Onkyo TX-DS494 Service Manual page 18

E
TO NADIS-7043
10
20
12V
-12V
GND
78M05
5V
Q934
R941
O G I
18
(1/2W)
Q3151 TC9164
F
TO NAAF-7050
P7001B
P306A
U19
REGULATOR
CIRCUIT
PC BOARD
-VP NAPS-7055
TO NAAF-7050
P304A
24V
GND
+12V
GND
-12V
29.3V
D933-D936,D940,D941
RL1N4003
or GP104003E
or 1SR139-100
D940
RL1N4003
Q931
78M56
R932
O G I
2.2
(1/2W)
TOLI
LSOUT
COUT
FSWSLT
R3501
3
330
2
R3401
FSWSCK 330
FSWSDO
TORI
AMSWI
RSOUT
G
Q921
79M12 Q922
I O O G I
G
C926
10/16 R929
R926
33 (1W)
5.6 (1W)
JL921B
JL921A
23.5V
R935 R940
3.9K 3.9K
D938
R934
Q932
22 -48.4V RL1N4003
2SA1015 (1/2W)
R933
1
(1/2W)
FAC2
FAC1
POFF
+12.5V
D934
D933
D941
RL1N4003
D935 D936
RL1N4003*4
NJM4565M-D
8
C3308
10/16
1
Q3501
R3301
3
330
R3503
Q3301
2
2.2K
C3504
101J
C3307
NJM4565M-D
10/16
5 8
7
Q3301
6
5
R3403
Q3501
2.2K
6
C3404
101J
NJM4565M-D
TX-DS494/HT-R490
78M12 Q933
78M05
O G I
C925 C942
C940
104Z
104Z 10/16
JL931B
TO NAAR-7044
R922
D901
RS403M
0.22
AC1 (1/2W)
+
R921
0.22
(1/2W)
24.2V
D937,D938
RL1N4003
or GP104003E
or 1SR139-100
JL961A
POWER
+13V
JL931A
GND
P706A
+5VDSP
GND
P707A
+12V
-12V
+5VDSP
JL912A
R923 R925
0.22 (1/2W)
0.22 (1/2W)
R924
0.22 (1/2W)
E301
24V
TORO
TOLO
GND
TOLI
TOLO
TORI
TORO
TOCI
4
NJM4565M-D
1
AMLSI
AMRSI
R3303
2.2K
AMSWI
C3304
101J
+12V
-12V
4
7