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K
SERVO CIRCUIT WAVEFORMS
J
TEST POINT
WAVEFORM
LOCATION
IC301
I
PIN 9,10
REC
2V/div.
20µs/div.
H
IC301
PIN 85
G
REC
2V/div.
10ms/div.
F
IC301
PIN 93
REC
E
2V/div.
200µs/div.
D
IC301
PIN 96
REC
100mV/div.
C
10ms/div.
B
A
1
2
3
4
TEST POINT
WAVEFORM
LOCATION
IC301
PIN 98, 99
REC
2V/div.
500ms/div.
IC304
UP : PIN 23
LOW :PIN 18
REC
5V/div.
500µs/div.
IC301
PIN 89
PB
1V/div.
10ms/div.
WF-S-EC4Q
5
6
7
8
DISPLAY (FLD) GRID/ANODE ASSIGNMENT DRAWING & TABLE
9G
8G 7G 6G 5G 4G 3G 2G
m
m
9
10
11
12
C14
col2
a
n
f
m
n
g
m
e
m
c
m
d
9G
8G
7G
6G
5G
4G
3G
2G
a
b
n
-
n
n
-
-
n
c
a
a
a
a
a
a
a
d
b
b
b
b
b
b
b
e
c
c
c
c
c
c
c
f
d
d
d
d
d
d
d
d
g
e
e
e
e
e
e
e
e
h
f
f
f
f
f
f
f
f
i
g
g
g
g
g
g
g
j
m
m
m
m
m
m
m
col2
col1
k
-
-
-
-
-
l
13
14
15
16
K
J
1G
col1
I
H
b
n
G
m
1G
F
-
n
a
a
E
b
b
c
c
d
d
e
e
D
f
f
g
g
m
m
C
-
GR-04100
B
A
17
18
19
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