Tektronix AWG7000 Series, Service Manual

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Maintenance
AWG7000 Series Service Manual
4-3
Inspection and Cleaning
procedures
The collection of dirt on internal components can cause them to overheat and fail.
Dirt also provides an electrical conduction path
that could cause an instrument
failure, especially under high-humidity conditions. Inspect the instrument as often
as operating conditions require.
Inspection — Exterior. Inspect the outside of the instrument for damage, wear, and
missing parts, using Table 4-1 as a guide. An instrument that appears 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 further damage to the instrument.
Cleaning Procedure — Exterior. Do the following steps to clean the instrument
exterior:
1. Remove loose dust on the outside of the instrument with a lint-free cloth. Use
care to avoid scratching the clear glass display shield.
WARNING.
Before performing any of the following procedures, power down the
instrument and disconnect it from line voltage.
CAUTION.
Avoid the use of chemical cleaning agents, which might damage the
plastics used in this AWG7000 Series Arbitrary Waveform Generator. Use only
deionized water when cleaning the front-panel buttons. Use an ethyl alcohol
solution as a cleaner and rinse with deionized water.
Table 4-1: External inspection checklist
Item Inspect for Repair action
Cabinet, front-panel,
and cover Cracks, scratches, deformations,
damaged hardware or gaskets. Repair or replace defective
module.
Front-panel knob Missing, damaged, or loose knob. Repair or replace missing or
defective knob.
Connectors Broken shells, cracked insulation,
and deformed contacts. Dirt in
connectors. Repair or replace defective
modules. Clear or wash out dirt.
Carrying handle
and cabinet feet Correct operation. Repair or replace defective
module.
Accessories Missing items or parts of items,
bent pins, broken or frayed
cables, and damaged connectors. Repair or replace damaged or
missing items, frayed cables, and
defective modules.