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Tektronix 7613 User Manual

Tektronix 7613
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Section
4—7613/R7613
Service
MAINTENANCE
This section
of
the
manual
contains
maintenance
infor-
mation
for
use
in
preventive
maintenance,
corrective
maintenance,
or
troubleshooting
of
the
7613.
Dangerous
potentials
exist
at
several
points
through-
out
this
instrument.
When
the
instrument
is
operated
with
the
covers
removed,
do
not
touch
exposed
connections
or
components.
Some
transistors
have
voltages
present
on
their
cases.
Disconnect
power
before
cleaning
the
instrument
or
replacing
parts.
Cabinet
Model.
The
side
panels
of
the
7613
are
held
in
place
by
spring-action
of
the
panels
themselves.
To
remove
the
panels,
push
the
panel
toward
the
top
of
the
instrument
until
the
bottom
of
the
panel
is
clear
of
the
slot
along
the
bottom
rail
of
the
instrument.
Then,
pull
the
panel
out
at
the
bottom
and
lift
away
from
the
instrument.
The
bottom
panel
is
held
in
place
with
eight
screws.
The
panels
protect
this
instrument
from
dust
in
the
interior,
and
also
provide
protection
to
personnel
from
the
operating
potentials
present.
They
also
reduce
the
EMI
radiation
from
this
instrument
or
EMI
interference
to
the
display
due
to
other
equipment.
Panel
Removal
Rack
Model.
The
top
cover
is
held
in
place
with
six
screws.
To
remove
the
cover,
the
screws
need only
be
loosened
slightly
to
slide
the
cover
out
of
the
slots.
A
panel
on
the
left
side
of
the
instrument,
held
in
place
with
six
screws,
allows
access
to
the
vertical
amplifier
circuit
board.
A
cover
on
the
rear
of
the
instrument,
held
in
place
with
four
screws,
allows
access
to
the
power
supply
regulating
transistors.
It
also
allows
access
to
three
of
the
five
screws
holding
the
regulating
circuit
board
assembly
in
the
instrument.
Power-Unit
Removal
The
power
unit
can
be
slid
out
of
the
back
of
the
7613
to
gain
access
to
the
Logic
and
Rectifier
circuit
boards
and
for
power-unit
maintenance.
The
power
unit
can
be
left
connected
to
the
rest
of
the
instrument
so
that
it
can
be
operated
in
this
position
for
troubleshooting.
To
remove
the
power
unit,
use
the
following
procedure:
1,
Remove
the
side
panels
(top
panel
for
R7613).
2.
Remove
the
six
screws
which
secure
the
power
unit
to
the
sides
of
the
instrument
(see Fig.
4-1
for
locations
of
screws
on
R7613).
3.
Slide
the
power
unit
out
of
the
rear
of
the
instrument
until
it
can
be
set
down
on
the
work
surface
(guide
the
interconnecting
cables
so
they
do
not
catch
on
other
parts
of
the
instrument).
These
screws
peal
secure
the
-+—__
Power
Unit
i
!
MA
mi
E
Fig.
4-1.
Power
unit
removal
for
the
R7613.
PREVENTIVE
MAINTENANCE
General
Preventive
maintenance
consists
of
cleaning,
visual
inspection,
lubrication,
etc.
Preventive
maintenance
per-
formed
on
a
regular
basis
may
prevent
instrument
break-
down
and
will
improve
the
reliability
of
this
instrument.
The
severity
of
the
environment
to
which
the
7613
is
subjected
determines
the
frequency
of
maintenance.
A
convenient
time
to
perform
preventive
maintenance
is
preceding
recalibration
of
the
instrument.
Cleaning
The
7613
should
be
cleaned
as
often
as
operating
conditions
require.
Accumulation
of
dirt
in
the
instrument
can
cause
overheating
and
component
breakdown.
Dirt
on
components
acts
as
an
insulating
blanket
and
prevents
efficient
heat
dissipation.
It
also
provides
an
electrical
conduction
path
which
may
result
in
instrument
failure.
The
side
panels
provide
protection
against
dust
in
the
interior
of
the
instrument.
Operation
without
the
panels
in
place
necessitates
more
frequent
cleaning.
)
CAUTION
:
Avoid
the
use
of
chemical
cleaning
agents
which
might
damage
the
plastics
used
in
this
instrument.
Avoid
chemicals
which
contain
benzene,
toluene,
xylene,
acetone,
or
similar
solvents.
Exterior.
Loose
dust
accumulated
on
the
outside
of
the
7613
can
be
removed
with
a
soft
cloth
or
small
brush.
The
brush
is
particularly
useful
for
dislodging
dirt
on
and
around
the
front-panel
controls.
Dirt
which
remains
can
be
removed
with
a
soft
cloth
dampened
in
a
mild
detergent
and
water
solution.
Abrasive
cleaners
should
not
be
used.
41
7613

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Tektronix 7613 Specifications

General IconGeneral
BrandTektronix
Model7613
CategoryTest Equipment
LanguageEnglish

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