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Appendix C: Miscellaneous
Example
Input
01
Output
011
Inspection and Cleaning
Exterior Inspection
Table C 2: External Inspection Check List
Item
Cabinet, front panel, and cover
Front panel knobs
Connectors
Carrying handle and cabinet feet
Accessories
C 8
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10
11
0010
10
000
110
000001 111
Inspect and clean the instrument as often as operating conditions require. The
collection of dirt can cause instrument overheating and breakdown. Dirt acts as
an insulating blanket, preventing efficient heat dissipation. Dirt also provides an
electrical conduction path that can cause an instrument failure, especially under
high-humidity conditions.
CAUTION. Avoid the use of chemical cleaning agents that might damage the
plastics used in this instrument. Use only deionized water when cleaning the
menu buttons or front-panel buttons. Use a ethyl alcohol solution as a cleaner
and rinse with deionized water. Before using any other type of cleaner, consult
your Tektronix Service Center or representative.
Avoid the use of high-pressure compressed air when cleaning dust from the
interior of this instrument. High-pressure air can cause Electrostatic Discharge
(ESD). Instead, use low-pressure compressed air (about 9 psi).
Using Table C-2 as a guide, inspect the outside of the instrument for damage,
wear, and missing parts. You should thoroughly check instruments that appear to
have been dropped or otherwise abused to verify correct operation and perfor-
mance. Immediately repair defects that could cause personal injury or lead to
further damage to the instrument.
Inspect for
Cracks, scratches, deformations, damaged
hardware or gaskets
Missing, damaged, or loose knobs
Broken shells, cracked insulation, and
deformed contacts. Dirt in connectors
Correct operation
Missing items or parts of items, bent pins,
broken or frayed cables, and damaged
connectors
0011
11
0001
0011
100001 110
000000 011110
Repair action
Replace defective module
Repair or replace missing or defective knobs
Replace defective modules. Clear or wash out
dirt
Replace defective module
Replace damaged or missing items, frayed
cables, and defective modules
DG2040 Data Generator
10
0000
000
011111
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