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Tektronix 7613 User Manual

Tektronix 7613
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Time-Stot
<<
iF
+41?
+
324
+
B&B
+
Bs
7
«BB
1
Os:
R41
R-2
a-3
Ra
RS
RG
RR?
As
RO
R10
{A}
Nine
Slot
—
a
a
a
a
ee
a
ee
a
co
TT
C1
Le
4
os
Ei
i
a
cs
mt
7
Lt
ce
e
c-10
is
{8}
Program
for
100 uV,
inverted,
calibrated
(uncalibrated
operation
shown
by
shaded
area)’
Fig.
3-33.
Idealized
current
waveforms
of:
(A)
Row
analog
data,
(B)
Column
analog
data.
connectors
of
vertical
plug-in
units.
A
special
coding
ring
around
the
input
connector
of
the
plug-in
unit
senses
the
attenuation
ratio
of
the
probe
(with
readout-coded
probes
only).
The
probe
contains
a
resistor
which
results
in
additional
column
current.
For
example,
if
a
10X
attenua-
tor
probe
is
connected
to
a
plug-in
with
the
coding
for
100
microvolts
as
shown
in
Fig.
3-32,
an
additional
unit
of
current
is
added
to
the
column
analog
data
during
time-slot
1.
Since
two
units
of
current
were
encoded
by
R111
(see
Fig.
3-32),
this
additional
current
results
in
a
total
of
three
units
of
column
analog
current
during
this
time-slot.
Referring
to
the
Character
Selection
Matrix,
three
units
of
column
current
along
with
the
two
units
of
row
current
encoded
by
R10
indicates
that
the
prefix
should
be
reduced.
Since
this
instruction
occurs
in
the
same
time-slot
which
previously
indicated
that
two
zeros
should
be
added
to
the
display
and
only
one
instruction
can
be
encoded
during
a
time-slot,
the
zeros
do
not
appear
in
the
display.
The
CRT
readout
will
now
be
changed
to
1
mV
(readout)
program
produced
by
plug-in
same
as
for
previous
example.
Likewise,
if
a
100X
readout-coded
probe
is
connected
to
the
input
of
the
plug-in
unit,
the
column
current
during
Circuit
Description—7613/R7613
Service
time-slot
1
will
be
increased
two
units
for
a
total
of
four
units
of
column
current.
This
addresses
an
instruction
in
the
Character
Selection
Matrix
which
reduces
the
prefix
and
adds
one
zero
to
the
display.
The
resultant
CRT
readout
with
the
previous
program
is
10
mV.
Three
other
lines
of
information
are
connected
from
the
plug-in
compartments
to
the
Readout
System.
The
column
and
row
analog
data
from
channel
2
of
a
dual-channel
plug-in
are
connected
to
the
Readout
System
through
terminals
A38
and
B38
of
the
plug-in
interface,
respec-
tively.
Force
readout
information
is
encoded
on
terminal
A35;
function
of
this
input
is
described
under
Column
and
Row
Data
Switches.
The
preceding
information
gave
a
typical
example
of
encoding
data
from
an
amplifier
plug-in
unit.
Specific
encoding
data
and
circuitry
is
shown
in
the
individual
plug-in
unit
manual.
Column
and
Row
Data
Switches
The
readout
data
from
the
plug-in
units
is
connected
to
the
Column
and
Row
Data
Switch
stages
in
the
Readout
System.
A
column-data
line
and
a
row-data
line
convey
analog
data
from
each
of
the
eight
data
sources
(two
channels
from
each
of
the
four
plug-in
compartments).
TABLE
3-3
Channel
Address
Pin
1
U2232
“identify”
|
Pin
11|
Pin8
|
Pin9
Channel
Command
|
U2250
|
U2250
|
U2250
Selected
HI
HI HI HI
Channel
1
Left
Vertical
HI HI
HI
LO
Channel
2
Left
Vertical
HI
HI
LO
HI
Channel
1
Right
Vertical
HI
HI
LO
LO
Channel
2
Right
Vertical
HI
LO
HI
HI
Channel
1
Horizontal
HI
LO
HI
LO
Channel
2
Horizontal
The
Column
Data
Switch
U2190
and
the
Row
Data
Switch
U2180
receive
the
Channel
Address
No.
1
code
from
the
Channel
Counter.
This
binary code
directs
the
Column
Data
Switch
and
the
Row
Data
Switch
as
to
which
channel
should
be
the
source
of
the
readout
data.
Table
3-3
3-43
7613

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Tektronix 7613 Specifications

General IconGeneral
BrandTektronix
Model7613
CategoryTest Equipment
LanguageEnglish

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