ
TP_PMIC_AP4000
TP_RFFE2000
TP_RFFE2001
TP_WLAN_SPDY_FROM_S3000
TP_WLAN_SPDY_TO_S3000
TP_WS
TP4011
TP4012
TP5006
TP5015
TP5016
TP7001
U1000
U1001
U1002
U1003
U1004
U1005
U1006
U10813
U10923
U10927
U10971
U10990
U10992
U2000
U2003
U2004
U2006
U3000
U3001
U3003
U3004
U3005
U3008
U3019
U5002
U6001
U7003
U7004
U7017
USB_N
USB_P
VR7000
VR7001
ZD1000
ZD3000
ZD3001
ZD5002
ZD5003
ZD5004
ZD5007
ZD6007
ZD6010
ZD6013
ZD6014
ZD6015
ZD6016
ZD6022
ZD7000
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8. Level 3 Repair
8
-
3
.
Flow chart of Troubleshooting.
|
|
|
|
Oscilloscope
|
Digital Multimeter
|
|
|
|
|
Power Supply
|
+ driver, ESD Safe Tweezer
|
|
|
|
|
8960 &
Spectrum
Analyzer
|
Soldering iron
|
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Mobile phone does not power on.
Check the initial operation
8. Level 3 Repair
Yes
No
No
Yes
No
Power-on the phone and check
the power-on sound
or motor Vibration.
Sound or Vibration is ok?
Check the output voltage of U5002
Check the voltage level at
R5020 while pressing power
key. Is the voltage high?
Check the signal of
TRST_N = 1.8V
L5000 > 0.8V, L5001 > 0.8V
Check the Clock OSC5000
Is the frequency 12MHz?
L5003 > 0.8V, L5004 > 0.8V
L5005 > 0.8V, L5006 > 1.1V,
L5007 > 1.3V, L5008 > 2.0V,
8-4-1. Power On
L5009 > 0.8V
and other LDO Voltage
If the output voltage is not normal,
Change the U5002
※
Each voltage level has ±10% margin
No
Replace the OSC5000
※
Test condition (Oscilloscope setting)
: 20.0us.div (time division)
Replace the Pwr+Vol key FPCB
Yes
No
No
No
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?
Yes
No
Yes
Change the FRONT-LCD ASSY
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8. Level 3 Repair
Re Check "Power on"
Trouble shooting process
8-4-2. Initial
Initial Failure
Yes
No
Re
-
download latest SW on the
mobile phone
Abnormal
No
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
Check the Voltage
C2048 : 1.2V, C2016 : 1.8V
C2052 : 1.2V
Check the clock OSC5000
Is the frequency 12MHz?
8
-
4
-
3. No Service
No service
Yes
No
Home screen
→
Phone
→
Keypad
→
*#1234#
→
Check
Phone version
→
CP :
A102
DXXXX or unkown
CP :
A102
DXXXX
Check the connection of RF coaxial cable
Yes
No
Yes
No
END
Replace the U5002
Replace the U5002
No
No
Replace the OSC5000
Yes
No
Yes
No
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8. Level 3 Repair
Check the SIM1(C8255)
Voltage.
= 3.0V or 1.8V?
SIM RST / CLK/ IO.
(SIM1 : ZD6008, ZD6006, ZD6003)
Is signal ok?
8-4-4. SIM Part
Insert SIM card
Yes
No
Is SIM socket ok?
Check the TRAY_DET(R7063)
No
Replace SIM socket
No
Yes
No
Change to the new SIM card.
If it doesn`t still work SIM card after
changing the SIM card,
Yes
No
END
No
Check the UCP400 (Crack etc)
Yes
No
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8. Level 3 Repair
Check the T-flash Voltage.
(C6000) = 3.0V?
Check the t-flash
CMD /Data/CLK.
(ZD6000, U10925, ZD6020)
Is signal ok?
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 the T FLASH, Check the U5002
(Crack etc)
Yes
No
END
No
Check the UCP400 (Crack etc)
Yes
No
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8. Level 3 Repair
Check the
VBUS_5V_OVP(C5112)=5V
Battery is Charging?
8
-
4
-
6
.
C
able
Charging Part
(
Norm
al
)
Insert TA / USB
Yes
Charging Sequence Start
VBUS_5V_CON(C5111) = 5V
No
Replace SUB PBA
No
Yes
Replace U5010
Replace U5002
No
END
Yes
Yes
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8. Level 3 Repair
Check the
VBUS_5V_CON(C5111) = 5V
Check OTG working ?
