Tektronix mtg100, mtg300 Manual Do Utilizador

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Maintenance
6Ć4
MTG100 & MTG300 MPEG Generator Service Manual
Inspection and Cleaning
Inspection and Cleaning describes how to inspect for dirt and damage. It also
describes how to clean the exterior and interior of the MPEG generator.
Inspection and cleaning are done as preventive maintenance. Preventive
maintenance, when done regularly, may prevent MPEG generator malfunction
and enhance its reliability.
Preventive maintenance consists of visually inspecting and cleaning the MPEG
generator and using general care when operating it.
How often preventative maintenance should be performed depends on the
severity of the environment in which the MPEG generator is used. A proper time
to perform preventive maintenance is just before MPEG generator adjustment.
The cabinet helps keep dust out of the MPEG generator and should normally be
in place when operating the MPEG generator. The MPEG generator’s front cover
protects the front panel and display from dust and damage. Install it when storing
or transporting the MPEG generator.
Inspect and clean the MPEG generator as often as operating conditions require.
The collection of dirt on components inside can cause them to overheat and
breakdown. (Dirt acts like an insulating blanket, preventing efficient heat
dissipation.) Dirt also provides an electrical conduction path
 
that
 
could cause an
MPEG generator failure, especially under high-humidity conditions.
 Avoid the use of chemical cleaning agents that might damage the
plastics used in this MPEG generator. Use only deionized water when cleaning
the menu buttons or front-panel buttons. Use a 75% ethyl alcohol solution as a
cleaner and rinse with deionized water.
Inspection Ċ Exterior. Inspect the outside of the MPEG generator for damage,
wear, and missing parts, using Table 6-2 as a guide. MPEG generators that
appear to have been dropped or otherwise abused should be checked thoroughly
to verify correct operation and performance. Immediately repair defects that
could cause personal injury or lead to further damage to the MPEG generator.
General Care
Inspection and Cleaning
Procedures