Mitsubishi SD200U, Руководство по обслуживанию

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B-6
PCB-SIGNAL(4/4)
IC4A5 PCA9540DP
5
8
POWER-on
Reset
4
7
6
3
Input
Filter I C-Bus
Control
2
1
2
SC0
SC1
SD0
SD1
VSS
VDD
SCL
SDA
IC4A2 74VHCT541AMTC
1
2
3
4
5
6
7
8
12
13
16
17
18
OE1
I0
I1
I2
I3
I4
I5
I6
O6
O5
O4
O3
O2
O1
O0
9
I7
19
11
O7
15
14
10
GND
Vcc
20
OE2
Output
TRUTH TABLE
H
Z
Z
L
L
X
H
L
H
L
X
X
L
L
H
X
I
Inputs
OE1 OE2
H = High Voltage Level
L = Low Voltage Level
Z = Higt Impedance
X = Immaterial
PCB-TERMINAL
IC2F0 M52055FP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IN1B
SW1
OUT1
GND2
OUT2
OUT3
IN3A
IN1A
GND1
IN2B
Vcc
SW2
IN2A
GND3
IN3B
SW3
H L
H L
H
L
IC300 MC74VHC4052DTR2
X SWITCH
Y SWITCH
X
Y
13
3
COMMON
OUTPUTS/INPUTS
12
14
11
15
1
5
2
4
X
1
2
3
0
1
2
3
X
X
Y
Y
Y
Y
0
X
10
9
6
A
B
ENABLE
ANALOG
INPUTS/OUTPUTS
CHANNEL-SELECT
INPUTS
PIN 16 = Vcc
PIN 7 = V
PIN 8 = GND
EE
A
L L L Y0 X0
L L H Y1 X1
L L Y2 X2
L H Y3 X3
H X X
: Don't care X
ON Channels
Control Inputs
None
H
H
Select
Enable B
FUNCTION TABLE
IC330 TDA7496L
GND
1,2,3,13,
18,19,20
INR
9
VAROUT-R
7
VOLUME
Vs
15,16
OP AMP
MUTE/STBY
PROTECTIONS
60K
OP AMP
VAROUT-L
5
VOLUME
6
30K
30K
INL
4
VOLUME
SVR
10
14
11
12
17
OUTR
STBY
MUTE
OUTL
-
+
-
+