Denon AVC-A11XV, Service Manual

Page: 47 / 172

47
AVR-4806 / AVC-A11XV
TC94A46FG (IC109) AUDIO P.W.B.
TC94A32F (IC301,303,305,307) AUDIO P.W.B.
S05
S06
NC
NC
S07
NC
S08
NC
S09
NC
S10
NC
S11
NC
S12
NC
S13
NC
S14
NC
NC
COM1
NC
COM2
S05
S06
NC
NC
S07
NC
S08
NC
S09
NC
S10
NC
S11
NC
S12
NC
S13
NC
S14
NC
NC
COM 1
NC
COM 2
L A T C H L A T C H L A T C H L A T C H L A T C H L A T C H L A T C H L A T C H
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
LATCH
L e v e l s h i f t c i r c u i t
T i m i n g
g e n e r a t i n g
c i r c u i t
16
bit
shift
register
circuit
S0
4
NC S0
3
NC S0
2
NC S0
1
NC NC S0
1
NC S0
2
NC S0
3
NC S0
4
NC
CO
M3
NC
VS
S
NC
CS
1
GN
D
CK
DA
TA
ST
B
CS
2
NC
VD
D
NC
CO
M3
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
L/R-TVR-REF
20kohm
L/R-TVR-IN
L/R-TVR-OUT
L/R-MVR-OUT
50kohm
20kohm
L/R-MVR-AGND
L/R-MVR-IN
2 8
2 7 2
1 6 1 3
1 7 1 2
1 8 1 1
1 9 1 0
2 0 9
2 1 8
2 2 7
2 3 6
2 4 5
2 5 4
2 6
V D D
Tr i m V R
0 ~ + 2 4 d B /
1 d B s t e p Tr i m V R
0 ~ + 2 4 d B /
1 d B s t e p
M a i n V R
0 ~ - 9 5 d B /
0 . 5 d B s t e p M a i n V R
0 ~ - 9 5 d B /
0 . 5 d B s t e p
DATA
S T B
C S 2
N C
M V R - I N
N C
M V R - A - G N D
M V R - O U T
T V R - O U T
T V R - I N
T V R - R E F 3
V S S
C K
G N D
C S 1
N C
M V R - I N
N C
M V R - A - G N D
M V R - O U T
T V R - O U T
T V R - I N
T V R - R E F
1
N C N C
1 5 1 4
N C N C
Function
Pin
No.
Pin Name
2 VSS
27 VDD
12 GND
3 L-TVR-REF Trim volume circuit
26 R-TVR-REF
4 L-TVR-IN
25 R-TVR-IN
5 L-TVR-OUT
24 R-TVR-OUT
6 L-MVR-OUT Main volume circuit
23 R-MVR-OUT
7 L-MVR-AGND
22 R-MVR-AGND
9 L-MVR-IN
20 R-MVR-IN
Chip select code switching input
11 CS1
18 CS2
13 CK Clock input pin for data transfer
16 DATA A-SW control data input pin
17 STB Strobe input pin for data writing
1, 28,
8, 21,
NC
10,19,
14,15
CS1 CS2
L L 0 0 0 1
H L 1 0 0 1
L H 0 1 0 1
H H 1 1 0 1
Chip select code
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