Samsung GT-i8910 Service Manual page 89

Flow Chart of Troubleshooting
DAC_REF
VREG_RFRX1_2.1V
VREG_RFRX1_2.1V
RTR6285_TCXO
VREG_RFRX2_2.7V
C136 C137
VREG_RFRX2_2.7V
C140
VREG_RFRX2_2.7V
C154
SSBDT_RTR
R110
VREG_RFRX1_2.1V
R111
VREG_RFRX2_2.7V
VREG_MSMP_2.6V
VREG_RFRX1_2.1V
UMTS_900_TRX
C103
C125
C124
C129
C130
R109
1
VDDA2
2
TCXO
3
VDDA1
4
VDDA1
C138
5
VTUNE1
6
VDDA1
7
VDDA2
8
VDDA2
C141 C143 9
VTUNE_GPS
10
VDDA1
11
RX_QP PRX_QP
12
RX_QM PRX_QN
13
RX_IM PRX_IN
14
RX_IP PRX_IP
15
RX1_QP DRX_QP
16
RX1_QM DRX_QN
17
RX1_IP DRX_IP
C155 RX1_IM
C162
C161 C165
C164
C170 C171
C173
C172
C174
C175
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C105
C113
C115
C120
C122
C126
C132 C133
C135
51
GCELL_INN
50
GCELL_INP
49
EGSM_INN
48
EGSM_INP
47
DCS_INN
46
DCS_INP
45
GPCS_INN
44
RFT100 GPCS_INP
43
VDDA2
42
GPS_IN
41 L144
WDRXLB
40
WDRXHB1
39 C146
WDRXHB2
38
WPRXSE1
37
VDDA2
36
WPRXSE2
35
WPRXSE1_OUT
C166
L118
R113
F102
C167
1
IN
G
L120
2
9-52
C111 C112
C128
C127
GSM850_RXM
GSM850_RXP
GSM900_RXM
GSM900_RXP
DCS_RXM
DCS_RXP
PCS_RXM
PCS_RXP
C149
C156 C157
L119
3
OUT
L121
OUT 4
G
5 L122
④
VREG_RFRX1_2.1V
UMTS_TX_2100
UMTS_TX_1900
UMTS_TX_900
DCS_PCS_TX
GSM_TX
VREG_RFRX1_2.1V
VREG_RFRX2_2.7V
PWR_DET
RX_GPS
VREG_RFRX1_2.1V
UMTS_RX_2100
UMTS_RX_1900_M
UMTS_RX_1900_P
UMTS_RX_900_M
UMTS_RX_900_P