LG KE600 - Cell Phone Service Manual page 77

5. Trouble shooting
R202 220K
RTC_OUT
R204
470K
VBAT
VCHS
PWRON
USB_PU
VBUS_USB
C213
0.1u
2V72_IO 2V85_MMC
C231
2.2u
R203
PWRON VBACKUP
SPOWER_INT
VCH_CTL
PMRSTn
1V8_MEM 3V1_USB 1V5_RF VBAT
1
2
3
4
5
6
L201 10uH
7
8
9
10
11
12
C214 C215 C216 C217 C218
22u 22u 2.2u 2.2u 2.2u
2V85_IO2 2V85_SIM VBAT
C232 C233 C234 C235
2.2u 2.2u 2.2u 0.1u
VCHG 2V11_RTC 1V5_CORE
4.7K
C203 C204
2.2u 2.2u
36
VCHS VCXOEN
35
VBATS VDDA
34
VRFC VANA
33
ON VSSR
R208
32
U201
VDDPW IREF
C210
31
SW BYP
30
PMB6812
VSSPW VDDAU
29
VSSFB AUOP
28
FB AUON
27
VUPU VSSAU
26
VUSB AUIP
25
VBUS AUIN
- 78 -
1V5_DSP 2V85_RF VBAT 2V7_VCXO 2V65_BT
C205 C206 C207 C208 C209
2.2u 2.2u 2.2u 2.2u 2.2u
2V65_ANA VBAT
TP604
VCXO_EN
82K C211 C212
0.1u
2.2u 2.2u
TP211
TP212
TP213
TP214
VCHG
R209 C227 Q201 C228
6
S2
100K 10u
47n
4
S1
3
VCH_CTL
G
1
D3
2
D2
5
D1
NDC652P
D201
CRS08
VCHS
R212 VBAT
0.15
C237
100u