LG KF700Q Service Manual page 88

L401 270nH
CN401
21
19
1
2 FB401
3
FB402 1800
4
5 FB403 1800
MSM6280
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
FL401 NUF2116MN
R411
1
IN1 OUT1
2
2200
NC1 NC4
3
NC2 NC3
4
IN2 OUT2
OUT2 IN2
5
NC3 NC2
6
NC4 NC1
7
OUT1 IN1
8
NUF2114MN FL402
Place near MSM
C201 0.1u
C202 47p
C203 47p
C204 10u
[Fig. 4.7] Schematic of Microphone for headset
- 89 -
4. TROUBLE SHOOTING
R405
DNI
R412
8
7
0
6
5
C403 10u
R414 51
4
3
C405 10u
2 R415 51
1
VREG_MSMP_2.7V
L201
100nH
C211 47p
C214 47p
HSET_BIAS
MICBIAS
EAR_MIC_P
HPH_L
HPH_R
FM_ANT
LGE Internal Use Only