Main Digital Assy (8/8) - Pioneer SC-LX90 Service Manual

1
10.23 MAIN DIGITAL ASSY (7/8)
A
O
6/8
B
V+15A
C
GNDA
D
E
V-15A
F
O
7/8
48
1
2
C979
YB
470p
C980
YB
0.1
C983
YB
470p
C984
YB
0.1
C985
YB
470p
C986
YB
0.1
GNDAD
INPUTATT
6
4
-
C801
R801
7
5 6.8k 1% ACH7198
+
8
47/25
uPC4570G2
IC803 (2/2)
E
R807
IMX25
Q801 B
22k
C
C2
R808
Q801 B2
IMX25
22k
E2
IC803 (1/2)
uPC4570G2
4
+
R802
C802
3
1
6.8k 1%
ACH7198
-
8
2
47/25
6
4
-
R901
7
5 6.8k 1% ACH7198
+
8
47/25
uPC4570G2
IC903 (2/2)
E
R907
IMX25
Q901 B
22k
C
C2
R908
Q901 B2
IMX25
22k
E2
IC903 (1/2)
uPC4570G2
4
+
R902
3 C902
1
6.8k 1%
ACH7198
-
8
2
47/25
O
6/8
2
3
BA
CN4102
J973
2 1
ADX7591
GNDD
C803
100p
CH
R813 R815
3.9k 1% 820 1%
R811
6
4
-
2.7k 1% 7
5
+
8
NJM2068MD
IC801 (2/2)
NJM2068MD
IC801 (1/2)
4
+
3
R812
1
-
8
2
2.7k 1%
R814 R816
3.9k 1% 820 1%
C804
100p CH
C903
100p
GNDASP
CH
R913 R915
3.9k 1% 820 1%
R911
6
4
-
2.7k 1% 7
5
+
8
IC901 (2/2)
NJM2068MD
IC901 (1/2)
NJM2068MD
4
+
3
R912
1
-
8
2
2.7k 1%
R914 R916
3.9k 1% 820 1%
C904
100p CH
SC-09TX
3
4
V+5AD V+5ADC
IC971
NJM2391DL1-33
IN OUT
1 3
L971
2
ATL7002
C809
stby
GNDAD
R819
3.9k 1%
GNDD
R817
6
4
-
C811
3.9k 1% 7
5 ACH7196
+
8
10/50
(2/2)
IC802
C813
NJM2068MD
ACH7196
10/50
R859
0
C829
R860:0
IC802 (1/2)
C814
NJM2068MD
ACH7196
10/50
4
+
C812
3
R818
1
ACH7196
-
8
2
10/50
3.9k 1%
R820
3.9k 1%
C810
stby
C909
stby
R919
3.9k 1%
R917
6
4
-
C911
3.9k 1% 7
5 ACH7196
+
8
10/50
(2/2)
IC902
C913
NJM2068MD
ACH7196
10/50
R959
0
C929
R960:0
IC902 (1/2)
C914
NJM2068MD
ACH7196
10/50
4
+
C912
3
R918
1
ACH7196
-
8
2
10/50
3.9k 1%
R920
3.9k 1%
C910
stby
4
V+3AD
D801
MC2848-11
R821
22
R823
22
D803
MC2846-11
R829
10k 1%
R830
10k 1%
D804
MC2846-11
R824
22
R822
22
D802
MC2848-11
D901
MC2848-11
R921
22
R923
22
D903
MC2846-11
R929
10k 1%
R930
10k
1% D904
MC2846-11
R924
22
R922
22
D902
MC2848-11