Samsung GT-S8500 - Page 39

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Level
3
Repair
8-10
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8-3-4.
Microphone
Check main microphone function
in voice call receiver mode
Yes
Check the Voltage at
C218
=2.8V
No
No
Resolder or change U203
Check component soldering
status at
C236,C240,C241,C242,
ZD404,ZD405,L205
Yes
END
No
Resolder or change the components
Resolve or change the
MIC200
Yes
R210
C236
C241
Z
D
2
0
5
C240
C220
G
N
D
9
NC
4
5
NC
7
VDD
8
VOUT1
6
VOUT2
U203
CE1
1
3
CE2
GND
2
MICBIAS_LDO_2.8V
C218
GND
2
GND1
GND2 GND
3
GND
5
6
GND
1
OUT
4
PWR
MIC200
L205
MICBIAS_LDO_2.8V
C242
V_BAT
C243
VMEM_2.8V
C219
Z
D
2
0
4
MAIN_MIC_
N
MAIN_MIC_
P
MASSMEMORY_EN
MICBIAS_EN