Power Supply Section - Onkyo TX-SR503 Service Manual

A
SCHEMATIC DIAGRAMS-6

POWER SUPPLY SECTION

1
MDD, MDC
!
F903
5A 125V
!
P902
AC OUTLET
120W MAX
1A MAX
MPP, MPA
!
F903
2
T2.5AL250V
!
P902
AC OUTLET
100W MAX
MGR, MGQ
!
F903
T2.5AL250V
!
P902
AC OUTLET
3
100W MAX
MGK
NAPS-8534
U12
OUTLET (GK)
PC BOARD
P926A
!
P902A
P925A
AC OUTLET
100W MAX
4
MWT
S902
VOLTAGE
SELECTOR
!
F903
T2.5AL250V
!
P902
AC OUTLET
100W MAX
5
B
NPT-1516D
!
!
P912
F901
8A/125V
NPT-1516P
! !
P912
F902
T4AL250V
NPT-1516G
!
!
P912
F902
T4AL250V
NPT-1516G
!
P912
!
!
F903
T2.5AL250V F902
T4AL250V
P926
P925
!
NPT-1516DQ
P912
!
!
F902
T4AL250V
220V
F901
T4AL250V
!
120V
DESTINATION
MDD, MDC
MPP, MPA
MGR, MGQ, MGK
MWT
!
T901
!
Refer to following table about the parts displayed by mark "
T901
CIRCUIT NO.
DESTINATION
MDD, MDC NPT-1520JQ
MPP, MPA NPT-1519GQ
MGR, MGQ, MGK NPT-1519GQ
MWT NPT-1519JQ
!
T901
!
T901
!
T901
!
P901A
P901
AC-H
AC-G
AC IN
AC IN
120V, 60Hz
230-240V, 50Hz
220-230V, 50Hz/ 60Hz
120V/ 220-230V, 50/ 60Hz
TX-SR503/503E/8350
C
NOTE
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPE
VOLTAGE (MEASURED WITH VOLTMETER
ALL PNP TRANSISTORS ARE EQUIVALEN
ALL NPN TRANSISTORS ARE EQUIVALEN
ALL DIODES ARE EQUIVALENT TO 1SS13
ELECTROLYTIC CAPACITORS (
".
ALL CAPACITORS ARE IN pF/50WV UNLES
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.0
ALL RESISTORS ARE IN OHMS 1/4WATTS
T902 C922
THE THICK LINES ON PC BOARD ARE THE
2200/25
EX)
2200/16 CIRCUIT IS SUBJECT TO CHANGE FOR IM
2200/16
<Note>
2200/35
NC=No mount of parts.
U11
POWER SUPPLY-1 PC BOARD
D935
R934
D934
D933
100K
D930
C930
C933
D931
4.7/50
100/35
D932
C921
R930
223Z
100K
I
R931
100K
!
T902
!
Refer to left diagrams
for each destination.
D
) AR
PRINTING SIDE
NAP
Except MWT
J919
MWT Only
Q930
SI-3010KF
J922
O
G C A
R932
82K
C932
R933
C931
100/16
10K
10/50
D925
!
RL901
!
C901
103M /275VAC