Tektronix MTG100 - Manual (Page 240)

MTG100 & MTG300 MPEG Generator User Manual
EĆ1
Appendix E: Inspection and Cleaning
Inspect and clean the instrument as often as your operating conditions require.
The collection of dirt can cause instrument overheating and operational failure.
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. Avoid the use of chemical cleaning agents that might damage the
plastics used in this instrument. Use only deionized water when cleaning the
front-panel controls. Use a 75% 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 Electro Static Discharge
(ESD). Instead, use low-pressure compressed air (about 9 psi).
Exterior Inspection
Using Table E-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.
Table EĆ1: External inspection check list
Item Inspect for Repair action
Cabinet and front panel Cracks, scratches, deformations, damaged
hardware or gaskets
Replace defective module
FrontĆpanel knobs Missing, damaged, or loose knobs Repair or replace missing or defective knobs
Connectors Broken shells, cracked insulation, deformed
contacts, and dirt in connectors
Replace defective modules; clear or wash out
dirt
Accessories Missing items or parts of items, bent pins,
broken or frayed cables, and damaged
connectors
Replace damaged or missing items, frayed
cables, and defective modules
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