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Flow Chart of Troubleshooting
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7-
11
Speaker
MELODY IC
R300
R305
C306
VDD3
C309
/WR
7
VDD
9
VREF
8
VSS
/CS
29
3
/IRQ
/RD
31
4
/RST
28
IOVDD
LED
2
19
MTR
5
NC
PLLC
6
17
SPOUT1
SPOUT2
18
15
SPVDD
SPVSS
16
EQ2
EQ3
14
33
G
G
34
35
G
G
36
HPOUT-L/MONO
10
11
HPOUT-R
32
D1
25
D2
D3
24
23
D4
D5
22
D6
21
D7
20
EQ1
12
13
U301
A0
30
1
CLKI
D0
27
26
C303
R303
2
NC
1
OUT
4
VCC
5
U300
GND
3
IN
VDD2
VDD2
R306
C300
C307
C301
C305
C304
C302
R301
R308
C310
VDD2
R302
R307
HD(7)
HD(6)
HD(5)
HD(4)
HD(3)
HD(2)
HD(1)
HD(0)
HA(1)
AMP_P
AMP_N
SPVDD
MELODY_CS
HRD_N
M_RST
HWR_N
VIB
EARP_HF
MEL_13M