Maintenance
TDS1000B and TDS2000B Series Oscilloscope Service Manual
6-- 5
STOP. If, after performing steps 1 and 2, a module is clean upon inspection, skip
steps 3, 4, and 5. Proceed with step 6.
3. If steps 1 and 2 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.
H During cleaning of the Acquisition board (main board), use care to
assure that no residue is left in the attenuators. Debris or residue can
cause a number of problems with signal fidelity that cannot be corrected
by calibration. When handling the board, avoid handling the attenuators
since skin oils may cause problems.
H 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.
H The Front Panel module can be damaged by deposition of film or debris
inside the knob encoders. To avoid this, care must be taken to not 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 _Cto60_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 _Cto66_C / 125 _F to 150 _F) circulating air.
Lubrication. Periodic lubrication is not required for the oscilloscope.
To Next Page
Loading...
Need help?
General
