JVC TH-S77 - Page 35

2-7
SHEET 6
Mic input section
+
-
+
-
IC701
RC4558D-X
2
3
1
8
4
82p/50
C7102
560k
R7105
J7001
QNS0231-001
2
3
1
7
J7002
QNS0231-001
2
3
1
7
2.7k R7106
0.47/50
C7103
10k
R7104
1/50
C7104
470
R7902
22/16C7901
Q7401
KTC3875/YG/-X
1k
R7103
4.7k
R7101
4.7k
R7102
Q7402
2SC3661-X
VR701 QVQ0320-B54
10k
R7403
33/16 C7402
220k
R7402
D7402
1SS355-X
D7401
1SS355-X
1k
R7201
10k
R7202
2.2K
R79032.2KR7904
47/16C7902
470
R7901
10k
R7404
3.3/25
C7401
1k
R7401
K7001
NQR0007-002X
2.7k
R7107
C7903 0.01/50
C7611
0.1/16
C7613
100/10
C7609 4700p/50
C7608
0.012/50
R7605
10k
R7604 8.2k
R7603
15k
C7605
8200p/50
C7604
0.01/50
C7603
0.47/10
C7602
0.01/16
R7602
15k
R7601
10k C7601 22/10
C7612
120p/50
R7606
43k
C7610
0.01/50
IC761 BU9253FS-X
161514131211109
87654321
IC701
RC4558D-X
6
5
7
0.47/10
C7101
0.22/16
C7201
C7202
1/10
R7607 18k
C7606
1/10
D511
SLI-343URC-W-T
R511 1.5K
CN760
QGF1205F1-09
1 2 3 4 5 6 7 8 9
W7001
QUB220-10DMHP
1
AGND
A+12V
GVA10096-A6
MIC IN 1
MIC
MIC AMP
BUFFER
MIC
(B7102)
(B7198)
(B7197)
VOLUME
MIC IN 2
11.3V
0V
0.4V
10.6V
5.3V
0.4V
0V
0V
NC
(SHEET 2)
CN460 OF
TO MAIN PWB
MIC PWB
GVA10097-A1
0V 0V 2.1V 2.1V 2.1V 2.1V 2.1V
2.1V2.1V
2.1V 1.0V 2.1V 2.1V 5.0V 5.0V 5.0V
DIGITAL ECHO
GND
ECHO BIAS
DAINT DAINT DALPF DALPF
MIXMIX
ADLPF ADLPF ADINT ADINT VCC MUTE
CR
LEVEL
IN
OUT
IN
OUT OUTIN
IN OUT OUT IN
A5V ECHO MICMUTE
5.3V
5.3V
5.3V
5.3V
5.3V
0V
B5V STANBY
STANDBY LED
WITH MIC
QGF1205F1-05 WITHOUT MIC
0V 0V 0V 5.0V
12.6V
0V 0V 3.4V 4.8V
FOR U VERSION ONLY EXCEPT CN701,D511 AND R511