Level
3
Repair
Distribution, transmission, or infringement of any content or data from this document without Samsung
’s
written authorization is
strictly prohibited.
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-12
8-3-4.
Microphone Part
Sub MIC
4
OUT
POWER
1
POWER
MIC501
GND1
GND
2
GND
3
GND2
OUT
Z
D
5
1
2
R502R501
C549
L528
C550
C551
L526
SUBMIC_BIAS_1.65V
C548
L527
C547
SUB_MIC_P
SUB_MIC_N
Check Home key where MIC
is placed
for any damage
(
Tear in
FPCB, etc)
Check component soldering
status of
L527,L528,C547,C548,MIC501
Change the Home key/MIC FPCB
Resolder or replace L527,L528,C547,C548,MIC501
END
No
Yes
Yes
Yes
No
Check microphone function
in voice call speaker mode
or in voice recording mode
Check the voltage at
L526
=1.65V
Resolder or replace L526, U401
No
Yes
C509
C510
C513 C514
C515
C
5
4
3
C
5
4
4
C
5
4
5
C
5
4
6
C
6
7
9
CON205
E
A
R
5
0
0
HDC671
L502
L503
L
5
1
5
L
5
1
6
L
5
1
8
L670
M
I
C
5
0
1
R504
R
5
0
5
R
5
0
6
R507
R
5
0
8
R511
R515
R
5
2
1
R
5
2
5
R
5
2
6
R
5
2
9
R531
R
5
3
3
U501
U
7
3
2
ZD504
Z
D
5
0
5
Z
D
5
0
6
To Next Page
Loading...
