Tektronix AWG2021 User Manual page 574

Appendix G: Inspection and Cleaning
Inspection Exterior
Table G 1: External inspection check list
Item
Cabinet, front panel, and cover
Front panel knobs
Connectors
Carrying handle and cabinet feet
Accessories
AWG2021 User Manual
Inspect and clean the instrument as often as operating conditions require. The
collection of dirt can cause instrument overheating and breakdown. Dirt acts as
an insulating blanket, preventing efficient heat dissipation. Dirt also provides an
electrical conduction path that can cause an instrument failure, especially under
high-humidity conditions.
CAUTION. To prevent damage avoid the use of chemical cleaning agents that
might damage the plastics used in this instrument. Use only deionized water
when cleaning the menu buttons or front-panel buttons. Use a ethyl alcohol
solution as a cleaner and rinse with deionized water.
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 G-1 as a guide, inspect the outside of the instrument for damage,
wear, and missing parts. You should thoroughly check instruments that appear to
have been dropped or otherwise abused to verify correct operation and perfor-
mance. Immediately repair defects that could cause personal injury or lead to
further damage to the instrument.
Inspect for
Cracks, scratches, deformations, damaged
hardware or gaskets
Missing, damaged, or loose knobs
Broken shells, cracked insulation, and
deformed contacts. Dirt in connectors
Correct operation
Missing items or parts of items, bent pins,
broken or frayed cables, and damaged
connectors
Repair action
Replace defective module
Repair or replace missing or defective knobs
Replace defective modules; clear or wash out
dirt
Replace defective module
Replace damaged or missing items, frayed
cables, and defective modules
G 1