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Flow Chart of Troubleshooting
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10-21
G
AUDIO AMP
MICROPHONE
C426
C429
L401
L400
C415
L406
L405
TA400
R406
C417
C404
C418
VBAT
C424
SCL
C3
B3 SDA
1
B
D
D
V
S
S
V
3
A
NC 1
2
NC
B5
OUT+
D5
OUT-
4
C
D
N
G
P
D
D
V
P
5
C
RXIN+
B4
RXIN-
D4
C1P A5
3
D
D
N
G
A2
HPL
HPR A1
INA1
D2
D1 INA2
C2 INB1
INB2
C1
U401
BIAS
B2
A4
C1N
C411
R415
C428
C431
MIC_BIAS_2.1V
C408
C432
L404
C401
C421
R411
C414
R408
R410
C403
C416
7
0
4
C 7
0
4
C 7
0
4
C
R405
R412
R402
R413
C419
R400
R403
C422
C423
C430
TA401
C405
C402
C427
C400
C425
L403
MIC_MAIN_N
MIC_MAIN_P
MIC_P
MIC_N
HFR_P
HFR_N
SPK_N
SPK_P
SCL
SDA
EARSPK_R
EARSPK_L
EARMICP
EARMICN
EARMIC_P
EARMIC_N
EAR2
EAR1
C406
G
SUB BOARD CON
R604
C619
C601
C630
C633
C634
C631
C602
R600
C604
7
8
8
9
9
C
N
1
6
C
N
2
6
C
N
3
6
C
N
4
6
54
54
55
55
56
56
57
57
58
58
59
59
6
6
60
60
7
47
47
48
48
49
49
5
5
50
50
51
51
52
52
53
53
4
4
40
40
41
41
42
42
43
43
44
44
45
45
46
46
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
25
25
26
26
27
27
28
28
29
29
3
3
30
30
31
31
18
18
19
19
2
2
20
20
21
21
22
22
23
23
24
24
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
HDC601
1
1
TP_HSYNC
C629
C635
R601
TP_VSYNC
C632
C603
C637
R603
C628
R605
R602
C609
LD(6)
LD(4)
LD(2)
LD(0)
LD(1)
LD(3)
LD(5)
LD(7)
LD(9)
LD(11)
LD(12)
LD(10)
LD(8)
SUB_LED_EN
VDD_CAM_IO_1.8V
LCD_ID
KEY_COL(4)
KEY_COL(2)
KEY_COL(3)
M_SDA
Y(3)
Y(1)
Y(5)
HSYNC
Y(0)
Y(6)
Y(7)
Y(2)
VDD_CAM_EN
LCD_RESET
VBAT
VBAT
FLM
KEY_ROW(2)
KEY_ROW(4)
KEY_ROW(3)
SPK_P
SPK_N
VDD_VIB_3.3V
VDD_IO_HIGH_2.9V
LD(14)
LD(13)
LCD_BL_EN
LD(15)
PCLK
LCD_WR
LCD_CS
LCD_RS
M_SCL
VSYNC
M_CLK_OR
MEGA_EN
Y(4)