LG G5300 Service Manual page 38

HEADSET_MIC_P
U205
MAX4695EGC
AUXIP
HFK_EAR
HFK_EAR
0
1
HEADSET_SPK_P
JACK_DETECT
HEADSET_MIC_P
3V0_VLCD
R220
2.2K
3V0_VLCD
C225
R221
C224 10uF
3.3K
NC (2012)
R222
1M
3V0_VLCD
C232
0.1u
10 6 R235
N_C2 N_C1
0
GOM1 GOM2
11 5
IN1 IN2
12 4
CONNECTION
HEADSET
HFK
(2012)
C234 10uF
L201
100nH
C235 C236
47p 47p
Figure 3-26-1. Voice band circuit diagram.
- 37 -
3. TECHNICAL BRIEF
3V0_VLCD
U206 MAX9075EXK-T
5
VIN- 4
1
VCC
HOOK_DETECT
VIN+ 3 OUT
GND
2
R233
510K
C233
0.1u
AUXIN
R237
2.2K
HFK_AUXIN
HFK_AUXIP
R240
4.7
C237
R241
47p
1M
Headset jack
5
1
3
4 J201