Front View - Denon AVR-786 Service Manual

BA7625 (IC651)
BA7626 (IC612,613,616,652,653)
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).
LC74781 (IC603)
BD3812F (IC702)
1
IN 1
2
AGND
3
IN 2
4
AGND
V
5
EE
6
AGND
V 7
CC
Monitor OUT
1
GND 2
IN5 3
GND
4
5
IN4
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 (IC815A,816A)
OUT1 1
Ð IN1 2
+ IN1 3
V 4
EE
MM74HCT244 (IC812)
14 OUT1
1G
1A
13 OUT2
2Y
1A
12 SEL
2Y
1A
11
DGND
2Y
MUTE
10 1A
2Y
DA
9
LOGIC
GND
CL
8
16 IN1
CTL A
15
6dB
14 V OUT1
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
1 20
V
CC
2 19
0 2G
0
0 3 18 1Y
1 4 17 0
2A
5 16 1
1 1Y
1
2 6 15
2A
2 2
7 14
1Y
2
3 8 13
2A
3 3
9 12
1Y
10 11
3
2A
20
AVR-1906 / AVR-786 / AVC-1620
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
BU4090BC (IC551-553)
1 16
STROBE
SERIAL
2 15
IN
CLOCK 3 14
4 13
Q
1
5 12
Q
2
6 11
Q
3
Q 7 10
4
8 9
V
SS
FAN1117-1.2 (IC824)
RC1117-3.3 (IC823)

FRONT VIEW

3 IN
V 2 2 OUT
OUT
1 ADJ/GND
V
DD
OUTPUT
ENABLE
Q
5
Q
6
Q
7
Q
8
Q'
S
Q
S