8-4-7. OTG
OTG does not work
Yes
Check the
VBUS_5V_OVP(C5112) = 5V
No
Check U5002
(crack, open, damaged, etc.)
No
Yes
Check U5010
(crack, open, damaged, etc.)
Replace SUB PBA
No
END
Yes
Yes
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8. Level 3 Repair
Check U3002
SCL, SDA pin
(I2C is OK?)
8-4-8-1. 6Axis Sensor
6Axis Sensor does not work
Yes
No
Check the voltage
C3065 =1.8V
No
Replace U3010
No
Yes
No
END
Yes
No
Replace U30
02
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8. Level 3 Repair
Check SCL, SDA of U3006
(I2C is OK?)
8-4-8-2. Proximity sensor
Proximity Sensor does not work
Yes
No
Check the voltage
C3017, C3022 =3.3V
(Sensor
’
s LED voltage)
No
Replace U3007
No
Yes
No
END
Yes
No
Replace U3006
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8. Level 3 Repair
Check SCL, SDA of U3017
(I2C is OK?)
8-4-8-3. Barometer
Barometer does not work
Yes
No
Check the voltage
C3100 =1.8V
No
Replace U3010
No
Yes
No
END
Yes
No
Replace U3017
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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
C9027 at board = 2.8V
Reconnect
SOC9000
or Replace MIC9000
No
END
Yes
No
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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
C
6019
=
2
.8V
R
eplace
U
5002
No
Yes
No
Replace
MIC
6000
No
Yes
No
END
Check
the
SUB_MIC_DATA at
C
6022, C6030
?
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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
ANT
900
6, ANT9007
Yes
No
Replace Sub PBA
No
Yes
No
Replace
U
6001
No
END
Replace speaker module
Check
the
PWM
output at
ANT9006, ANT9007
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8. Level 3 Repair
8
-
4
-
1
1
. Receiver
Part
Check
receiver
function
in
voice
call
receiver
mode
Yes
No
Check
RCV module
wh
ere RCV's
placed
for any damage
Resolder or Replace
ANT
6000,
AN
T6001
No
Yes
No
Yes
No
END
No
Replace
L6003, L6008
Check the signals on
L6003, L6008
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8. Level 3 Repair
Check the status of ANT3005
C
heck the Status of ANT3005 ~
U3004
Check the voltage
C3007 = 1.1v
C3023 = 1.8v,
C3010 = 3.3v,
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
Yes
No
END
Resolder or change U3004
Yes
No
Resolder or Replace of
ANT3005 ~ U3004
No
Replace of
U5002
Yes
No
No
Yes
No
No
Resolder or change the
ANT3005
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8. Level 3 Repair
Check the Antenna connect
ANT3000, ANT3004
Check(crack,open,etc)
ANT3000, ANT3004 ~ U2003
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 change U2003
Resolder or change the wrong element
(open, crack, deviation, etc)
ANT3000, ANT3004 ~ U2003
No
Yes
No
Yes
No
Yes
No
END
Resolder or Replace ANT3000, ANT3004
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8. Level 3 Repair
Check if ear phone is inserted
8-4-14. FM radio part
Check the status of U3004 ~ Ear jack
Is it ok?
Resolder or Replace
U3004
FM is not working
Yes
No
Enable FM Function.
No
Check the FM function
Yes
No
No
Insert earphone to work FM
Yes
No
No
Resolder of Replace U3004 ~ Ear jack
Yes
No
END
Yes
No
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8. Level 3 Repair
Check the Antenna contact
ANT3001,ANT3002
Check(crack,open,etc)
ANT3001,ANT3002 ~ U3005
8-4-15. NFC
Check U3005
NFC is not working
Yes
Enable NFC Function in the setting
.
No
Check NFC function ON
Yes
No
END
Resolder or change the wrong element
(open, crack, deviation, etc)
Yes
No
Replace the U3005
No
Yes
1. Resolder or Replace the ANT3001,ANT3002
2. Replace MID REAR
Yes
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8. Level 3 Repair
Check
VDD_LCD_1P8 = 1.8V (C7033)
Check
VSN_-5P9 = -5.9V (C7032)
VSP_5P9 = 5.9V (C7034)
8-4-16. Display
LCD is still off after PWR ON
Yes
No
Reconnect the
SOC7002
No
Check the connection of
SOC7002
Yes
No
No
Resolder or Replace the
U
5002
Yes
No
END
Replace the Display module
Yes
No
No
Resolder or Replace the
U
7017
Yes
No
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8. Level 3 Repair
Check the voltage
C7021 : 1.8V , C7022 : 2.8V
C7019 : 1.2V , C7017 : 2.8V
8
-
4
-
1
7
.
