Exterior cleaning
Clean the exterior surfaces of the chassis with a dry lint-free cloth or a soft-bristle
brush. If any dirt remains, use a cloth or swab dipped in a 75% isopropyl alcohol
solution. Use a swab to clean narrow spaces around controls and connectors. Do
not use abrasive compounds on any part of the chassis that may damage the
chassis.
Clean the On/Standby switch using a cleaning towel dampened with deionized
water. Do not spray or wet the switch itself.
CAUTION. Avoid the use of chemical cleaning agents which might damage the
plastics used in this instrument. Use only deionized water when cleaning the
front-panel buttons. Use a 75% isopropyl alcohol solution as a cleaner for
cabinet parts. Before using any other type of cleaner, consult your Tektronix
Service Center or representative.
Inspection - Exterior. Inspect the outside of the instrument for damage, wear,
and missing parts. Immediately repair defects that could cause personal injury or
lead to further damage to the instrument.
Table 1: External inspection checklist
Item Inspect for Repair action
Cabinet, front panel, and cover Cracks, scratches,
deformations, damaged
hardware
Repair or replace defective
module
Front-panel knobs Missing, damaged, or loose
knobs
Repair or replace missing or
defective knobs
Connectors Broken shells, cracked
insulation, and deformed
contacts. Dirt in connectors
Repair or replace defective
modules. Clear or brush 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
Maintenance
TBS2000B Series Service Manual 11
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