LG KG290 - Page 33

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3. TECHNICAL BRIEF
- 34 -
H
RECEIVER
ACOUSTIC & MIDI
L
SPEAKER
SPK_SEL
NAC200
R214
200K
R201 39K
C208
0.47u
0.47u
C207
R209 10K
0
R202
R213
100K
2.2u
C203 39p
C202
R210 0
C211 NA
39KR215
NC1
5
7
NC2
2
NO1
10
NO2
1
VCC
NLAS5223BMNR2G
U202
COM1
3
COM2
9
GND
6
4
IN1
8
IN2
10KR211
220n
VBAT
C209
VBAT
0R208
BYPASS
2
GND
7
3
IN+
IN-
4
PGND
9
6
VDD
VO+
5
VO-
8
_SHUTDOWN
1
TPA6205A1DRBRU201
C201
0.1uC204
0.1u
AMP_SHDN
ABB_P
SPK_P
SPK_N
ABB_N
SPK_SEL
SPK_SEL
REC_N
REC_P
SPK_P
SPK_N
SPK_RCV_N
SPK_RCV_P
Figure 3-13. MAIN SPEAKER