Maintenance
TDS 340A, TDS 360 & TDS 380 Technical Reference
6–3
Table 6–1: External inspection check list
Item Inspect for Repair action
Cabinet, front panel, and cover Cracks, scratches, deformations, damaged
hardware or gaskets
Replace defective module
Front-panel knobs Missing, damaged, or loose knobs Repair or replace missing or defective knobs
Connectors Broken shells, cracked insulation, and
deformed contacts. Dirt in connectors
Replace defective modules. Clear or wash out
dirt
Carrying handle and cabinet feet Correct operation Replace defective module
Accessories Missing items or parts of items, bent pins,
broken or frayed cables, and damaged
connectors
Replace damaged or missing items, frayed
cables, and defective modules
WARNING. To avoid injury or death, unplug the power cord from line voltage
before cleaning the oscilloscope. To avoid getting moisture inside the oscillo-
scope during external cleaning, use only enough liquid to dampen the cloth
or applicator.
1. Remove loose dust on the outside of the oscilloscope with a lint free cloth.
2. Remove remaining dirt with a lint free cloth dampened in a general purpose
detergent-and-water solution. Do not use abrasive cleaners.
3. Clean the monitor screen with a lint-free cloth dampened with either isopro-
pyl alcohol or, preferably, a gentle, general purpose detergent-and-water
solution.
To access the inside of the oscilloscope for inspection and cleaning, refer to the
Removal and Replacement procedures in this section.
Inspect the internal portions of the oscilloscope for damage and wear, using
Table 6–2 as a guide. You should repair defects immediately.
If you replace any electrical module, perform the adjustment procedures,
beginning on page 5–1.
CAUTION. To prevent damage from electrical arcing, ensure that circuit boards
and components are dry before applying power to the oscilloscope.
Cleaning Procedure —
Exterior
Inspection — Interior
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