JVC AV-27530/SC Service Manual page 30

MAIN PWB CIRCUIT DIAGRAM (2/2) SHEET 2
!
F901
VA901
!
C901
!
LF901
!
C902
CNDEG
TH901
R905
R904
.22 .22
C908
K903 3300p
K904
K901
IC901
K902
D907
R908
680
R907
4.7K
D904
C910
C909
470p .0018
D908
IC421-1 IC421-3
1.3 Vp-p
2-7(No.YA050B)
CN0PW
R991
! 2.7M
GND
!
T901
D925
RY901
!
C904
.001
D901
!
!
C999 C998
!
.01
.01
C905
.001
R901 !
T921
C903
470 C929
K921
OPT
K924 D926
R902
47K
R910
C911
.01
680k
C930
K922
D927
R911
R903 47
47K
D902
D905
R906
K923
R925
D903 D928
C907 D906
47/50 OPT
IC421-5
4.2 Vp-p 50 Vp-p
D921
D922
C921
D923 470
D924
C922
OPT
Q921
R921
R922
BW
1k
R923
47k
GND
L921
47
C924
C923
47
R943
82
GND
IC922
R942
5.6
R941
C942
L922 100
IC921
47 C943
0.01
C944
100
R924
C925 C926
1000 100
C940
C941
0.01
100
C946
C931
OPT
C927
470
Y901
OPT
Y902
OPT
MAIN PWB ASS'Y (2/2)
SFE-1039A-M2
IC421-6 Q501-C
34 Vp-p 200 Vp-p
MAIN PWB(1/2)
SHEET 1
STBVCC
GND
D933
MAIN_PW
5V
C945
0.01
GND
9V
A_VCC
A_GND
R938
R936
10K BT
10K D932
R939
GND
10K
Q501-B Q521-C
1 Vp-p 1200 Vp-p
V-OUT
R57
OP
R572
OPT
R573
OPT
R
R
R9
C
10
CN0B1
Q92
R929
22k
R930
47k
Q521-B
3 Vp