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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
Microphone
Audio AMP
MIC
C218
47p
U303
SP0102BE3
2
G1
G2
3
G3
5
OUT
1
4
PWR
C219
1u
C1820
10u
62K
R203
10u
C1819
C223
39p
1K
R202
R206
1K
C217
10u
62K
R208
C210
8200p
C288
1000p
R204
62K
12n
C215
R213
0
12n
C212
C224
10p
C216
12n
C211
12n
C214
8200p
R207
62K
A2
GND1
B3
GND2
IN+
A1
IN-
C1
PVDD
B2
B1
VDD
VO+
C3
VO-
A3
C2
_SHDN
A1
IN-
C1
PVDD
B2
B1
VDD
VO+
C3
VO-
A3
C2
_SHDN
TPA2010D1YZF
U507
TPA2010D1YZF
U506
A2
GND1
B3
GND2
IN+
C213
1u
22n
C222
MICBIAS
+VPWR
SPK_R+
SPK_R-
SPK_L+
SPK_L-
+VPWR
SPK_AMP_EN
MIC1P
HPH_R
HPH_L
Figure . Audio part schematics
Summary of Contents for TU550
Page 1: ...Date May 2007 Issue 1 0 Service Manual Model TU550 Service Manual TU550 Internal Use Only ...
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