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3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure . Audio part schematics
MIC
SELECT_SPK&RCV
0.01u
C416
39p
C418
39p
C417
NLAS5223BMNR2G
U401
COM1
3
COM2
9
GND
6
4
IN1
8
IN2
NC1
5
7
NC2
2
NO1
10
NO2
VCC
1
5
G3
1
OUT
PWR
4
MIC400
SP0204LE5-PB
G1
2
3
G2
C407
0.1u
C402
47p
0.1u
C409
10u
C400
+VPWR
MIC1P
MIC1N
MICBIAS
SPK_RCV-
RCV-
RCV+
SPK+
SPK-
RCV_EN_N
Audio AMP
C408
10u
0.01u
C406
33K
R410
IN-
D1
B1
NC
B4
VDD1
C4
VDD2
D4
VO+
VO-
A4
_SD
A1
U403
TPA2005D1ZQYR
GND1
A2
A3
GND2
GND3
B3
C2
GND4
GND5
C3
D2
GND6
GND7
D3
IN+
C1
0.01u
C405
R408 33K
C412
1u
SPK-
SPK+
LINE_N
SPK_AMP_EN
+VPWR
LINE_P
Summary of Contents for U370
Page 1: ...Date January 2008 Issue 1 0 Service Manual Model U370 Service Manual U370 ...
Page 178: ...Note ...
Page 179: ...Note ...