Technics SX-KN6500, Руководство по обслуживанию

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SCHEMATIC DIAGRAM-10
GND
1OE
2OE
3OE
4OE
1A1
VCC(3.3V)
1A2
1A3
1A4
IC109
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
4
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
1
40
25
24
10 15 21 28 34 39 45
7 18 31 42
T74LCX16244A
(16BIT BUS BUFFER)
0.1 C130
+3.3D
Z115
4.7KX8
+3.3D
f
e
d
c
b
a
Z
Y
X
W
V
U
T
S
R
Q
R133 4.7K
R135 4.7K
+3.3D
R138
R134 4.7K
1 2 3 4
E SW LED +3.3D
+3.3D
SELF
.LED
POR
T
.EXP
+3.3D
MIC
.SNS
R139 4.7K
MIDI.TX
MIDI.RX
Z114
4.7Kx4
Z113
47x4
Z111
47x4
ZC109
100Px4 ZC110
100Px4
IC110
LC32V4265T25
0
1
2
3
4
5
6
7
8
AD
0
1
2
3
4
5
6
7
8 I/O
VSS VSS
VCC VCC
9
10
11
12
13
14
15
17
27
26
25
24
21
20
19
18
41
42
43
40
38
37
36
35
10
9
8
7
5
4
3
2
44 39
VSS
23
22 6
VCC
1
NC
NC
13
14 NC
31
LCAS
30 UCAS
(4M BIT DYNAMIC RAM)
N M L K R Q P O
28
12
33
34
11 NC
NC
NC
NC
29
OE
15
WR
16
RAS
32 NC
0.1
C131
+3.3D
C
D
A
B
I
H
G
F
E
D
C
B
A
4.7K
R143
4.7Kx4
Z116
I
H
G
F
E
D
C
B
A
P
O
N
M
L
K
J
Z117
10Kx4
R144
4.7K
R145
4.7K
R146
4.7K
R147
10K
L
J
K
CN104
4.7K
Except (p) area.
(p) area only.