Calibration
—
Type
3B5
Sweep
length
range
Small
Large
markers
marker
Magnified
sweep length
range
(A)
(B)
Fig.
6-10.
Typical CRT display when checking sweep length. (A) Unmagnified, (B) X10 magnification.
f. Set
the
DLY
’D
SWP
MAG
switch
to
X
100.
g.
CHECK—
CRT
display
shows
same
sweep
length
as
step
e.
10.
Adjust
Delay
Start
and
Stop
a.
Set
the
DLY
’D
SWP
MAG
switch
to OFF.
b. Position
the
first marker
to
the
left
vertical
graticule
line.
c.
Return
the DLY'D
SWP
MAG
switch
to
X
1
00.
d. Set
the
time-mark
generator
for
one-millisecond
markers.
e. CHECK
—Magnified
portion
of
CRT
display
starts at
the
leading
edge
of
the
second
marker
(see Fig. 6-11 A).
f.
ADJUST
—
Start
adjustment,
R330 (see
Fig.
6-11 B),
so
the
magnified
portion
of
the
display
starts
at
the
leading
edge
of
the
second
marker.
g.
Set
the
DELAY
dial
to
9.00.
h.
CHECK
—
Magnified
portion
of CRT
display
starts
at
the
leading
edge
of
the
tenth marker
(see
Fig.
6-1
1C).
i. ADJUST—
Stop
adjustment,
R333
(see
Fig.
6-1
1
B),
so
the
magnified
portion
of
the
display
starts
at
the
leading
edge
of
the tenth marker.
j.
Recheck steps
e
through
i
and
readjust
if
necessary
until
the
magnified
portion
is positioned
correctly
for
both
checks.
11.
Check
Delay
Dial
Incremental
Linearity and
Accuracy
a. Set
the
DELAY
dial
to
2.00
and
then
rotate
the
dial
as
necessary
so
the
magnified
portion
starts
at
the
leading
edge
of
the
second
marker.
b.
CHECK
—
DELAY
dial
setting
2.00,
±2
minor
dial
divi
sions
(incremental
linearity
within
±0.4% of
full
scale;
this
check
applies
only
when
step
10
is
correctly
adjusted).
NOTE
Line
voltage
must
be
held
constant for
steps
1
0
and
11
for
given
incremental linearity
tolerance
to
apply.
c.
Repeat
this
check
at
each
major
dial
division
between
2.00
and
9.00.
Check
for
±2
minor
dial
divisions,
or
less,
deviation
between
the
major
dial
division
and
the
dial set
ting
which
produces
the correct
display.
d.
Set
the
MANUAL
TIME/DIV
switch
to
2
ms
(sweep
read
out
20
μ
s/DIV).
e. CHECK—
Set
the
DELAY
dial
to
each
major
dial
divi
sion
between
1.00
and
9.00
and
then
rotate
the
dial
as
neces
sary
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
division
and
the
dial
setting which
produces
the
correct
display (±3%
of full
scale).
f.
Set
the MANUAL
TIME/DIV
switch
to
5
ms
(sweep
read
out
50
μ
s/DIV).
g.
Set
the
time-mark generator
for five-millisecond
markers.
h. CHECK
—Set
the
DELAY
dial
to
each
major
dial
divi
sion
between
1.00
and
9.00
and
then
rotate
the
dial
as
neces-
6-12
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...
