Onkyo TX-SR603 Service Manual page 23

A B
SCHEMATIC DIAGRAMS-6
POWER SUPPLY SECTION
1
DD, DC-Type
F903
5A/125V
!
!
!
P912
F901
10A/125V
P902
AC OUTLET
!
120W MAX
1A MAX
PP, PA-Type
2
F903
T2.5AL250V
!
!
!
P912
F902
T5AL/250V
P902
!
AC OUTLET
100W MAX
GR, GQ-Type
F903
T2.5AL250V
!
!
!
P912
3 F902
T5AL/250V
P902
!
AC OUTLET
100W MAX
GK-Type
OUTLET
U16
PC BOARD
!
NAPS-8534
! P912
!
! F903
T2.5AL250V
P902A F902
T5AL/250V
P926A
P926
4
P925A
P925
AC OUTLET 100W MAX
!
WT-Type
!
P912
F902
F903 !
S902 T5AL/250V
T2.5AL250V
VOLTAGE
SELECTOR
!
220V
F901
!
10A/125V
!
P902
AC OUTLET 120V
100W MAX
5
C
NOTE
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
T901
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS (
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.
<Note>
NC=No mount of parts.
T901
U15
POWER SUPPLY-1 PC BOARD
D935
R934
D933 D934
100K
T901
D930
C930 C933
D931
100/35 4.7/50
D932
WT type only
C921
R930 Q930
223Z
100K SI-3010KF
I
G
R931
C931
100K
10/50
T901 C922
DESTINATION DESCRIPTION
T902 DD, DC 2200/25
PP, PA 2200/16
GR, QG, GK 2200/16
WT 2200/35
T901
!
P901
Refer to left diagram
AC-H
for each destination.
AC-G
P901A
Refer to following table about the parts displayed by mark "
DESTINATION AC IN T902
DD, DC 120V/60Hz DESTINATION
DESCRIPTION
PP, PA 230-240V, 50Hz
DD, DC NPT-1520JQ
GR, QG, GK 220-230V, 50/60Hz PP, PA NPT-1520GQ
WT 120V/220V, 50/60Hz
GR, QG, GK NPT-1520GQ
WT NPT-1520JQ
D E
NAPS-8535
! ARE CRITICAL FOR SAFETY
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
NAPS-8533
C9708
222J
Except
WT type
Except WT type
J919
D9706
E9001
D9705
POFFVP POFFVP
J922
+10VS
O
C A
+12VD
R932
82K MPUGND
POWERD POWERD
R933 C932
10K 100/16
!
T901
R9594
8
D925
!
9
RL901
10 R9592
C901
! 0.47 (1/2W)
103M
11
/275VAC
R9591
12
0.47 (1/2W)
13
14
15
16
17
18
19
TO NAAF-8523
".
T901
DESTINATION DESCRIPTION
DD, DC NPT-1518D
PP, PA NPT-1518P
GR, QG, GK NPT-1518G
WT NPT-1518DQ
F G
U17
POWER SUPPLY-2 PC BOARD
D9501-9503:
RL1N4003
C9003
D9001 D9002
1000/35
C9001
334J
MMT
C9004
470/35
D9003 D9004
J956
C9009
220/35
D9013 R9002 22
D9009 D9009,9013
R9003
RL1N4003
8.2K
GP104003E
Except C9014
470/63
WT type
J962
WT type only Q9021
RN2202
D9023
D9022 D9024
R9022
Q9022
10K
RN2202
C9021
1000/16
D9025
R922
R923
10K
1K
Q921
KTC3199-GR
2SC2458-GR
JL9501B
JL9501A
NAPS-8536
U18
FLAC1
C9591 SEC. TERMINAL-1
104J
PC BOARD
Refer to following table about
the parts displayed by mark " ".
R9594
DISTINATION DESCRIPTION
DD, DC, PA, WT 8.2 (1/2W)
GK, GR, GQ, PP 5.6 (1/2W)
F9501
DISTINATION DESCRIPTION
F9501
DD, DC 2.5A/125V
OTHER T2.5AL250V
NAETC-8524
U10
SEC. TERMINAL-2
PC BOARD
NC
JL6951B JL6952B
P997 P995 P996
NC
TO NAAF-8523
TX-SR603/603E/8360
H
+24V
S3GND
-24V
SEC2-1
SEC2-2
MPUGND
+12VD
+10VS
Q9002 KTA1268-GR
2SA970-GR
(1/2W)
R9004
8.2K
C9016
10/50
C9015
10/50
J955
D9012 NC
MTZJ36D
R9023
10K
Q9023
D9026
RN1202
MTZJ12C
DZ-12BSC
R9024
3.3K