Performance
Check
—Type
3B5
Spacing
between markers must
be four
divisions or
less
for 2.5:1
range
Fig.
5-3.
Typical CRT display when checking VARIABLE control range
a.
Set
the
time-mark
generator
for
one-millisecond
and
0.1
-millisecond
marker
output.
b.
Position
the
eleventh
one-millisecond
marker
to
the
center
vertical
line
with
the
POSITION
control.
c.
CHECK
—
CRT
display
for
sweep
length
between
10.3
and
11.3
divisions as shown by
0.3
to
1.3
divisions
of
dis
play
to
the
right
of
the
center
vertical
line
(see
Fig.
5-4A).
Large
markers
in the
display
indicate
divisions
and
small
markers
indicate 0.1
division
(unmagnified
only).
d.
Set
the
DLY'D
SWP
MAG
switch
to
X10.
e. CHECK
—
CRT display
for
sweep length
between
12
and
15
divisions
as
shown
by
two
to
five
divisions
of
display
to
the
right
of
the
center
vertical
line
(see Fig. 5-4B).
f. Set
the
DLY
’D
SWP
MAG
switch
to
XI
00.
g.
CHECK—
CRT
display
shows
same sweep
length
as
in
step e.
10.
Check
Delay
Dial
Accuracy
REQUIREMENT
—Within
±1.5%
of
full
scale
at
1
ms/DIV;
within
±3%
of
full
scale
at
all other
sweep
rates
(includes
incremental
linearity).
NOTE
See
Section
6,
steps
10
and
11
for
verification
of
DELAY
dial
incremental
linearity.
a.
Set
the time-mark
generator
for
one -
millisecond
markers.
b. Set
the
DELAY
dial
to
1.00
and
then
rotate
the
dial
as
necessary
so the
magnified
portion
starts at the
leading
edge
of
the
second
marker (see
Fig.
5-5).
c. CHECK
—
DELAY
dial
setting
1.00,
±7.5
minor
dial
divisions (±1.5% of full scale).
d.
Repeat
this
check
at
each
major
dial
division
between
2.00
and
9.00.
Check
for ±7.5
minor
dial
divisions,
or
less,
deviation
between
the major
dial
divisions
and
the
dial
setting
which
produces
the
correct
display.
e. Set
the
MANUAL
TIME/DIV
switch
to
2
ms
(sweep
read
out
20
/xs/DIV).
f. CHECK—
Set
the
DELAY
dial
to
each
major
dial
division
between
1.00
and
9.00
and
then
rotate
the
dial
as
necessary
so
the
magnified
portion
starts
at
the
leading
edge
of
the
applicable
marker
(two
markers/division).
Check for
±15
minor
dial
divisions,
or
less
deviation
between
the major
dial
divisions and
the
dial
setting
which
produces
the
correct
display
(±3%
of full
scale).
Fig.
5-4. Typical CRT display when checking
sweep length. (A) Unmagnified, IB) X10 magnification.
5-5
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...
