LG LG-D175F - Page 109

3. TROUBLE SHOOTING
- 109 -
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Only for training and service purposes
LGE Internal Use Only
<Main Bot>
WTR2605
(U1500)
TP2: C1507
(+1V225_VREG_L1)
TP1 : C1501
(+2V05_VREG_L9)
TP1 : C1501
(+2V05_VREG_L9)
R1506
0
0.1u
C1512
0.1u C1511
C15100.1u
C15090.1u
+2V05_VREG_L9
4.7uC1507
4.7uC1501
0.1uC1516
0.1uC1506
C1505 0.1u
U1500
46
16
39
19
48
54
40
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
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
+1V225_VREG_L1
+1V8_VREG_L10
10nL1501
0.1uC1504
0.1uC1503
0.1u
C1502
Rev.D
QMC review
Pin40, 52,37,16
Replace_0621
Replace_0621
QMC_review_0717
QMC review
STAR ROUTE
Tuning point (Inductor Placeholder)
TP2
TP1
TP3