Maintenance
6–2 THS710A, THS720A, THS730A & THS720P Service Manual
3. Discharge the static voltage from your body by wearing a grounded antistatic
wrist strap while handling these modules. Do service of static-sensitive
modules only at a static-free work station.
4. Nothing capable of generating or holding a static charge should be allowed
on the work station surface.
5. Handle circuit boards by the edges when possible.
6. Do not slide the modules over any surface.
7. Avoid handling modules in areas that have a floor or work-surface covering
capable of generating a static charge.
Inspection and CleaningThis section describes how to inspect for dirt and damage, and how to clean the
TekScope instrument. Inspection and cleaning are done as preventive mainte-
nance. Preventive maintenance, when done regularly, may prevent malfunctions
and enhance reliability.
Preventive maintenance consists of visually inspecting and cleaning the
TekScope instrument, and using general care when operating it. How often to do
maintenance depends on the severity of the environment in which the instrument
is used. A proper time to perform preventive maintenance is just before
adjustment of the instrument.
Protect the TekScope instrument from adverse weather conditions. The instru-
ment is not waterproof.
Do not store or leave the instrument where the LCD display will be exposed to
direct sunlight for long periods of time.
The front and back covers help keep dust out of the TekScope instrument and
must be in place during normal operation.
CAUTION. To avoid damage to the TekScope instrument, do not expose it to any
sprays, liquids, or solvents.
Inspect and clean the TekScope instrument as often as operating conditions
require. The collection of dirt on internal components 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
instrument failure, especially under high-humidity conditions.