Onkyo TX-SR674, Service Manual

Page: 91 / 127

TX-SR674/674E/8467
IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -28
Q5501 : R2S15211FP (8 ch Electronic Volume and 11 Input Selector and Tone Control)
BLOCK DIAGRAM AND PIN CONFIGURATION
AGND
5-C
AGND
3-C
AGND
1-C
CLOCK
AVCC
IN
LB/RECL2
INRB/REC
R
2
INR11/RECR5
IN
L10/RECL4
REC
R
3
IN
L11/RECL5
FLIN1
RECL3
CIN1
FR
IN
1
SLIN1
SW
IN1
ADCL ADCR FLIN2 FR
IN
2
SLIN2 SR
IN
2
CIN2 SW
IN2
S
BLIN2
S
BRIN2
BAS
S
R2
TRER BAS
S
R1
TREL
BASSL1
BASSL2
FLOUT
6-C
FLC
FROUT
AGND
FRC
DATA
SB
L
IN
1
SR
IN
1
S
BRIN1
1-OUT (SBL OUT)
DGND
2-OUT (SBR OUT)
3-OUT (C OUT)
2-C
4-OUT (SW OUT)
5-OUT (SL OUT)
4-C
6-OUT (SR OUT)
INL5
INL1
INR1
INL2
INR2
INL3
INR3
INL4
INR4
INR5
INL6
INR6
INL7
INR7
INL8
INR8
INLA/RECL1
INRA/RECR1
INL9
INR9
AVEE
SUB
R
SUBL MON
O
INR10/RECR4
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
64
63
62
61
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
AVCC
MCU
I/F
MAIN
SUB
REC
ATT
0/-6
/-12
/-18dB
Bass/ Treble
-14~+14dB
(2dB step)
+16~-95dB,
- (1dBstep)
+16~-95dB,
- (1dBstep)
+16~-95dB,
- (1dBstep)
+16~-95dB,
- (1dBstep)
+16~-95dB,
- (1dBstep)
+16~-95dB,
- (1dBstep)
Tone
+16~0dB
(1dBstep)
Tone
Bass/ Treble
-14~+14dB
(2dB step)
0~-95dB,
-
(1dBstep)
+16~0dB
(1dBstep)
0~-95dB,
-
(1dBstep)