Denon AVR-487 Service Manual

21
AVR-1707/1507/687/587/487
BA7626 (IC1004,1016,1019 : for AVR1707/687 model)
(IC652,653 : for AVR1507/487 model)
BA7625 (IC651 : for AVR1507/487 model)
74LVX157MTC (IC816) BA4510F (IC815A,816A) BU4094BCF (IC551,552)
MM74HCT244 (IC812) FAN1117-1.2 (IC824)
RC1117-33 (IC823)
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).
1A
1B
1Y
2A
2B
2Y
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Vcc
ST
4A
4B
4Y
3A
3B
3Y
SE
LECT
5
SEL
+
+
1
2
3
4
8
7
6
5
OUT1
– IN1
+ IN1
V
EE
VCC
OUT2
– IN2
+ IN2
1ch
2ch
–
–
2
SERIAL
IN
STROBE
Q
1
Q2
Q3
Q4
CLOCK
3
4
5
6
7
8
15
14
13
12
11
10
9
V
SS
1
OUTPUT
ENABLE
V
DD
Q6
Q7
Q8
Q'S
Q5
QS
16
1
2
3
2
ADJ/GND
OUT
IN
V
OUT
FRONT VIEW
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

Denon AVR-487 Specifications

General

Brand	Denon
Model	AVR-487
Category	Receiver
Language	English