Samsung GT-E2120 Service Manual page 25

Flow Chart of Troubleshooting
UCP201
VBAT VCHG_5V
IFC100
HY20-AB0310
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
NC
1005
NC 22
NC 23
24
NC
NC 25
26
NC
27
NC
R120
L111
L113
L115 R122
L116
L117 R123
JIG_ON_IF
L118
R125
R126
TA_DETECT
R129
ZD104
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
J19
PCM_CLK DCL
H15
DU
PCM_DI
H16
DD
PCM_DO
J18
FSC
PCM_SYNC
W15
VGPIO_2.8V
PMU_VIO
W14
PMU_VANA VANA_2.85V
L201
V15
PMU_VMEM VMEM_1.8V
W12
PMU_VPERM
VPERM_3.0V
W13
PMU_VRF VRF_2.85V
V14
PMU_VSIM
VSIM_3.0V
T8
POK_IN ONKEY_2
V8
POK_OUT
ONKEY_1
T7
PWM_OUT0
T5
PWM_OUT1
T6
PWM_OUT2
W8
ICHGN
ICHGN
W9
ICHGP ICHGP
E1
DCSRX_N
RFID_N
D1
DCSRX_P
RFID_P
G1
EGSMRX_N
RFIL_N
F1
EGSMRX_P
RFIL_P
C1
RFIP_N
B1
RFIP_P
A1
DCS_TX
RFOH
A2
RFOL EGSM_TX
L18
UART0_RD UART0_TD
K18
UART0_RD
UART0_TD
W5
UART1_RD UART1_RD
V5
UART1_TD
UART1_TD
V7
UART1_CTS
W6
UART1_RTS
A7
XTAL_26M_1
A6
XTAL_26M_2
L19
XTAL_32K_1
K19
XTAL_32K_2
OSC201
B8
XTAL_SHLD
A8
XTAL_SHLD
B6
XTAL_SHLD
A5
XTAL_SHLD
B7
XTAL_SHLD
B5
XTAL_SHLD
H19
SIM_CLK
SIM_CLK
H18
SIM_DATA
SIM_DATA
G16
SIM_RST
SIM_RST
EAR_SW_REF
C133
C136
C138
R_ANT
EAR_N
VCM_OUT
EAR_P
EAR_SW
AUX_DET
UART0_TD
UART0_RD
JIG_ON
C147 C149 C150
C148
ZD105
9-2
OSC200
R117 C132
C134
EAR_MIC_P
C135
C137
EAR_MIC_N
C139
R119
VDD_3.3V
R124
USB_EN
USB_DP
USB_DM
R128