Samsung SGH-D520 Service Manual page 42

C435
AOUTBP
YMU-
SPK_SEL
C433
MP3_SPK-
AMP_IN-
AOUTBN
VBAT
TA304
R328
R321
AMP_IN+
R322
AMP_IN-
R329
R319
AMP_EN
C343
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C434
YMU+
C432
MP3_SPK+
AMP_IN+
16
17
21
NC
22
NC
C436
1
1S2
2
1-2IN
3
2S1
4
D2
5
C437
C410
C411
L302
C342
A1
VIP
C1 VIM
TA305
R330 R331
9-9
Flow Chart of Troubleshooting
VBAT
R431
C407
C406
R410
C408
15 14 13
12
D4
11
4S1
U401
10
3-4IN
R409
9
3S2
C409
6 7 8
U303
B1 A2
L300
VDD VSS
VOM A3
PVSS B3
L301
VOP
C3
1 2
R320
AOUTAN
SPK-
MELODY-
AUDIO_OUT_SEL
AOUTAP
SPK+
MELODY+
MELODY-
MELODY+
C334
C335