Denon AVR-684

16
16
AVR-1604/684 / AVC-1580
MM74HCT244WMX (IC81
20 1
19 2
18 3
17 4
16 5
15 6
14 7
13 8
12 9
11 10
1G
2G
1A
0
2A
0
2A
3
2Y
0
1Y
0
1Y
3
1A
1
2Y
1
1A
2
2Y
2
1Y
1
2A
1
1Y
2
2A
2
1A
3
2Y
3
GND
V
CC
RC1117-2.5 (IC824)
RC1117-3.3 (IC823)
1
2
3
2
ADJ/GND
OUT
IN
V
OUT
FRONT VIEW
BA7625 (IC651)
BA7626 (IC652,653)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Monitor OUT
GND
IN5
GND
IN4
CTL E
IN3
CTL D
IN1
CTL A
V OUT1
Vcc
IN2
CTL B
V OUT2
CTL C
6dB
6dB
LOGIC
LOGIC
ABE
MONITOR OUT
C D E V OUT 1 C D E V OUT 2
LL* IN 1 LL*

LL* IN 1
H L * IN 2 H L * IN 2 H L *

L H * IN 3 L H * IN 3 L H * IN 3
H H L IN 4 H H L IN 4 H H L IN 4
HHH IN 5 HHH IN 5 HHH IN 5
Note 1: * mark means that feasible for either H or L.
Note 2: Each input terminal is provided with sink chip clamp (BA7625).
Each input terminal takes 20kohm at the end (BA7626).
1
45
8
2 3 4 5 6 7 8
1
IN
ABLC
C1
C2
GND
fo
N.C.
OUT Vcc
Detector &
Comparator
Integrator
TOP
VIEW
Head
Amp
Limiter
Amp
BPF
BEF
Hysteresis
Comparator
CXA1511M (IC701)
BD3812F (IC702)
㧗
㧙
14 OUT1
13 OUT2
12 SEL
DGND
MUTE
11
10
DA
V
CC
VEE
AGND
AGND
AGND
IN 1
9
CL
87
6
5
4
2
LOGIC
㧗
㧙
IN 2
3
1