LG KE800 Service Manual page 33

4. Trouble Shooting
2V65_ANA
HOOK_DETECT
R407
1.5K
R409 2.2K
MIC2_N
C403 0.1u
MIC2_P
C404 0.1u
JACK_TYPE
R411
MULTI_PORT_2
C412 R412
C410 C411 MULTI_PORT_3
27p 27p MULTI_PORT_0
10u
MULTI_PORT_1
JACK_DETECT
R414
RPWRON
R446
DSR
TX_DEBUG
RX_DEBUG
FM_ANT
VBUS_USB
R216
10K
_CHG_EN
R221
R217 R222
10K
100K
39K
2V85_IO2
VBUS_USB
R401
U401
LMV7291MGX-NOPB
1M
5
4 VIN-
R402
1 VCC
OUT 3 VIN+
GND
0
C401 2
R408
100p
220K
C402 27p
L401 100nH
33
33
1K
NA
FB405
R416 47
C415 C416 C413 C414
VA401
39p 39p 100p 4.7u
VCHG
U207 ISL6299
1 10
CRDL BAT
2
USB
6 3
IMIN _PPR
4
_CHG
9
ICDL
7 8
USBON GND
5 11
_EN PGND
C241 C242 R218
1u 1u 100K
FB402
FB401
2V65_ANA
2V72_IO 2V72_IO VCHG VBAT
CN401
21
19
1
FB408 2
3
4
FB403
5
FB404
FB409 6
FB410 7
FB411 8
9
10
11
12
13
14
15
16
R417 47 17
18
20
22
VA402
R442
C420 R443
L402
27p
0
100nH 0
As close as possible to the connector
➁
VBAT 2V72_IO
R214
100K
CHG_EOC
C243
1u
U207
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➀