Only For Training And Service Purposes - LG TU550 Service Manual

SPK_AMP_EN
Copyright © 2007 LG Electronics. Inc. All right reserved.

Only for training and service purposes

Audio AMP
C210
8200p
R202
C211 12n
HPH_R
1K
C212
12n
8200p
C214
R206 C215 12n
HPH_L
1K
C216
12n
C288
1000p
Figure . Audio part schematics
3. TECHNICAL BRIEF
U507 TPA2010D1YZF
62K C1 B1
IN- VDD
R203 B2
PVDD
62K A1
IN+
R204 A3
VO-
C2 C3
_SHDN VO+
C213
1u
U506 TPA2010D1YZF
62K C1 B1
IN- VDD
R207 B2
PVDD
62K A1
IN+
R208 A3
VO-
C2 C3
_SHDN VO+
C219
1u
Microphone
SP0102BE3
5
G3
U303 4
PWR
3
G2
2
G1
1
OUT
- 61 -
R213
+VPWR
0
SPK_R-
SPK_R+
C1820
10u
+VPWR
SPK_L-
SPK_L+
C1819
10u
MIC
MICBIAS
C217 C218
10u
47p
22n C222
MIC1P
LGE Internal Use Only