Tektronix TM 503 User Manual

System Maintenance—TM 503
PARTS
ORDERING
AND
REPLACING
Ordering
Standard Parts. All electrical and mechanical replacement
parts
can
be
obtained
through
the
local
TEKTRONIX
Field
Office or representative. However, many of the standard
electronic components can be obtained locally in less time
than is required to order them from Tektronix, Inc. Before
purchasing or ordering replacement parts, check the Parts
Lists for value, tolerance, rating, and description. When
selecting
replacement
parts,
it
is
important
to
remember
that the physical size and shape of the component may
affect its performance in an instrument. All replacement
parts should be direct replacements unless it Is known that
a different component will not adversely affect the instru-
ment performance.
Special
Parts.
Some
parts
are
manufactured
or
selected
by
Tektronix,
Inc.,
to
satisfy
particular
requirements,
or
are
manufactured
for
Tektronix,
Inc.,
to
our
specifications.
Most
of
the
mechanical
parts
used
in
this
system
have
been
manufactured
by
Tektronix,
Inc.
Order
all
special
parts
directly
from
the
local
TEKTRONIX
Field
Office
or
representative.
Ordering Procedure. When ordering replacement parts
from Tektronix, Inc., please include the following mini-
mum information:
1. Instrument Type (PS 501, SG 502, DC 501, etc.)
2. Instrument Serial Number (For example, BO10250)
3. A description of the part (if electrical, include the
circuit number)
4. TEKTRONIX part number
Please do not return any instruments or parts before
receiving directions from Tektronix, Inc.
A listing of TEKTRONIX Field Offices, Service Centers,
and Representatives can be found in the TEKTRONIX
Product Catalog and Supplements.
V1
Replacing
The
exploded
view
drawings
associated
with
the
Mechanical
Parts
Lists,
located
to
the
rear
of
most
manuals,
may
be
especially
helpful
when
disassembling
or
re-
assembling
individual
components
or sub-assembles.
Circuit
Boards.
if
a
circuit
board
is
damaged
beyond
repair,
the
entire
assembly
including
all
soldered-on
com-
ponents,
can
be
replaced,
Part
numbers
are
given
in
the
mechanical
parts
lists
for
the
completely
wired
(670
prefix)
board.
To remove or replace a board, proceed as follows:
1.
Disconnect
all
leads
connected
to
the
board
(both
saidered
lead
connections
and
solderless
pin
connections},
2. Remove all screws holding the board to the chassis or
other mounting surface. Some boards may be held fast by
plastic
mounting
clips
around
the
board
edges.
For
these,
push
the
mounting
clips
away
from
the
circuit
board
edges
to free the board. Also, remove any knobs, etc., that would
prevent the board from being lifted out of the instrument.
3.
Lift
the
circuit
board
out
of
the
unit.
Do
not
force
or
bend
the
board.
4. To replace the board, reverse the order of removal.
Use care when replacing pin connectors; if forced into place
incorrectly positioned, the pin connectors may be damaged.
Transistors and iC’s. Transistors and IC’s should not be
replaced unless they are actually defective. If removed from
their sockets during routine maintenance return them to
their original sockets. Unnecessary replacement or
switching of semiconductor devices may affect the calibra-
tion of the instruments. When a transistor is replaced, check
the operation of the part of the instrument that may be
affected.
REV.C, JAN. 1975

Tektronix TM 503 Specifications

General

Brand	Tektronix
Model	TM 503
Category	Control Unit
Language	English