Tektronix TM 515 User Manual

Maintenance-TM 515
Calibration

Power Cord Conductor Identlticatlon
To ensure
accurate signal generation and measure-
ment, the performance of individual units composing the
system should be checked periodically
. Refer
to
the
instruction manual for each unit for complete calibration
and verification procedures .
I ntroduction
TROUBLESHOOTING
AIDS
Generally, a wide-band oscilloscope, a probe, and a
The following is provided to augment information

multimeter are all that is needed to perform basic
contained elsewhere in this and other TM 500-Series

waveform and
voltage checks for diagnostic purposes on
manuals when troubleshooting becomes necessary .

units
in this module . The calibration procedures in the
manual for each plug-in lists specific test equipment and
the features necessary to adequately check out that
Circuit Description

particular unit .
Each manual has a section
devoted to explaining
circuit operating theory . Used conjointly with the
schematics, this can be a powerful analytic tool .
Conductor

Color

Alternate Cdor
Ungrounded (Line)

Brown

Black
Grounded (Neutral)

Blue

White
Grounding (Earthing) Green-Yellow

Green-Yellow
Testing Equipment
TROUBLESHOOTING TECHNIQUES
Introduction
Diagrams

This troubleshooting procedure is arranged in an order
that checks the simple possibilities before
proceeding
to
Block diagrams and detailed schematic diagrams are

extensive troubleshooting .
located on foldout pages in the Service section of most of
the TM 500-Series manuals . The schematic diagrams
show the
component values and assigned circuit

Control Settings
reference numbers of each part necessary to the circuit
design . Usually the first page of the Diagram section

Incorrect control settings can indicate a trouble that
defines thethe circuit symbolsand reference designators

does not exist . If there is any question about
the
correct
used in that
particular instrument . Major circuits are

function of
any control,
see
the Operating Instructions
usually identifiable by a series of component numbers .

section of the manual for the instrument involved .
Important waveforms and voltages
may be shown within
the
diagrams or on
adjoining aprons . Those portions of
the circuits located on circuit boards are enclosed with a

Systemand Associated Equipment
blue or gray outline .

Before proceeding with troubleshooting the TM 500-
Series system, check that the instruments in the system
are operating correctly . Check for proper
interconnection
between the power module and the plug-ins . Check the
Circuit Board Illustrations

line voltage at the power source . Check that the signal is
Illustrations showing component locations keyed with

properly connected and that the interconnecting cables
a grid scheme for each circuit board are usually placed on

and signal source are not defective .
the back of a foldout page and sequenced as close as
possible to an associated schematic . The GRID LOC
columns, located near the Parts Location Grid, keys each

Cam
Switch Charts
component to easy location on
the
board .

Cam switches
shown
on
the diagrams are coded on
comprehensive charts
to
locate the cam number of the
Component and Wiring Color Codes

switch contact in the complete switch
assembly, counting
from the front, or knob
end, toward the rear of the switch .
Colored stripes or
dots on electrical components

The charts also
indicate with a solid dot when each
signify electrical values,
tolerances, etc ., accordingtoEIA

contact is closed
. Some contacts are momentarily closed
standards .
Components not color-coded usually have

between detent positions and these areidentifiedthrough
information printed on the body . The
wiring coding

the use of a triangular dot between detents
in the
contact
follows the same EIA standards,
except as follows :

drawing .
3- 2
@ JAN 1980

Tektronix TM 515 Specifications

General

Brand	Tektronix
Model	TM 515
Category	Power Supply
Language	English