Denon AVR-1404, Service Manual

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15
15 AVR-1404/484
1
2
3
4
5
6
7
8
18
17
16
15
14
13
12
11 Q3
VDD
OE
Q7
Q8
Q11
Q10
Q9
Q6
VSS
DATA
CLOCK
LCK
Q0
Q1
Q2
9 10 Q4
Q5
CONTROL CIRCUIT
12-bit SHIFT RESISTER
12-bit STRAGE RESISTER
OUTPUT BUFFER (OPEN DRAIN)
BU2090F (IC302)
1
MM74LCX244 (IC818,819)
RC1117S25T (IC820)
RC1117S33ST (IC811)
2
3
2
ADJ/GND
OUT
IN
MM74HC151 (IC832)
V
OUT
FRONT VIEW
LA1266 (IC402)
10
4
1 3
8
19
15
17
18
14
21
22
G N D
V c c
5 11
I F
B U F F E R
I F
B U F F E R
2
F M - I F
6
Q . D .
7
R E G
23
O S C
O S C
B U F F E R
24
N A R R O W
S - M E T E R
S - M E T E R
16
L E D
D R I V E R
R F M I X
12
20
A M - I F D E T
A G C
P O S T
A M P
9
13
A M - I F F M - I F F M - I N
A M - I N
20
19 18
17 16 15
14
13 12
9 8
7
5 6 1
21
LA3401 (IC403)
22
V O L
R E G
O S C
S Y M M E T R I C A L
R E O C T A N C E
C I R C U I T
P H A S E
C O M P A R A T O R
V C O S T O P
P I L O T D E T
F F F F
F F
3 8 k H z
F F
3 8 k H z 9 0 °
F F
1 9 k H z 9 0 °
M U T I N G
F M A M C H A N G E
R o
R c
R c
R b
2 3 4
D E C O D E R
M U T I N G C O N T R O L
F M A M C H A N G E O V E R
V c c O N
M U T I N G
M U T I N G
O U T P U T
S T E R E O
S W I T C H
T R I G G E R
L A M P
D R I V E R
R b
10
11
LC72131 (IC401)
1 2 0
2 1 9
3 1 8
4 1 7
5
1 6
6 1 5
7
1 4
8 1 3
9 1 2
1 0 1 1
X I N
C E
D I
C L
D O
B O 1
B O 2
B O 3
B O 4
I O 1
A O U T
A I N
P D
V D D
F M I N
A M I N
I O 2
I F I N
V s s
X O U T
TDA7330BD (IC202)
TOP VIEW
POR MUXIN
TM V
REF
FSEL COMP
T2 FILOUT
V
CC
GND
ARI T1
QUAL
T3
RDDA T4
RDCL OSCOUT
T57 OSCIN
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1 24
12 13
1
2
3
4
5
6
7
8
20
19
18
16
15
14
13
I3
VCC
OE2
O2
I5
O0
I4
O1
I6
OE
I0
O4
I1
O5
I2
O6
9 12
O7 O3
10 11
GND I7
TOP VIEW
D4
D5
D6
D7
A
B
D2
D1
D0
Y
W
S
D3
C
4
5
6
7
A
B
C
Vcc
15
14
13
12
11
10
9
16
2
3
4
5
6
7
8
1
2
1
0
Y
W
STROBE
GND
3
DATA
INPUTS
OUTPUTS
DATA
INPUTS
DATA
SELECT
TOP VIEW
17