Checking Transceiver Dc Power Supply Circuit Block - LG -D605 Service Manual

3.2 Checking Transceiver DC Power Supply Circuit Block

TP3(2.05V)
+2.05V_L7_RF2_WTR
+1.3V_L1_MSM_A1
TP1(1.3V)
LGE Internal Use Only
WTR_GPS_IN
10n
L1009
L1006
10n
L1008
TP2(1.8V)
+1.8V_L4_RF_D
U1002
TP1(1.3V)
TOP
11
GNSS_RF_IN
19
VDD_RF2_R_BB
16
VDD_RF2_T_DA
37
100n
VDD_RF2_T_VCO
52
VDD_RF2_T_PLL
40
VDD_RF2_R_PLL
54
VDD_RF2_XO
39
VDD_RF1_R_VCO
46
VDD_RF1_T_PLL
26
VDD_RF1_T_LO
30
VDD_RF1_R_LO
20
VDD_RF1_LNA
48
VDD_RF1_DIG
31
VDD_RF1_G_LO
21
VDD_RF1_G_PLL
59
VDD_RF3_IO
- 45 - Copyright © 2013 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
TP2(1.8V)
TP3(2.05V)
U1002
Only for training and service purposes