LG KE800 Service Manual page 23

3. TECHNICAL BRIEF
BBP_SND_R
FM_SND_R
BBP_SND_L
FM_SND_L
3.6.2. Microphone
The microphone is a omni-directional microphone condenser microphone with -42 ± 3dB sensitivity.
MAIN_MIC1_P
MAIN_MIC1_N
U208
FSA2267L10X
1
2
3
4
Figure 3-10 Audio signal distribute analog switch
MAIN MICROPHONE
R609 0
R611 0
VMICN
C625
1000p
VMICP
Figure 3-11 Microphone with Gain switching circuit
2V85_IO2
9
1B0 1A
8
1B1 1S
7
2B0 2S
6
2B1 2A
C240
0.1u
C609 C610
27p 27p
C618 0.1u
C619 0.1u
C623 C624
27p 27p
R615 1.2K
R618 1.2K
- 24 -
AMP_IN_R
FM_BBP_SEL
AMP_IN_L
MIC601
1
2
SMA-568-0C-R2