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Flow Chart of Troubleshooting and Circuit Diagrams
- Schematic for Speak part
R343
YMU_L
C332
MSM_L
R339
C333
EARPHONE_L
AMP_EN
NAND_D(1)
NAND_D(0)
NAND_WE
YMU_CS_N
YMU_A0
V_2.7P
NAND_RE
C306
TCXO_OUT
YMU_IRQ
RESET_OUT
C347
18 NC
19
NC
1
VREF
2
VIM
R327
C386
3
VIP
R326
4
EN
C383
25
24
23
33
G
26
D1
27
D0
28
/WR
29
/CS
30
A0
31
/RD
32
IOVDD
34
G
1
2
3
R309
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V_IN
13
17
16
15
14
VOM 12
11
VSS
U302
10
VSS
VOP 9
5
6
7
8
R378
TA385
22
21
20
19
18
17
G
SPVSS
SPVDD
EQ3
U301
EQ2
EQ1
HPOUT-R
HPOUT-L/MONO
G
4
5
6
7
8
9
C310
R308
C311
9-13
LSPK-
LSPK+
R346
R379
C301
C302
R347
36
16
15
14
13
12
C303
11
10
35
V_2.7P
C312
RCV-
RCV+
YMU_R
YMU_L
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