Maintenance
Clean the power
switch using a dampened cleaning towel. Do not spray or wet
the sw itch directly.
CAUTION. Avoid the use of c hemical cleaning agents, which might damage the
plastics used in this oscilloscope. Use only deionized water when cleaning the
menu buttons or front-panel b uttons. Use a 75% isopropyl alcohol solution as a
cleaner and rinse with deionized water. Before using any other type of cleaner,
consult you
r Tektronix Service Center or representative.
Exterior Inspection
Inspect the outside of the oscilloscope for damage, wear, and m issing parts,
using the
following table as a guide. Immediately repair defects that could cause
personal injury or lead to further damage to the oscilloscope.
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
.
Conne
ctors
Broken shells, cracked insulation, and
defor
med contacts. Dirt in connectors.
Repai
r or replace defective modules. C lear
or wash out dirt.
Carrying handle, and cabinet feet Correct operation. Repair or replace defective module.
Acce
ssories
Missing items or parts of items, bent pins,
broken or frayed cables, and damaged
con
nectors.
Repa
ir or replace damaged or missing
items, frayed cables, and defective modules.
Interior Inspection
To
access the inside of the oscilloscope for cleaning and inspection, refer to the
exploded view diagrams. (See page 21, Replaceable Parts List.)
I
nspect the internal portions of the oscilloscope for damage and wear, using the
following table as a guide. Repair any defects immediately.
If any circ uit board is repaired or replaced, adjustment is required. (See page 7,
Adjustments.)
CAUTION. To prevent damage from electrical arcing, make sure that circuit
boards and components are dry before applying power to the oscilloscope.
MDO3000 Series Mixed Domain O scilloscopes Service Manual 11
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