Maintenance
TDS5000B Series Service Manual
6-5
Table 6- 2: Internal inspection check list (Cont.)
Item Repair actionInspect for
Wiring and cables Loose plugs or connect ors.
Burned, broken, or frayed wiring.
Firmly seat connec tors. Repair or
replace modules with defective
wires or cables.
Chassis Dents, deformations, and dam-
aged hardware.
Straighten, repair, or replace
defective hardware.
Cleaning Procedure — Interior. To clean the oscilloscope interior, do the following
steps:
1. Blow off dust with dry, low-pressure, deionized air (approximately 9 psi).
2. Remove any remaining dust with a lint-free cloth dampened in isopropyl
alcohol (75% solution) and rinse wi t h warm deionized water. (A cotton-
tipped applicator is useful for cleaning in narrow spaces and on circuit
boards.)
STOP. If, after doing steps 1 and 2, a module is clean upon inspection, skip the
remaining steps.
3. If steps 1 and 2 do not remove all the dust or dirt, the oscilloscope may be
spray washed using a solution of 75% i sopropyl alcohol by doing steps 4
through 8.
4. Gain access to the parts to be cleaned by removing easily accessible shields
and panels (see Removal and Installation Procedures).
5. Spray wash dirty parts with the isopropyl alcohol and wait 60 seconds for the
majority of the alcohol to evaporate.
6. Use hot (120 "F to 140 "F) deionized water to thoroughly rinse them.
7. Dry all parts wit h low-pressure, deionized air.
8. Dry all components and assemblies in an oven or drying compartment usi ng
low-temperature (125 "F to 150 "F) circulating air.
Lubrication. There is no periodic lubrication required for this oscilloscope.
To Next Page
Loading...
Need help?
General
