Onkyo TX-SR804 Service Manual page 43
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A
B
SCHEMATIC DIAGRAM-8 (SD-8)
POWER SUPPLY SECTION
NAPS-9000
U17
POWER SUPPLY PC BOARD
1
MWT type only
(1/2W)
2.2
R951
R952
2.2
(1/2W)
1SS133
F951
D953
6.3A L250V
D10XB60H
4
1
BROWN
S2+
2
2
BLACK
3
S2-
4
BROWN
F952
6.3A L250V
E5502
F931
3
1.6A L250V
1
S3+
GRAY
2
GNDA
WHITE
3
S3-
GRAY
4
FLAC1A
BLUE
FLAC2A
BLUE
5
F932
1.6A L250V
4
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
NOTE
!
THE COMPONENTS IDENTIFIED BY MARK
ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
IS DC VOLTAGE.(NO INPUT SIGNA
L).
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
5
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS (
) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX)
PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
C
1SS133
D951
R953
0.22
(1W)
D952
Q951 TA7805
1
3
I
O
2
1
+9V
3
XM POWER MDC type only
J952
R966
2SA1488
Q959
0.22
(1/2W)
S812C53
R956
Q952
3
2
I
O
G
33
(1/4W)
1
GND12
Q957
2SA1015
+22V
R970
2.2
(1W)
GNDA
R946
R971
Q955
10
0.22
2SD1858
(1/2W)
(1/2W)
-22V
Q960
2SC1740S
22
2SA965-Y
D957
(1/2W)
Q954
R962
C967
RN1N4003
R963
-VP
+
2.2
220/50
(1/2W)
D
E
L5501
022M
R5503
232TXD
330
R5502
232RXD
POFF2
15
330
+9VVD
14
+9VVD
13
GNDV
12
GNDV
11
-9V_VD
10
+5VDSP
9
+5VDSP
8
GNDD
7
GNDD
6
+5.3VXM
5
GNDD
4
+VMPU
3
POFF
2
D961
RN1N4003
APOWER
1
D962
RN1N4003
2SB1240
Q5502
R5511
3.9
1
D5501
D5502
+12V
2
10S
3
1SS355
1SS355
POFF
4
GNDRL
5
GNDD
6
RN1202
Q5505
Q958
RN1202
GNDD
1
FANDC
2
Q956
RN1202
GNDFL
5
+5VDSP
4
-VP
3
FLAC2
2
FLAC1
1
P959B
TO NAAR-8997
SD-4:H2
F
G
ICL3221E
Q5501
R5506
R5505
16
1
FORCEOFF
EN
C5503
10k
15
2
10k
VCC
C1+
C5505
14
3
1/50
GND
V+
13
4
1/50
T1OUT
C1-
R5504
12
5
C5504
FORCEON
C2+
1/50
10k
11
6
T1IN
C2-
C5506
10
7
INVALID
V-
9
8
1/50
R1OUT
R1IN
GNDD
R5510
100
J5502
J5505
J5596
J5595
U5501
022M
2
L5502
3
1
GNDS
R5524
1K
TX-SR804/804E
H
GNDS
10
C5507
1
6
102K
2
7
R5507
3
RS232
330
8
R5508
4
330
9
5
11
P5504
12V TRIGGER
OUT ZONE 2
P5505
IR IN
J5508
J5507
IR OUT
R5525
100
L
ZONE 2
LINE OUT
R5526
100
R
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