Schematic Diagrams; Power Amplifier Section - Onkyo A-9555 Service Manual

A
QQ
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SCHEMATIC DIAGRAMS-1

POWER AMPLIFIER SECTION

1
To NAAF-8708(2/2)
(SD-2 : D2)
Lch
GND
Rch
M_GND
2
TE
L 13942296513
3
4
www
5 PRT
DCPRT
PWMCNT
NFMUTE
+12V
+5V
GND
SPBRL
.
To NAAF-8708(2/2)
SPARL
(SD-2 : D4)
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B
Lch
C431 R493
681 1.2K
Q401A
HN3C51F-BL
C403
47/50
R401
6
5
2.2K
R427
100 1
3
DC OFFSET
ADJUST.
R429 R431
47 47
Q403
2SC2712-GR
-13V
Rch
C432 R494
681 1.2K
Q402
HN3C51F-BL
C404
47/50
R402
6
5
2.2K
R428
100
3 1
R430 R432
47 47
Q404
2SC2712-GR
R630
TLP283-4
Q615
2.2K
Q620
RN1402
-13V
R632
2.2K
Q624
RN1402
Q616
RN1402
Q617
RN1402
x ao u163
y
Q674
2SA950
Q671
Q618 Q619
i
TLP283
RN1402 RN1402
R673
390
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8
+13V
RN2404 Q405A
HN3A51F
Q621
6
C407
HN3A51F
47/50 R575 R577
Q419 47K 560K
(180K)
R421 RN1441 R417
47K R415 0
8.2K
(6.8K)
Q411
2SC2713 R489
12K
C411
104
TF-C
C437
C435
100/25 100/25
+13V
Q622
RN2404 Q406A
HN3A51F
Q Q
3 6 7 1 3
R658 15K
5
DC OFFSET
ADJUST.
Q418B
C408
R576 R578
HN3A51F
47/50 47K
560K
(180K)
Q420
R422 RN1441 R418
47K R416
0
8.2K
(6.8K)
Q412
2SC2713
C412 R490
104
12K
TF-C
Q623
RN1402
Q614
2SC2712
.
R643 R644
100K 68K
C
2 9 9 4 2 8
R481
2
120F
6
4
1
5 Q405B
HN3A51F
3
2 4
Q407
5
HN3A51F
1
3
6
5
Q409
HN3C51F-BL
2 5 4
6
Q417
1
3
R583
3.9K
C583
101
C417 C419
102F 102F
D411
1SS352
D407
12 13 11 10 9 8
1SS352
D413
Q413A
1SS352
TC74AC14FT
D409
5 6
1SS352
1 2 3 4
R482
120F
2
6
4
1
5 Q406B
HN3A51F
1 5 0 5 8 2 9 9 4
3
2
4
6 Q408
HN3A51F
3
1
5
6
Q410
H3C51F-BL
5
2 6 4
1 3
R584
3.9K
C584
101
C418
C420
102F 102F
TF-C TF-C
D412
1SS352
D408
2 1 3 4 5 6
1SS352
D414
1SS352
12 13 10 11
D410
9 8
1SS352
Q414A
TC74AC14FT
m
Q613
co
M51957BFP
1 NC1 8
NC3
2 IN 7
VCC
3 NC2 6
OUT
4 GND 5
C
A-9555
D
9 9
R580
56
R564
220
3
R581
3.9K
R667
22K
C581
101
-52V
Q415A
TC74AC00FT
R469
0
12
11
R465
13
1.8K
9
R471
8
10
0
R467
1
2.7K
3
2
4
6
5
-57V
C679 104
Q
R579
56
2 8 9 9
R565
220
3
R582
3.9K
R668
22K
C582
101
-52V
Q416A
TC74AC00FT
R470
0
2
3
1
R466
1.8K
5
6
4
R472
0
13
11
12
R468
2.7K
10
8
9
-57V
C680 104
-52V
Q672
1
RN2402
Q673
RN1402