Onkyo HTR-550 Service Manual page 25

A
SCHEMATIC DIAGRAMS-8
POWER SUPPLY SECTION
NAPS-9150
1
U07
POWER SUPPLY PC BOARD
Refer to following table about the parts displayed
by mark "LIST".
TYPE T902
1520JQ
MDD, MDC
MPA 1520GQ
TYPE F901
MDD, MDC 8A 125V
MPA T4AL250V
2
!
TYPE AC IN
MDD, MDC 120V, 60Hz
MPA 230 - 240V, 50Hz
3
4
B
1SS133
D933
1SS133
D935
D930
1SS133
!
D931
1SS133
T902
LIST
D923
1 9
2 8 1SS133
3 7
4 6 D921
1SS133
5
D924
1SS133
D922
1SS133
D925
1SS133
C902
104J
3 2
!
RL901
4 1
!
C901
103M/275VAC
!
F903
J933
!
P902
NC
CAUTION
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
FOR CONTINUED PROTECTION
THAT THE FUSE USED IS SLOW OPERATING TYPE
AGAINST FIRE HAZARD, REPLACE
FOR CONTINUED PROTECTION AGAINST FIRE
ONLY WITH FUSE OF SAME TYPE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
A V AND RATING INDICATED.
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL.
ATTENTION
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
AFIN D'ASSURER UNE PROTECTION
E LENT.POUR UNE PROTECTION PERMANENTE,N'UTILISER
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
A V INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
C
MTZJ5.1B
D934
MPUGND
J931
Except WMO Type POWERD
NC
Q930
SI-3010KF
C922
LIST
R921
LIST
!
F901
LIST
1
2
P923A P924A P925A
<Note>
NC = No mount of parts.
SD-Z : XY
Location of connected terminal in schematic diagrams.
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
D
POFF 5
Refer to following table about the parts displayed by mark "LIST".
+12VD 4
3
TYPE R9101
+10VS 2
1
MDD, MDC 0.1(1/2W)
MPP 0.22(1/2W)
E901 E902
To NAVD-9178(2/2)
(SD-6 : A3)
JL9101A
NAPS-9151
!
T901
R9102
8
8.2(1/2W)
S4
9
10
S3
PRI
11
1
12
13
R9101
!
LIST
S2
3 14
F910
NC
U08
S1
TRANS. SEC. TERMINAL
PC BOARD
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 SIGNAL).
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 ( ) 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.
HT-R550
E
R921 C922 J931
56(1/2W) 2200/25 JUMPER WIRE
NC 2200/35 NC