Tektronix 2213, Instruction Manual

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7. Do not slide the components over any surface.
8. Avoid handling components in areas that have a flo o r
or work-surface covering capable o f generating a static
charge.
Maintenance—2213 Service
9. Use a soldering iron that is connected to earth ground.
10. Use only approved antistatic, vacuum-type desolder­
ing tools fo r component removal.
PREVENTIVE MAINTENANCE
INTRODUCTION
Preventive maintenance consists o f cleaning, visual
inspection, lubrication, and checking instrument
performance. When accomplished regularly, it may prevent
instrument malfunction and enhance instrument reliability.
The severity o f the environment in which the instrument is
used determines the required frequency o f maintenance. An
appropriate time to accomplish preventive maintenance is
just before instrument adjustment.
GENERAL CARE
The cabinet minimizes accumulation o f dust inside the
instrument and should normally be in place when operating
the 2213. The optional front-panel cover provides both
dust and damage protection fo r the fro n t panel and crt
face, and it should be in place whenever the instrument is
stored or is being transported.
INSPECTION AND CLEANING
The instrument should be visually inspected and cleaned
as often as operating conditions require. Accumulation of
d irt in the instrument can cause overheating and com­
ponent breakdown. D irt on components acts as an
insulating blanket, preventing efficient heat dissipation. It
also provides an electrical conduction path that could result
in instrument failure, especially under high-humidity
conditions.
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C A U T I O N (
A void the use o f chemical cleaning agents which
m ight damage the plastics used in this instrument.
U se a nonresidue-type cleaner,
preferably isopropyl
alcohol, denatured ethyl alcohol, o r a solution o f 1%
m ild detergent with 99% water. Before using any
other type of cleaner, consult your Tektronix Service
Center o r representative.
Exterior
INSPECTION. Inspect the external portions o f the
instrument fo r damage, wear, and missing parts; use
Table 6-2 as a guide. Instruments that appear to have been
dropped o r otherwise abused should be checked thoroughly
to verify correct operation and performance. Deficiencies
found th at could cause personal injury or could lead to
further damage to the instrument should be repaired
immediately.
To prevent getting moisture inside the instrument
during external cleaning, use o nly enough liq u id to
dampen the d o th o r applicator.
CLEANING. Loose dust on the outside o f the instru­
ment can be removed w ith a soft cloth or small soft-bristle
brush. The brush is particularly useful fo r dislodging d irt
on and around the controls and connectors. D irt that
remains can be removed w ith a soft cloth dampened in a
mild detergent-and-water solution. Do not use abrasive
cleaners. Clean the light filte r and the crt face w ith a soft
lint-free cloth dampened w ith either denatured alcohol or
a mild detergent-and-water solution.
Interior
To gain access to internal portions o f the instrument for
inspection and cleaning, refer to the "Removal and
Replacement Instructions" in the "Corrective Maintenance"
part of this section.
INSPECTION.
Inspect the internal portions o f the
instrument fo r damage and wear, using Table 6-3 as a guide.
Deficiencies found should be repaired immediately. The
corrective procedure for most visible defects is obvious;
however, particular care must be taken if heat-damaged
components are found. Overheating usually indicates other
trouble in the instrument; therefore, it is important that the
cause of overheating be corrected to prevent recurrence
of the damage.
6-2
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