8M
REAR
CAMERA
Check the CAM_MCLK is
26MHz (C7037)
“
Came
ra” function does not
work
Yes
Check the Camera connector on Main
PBA
Reconnec
t the HDC
7001
No
Yes
Replace the camera module
Yes
Yes
END
Replace the PBA
No
Yes
Resolder or Replace
U7006, U7007, U7005
No
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8. Level 3 Repair
8
-
4
-
1
8
.
5
M
FRONT
CAMERA
Check the voltage
C7012 : 2.8V
C7014 : 1.2V
Check the FCAM_MCLK is
26MHz (C7004)
“
Came
ra” function does not work
Yes
Check the Camera connector on Main
PBA
Reconnect the H
DC7002
No
Yes
Resolder
or Replace U
7003, U7004
No
Y
es
No
Yes
Yes
END
Replace the Front camera module
Replace the PBA
No
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8. Level 3 Repair
8-4-19. TSP
Check the voltage
VDD_LCD_1P8 (C7033) = 1.8V
Touch Screen does not work
Yes
No
Reconnect the SOC7002
No
Check TSP Connector on
MAIN PBA
Yes
No
No
Resolder or Replace
U
5002
Yes
No
Replace the
Display module
END
Yes
No
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8. Level 3 Repair
8
-
4
-
20
. Motor
Check the C6033,D6001 on MAIN PBA
(crack,open,etc)
Check the voltage C6033 on MAIN PBA
C6033> = 3.3V
Motor does not work
Yes
Resolder or Replace
ANT6006, ANT6007
No
Check the Clip on MAIN
PBA
ANT6006 and ANT6007
Yes
No
Resolder
or Replace
C6033, D6001
Yes
Yes
END
Replace Motor
Resolder or Replace C6033
or
Replace : U6000
No
Yes
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8-4-21. GSM 850/900, WCDMA B5/6/19, LTE B5/12/17/18/19/26 PRx
8. Level 3 Repair
YES
It is not catching the channel
In normal condition
E
ND
NO
Resolder or change
U2003, UCP400
Resolder or
change
A
ntenna path components
NO
NO
Resolder or
change
RX path components
C
heck
ant path any damage
(ANT9000, ANT9003 ~
RFS9001
)
Is it ok? (SUB PBA)
)
Check
RX path any damage
(RFS9001 ~
U2003)
Is it ok?
Check U2003, UCP400
any damage
(Crack, open, etc), is it ok?
i
Change the board
YES
YES
YES
YES
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8. Level 3 Repair
8-4-22. LTE B38/41 PRx
YES
It is not catching the channel
In normal condition
E
ND
NO
Resolder or
change
RX path components
Resolder or
change
A
ntenna path components
NO
NO
Resolder or
change
RX path
components
C
heck
ant path any damage
(
ANT9001
,ANT9004 ~ RFS9000)
Is it ok?
)
Check
RX path any damage
(
RFS9000
~
U2003
)
Is it ok?
Check U2003, UCP400
any damage
(Crack, open, etc), is it ok?
i
Change the board
YES
YES
YES
YES
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8. Level 3 Repair
8-4-23. GSM DCS/PCS, WCDMA B1, LTE B1/3 PRx
YES
It is not catching the channel
In normal condition
E
ND
NO
Resolder or change
U2003, UCP400
Resolder or
change
A
ntenna path components
NO
NO
Resolder or
change
RX path
components
C
heck
ant path any damage
(ANT9000, ANT9003 ~
RFS9001
)
Is it ok? (SUB PBA)
)
Check
RX path any damage
(RFS9001 ~
U2003)
Is it ok?
Check U2003, UCP400
any damage
(Crack, open, etc), is it ok?
i
Change the board
YES
YES
YES
YES
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8. Level 3 Repair
8-4-24. GSM 850/900, WCDMA B5/6/19, LTE B5/12/17/18/19/26 DRx
YES
It is not catching the channel
In normal condition
E
ND
NO
Resolder or change
U
2003
, UCP400
Resolder or
change
A
ntenna path components
NO
NO
Resolder or
change
RX path components
C
heck
ant path any damage
(ANT2008, ANT2002 ~
U2010
)
Is it ok?
