Performance
Check
—Type 3B5
Fig.
5-10. Typical CRT display when checking external horizontal
operation.
connect
a
20-k
Ω,
1/2
-watt
resistor
between
terminals 14
and
22.
Connect
a
jumper
lead
(wire) from
the
indicator
oscillo
scope
calibrator
output connector
to
terminal
4
of
the
PRO
GRAM
connector
(10
volts
calibrator
output). (If using
the
special circuit,
connect
a
BNC
cable
from
the
calibrator
output
connector
to
the
external
horizontal
input
connector
and
switch
to
external
horizontal.)
b. CHECK
—
Two
dots
displayed on
screen
about
two
divisions apart
(deflection
factor about
5
volts/division,
see
Fig.
5-10).
c.
Disconnect
all connections
to
the
PROGRAM
connector
(special
circuit
may
be
left in place).
23.
Check
Single
Sweep
Operation
REQUIREMENT
—
Single
sweep
display
presented
each
time
circuit
is
reset.
a.
Set
the
MANUAL
TIME/DIV
switch
to
20
ms
and
the
Trigger
Function switch
to
INT-AC.
b.
Connect
the
indicator
oscilloscope
calibrator
output
to
the
amplifier
unit
input
connector
with
a
BNC
cable.
c.
Set
the
amplifier
unit
for about
four
divisions of
verti
cal
deflection.
d. Set
the
LEVEL
control for
a
stable
display.
e.
Connect
a
jumper
lead
(wire)
between terminals
7
and
18
(Caution; +
125
volts)
of
the
PROGRAM
connector.
(If
using
special
circuit,
set
switch
to
single
sweep.)
f. CHECK—A
trace
is
not displayed
but
the
NOT
TRIG'D
readout
remains
off.
g.
Connect
a
jumper
lead to
terminal
25
of
the
PRO
GRAM
connector.
Momentarily
touch
the
other
end
of
the
jumper
lead
to
terminal
1.
(Disregard
this
step
for
special
circuit.)
h.
CHECK
—
A
single
display
(one
sweep
only)
is
pre
sented
each
time
the
circuit
is
reset
by
touching
the jumper
lead
to
terminal
1
(there will
be
more
than
one
sweep
if
the
jumper
lead is
connected
to
terminal
1
throughout
the
entire
sweep.)
If
using
the
special
circuit,
check that
a
single
display
is presented
each
time
the
reset
button is pressed.
i. Disconnect
all
test
equipment.
24.
Check
External
Programmed
Operation
No
test
procedure
is
given
here
for
checking
the
external
programmed
operation
of
this
unit.
If
a
Tektronix
external
programmer
is
used,
a
complete
checkout
procedure
for
the
programmable
functions is
given
in
the
Instruction
Manual
for
that
unit.
To
check external programmed
operation
without
a
programmer,
use
the
external
program
informa
tion
given
in
Section
2.
This
completes
the
performance
check procedure for
the
Type
3B5.
If
the
instrument
has
met
all
performance
re
quirements
given
in
this
procedure,
it
is
correctly calibrated
and
within
the
specified
tolerances.
5-11
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...
