Tektronix TBS1000C Series, Руководство по обслуживанию

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3. If steps
1 on page 13 and 2 on page 13 do not remove all the dust or dirt, all modules in the oscilloscope except the Display Module and
Front Panel Module may be spray washed using a solution of 75% isopropyl alcohol.
• During cleaning of the Acquisition board (Main board), make sure that no residue is left in the attenuators. Debris or residue can
cause several problems with signal fidelity that cannot be corrected by calibration. When handling the board, avoid handling the
attenuators since skin oils may cause problems.
• Extensive cleaning of the Display Module is difficult because water must not be trapped between the display shield and the display.
The polarizers integrated into the display degrade with long-term exposure to water. The display shield and display must be
replaced as an assembly if significant moisture or debris become trapped inside. Cotton tipped applicators and lint-free rags
moistened in isopropyl alcohol and/or deionized water offer the best cleaning with the least opportunity for damage to the
assembly.
• The Front-Panel module can be damaged by deposition of film or debris inside the knob encoders. To avoid this, be careful not to
drip liquid or blow debris into the encoders.
4. Spray wash dirty parts with the 75% isopropyl alcohol solution and wait 60 seconds for the majority of the alcohol to evaporate.
5. Use hot (49 °C to 60 °C / 120 °F to 140 °F) deionized water to thoroughly rinse the parts.
6. Dry all parts with low-pressure, deionized air.
7. Dry all components and assemblies in an oven or drying compartment using low-temperature (52 °C to 66 °C / 125 °F to 150 °F)
circulating air.
Lubrication
Periodic lubrication is not required for the oscilloscope.
Maintenance
TBS1000C Series Digital Storage Oscilloscope Service Manual 14