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Maintenance
and
Calibration
—
Type
114
g.
Ad|ust
C195F
(see
Fig.
4-16)
for 100
nanoseconds
pulse
width.
Allowable
error
is
±
3%,
however,
it
is
possible
to
adjust
more
closely
than
this.
Fig.
4-15.
Crt display for proper setting of 100 nS Pulse Width
capacitor C195F.
14.
Check
operation
in square-wave mode
a.
Set
the
Type 114
WIDTH
control
to
SQUARE
WAVE.
b. Using
Table
4-4
check
square
wave
operation for
all
positions
of
the
PERIOD
control. Allowable
period
error
is
4
mm within
the
center
8
cm
of
the
trace
TABLE
4-4
Type
114
PERIOD
Type
547
TIME/CM
(B)
Cycles/8
cm
10
mS
10
mSEC
8
1
mS
1 mSEC
8
100
µ
S
.1 mSEC
8
10
µ
S
10 µSEC
8
1
µ
S
1
µ
SEC
8
12.
Check pulse width
accuracy
Using
the
settings
given
in
Table
4-3,
check
the
pulse
width
accuracy in
the
other
settings
of
the
WIDTH
control.
TABLE
4-3
Type
114
PERIOD
Type
114
WIDTH
Type
547
TIME/CM
Type
180A
Time
Markers
Number
of
Markers
1
mS
1
mS
.2
mSEC
100
µ
sec
10
1
mS
100
µ
S
20
µ
SEC
10
µsec
10
100
µ
S
10
µS
2
µ
SEC
1
µsec
10
10
µ
S
1
µS
.2
µ
SEC
10
m
c
10
cycles
13.
Check WIDTH
— VARIABLE control range
a.
Set
the Type 114
WIDTH
control
to
100^5,
set
the
PE
RIOD
control
to
10
mS
and
the
PERIOD
—
VARIABLE
control
to
CAL.
b.
Set
the
Type
180A
for
100 microsecond markers.
c.
Set
the
Type
1A1 Channel 1
VOLTS/CM
switch
to
5.
d.
Set
the
Type 547
TIME/CM
(B)
to
.2
mSEC,
the
TRIG
GERING
SLOPE
switch
to
+,
and
adjust the
TRIGGERING
LEVEL
control
for
a
stable
display.
e.
Slowly
rotate
the
WIDTH
—
VARIABLE control
clock
wise.
Check
for
a
pulse
width
of
at
least
1
millisecond
(ten
100
microsecond
markers)
at
the
clockwise
end
of
rotation
(
see
Fig.
4-12).
f.
Return
the
WIDTH VARIABLE
control
to
the
CAL
position.
15.
Check output amplitude (into the
5012 ter
mination)
a. Turn
the
Type
114
AMPLITUDE — VARIABLE
control
slowly
counterclockwise,
checking
for
smooth
mechanical
and
electrical
oporation.
b.
Set
the
Type 1A1
Channel
1
VOLTS/CM switch
to
1
and
check
for
3
cm
or
less
of
vertical
deflection
when
the
AMPLITUDE
VARIABLE
control
is
fully counterclockwise.
Fig.
4-16. location of 100 nS Pulse Width capacitor C195F.
c.
Set
the
Type
1A1
Channel
1
VOLTS/CM
switch
to
2.
Rotate
the
Type
114
AMPLITUDE
—
VARIABLE control
fully
clockwise.
Check
for 5
cm
or
more
of
vertical
deflection.
d.
Change
the
AMPLITUDE
switch
to
—
3
to
10
V
and
re
peat
the
amplitude
check.
Check
both
the
+
and
—
1
V
to
3
V
positions
of
the
AMPLITUDE
switch.
4-10
Summary of Contents for 114
Page 3: ...Type 114 Type 114 Pulse Generotor ...
Page 8: ...Operating Instructions Type 114 Fig 2 1 Front panel control Fig 2 2 Type 114 rear ponel 2 2 ...
Page 10: ...NOTES ...
Page 14: ...NOTES ...
Page 28: ...Maintenance and Calibration Type 114 Fig 4 20 Locations of electrical components 4 14 ...
Page 30: ...Parts List Type 114 EXPLODED VIEW 5 2 ...
Page 45: ...TYPE 114 PULSE GENERATOR ...
Page 46: ...PULSE GENERATOR ...
Page 47: ...TYPE IM PULSE GENERATOR c ...
Page 48: ...SW282 POWER SUPPLY CMD OUTPUT AMPLIFIER 4 POWER SUPPLY ...