Instructions

• Do not spray liquids directly on the display surface.
• Do not scrub the display with excessive force.
CAUTION: To prevent getting moisture inside the instrument during external cleaning, do not spray any cleaning solutions directly
onto the screen or instrument.
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
Interior cleaning
You can only clean the interior of the rear chassis assembly. To access the rear chassis assembly, see the Removal and Installation
Procedures topics.
Do not disassemble or clean the front chassis assembly (other than cleaning the front panel display and removing panel knobs).
Disassembling the front chassis assembly requires that the instrument be returned to your nearest Tektronix Service Center for calibration.
Warning:
To avoid electric shock or damage to the instrument, remove instrument power. Before performing any procedure that
follows, power down the instrument and disconnect it from line voltage.
• Blow off dust with dry, low-pressure (approximately 9 psi), deionized air.
• Use a soft-bristle, non-static-producing brush for cleaning around components.
• Remove any remaining dust with a lint-free cloth dampened in isopropyl alcohol (75% solution). (A cotton-tipped applicator is useful for
cleaning in narrow spaces and on circuit boards).
• If you must use a liquid for minor rear chassis interior cleaning, use a clean-room wipe (such as Wypall Medium Duty Wipes, #05701,
available from Kimberly-Clark Corporation) dampened with a 75% isopropyl alcohol solution.
Maintenance
TBS2000B Series Digital Storage Oscilloscopes Service Manual 17