Samsung SGH-T809 Service Manual page 39

Gsm telephone
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Flow Chart of Troubleshooting
C569
MIC_CN2
C571
MIC_CP2
C570
MIC_BIAS
U510
1
6
MIC_SEL2
IN
NO
2
5
V+
COM
3
4
GND
NC
U511
1
6
IN
NO
2
5
V+
COM
3
4
GND
NC
C562
C567
MIC_CN
C564
C563
MIC_CP
C568
C565
2.1V
MIC_BIAS
R500
TA502
R501
R505
R506
VDD_TV_EN
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used with
MIC_BIAS
L500
U514
12
1 A0
VCC
2
0B1 11
0B0
MICIN_P
3
10
GND
S0
4
VCC 9
A1
5
8
0B1
1B1
MICIN_N
6
S1 7
GND
MIC_SEL1
L501
C507
+VDD_IO_HIGH
U512
R520
75
1
6
IN
NO
2
5
V+
COM
TXD1_TVOUT
3
4
GND
NC
TXD1
7-11
out Samsung' s authoriz a tion
C500
C501
C504
C503
C505
C506
+VDD_TV
U503
6 V+
+IN 1
GND
52
ENABLE
4
3
R522
OUU
SAG
TA534
MIC_P
MIC_N
T_OUT

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