3. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
3.2 Checking Transceiver DC Power Supply Circuit Block
U1002
TP3(2.05V)
TP2(1.8V)
TP1(1.3V)
10n
L1009
C1042
1u
+1.8V_L4_RF_D
0.1u
C1036
L1008
10n
C1034
0.1u
C1033
0.1u
C1035
0.1u
4.7u
C1032
+1.3V_L1_MSM_A1
C1025
0.1u
C1024
0.1u
C1023
0.1u
C1022
0.1u
C1021
4.7u
+2.05V_L7_RF2_WTR
U1002
46
16
39
19
48
54
40
11
26
59
52
30
21
37
20
31
VDD_RF1_G_LO
VDD_RF1_LNA
VDD_RF2_T_VCO
VDD_RF1_G_PLL
VDD_RF1_R_LO
VDD_RF2_T_PLL
VDD_RF3_IO
VDD_RF1_T_LO
GNSS_RF_IN
VDD_RF2_R_PLL
VDD_RF2_XO
VDD_RF1_DIG
VDD_RF2_R_BB
VDD_RF1_R_VCO
VDD_RF2_T_DA
VDD_RF1_T_PLL
C1026
0.1u
100n
L1006
WTR_GPS_IN
TP1(1.3V)
TP3(2.05V)
TP2(1.8V)
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