Block Diagram - Onkyo HT-R8230 Service Manual

A

BLOCK DIAGRAM

1
2
L
CD
1
R
72
L
TAPE OUT
71
R
4
L
TAPE IN
3
R
6
L
VIDEO 3
5
R
8
L
VIDEO 2 IN
2
7
R
76
L
VIDEO 1 OUT
75
R
10
L
VIDEO 1 IN
9
R
12
L
FRONT
11
R
14
L
SURROUND
DVD 13
R
16
3
CENTER
15
SUB WOOFER
COAXIAL
DIGITAL IN
OPTICAL
Q281
74HCU04
4
VIDEO
VIDEO3 IN
VIDEO2 IN
VIDEO1 IN
DVD IN
VIDEO SELECTOR
RI
RI
INTERFACE
5
B
78
TUNER UNIT
77
Q301 BD3811K
SELECTOR/TONE CONTROL
/VOLUME
2CH A/D
96/24
Q701
DIR
CS493264
OSC DSP
12.288MHZ
Q203
LA7956
MUTE
VIDEO
Q202
Q201
C
MAIN MICROPROCESSOR
18
NC
20
NC
Q804
L
50KLPF
R
50KLPF
Q801
AK4586
Q803
SL
50KLPF
96/24
SR
6CH D/A
50KLPF
Q802
C
50KLPF
SW
50KLPF
MONITOR OUT
VIDEO 1 OUT
U7501
REMOTE SENSOR
HT-R8230
D
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
INPUT GAIN
0/6dB
Q302(1/2)
POWER SUPPLY
+7V
Q321
78L07
10.5dB
-7V
Q322
Q302(2/2)
79L07
+2.5V
Q7004
DSP
+3.3V
BA33C25
12.5MHZ
MAIN
MICROPROCESSOR
Q7008
MPD784225GC-249-8BT
BACK
UP
5MHZ
Q7501
SUB
MICROPROCESSOR
Q7502
MPD780232GC-030-8BT
OPERATION
STANDBY
D7507
69
66
43
40
30
33
16B
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