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.
8-10
8-3-4. Microphone Part
Check IRLED + MIC FPCB
Assy for any damage
(crack,tear in FPCB,etc)
Replace the IRLED + MIC FPCB Assy
Yes
Yes
No
Check microphone function
in voice call speaker mode
or in voice recording mode
Check component status of
L505, L506(crack,short,etc)
Resolder or replace L505, L506
END
No
YES
Replace U504
ZD502
L505
R528
C508
C509
C507
L506
C510
MIC_N_CON
MIC_P_CON
MAIN_MIC_P
MAIN_MIC_N
C513
MAIN_MICBIAS_2.8V
C533
R520
C514
VPH_PWR
C515
C516
C523
C517
TP_CODEC_REEST_N
C518
TP_SLIMBUS_DATA
EAR_MICBIAS_LDO_2.8V
L509
C522
5
5
G
N
D
_
S
P
K
D
R
V
N
C
5
6
N
C
5
7
6
BUCK_VOUT1
7
G
N
D
_
B
U
C
K
8
RESET_N
9
DMIC0_CLK
48
MIC_BIAS2
49
SPKR_DRVP
5
G
N
D
50
SPKR_DRVM
51
MIC_BIAS3
52
MIC5_INP
53
MIC2_INM
54
MIC_BIAS1
4
0
G
N
D
_
S
P
K
D
R
V
41
MIC4_INM
42
MIC4_INP
43
MIC3_INM
44
MIC1_INP
4
5
V
D
D
_
S
P
K
D
R
V
46
MIC5_INM
47
MIC2_INP
33
MODE
34
LDO_HI_CAP
3
5
V
D
D
_
V
B
A
T
36
LINE_OUT1
37
MBHC_HSDET
38
MIC3_INP
39
MIC1_INM
4
INTR
26
EAROP
2
7
V
D
D
_
T
X
_
R
X
2
8
G
N
D
29
MCLK
3
V
D
D
_
B
U
C
K
30
SLIMBUS_DATA
31
EAROM
32
LINE_OUT2
1
9
V
D
D
_
D
IG
2
NCP_C1P
20
SLIMBUS_CLK
21
HPH_R
22
CCOMP
2
3
G
N
D
_
C
F
IL
T
24
DMIC0_DATA
2
5
G
N
D
11
NCP_VNEG
12
BUCK_VOUT2
13
BUCK_VSW
14
DMIC1_DATA
15
DMIC1_CLK
16
HPH_L
17
HPH_REF
1
8
G
N
D
U504
1
NCP_C1M
1
0
V
D
D
_
IO
C532
TP_CODEC_MAD_INT_N
C531
TP_SLIMBUS_CLK
S
P
K
D
R
V
_
G
N
D
MAIN_MIC_P
EAR_VPS_L
EAR_VPS_R
SPK_R
SPK_L
EAROUT_FB
EAR_MIC_N
EAR_MIC_P
MAIN_MIC_N
C
O
D
E
C
_
B
U
C
K
_
G
N
D
C
O
D
E
C
_
B
U
C
K
_
G
N
D
SLIMBUS_CLK
SLIMBUS_DATA
C
O
D
E
C
_
B
U
C
K
_
G
N
D
S
P
K
D
R
V
_
G
N
D
C
O
D
E
C
_
B
U
C
K
_
G
N
D
CODEC_RESET_N
CODEC_INT_N