![background image](http://html.mh-extra.com/html/samsung/gt-e2120/gt-e2120_service-manual_1192371025.webp)
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
9-2
OSC200
2
4
3
1
OSC201
3
2
1
L201
UART1_RD
W5
UART1_RTS
W6
ICHGN
W8
ICHGP
W9
PMU_VANA
W14
PMU_VIO
W15
UART1_CTS
V7
POK_OUT
V8
PMU_VPERM
W12
PMU_VRF
W13
UART1_TD
V5
PMU_VSIM
V14
PMU_VMEM
V15
PWM_OUT2
T6
PWM_OUT0
T7
POK_IN
T8
PWM_OUT1
T5
UART0_RD
L18
XTAL_32K_1
L19
UART0_TD
K18
XTAL_32K_2
K19
PCM_SYNC
J18
PCM_CLK
J19
SIM_CLK
H19
PCM_DI
H15
PCM_DO
H16
SIM_DATA
H18
RFIL_N
G1
SIM_RST
G16
RFIL_P
F1
RFID_N
E1
XTAL_SHLD
B7
XTAL_SHLD
B8
RFIP_N
C1
RFID_P
D1
XTAL_SHLD
B5
XTAL_SHLD
B6
RFIP_P
B1
RFOL
A2
XTAL_SHLD
A5
XTAL_26M_2
A6
XTAL_26M_1
A7
XTAL_SHLD
A8
UCP201
RFOH
A1
DCL
DU
DD
UART1_RD
UART0_TD
UART0_RD
VGPIO_2.8V
VPERM_3.0V
VANA_2.85V
VRF_2.85V
VSIM_3.0V
VMEM_1.8V
DCSRX_P
DCSRX_N
DCS_TX
EGSM_TX
EGSMRX_P
EGSMRX_N
SIM_DATA
SIM_CLK
SIM_RST
UART1_TD
ICHGN
ICHGP
FSC
ONKEY_2
ONKEY_1
1
S
2
Q
1
00
D
3
G
L111
C137
R128
R119
R125
C133
1
2
3
4
5
6
ZD105
L115
R117
1
2
3
4
5
6
ZD104
R123
C134
C138
L117
VCHG_5V
C150
L113
VBAT
1005
R126
R122
R120
C136
C147
C139
L116
C135
NC 22
NC 23
24
NC
NC 25
26
NC
27
NC
20
20
3
3
4
4
5
5
6
6
7
7
8
8
9
9
21
NC
14
14
15
15
16
16
17
17
18
18
19
19
2
2
HY20-AB0310
IFC100
1
1
10
10
11
11
12
12
13
13
VDD_3.3V
C149
C148
R129
C132
R124
L118
VCM_OUT
JIG_ON_IF
AUX_DET
UART0_RD
JIG_ON
TA_DETECT
USB_EN
UART0_TD
EAR_MIC_N
EAR_MIC_P
EAR_SW_REF
USB_DM
EAR_N
R_ANT
USB_DP
EAR_P
EAR_SW
Summary of Contents for GT-E2120
Page 65: ......