Onkyo TX-SR505 Service Manual page 19

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 ".
MODEL & TYPE T901 T902
TX-SR505 MDD, MDC 1516D 1520JQ
MGK ,MGQ 1516G 1520GQ
MWT, MWO 1516DQ 1520JQ
TX-SR505E 1516P 1520GQ
MPP, MPB
2
MODEL & TYPE F901
TX-SR505 MDD, MDC 8A 125V
MGK ,MGQ
T4AL250V
MWT, MWO
T4AL250V
TX-SR505E MPP, MPB T4AL250V
!
P901
MODEL & TYPE AC IN
TX-SR505 MDD, MDC
120V, 60Hz
MGK ,MGQ 220-230V, 50Hz
MWT, MWO 120V/220V, 50/60Hz
TX-SR505E MPP, MPB
230V, 50Hz
3
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
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
D'INCENDIE, REMPLACER UNIQUEMENT
A V PAR UN FUSIBLE DE MEME TYPE INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
4
ET CALIBRATION COMME INDIQUE.
B C
1SS133
MTZJ5.1B
D933
1SS133 D934
D935
D930
1SS133
!
D931
1SS133
T902
LIST
D923
1 9
2 8 1SS133
3 7
4 6 D921 C922
1SS133
LIST
5
D924
1SS133
D922
1SS133
R921
LIST
D925
1SS133
C902
104J
3 2
!
!
RL901 F901
LIST
4 1
!
C901
103M/275VAC
!
F903
J933
P924A
P923A
!
P902
P924B
P923B
F902
!
T5AL250V
NC
VOLTAGE SELECTOR
220V
S902
!
4 1
5 2
6 3
120V
U10
SWITCH PC BOARD
NASW-9157
TX-SR505 MWT, MWO Type only
D
POFF 5
+12VD 4
MPUGND 3
J931
+10VS 2
LIST POWERD 1
TX-SR505
MWT, MWO Type only
Q930
SI-3010KF
E901 E902
T901
!
LIST
S4
S3
PRI
1
S2
1
2 3
S1
P925A
!
P925B
1
NOTE
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPECIFIED.
2
VOLTAGE (MEASURED WITH VOLTMETER)
1
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
2
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
3 3
4 ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
5 4 ELECTROLYTIC CAPACITORS (
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
5
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.
SD-Z : XY
Location of connected terminal in schematic diagrams.
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
TX-SR505/505E
E
Refer to following table about the parts displayed by mark " LIST ".
MODEL & TYPE R9101 R921 C922 J931
TX-SR505 MDD, MDC 0.1(1/2W) 56(1/2W) 2200/25 JUMPER WIRE
MWO, MWT 0.22(1/2W) NC 2200/35 NC
MGK, MGQ 0.22(1/2W) 56(1/2W) 2200/16 JUMPER WIRE
TXSR505E MPP, MPB 0.22(1/2W) 56(1/2W) 2200/16 JUMPER WIRE
To NAVD-9178(2/2)
(SD-6 : A3)
JL9101A
NAPS-9151
R9102
8
8.2(1/2W)
9
10
11
12
13
R9101
!
LIST
14
F910
NC
U08
TRANS. SEC. TERMINAL
PC BOARD
! ARE CRITICAL FOR SAFETY
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
PRINTING SIDE