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A
B
SCHEMATIC DIAGRAM
1
2
3
4.9
0
0
0
0
4.9
0.1
4
0
0
4.9
0
0
0
4.9
2.2
0
0
5
0
4.9
0
0
4.9
4.9
DIR
0
6
7
8
C
D
E
P-E49/J47
[A-4]
0.1
4.9
0
0
4.9
4.9
e
4.9
0
4.9
4.9
0
2.4
0
2.3
0
0
2.4
2.4
Point e
(Pin 13 of IC703)
V : 2V/div
H : 50 nsec/div
DC range
1 : 1 probe
0V
F
G
DIT
DEQ
2.4
H
I
J
IC701 : NJM2904M-T1
IC706 : TC74VHC04F
Dual OP-Amp
Hex Inverters
OUT
1
1
8
+V
CC
–IN
1
2
7
OUT
2
+
–
+
–
+IN
3
6
–IN
1
2
–V
4
5
+IN
CC
2
V
4.9
2.6
3.2
3.2
0
2.6
0
2.6
0
2.6
0
2.6
0
2.6
2.6
0
0
* All voltages are measured with a 10MΩ/DC electric volt meter.
* Components having special characteristics are marked Z and must be
replaced with parts having specifications equal to those originally installed.
* Schematic diagram is subject to change without notice.
K
NDX-595
IC702 : HD74HC02FPEL
Quad 2 Input NOR
1A
1
14
V
DD
14
13
12
11
10
9
8
1Y
2
13
6A
2A
3
12
6Y
2Y
4
11
5A
3A
5
10
5Y
3Y
6
9
4A
1
2
3
4
5
6
7
SS
7
8
4Y
E-50/J-48
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