Tektronix TM 515 User Manual

GENERAL

Exterior . Loose dust may be removed with a soft cloth
or a dry brush . Water and a mild detergent may beused .
Introduction

Abrasive
cleaners should not be used .
This section of the manual is meant to support the
entire TM 500-Series family of modules with a
general
coverage of the most
commonly-needed service informa-

Interior
. Cleaning the interior
of
any unit
should
lion

pertinent

to

preventive

maintenance,

trouble-

Precede calibration since the cleaning process could alter
shooting, ordering parts, and replacing components
and

the settings of calibration adjustments . Use low-velocity
sub-assemblies .

compressed
air
to blow
off
accumulated dust
.
Hardened
dirt can be
removed with a soft
brush,
cotton-tipped swab,
or
a cloth dampened in a solution of water and mild
Cabinet Removal

detergent .
Cleaning
WARNING

Preventive Maintenance
Dangerous potentials exist of
several points
throughout the system
. When the system must be
operated
with the cabinet removed, do not
touch
exposed conections or components . Some
tran-
sistors have voltage present
on their cases .
Disconnect power
before cleaning the system
or
replacing parts .
Two screws on
the rear panel secure the case to
the
TM 515 Power Unit . Unscrewthem and
lift
the
power unit
straight up to take the two apart
. Do not operate the
system with the
case removed any longer than necessary
for
troubleshooting and calibration . Re-install the
power
unit to protect the interior
from dust and to remove
personnel shock
hazards, as well as provide proper
ventilation .
When reinstalling the power unit in the case, care
should be taken to align the Power Supply mounts with
their respective holes in the Chassis (Support) Assembly
.
You may find it easier to fit the case to
the supply . Look
down through
the front end of the open case to make sure
the mounts align with their respective holes in the
assembly . Then, carefully holding the two units
together,
invert the
whole assembly and screw the two mounting
bolts
into place . See Fig . 3-1 .
CAUTION
MAINTENANCE
Section 3-TM 515
Preventive maintenance
steps
performed
on a regular
basis will improve the reliability of the instrumentation
systems . However, periodic checks of the semiconductors
in the absence of a malfunction are not recommended as
preventive maintenance measures . See Semiconductor
Checking information under Troubleshooting Techni-
ques which follow . A convernent time to perform preven-
tive
maintenance is just before instrument calibration .
Avoid
using chemical cleaning agents fhat might
damage
plastic parts . Avoid chemicals containing
benzene, toluene, xylene, acetone,
or similar
solvents .

Rg . 3-t
. Reassembly Guide-Pfn Alignment .
REV BJAN
1980

Tektronix TM 515 Specifications

General

Brand	Tektronix
Model	TM 515
Category	Power Supply
Language	English