Denon AVR-4802 Service Manual page 20

BU2090F (IC103)
CONTROL CIRCUIT
Vss 1
DATA 2
12-bit SHIFT RESISTER
CLOCK 3
12-bit STRAGE RESISTER
LCK 4
Q0 5
O U T P U T B U F F E R ( O P E N D R A I N )
Q1 6
Q2 7
Q3 8
Q4 9
TC9274N-017 (IC113)
2 1
4 2
1
41 40 39 38 37 36 35 34
18 bit Latch Circuit (Rch)
V
42
D D
(Lch) Same as Rch
V
1
S S
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
TC9459N (IC119, 302, 304, 306, 308)
N C 2
1 28
L - O U T
3
2 27
50k Ω /
91S TEP
N C
4
3 26
L - I N 5
4 25
L - L D 1 6
5 24
7
L - L D 2
6 23
L - A - G N D 8
7 22
N C 9
8 21
9 20
10
10 19
C S 1 11
11 18
N C 12
12 17
G N D 13
13 16
C K 14
14 15
TC9184AP (IC401, 403)
V s s 1 1 6
B A S S +
2 1 5
B A S S −
3 1 4
C O M 4 1 3
T R E B L E −
5 1 2
6
T R E B L E + 1 1
G N D
7 1 0
C K
8 9
NJM2229S (IC417)
18 V
DD
17 OE
16 Q11
15 Q10
1
14 Q9
13 Q8
12 Q7
11 Q6
10 Q5
26
33 32 31 30 29 28 27 25 24
V V
SS DD
28
1
VR
Same as L-ch
R-ch7 to 91decoder
L-ch7 to 91decoder
L-ch latch circuit R-ch latch circuit
Shift register (24Bit)
Level shift circuit
1 16
V
D D
BASS+ 2
B A S S +
B A S S −
C O M
T R E B L E −
BASS− 3
T R E B L E +
4
S T B COM
D A T A
TREBLE− 5
TREBLE+ 6
15
7
6
Sync Sepa
16
14
13
Sync Det
8
11 12 4
TC9274N-011 (IC114, 115)
2 1
4 2
1
41 40 39 38 37 36
23 S T B
22 D A T A
V 42
D D
21 C K
V
S S 1
20
G N D
2 3 4
5 6 7
PQ15RW11 (IC202)
27
N C
R - O U T
26
N C
25
24 R - I N
R - L D 1
23
4
3
22 R - L D 2
2
1
21 R - A - G N D
MC74HC4053N (IC415)
20 N C
Y 1
1
19 C S 2
Y 0
2
N C
18
Z 1 3
Z 4
17 N C
Z 0 5
16 S T B
6
E n a b l e
15 D A T A
V
7
E E
G N D
8
7 8 9
10
Level shift
Code
detect
circuit
AVR-4802/AVC-A11SR
9
10
Vsync Sepa
Phase 32fH
1/32
Det
VCO
3 2
1
35 34 33 32 31 30 29 28 27 26 25 24
18 bit Latch Circuit (Rch)
(Lch) Same as Rch
8 9 10 11 12 13 14 15 16 17 18 19
V i n
1 2
S p e c i f i c I C
4
3
G N D
Truth Table
Control Inputs
1 6
V c c
Select
1 5
Y
Enable C B A O N S w i t c h e s
X 1
1 4
L L L L Z0 Y0 X0
X
1 3
L L L H Z0 Y0 X1
1 2
X 0
L L H L Z0 Y1 X0
C
1 1
L L H H Z0 Y1 X1
A
1 0
L H L L Z1 Y0 X0
B
9
L H L H Z1 Y0 X1
L H H L Z1 Y1 X0
L H H H Z1 Y1 X1
H X X X
X = D o n ' t C a r e
BASS+
15
14 BASS−
COM
13
12 TREBLE−
11
TREBLE+
5
16
23 S T B
22
D A T A
21 C K
20
G N D
V o
V a d j
None
20