LG KU950 Service Manual page 63

3. TECHNICAL BRIEF
Handset main MIC BLK
Audio Amp for loud Speaker
R710 3.9K
C722 0.1u
SPK_R
R711 3.9K
C723 0.1u
SPK_L
SPK_AMP_EN
SP0204LE5-PB
G3
5
PWR
4
G2
3
G1
2
OUT
1
MIC100
R116
NA
MIC
R118
NA
C109
NA
+VPWR
C718
1608
R707
1u
C720 NA
0
R708 33K
U702 LM4898ITLX-NOPB
B1 C3
VDD VO2
C1 A3
IN- VO1
A1 A2
IN+ BYPASS
C2 B2
SD_SEL SD_MODE
B3
GND
change 2005.12.28
R714 R713 33K
100K
C733 C734
C731 NA
NA NA
SPEAKER AMP(MONO)
C102 C103
47p
10u
C104 22n
C106
NA
C105 22n
R117
C107 C108
0 33p 10p
FB701
FB703
0.33u
C724
C728 C729
22p 22p
- 64 -
MICBIAS
MIC1N
MIC1P
SPEAKER+
=> Speaker
SPEAKER-