Denon AVR-2105 Service Manual page 21

QQ
3 7 63 1515 0
BU4052BCF
(IC601D,602D)
Y V
0 1 16
Y
0
Y 2 15 X
2 Y X
2 2
YOUT
COMMON Y 14 X
3 X
1
/IN
XOUT
Y 13 COMMON X
3 4 Y3
/IN
Y 5 X
1 Y X 12
1 0
INH 6 11 X
INH X
3
7
V 10 A
EE V A
EE
B
8 9
Vss B
MM74HC4053MX (IC1001, 1004, 1008)
Y1
1 16
Y0
2 15
Z1 3 14
4 13
Z
12
Z0 5
Enable 6
11
V 7 10
EE
GND
8 9
BA7626 (IC1000, 1002, 1150-1153)
TE
L 13942296513
Monitor OUT
GND
6dB
IN5
LOGIC
GND
IN4
6dB
CTL E
IN3
7 LOGIC
CTL D 8
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).
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Truth Table
INH A B
DD
L L L
2
L H L
1
L L H
L H H
H X X
0
3
X = Don't Care
Truth Table
Control Inputs
Vcc
Select
Y
Enable C B A
ONSwitches
X1
L L L L Z0 Y0 X0
X
L L L H Z0 Y0 X1
X0
L L H L Z0 Y1 X0
C
L L H H Z0 Y1 X1
A
L H L L Z1 Y0 X0
B L H L H Z1 Y0 X1
L H H L Z1 Y1 X0
L H H H Z1 Y1 X1
H X X X None
X = Don't Care
A B E
16 IN1
L L *
CTL A
15
H L *
L H *
14 V OUT1
H H L
13 Vcc
H H H
12 IN2
C D E
CTL B
11
L L *
10 V OUT2
H L *
9 CTL C
L H *
H H L
H H H
C D E
L L *
H L *
L H *
H H L
H H H
x ao
y
i
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8
ON Switches
X Y
0 0
X Y
1 1
X Y
2 2
X Y
3 3
NONE
Q Q
3 6 7 1 3
MONITOR OUT
IN 1
IN 2
IN 3
IN 4
IN 5
V OUT 1
IN 2
IN 3
IN 4
IN 5
V OUT 2
IN 1
IN 3
IN 4
IN 5
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21
AVR-2105/885 / AVC-1890
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
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9 9
2 8 9 9