Onkyo HT-R570 Service Manual page 8

A
BLOCK DIAGRAMS-2_2 (PART-2_2)
POWER SUPPLY SECTION
POWER SUPPLY SECTION
1
PS Board
SUB TRANS
2
1
MAIN TRANS
18
S4
2
17
FLAC
16
S3
-VP
14
11
S2
DIGITAL
13
3
10
9
8
S1
7
4
6
POWER AMP
B
VFD
DRIVER
VFD
O
I
+3.3V
VIDEO Board
I O
+5V
S1H+
S1L+
+B
S1L- Power Amp
-B
S1H-
C
+3.3V
50mA
I O
300mA
+5V
100mA
I O
200mA
+3.3V
I
+3.3V
DC-DC +4V 500mA
I O
+1.8V
500mA
I O
+3.3V
+4V 250mA
DC-DC I O
+1.2V
500mA
I O
MPU Board
ZENNER +9V 110mA
TR
+15V
ZENNER +7V
I O
TR
ASP
-15V
ZENNER -7V
I O
TR
ASP&AMP Board
D
MPU Board
MPU
M.PORT
ANALOG VIDEO VIDEO Board
CODEC
O
HDMI Board
HDMI
DSP
SDRAM
FROM
TUNER
OPAMP
HT-R570
E