LG G5300 Service Manual page 100

2V8_VMEM
R327 R328 R329
100K 100K 100K
DSR
USC3
USC0
USC1
USC2
USC4
USC5
ACC_DET
RX
TX
HFK_AUXON
HFK_AUXOP
HFK_AUXIP
HFK_AUXIN
RPWRON
BATT_TEMP
HEADESET_MC_P
AUXIP
HFK_EAR
U203
3V0_VLCD
U203 MAX4624EUT-T
1
HFK_EAR IN NO
2
VCC COM
3
GND NC
R330
100K
R331 NA
R332 NA
R333 47
R334 47
R335 47
R336 47
R337 47
R338 47
R339 47
R341 4.7
R342 4.7
R343 100
R344 100
R345 47
R346 0
C224
NC
U205
3VD_VLCD
U205
MAX439sEGC
9
NC1
10
N_C2
11
GOM1
12
IN1
NC1
1
6
HFK_AUXOP
5
AUXOP
4
HEADSET_SPK_P
3VD_VLCD
R220
2.2K 3VD_VLCD
C225
3VD_VLCD
R221
10uF
3.3K
(2012)
R222
1M
VDO
VDO
C232
8 7
0.1u
/4 NC2
6
R235
N_C1
0
5
GOM2
4
IN2
R235
NC2 2.2K
2 13 3
HFK_AUXIN
HFK_AUXIP
3V0_VLCD
HFK_EAR
- 99 -
4. TROUBLE SHOOTING
VBAT VCHARGE
C339
C340
39p
39p
C336 C337 C338
39p 39p 39p
4
5
1
VDO
HOCK_DETECT
3
CNO
VDO
2
C233
0.1u
AUXIN
U204
U204 MAX4624EUT-T
1 6
IN NO HFK_AUXON
2 5
VCC COM AUXON
3 4
GND NC
C223
0.1u
CN302
CN302
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
I/O CONNECTOR