)
Check
RX path any damage
(U2010 ~
U
2003
)
Is it ok?
Check
U
2003
, UCP400
any damage
(Crack, open, etc), is it ok?
i
Change the board
YES
YES
YES
YES
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8. Level 3 Repair
8-4-25. LTE B38/41 DRx
YES
It is not catching the channel
In normal condition
E
ND
NO
Resolder or change
U
2003
, UCP400
Resolder or
change
A
ntenna path components
NO
NO
Resolder or
change
RX path
components
C
heck
ant path any damage
(ANT2008, ANT2002 ~
U2007
)
Is it ok?
)
Check
RX path any damage
(U2007 ~
U
2003
)
Is it ok?
Check
U
2003
, UCP400
any damage
(Crack, open, etc), is it ok?
i
Change the board
YES
YES
YES
YES
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8. Level 3 Repair
8-4-26. GSM DCS/PCS, WCDMA B1, LTE B1/3 DRx
YES
It is not catching the channel
In normal condition
E
ND
NO
Resolder or change
U
2003
, UCP400
Resolder or
change
A
ntenna path components
NO
NO
Resolder or
change
RX path
components
C
heck
ant path any damage
(ANT2008, ANT2002 ~
U2007
)
Is it ok?
)
Check
RX path any damage
(U2007 ~
U
2003
)
Is it ok?
Check
U
2003
, UCP400
any damage
(Crack, open, etc), is it ok?
i
Change the board
YES
YES
YES
YES
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.
https://t.me/SMART_PHONE_SCHEMATICS
8. Level 3 Repair
8-4-27. GSM 850/900, WCDMA B5/6/19, LTE B5/12/17/18/19/26 Tx
YES
It is not catching the channel
In normal condition
Resolder or change
TX path components
Change the board
Check
TX path any damage
(RFS1000 ~ ANT9000, ANT9003 ), is it
ok?
NO
E
ND
NO
Resolder or
change
TX path components
Resolder or
change
A
ntenna path components
NO
NO
Resolder or
change
TX path components
C
heck
ant path any damage
(U2003
~ PAM1000)
,
Is it ok?
)
Check
TX path any
damage
(PAM100
0
~
U1001)
Is it ok?
Check
TX path any damage
(U1001 ~
RFS1000)
Is it ok?
?
i
YES
YES
YES
YES
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.
https://t.me/SMART_PHONE_SCHEMATICS
8. Level 3 Repair
8-4-28. LTE B38/41 Tx
YES
It is not catching the channel
In normal condition
Resolder or change
TX path components
Change the board
Check
TX path any damage
(RFS1001 ~ ANT9001, ANT9004 ), is it
ok?
NO
E
ND
NO
Resolder or
change
TX path components
Resolder or
change
A
ntenna path components
NO
NO
Resolder or
change
TX path
components
C
heck
ant path any damage
(U2003
~ PAM1001)
,
Is it ok?
)
Check
TX path any damage
(PAM100
1
~
F1005)
Is it ok?
Check
TX path any damage
(F1005 ~
RFS1001)
Is it ok?
?
i
YES
YES
YES
YES
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.
https://t.me/SMART_PHONE_SCHEMATICS
8. Level 3 Repair
8-4-29. GSM DCS/PCS, WCDMA B1, LTE B1/3 Tx
YES
It is not catching the channel
In normal condition
Resolder or change
TX path components
Change the board
Check
TX path any damage
(RFS1000 ~ ANT9000, ANT9003 ), is it
ok?
NO
E
ND
NO
Resolder or
change
TX
path components
Resolder or
change
A
ntenna path components
NO
NO
Resolder or
change
TX path components
C
heck
ant path any damage
(U2003
~ PAM1001)
,
Is it ok?
)
Check
TX path any damage
(PAM100
0
~
F1001,
F1006
)
Is it ok?
Check
TX
path any damage
(F1001,
F1006
~
RFS1000)
Is it ok?
?
i
YES
YES
YES
YES
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.
https://t.me/SMART_PHONE_SCHEMATICS
8. Level 3 Repair
8-5. Service Schematics
- NC Point(Top View)
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.
https://t.me/SMART_PHONE_SCHEMATICS