Calibration—
Type
3B5
Indicator Oscilloscope
Focus
Adjust
for
correct
display
Intensity
Visible
display
Calibrator
10
Volts
Power
On
22.
Check
Operating
Mode
a.
Test
equipment
setup
is
shown
in
Fig.
6-23.
b. Remove
the
Type
3B5
from
the
indicator oscilloscope
and
reconnect
using
the
rigid
plug-in
extender (turn
indicator
oscilloscope
power
off
while
removing
and
reconnecting
the
Type
3B5).
Lay
the
indicator
oscilloscope
on
its
left
side.
c.
Connect
the
time-mark generator
to
the
amplifier
unit
input
connector
through
a
50-ohm
BNC
cable
and
a
50-ohm
BNC
termination.
d.
Set
the
time-mark
generator for
one-millisecond
markers.
e.
Press
the
SEEK button.
f. CHECK—
SEEK
button
lights
and
a
stable
display
is
presented.
g.
Press
the
EXT
button
momentarily.
h.
CHECK
—
EXT
button
lights
as
long
as
it
is
held
depressed.
i.
Release
the
EXT button.
j.
CHECK
—MAN
button
lights
and
a
stable
display
is
presented.
23. Check Seek Mono
Pulse
Width
and
Seek
Cycling
Time
a.
Connect
the
10X
probe
to
the
test
oscilloscope
system
and
connect
the
probe
tip
to
pin
8
of
J400
(Logic
Card;
see
Fig. 6-24A).
b.
Set
the
test
oscilloscope
for
a vertical
deflection
of
0.5
volt/division
(5
volts/division
including
10X
probe) at a
sweep
rate
at
0.2
second/division.
Set
the trigger
slope
switch
to
+
and
the
LEVEL
control
slightly
clockwise
from
midrange.
c.
CHECK
—
Press
the
SEEK
button
and release.
Check
test
oscilloscope
display
for
a
positive
pulse
between
five and
(A)
(C)
Fig.
*
(A)
Location
of Pin
8,
J400 (bottom), (B) Typical test
oscilloscope display when checking seek mono pulse duration, (C)
Typical
test oscilloscope display when checking seek cycling time.
6-23
Summary of Contents for 3B5
Page 4: ...Fig 1 1 Type 3B5 Automatic Programmable Time Base unit Type 3B5...
Page 15: ...Operating Instructions Type 3B5 TYPE 3B5 CONTROL SET UP CHART Fig 2 2 Control set up chart 2 7...
Page 48: ...CO I o Fig 3 13 Delay and Timing Circuit logic block diagram Circuit Description Type 3B5...
Page 61: ...GO i GO GO Fig 3 22 Seek Ciicuit Logic block diagram Circuit Description Type 3B5...
Page 70: ...u k KJ Fig 3 29 Circuit conditions for Manual Mode operation Circuit Description Type 3B5...
Page 71: ...w K w Fig 3 30 Circuit conditions for Seek Mode operation Circuit Description Type 3B5...
Page 72: ...w I u U Fig 3 31 Circuit condition for External Mode operation Circuit Description Type 3B5...
Page 88: ...Maintenance Type 3B5 Fig 4 9 Location of components on Logic Card 4 14...
Page 89: ...u Oi Fig 4 10 Location of components on Counter Card Maintenance Type 3B5...
Page 92: ...NOTES I...
Page 104: ...NOTES...
Page 106: ...Calibration Type 3B5 Fig 6 1 Recommended calibration equipment...
Page 160: ......
Page 176: ...J400 RtADOUT BOARD 3B5 PLUG IN A READOUT...
Page 182: ...397 R E A D O U T B O A R D 10 6b READOUT BOARD...
Page 184: ...FIG 1 FRONT SWITCHES TYPE 3B5 AUTOMATIC PROGRAMMABLE TIME BASE...
Page 185: ...FIG 2 CHASSIS REAR 3 GS to TYPE 3B5 AUTOMATIC PROGRAMMABLE TIME BASE...
Page 186: ...OPTIONAL ACCESSORIES...
