Pioneer SC-LX90 Service Manual page 239

Audio/video multi-channel amplifier
Table of Contents

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5
R3783
220
C3781
R3829
R3831
W1
4.7/50
0
0
SW1)
ACH7199-A-TS
R3784
220
C3782
R3830 R3832
W2
4.7/50
0
0
SW2)
ACH7199-A-TS
R3603
C3601
R3805 R3807
220
0
0
4.7/50
(L)
ACH7199-A-TS
R3604
C3602
220
R3806 R3808
4.7/50
0
0
(R)
ACH7199-A-TS
R3633
C3631
R3809 R3811
220
4.7/50
0
0
(C1)
ACH7199-A-TS
R3634
C3632
220
R3810 R3812
4.7/50
0
0
(C2)
ACH7199-A-TS
R3663
220
C3661
R3813 R3815
4.7/50
0
0
(LS)
ACH7199-A-TS
R3664
C3662
220
R3814 R3816
4.7/50
0
0
(RS)
ACH7199-A-TS
R3693
220
C3691
R3817 R3819
L
0
0
4.7/50
SBL)
ACH7199-A-TS
R3694
R3818 R3820
C3692
220
0
0
R
4.7/50
(SBR)
ACH7199-A-TS
R3723
220
C3721
R3821 R3823
L
4.7/50
0
0
XTL)
ACH7199-A-TS
R3724
R3822 R3824
C3722
220
0
0
R
4.7/50
EXTR)
ACH7199-A-TS
R3753
R3825 R3827
STBY
C3751
STBY
STBY
L
STBY
ACH7199
R3754
R3826 R3828
C3752
STBY
STBY
STBY
R
ACH7199
STBY
TEA
5
6
IC3781
UPC4570G2-A-TFB
4
C3787
(1/2)
22/25
3
ACH7197-A-TS
R3793
1
270
R3795
8
2
10k
V-15A
V+15A
R3796
6
4
C3788
R3794
7
10k
IC3781
22/25
5
(2/2)
270
UPC4570G2-A-TFB
ACH7197-A-TS
8
4
IC3601
(1/2)
C3607
UPC4570G2-A-TFB 22/25
3
ACH7197-A-TS
R3613
1
R3615
270
8
2
10k
V-15A
V+15A
R3616
6
4
10k
C3608
R3614
7
IC3601
(2/2)
5
22/25
270
UPC4570G2-A-TFB ACH7197-A-TS
8
4
IC3631
(1/2)
C3637
UPC4570G2-A-TFB 22/25
3
ACH7197-A-TS
R3643
1
R3645
270
8
2
10k
V-15A
V+15A
R3646
6
4
10k
C3638
R3644
7
(2/2)
22/25
5
IC3631
270
UPC4570G2-A-TFB ACH7197-A-TS
8
IC3661
4
(1/2)
C3667
22/25
UPC4570G2-A-TFB ACH7197-A-TS
3
R3673
1
R3675
270
8
2
10k
V-15A
V+15A
R3676
6
4
10k
C3668
R3674
7
22/25
5
IC3661
270
(2/2)
UPC4570G2-A-TFB
ACH7197-A-TS
8
4
IC3691
(1/2)
C3697
UPC4570G2-A-TFB
22/25
3
ACH7197-A-TS
R3703
1
R3705
270
8
2
10k
V-15A
V+15A
R3706
6
4
10k
C3698
R3704
7
5
22/25
(2/2)
270
IC3691
ACH7197-A-TS
UPC4570G2-A-TFB
8
C3727
4
IC3721
(1/2)
UPC4570G2-A-TFB 22/25
3
ACH7197-A-TS
R3733
1
R3735
270
8
2
10k
V-15A
V+15A
R3736
6
4
10k
C3728
R3734
7
IC3721
(2/2)
5
22/25
270
UPC4570G2-A-TFB ACH7197-A-TS
8
4
IC3751
(1/2)
C3757
STBY
3
STBY
ACH7197
R3763
1
R3765
STBY
8
2
STBY
V-15A
V+15A
R3766
6
4
STBY
C3758
R3764
7
5
STBY
STBY
IC3751
(2/2)
ACH7197
STBY
8
6
7
PREOUT
Q3781
Q3781
R3801
IMX25-T
IMX25-T
R3797
100
(1/2)
(2/2)
120
R3799
10k
R3800
10k
R3798
Q3782
Q3782
120
R3802
IMX25-T
IMX25-T
100
(1/2)
(2/2)
Q3601
Q3601
R3621
IMX25-T
IMX25-T
R3617
100
(1/2)
(2/2)
120
R3619
10k
R3620
10k
R3618
Q3602
Q3602
120
R3622
IMX25-T
IMX25-T
100
(2/2)
(1/2)
Q3631
Q3631
R3651
IMX25-T
IMX25-T
R3647
100
(1/2)
(2/2)
120
R3649
10k
R3650
10k
R3648
Q3632
Q3632
120
R3652
IMX25-T
IMX25-T
100
(2/2)
(1/2)
Q3661
Q3661
R3681
IMX25-T
IMX25-T
R3677
100
(1/2)
(2/2)
120
R3679
10k
R3680
10k
R3678
Q3662
Q3662
120
R3682
IMX25-T
IMX25-T
100
(1/2)
(2/2)
Q3691
Q3691
R3711
IMX25-T
IMX25-T
R3707
100
(2/2)
(1/2)
120
R3709
10k
R3710
10k
R3708
Q3692
Q3692
120
R3712
IMX25-T
IMX25-T
100
(2/2)
(1/2)
Q3721
Q3721
R3741
IMX25-T
IMX25-T
R3737
100
(1/2)
(2/2)
120
R3739
10k
R3740
10k
R3738
Q3722
Q3722
120
R3742
IMX25-T
IMX25-T
100
(1/2)
(2/2)
Q3751
Q3751
R3771
STBY
STBY
R3767
STBY
(2/2)
(1/2)
STBY
R3769
STBY
R3770
STBY
R3768
Q3752
Q3752
STBY
R3772
STBY
STBY
STBY
(2/2)
(1/2)
SC-09TX
7
8
JA3501
(1/2)
AKB7186
3
SW1
1
2
SW2
JA3501
(2/2)
AKB7186
6
FL
4
5
FR
7
C3811
R9941
0
STBY
JA3502
(1/2)
C3812
AKB7186
R9942
0
3
C1
STBY
1
GNDCH
2
C2
JA3502
(2/2)
AKB7186
6
SL
C3813
R9943
4
0
STBY
C3814
5
R9944
SR
0
STBY
7
GNDCH2
JA3503
(1/2)
JA3504
(1/3)
AKB7186
AKB7189
3
1
SBL
1
3
2
2
SBR
JA3503
(2/2)
JA3504
(2/3)
AKB7186
AKB7189
6
4
X1L
4
6
5
5
X1R
7
C3815
R9945
0
JA3504
(3/3)
STBY
AKB7189
C3816
R9946
7
X2L
0
STBY
9
GNDCH3
8
X2R
10
U
2/2
8
A
B
C
D
E
F
93

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