Power Supply Pc Board - Onkyo DR-S2.2 Service Manual

A
SCHEMATIC DIAGRAMS-5
POWER SUPPLY SECTION
1
NAPS-7437
U11

POWER SUPPLY PC BOARD

2
3
+13V
DVDPOWER
+5.6V
MICOMGND
DSPGND
+5VDSP
GND
4
SW+5VIN
SW+5VGND
MGND
M+6V
SW3.3V
DVDGND
5
SW2.5V
B
D9923
R9929
27
1N4003
(1W)
NAETC-7445
Q9921
78M56
115MA
O G I
NAETC-7448
78M05 Q9926
310MA
O G I
NAETC-7446
0.5-1.1A
120MA
O G I
78M06 Q9925
R9927
2.2
(1/2W)
NAETC-7444
Q9951
PQ3RD23
Q9952
4
MPC2925T
820-970MA
O G I
NAETC-7447
AC1
D9921
RBV402
+
R9921
2.2
D9922
(1/2W)
+10V
R9928
+11.0
2.2
(1/2W)
0.22 (1/2W)
R9926
Q9923
2SA965
D9951
RBV402
3 2 1
AC1
+7.4
+
Page 37
C
F9921
*
R9951
0.22
(1/2W)
DR-S2.2
D
NAPS-7429
13
GND
+10V
POWER
C9994
Q9991
223Z
DTC123J
E9992
RE
SEC1A
GND BL
SEC1B
RE
R
SEC2A
B
GND
SEC2B
R
SEC3A
B
SEC3B
B
Y
SEC4A
SEC4B
Y
G
SEC5A
SEC5B
GR
NOT
.
THE CO
REPLA
. VOLTA
. ELECT
. ALL CA
EX) 030
.
ALL RE
. THE TH
EX)
.
CIRCUI