Denon AVR-1708 Service Manual page 55

BA7626 (IC1001,1005,1006 : for AVR1707/687 model)
(IC652,653 : for AVR1507/487 model)
BA7625 (IC651 : for AVR1507/487 model)
A B
L L
H L
L H
H H
H H
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).
74LVX157MTC (IC816)
SE LECT
1
SEL
1A 2
3
1B
1Y 4
2A 5 5
2B
6
7
2Y
8
GND
MM74HCT244 (IC812)
1 20
1G
2 19
0
1A
0 3 18
2Y
1 4 17
1A
5 16
1
2Y
2 6 15
1A
2 7 14
2Y
3 8 13
1A
3
9 12
2Y
10 11
GND
Monitor OUT
1
GND 2
IN5 3
GND 4
IN4 5
CTL E
6
IN3
7
CTL D
8
MONITOR OUT
E C
* IN 1 L
* IN 2 H
* IN 3 L
L IN 4 H
H IN 5 H
BA4510F (IC824,827)
16
Vcc
OUT1 1
15
ST
14
4A
Ð IN1 2
13
4B
12
4Y
+ IN1 3
11 3A
10
3B
V 4
EE
9
3Y
FAN1117-1.2 (IC824)
RC1117-33 (IC823)
V
CC
2G
0
1Y
0
2A
V
OUT
1
1Y
1
2A
2
1Y
2
2A
3
1Y
3
2A
AVR-1708/1508/688/588/488 AVC-1508
16 IN1
CTL A
15
6dB
V OUT1
14
LOGIC
13 Vcc
12
IN2
6dB
11 CTL B
LOGIC 10 V OUT2
9 CTL C
D E V OUT 1
L *
L * IN 2
H * IN 3
H L IN 4
H H IN 5
8 V
CC
7 OUT2
1ch
+
Ð
2ch
6 Ð IN2
+ Ð
5 + IN2
FRONT VIEW
3 IN
2 2 OUT
1 ADJ/GND
55
C D E V OUT 2
L L * IN 1
H L *
L H * IN 3
H H L IN 4
H H H IN 5
BU4094BCF (IC12,110,111)
STROBE 1
SERIAL
2
IN
CLOCK 3
4
Q
1
5
Q
2
6
Q
3
7
Q
4
8
V
SS
16 V
DD
OUTPUT
15
ENABLE
14 Q
5
13
Q
6
12
Q
7
11
Q
8
10
Q'
S
9 Q
S