Level 3 Repair
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8-18
8-3-8-1 Microphone Part
- Main MIC
R9020
R9013
C9055
L9015
VREG_L12_2P7
C9047
C
9
0
5
3
V_BUS_5V
Z
D
9
0
1
8
C
9
0
6
0
TP9009
MAIN_MICBIAS_1P8
R
9
0
1
7
R9016
L9011
Z
D
9
0
1
9
Z
D
9
0
0
6
2
1
Z
D
9
0
2
0
C
9
0
5
9
R9043
3RD_MICBIAS_1P8
2
1
Z
D
9
0
0
8
C9057
N
C
6
1
N
C
6
2
N
C
6
3
N
C
6
4
57
57
58
58
59
59
6
6
60
60
7
7
8
8
9
9
5
5
50 50
51
51
52
52
53
53
54
54
55
55
56
56
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
35
35
36
36
37 37
38 38
39
39
4
4
40
40
41
41
28
28
29
29
3
3
30 30
31
31
32
32
33
33
34
34
20
20
21
21
22
22
23 23
24 24
25
25
26
26
27
27
13
13
14
14
15
15
16
16
17 17
18 18
19
19
2
2
HDC9003
1
1
10 10
11
11
12
12
R9044
I|O1
1
I|O2 2
3
GND
Z
D
9
0
1
4
VREG_S4_1P8
R9019
R
9
0
1
5
Z
D
9
0
0
9
2
1
V_BUS_5V
L
9
0
1
4
L
9
0
1
2
R9014
IN
IN
C3
D1
GND
VDO
D2
D3
VDI
MARK
OUT
A1
A2
LCE
IN
A3
B1
OUT
OUT
B2
B3
IN
OUT
C1
C2
U9007
MARK
1
2
TOUCH_3P3
V_BAT
C9086
R9025
2
1
Z
D
9
0
0
7
TP9010
R9012
C
9
0
5
8
2
1
Z
D
9
0
0
5
TP9007
C9056
OK_SW
MAIN_MIC_FB_GND
BATT_THERM
3RD_MIC_DATA
3RD_MIC_CLK
MUIC_DM_JTAG
MAIN_ANT_SW_SEL1
MAIN_ANT_SW_SEL3
MAIN_ANT_SW_SEL2
WACOM_SENSE
WACOM_KEY_1
MUIC_DP
MUIC_DM
PEN_VREF1
MHL_DP
MUIC_DP_JTAG
MHL_ID
JTAG_USB_ID
MAIN_MIC_DATA_CONN
MAIN_MIC_CLK_CONN
HALL_SENSOR_INT
WACOM_KEY_2
MUIC_ID
MHL_DM
Check sub board
connection(HDC9003)
Set the HDC9003 connection
END
No
Yes
Yes
Check main microphone function
in voice call Handset mode or voice recorder mode
Check the voltage at
C8047 = 1.8V
resolder or replace U8009
No
Yes
