Level 3 Repair
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8-13
8-3-5. Microphone Part (Main MIC)
C
2
1
6
C
2
26
C
2
2
8
C70
2
C70
3
C
7
0
6
C
7
0
8
C716
C
8
00
C8
02
C8
03
C
8
0
4
C80
7
C
8
08
C809
C
8
10
C8
24
C
82
6
C
8
3
7
C838
C
8
3
9
C8
41
C
8
4
3
D700
D
U
F
8
00
L
2
02
L203
L
70
1
L702
L8
01
L
8
0
2
L8
03
L806
L809
L8
10
MIC200
R
2
0
5
R
5
1
5
R5
25
R702
R7
03
R
7
1
2
TA201
TA
700
TP
_B
T_
H
O
S
T_
W
A
K
E
T
P
_
B
T
_
V
R
E
G
_
E
N
U
2
02
U
70
3
U
80
2
B
C
M
43
3
0F
K
F
F
B
G
B
C
M
43
3
0F
K
F
F
B
G
ZD
202
ZD
70
1
ZD
70
2
ZD704
Z
D
7
05
C
1
0
3
C107
C
1
1
5
C116
C1
21
C1
24
C
1
3
0
C
1
3
2
C1
43
C
1
4
4
C1
58
C
1
5
9
C214
C215
C2
17
C
2
3
4
C235
C236
C237
C2
39
C
2
5
3
C261
C265
C266
F
10
1
L
M
S
W
B
F
G
E
-B
2
8
L
M
S
W
B
F
G
E
-B
2
8
L102
L
1
0
9
L
1
1
0
L
1
1
2
L
1
1
3
L114
L
1
1
5
L116
L
1
1
7
L118
L119
L
1
2
1
L
1
2
5
L
1
3
4
L2
10
L2
11
P
A
M
1
0
0
R
2
1
1
R221
U
20
4
Q
T
R
82
00
Q
T
R
82
00
MAIN MIC
C
21
7
C228
C226
2
GND
GND
3
GND
5
6
GND
OUT
1
4
PWR
MIC200
C214
L202
R205
TA201
C216
MIC_BIAS1_2.1V
L203
ZD202
C215
MIC_BIAS1_2.1V
1
U202
CE
3
5
G
N
D
2
GND
VDD
4
VOUT
VPH_PWR
MIC_BIAS_EN
MAIN_MIC_P
MAIN_MIC_N
Check component soldering
status of L202,L203,C214,
C215,C216,ZD202
Resolder or replace
L202,L203,C214,C215,C216,ZD202
END
Check the voltage at C226 =
2.1V
Resolder or replace C226, U202
No
Yes
Yes
Yes
Yes
No
Check the soldering of
MIC200
Check main microphone function
in voice call receiver mode
Resolder MIC200
No
Summary of Contents for GT-I8350
Page 74: ......
