LG -A290 Service Manual page 70

AK8
JTMS
AM6
JTDI
AJ9
JTCK
AL7
JTRST_B
AP6
JRTCK
AL5
JTDO
N1
VCORE1
R5
VCORE1_FB
D22
VTCXO
B22
VRF
A21
VA
B20
VM
C19
VIBRATOR
B18
VIO
C21
VCAMA
C17
VCAMD
D16
VUSB
A17
VSIM
B16
VSIM2
B14
VREF
A13
BAT_BACKUP
C135
0.1u
LGE Internal Use Only
VCORE_PMU VTCXO
TP2
L100 2.2u
C123
C124
1u
10u
Figure 4.4.4 Power Block of LG-A290
VRF VA VM VIO VCAMA
TP3
TP4
TP5
TP6
C125 C126 C127 C128
1u 1u 1u
4.7u
- 70 - Copyright © 01 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
VHP_1V8
VUSB VSIM1
TP7
TP8
TP9
TP10
TP11
C129 C130 C131 C132 C133
1u 1u 1u 1u 1u
Only for training and service purposes
VSIM2
TP12
C134
1u