Onkyo HT-R508 Service Manual page 7

A B
BLOCK DIAGRAMS-1
AUDIO SECTION
TUNER UNIT
1
MIC AMP
SETUP MIC
(FRONT)
MIC DETECT
L
AUX INPUT
(FRONT)
R
L
CD
R
2
L
TAPE OUT
R
L
TAPE IN
R
L
CBL/SAT IN
R
3
L
VCR/DVR OUT
R
L
VCR/DVR IN
R
L
FRONT
R
CENTER
DVD (MULTI IN)
SUBWOOFER
L
SURROUND
R
4
IN1
HDMI IN2 HDMI
SW
OUT
1
COAXIAL
5
2
DIGITAL IN
1
OPTICAL
2
C
40
L 59
R 60
L
37
R
36
61
62
55
56
53
54
49
50
47
48
45
46
71
72
67
68
MICRO
CONTROLLER
14
13
15 2ch ADC
-
16
-
Q341
DIR
D E
Q5501
R2S15211FP
SELECTOR / VOLUME
TONE
TONE
Q5503
FL 73
INVERTING
FR 74
INVERTING
75
C 30
77
SL 33
78
SR 32
76
31
SW
8ch DAC
Q301
CS42518
F G
POWER AMPLIFIER
19
FL
+29dB
17 FR
+29dB
MUTING
7 C
+29dB
SL +29dB
14
Q5630
SW
+29dB
SR
12
9
Q282 Q281
ES29LV400 M12L16161A
4M Bit 16M bit
SD_RAM
FLASH MEMORY
Q201
D707E001BRFP250
DSP
HT-R508
H
PHONES
L
RELAY
FRONT SPEAKERS
R
CENTER SPEAKER
RELAY
L
SURROUND SPEAKERS
R
PREOUT
SUBWOOFER
RI
RI
INTERFACE
Q701
M30624MHP
MICROPROCESSOR