Onkyo TX-SR505 Service Manual page 51

IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-14
Q5501 : R2S15211FP (8 ch Electronic Volume and 11 Input Selector and Tone Control)-2/3
BLOCK DIAGRAM
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
DGND
41
DATA 42
CLOCK 43
AVEE
44
INR1
45
INL1
46
INR2
47
INL2 48
INR3 49
INL3 50
INR4 51
52
INL4
53
INR5
INL5 54
INR6 55
INL6 56
INR7 57
58
INL7
59
INR8
60
INL8
61
INRA/RECR1
62
INLA/RECL1
63
INR9
64
INL9
65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
REC
Bass / Treble
0~-95dB, -14~+14dB
+16~0dB
(1dBstep) (2dB step)
(1dBstep)
Tone
Tone
Bass / Treble
0~-95dB
+16~0dB
-14~+14dB
(1dBstep)
(2dB step)
(1dBstep)
+16~-95dB
(1dBstep)
+16~-95dB
(1dBstep)
+16~-95dB
(1dBstep)
+16~-95dB
(1dBstep)
+16~-95dB
(1dBstep)
+16~-95dB
(1dBst e p)
TX-SR505/505E
AVCC
24
AVCC
23
TREL
22
BASSL2
21
BASSL1
20
FRC
19
FROUT
18
AGND
17 FLOUT
16
FLC
15
6-C
6-OUT (SR OUT)
14
AGND
13
5-OUT (SL OUT)
12
5-C
11
10 4-C
4-OUT (SW OUT)
9
AGND
8
3-OUT (C OUT)
7
3-C
6
2-C
5
2-OUT (SBR OUT)
4
AGND
3
1-OUT (SBL OUT)
2
1-C
1