Maintenance
6–2
TDS 340A, TDS 360 & TDS 380 Technical Reference
General Care
The cabinet helps keep dust out of the oscilloscope and it is a major component
of its cooling system. It should normally be in place when operating the
oscilloscope. The optional oscilloscope front cover protects the front panel and
display from dust and damage. Install it when storing or transporting the
oscilloscope.
Inspection and Cleaning Procedures
Inspect and clean the oscilloscope as often as operating conditions require. The
collection of dirt on components inside can cause them to overheat and
breakdown. (Dirt acts as an insulating blanket, preventing efficient heat
dissipation.) Dirt also provides an electrical conduction path
that could cause an
oscilloscope failure, especially under high-humidity conditions.
CAUTION. Avoid the use of chemical cleaning agents that might damage the
plastics used in this oscilloscope. Use only deionized water when cleaning the
menu buttons or front-panel buttons. Use a 75% isopropyl alcohol solution as a
cleaner and rinse with deionized water. Before using any other type of cleaner,
consult your Tektronix Service Center or representative.
Avoid the use of high pressure compressed air when cleaning dust from the
interior of this instrument. (High pressure air can cause ESD.) Instead, use low
pressure compressed air (about 9 psi).
Using Table 6–1 as a guide, inspect the outside of the oscilloscope for damage,
wear, and missing parts. You should thoroughly check oscilloscopes that appear
to have been dropped or otherwise abused to verify correct operation and
performance. Immediately repair defects that could cause personal injury or lead
to further damage to the oscilloscope.
Inspection — Exterior
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