Table Of Contents - Onkyo TX-SR403 Service Manual

A B
SCHEMATIC DIAGRAMS-6
POWER SUPPLY SECTION
1
NOTE
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
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)
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
<Note>
NC=No mount of parts.
2
U11
POWER SUPPLY-1 PC BOARD
D930
D931
3
D932
C921
223Z
4
!
!
P901A
P901
AC-H
AC IN
AC-G
220-230V, 50/60Hz
5
C
!
ARE CRITICAL FOR SAFETY
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
PRINTING SIDE
NAPS-8544
D935
R934
D933 D934
100K
C930
C933
J919
100/35
4.7/50
E9001
R930 Q930
NC NC POFFVP POFFVP
J922
+10VS
I O
G C A
+12VD
NC
R932
MPUGND
NC
POWERD POWERD
R933 C932
R931 C931
NC NC NC NC
! D925
T902
!
NPT-1519GQ
RL901
!
C901
103M / 275VAC
!
F903
!
T2.5AL250V !
P912
F902
!
T3.15AL 250V
P902
AC OUTLET
100W MAX
D E
NAPS-8546
U13
POWER SUPPLY-2 PC BOARD
C9001
334J
MMT
D9013
C9009
220/35
D9009
J962
Q9021
NC
C9708 D9022
NC
222J
R9022
NC
D9706
C9021
NC
D9705
R922 R923
10K
1K
Q921
KTC3199-GR
2SC2458-GR, BL
JL9501B
!
T901
NPT-1514G
JL9501A
NAPS-8547
8
FLAC1
R9594 C9591
8.2 (1/2W) 104J U14
9
10 R9592
SEC. TERMINAL-1
0.47 (1/2W)
PC BOARD
11
R9591
12 0.47 (1/2W)
13
R9593
0.22 (1/2W)
14
F9501 NC
15
16
17
18
19
JL6951B
P997 P995 P996
TO NAAF-8523 TO NAAF-8523
NC
F G
D9001 - 9004 : RL1N4003
C9003
D9001 D9002
1000/35
+24V
S3GND
C9004
470/35
D9003 D9004
-24V
J956
SEC2-1
SEC2-2
MPUGND
+12VD
+10VS
Q9002 KTA1268,
R9002 22
2SA1970-R
(1/2W)
D9009,9013 :
R9004
R9003
RL1N4003,
8.2K
8.2K C9016
GP104003E
10/50
C9015
C9014
10/50
470/63
J955
D9012 NC
MTZJ36D
R9023
NC
D9023 NC
D9024 NC
Q9023
D9026
NC
Q9022 NC
NC
R9024
D9025 NC
NC
NAETC-8524
U06
SEC. TERMINAL-2
PC BOARD
JL6952B
TX-SR403/8340
H