Tektronix Digital Storage Oscilloscope TDS2012C

Gather cleaning materials (distilled water or 75% isopropyl alcohol solution, soft wipes)

Moisten the wipe with distilled water or 75% isopropyl alcohol solution if the display is very dirty

Gently rub the display surface with the moistened wipe

Check for any damage on the plastic display surface

Refer to the Removal Procedures to access the inside of the oscilloscope.

Inspection of Internal Components

Inspect circuit boards for the following issues

Inspect resistors for the following issues

Inspect solder connections for the following issues

Inspect capacitors for the following issues

Inspect wiring and cables for the following issues

Inspect chassis for the following issues

Warm up the oscilloscope for at least ten minutes in an ambient temperature between 20 °C and 30 °C

Push the Factory Cal option button

Push the Warmup Timer option button

Push the Start Timer option button to allow a 10-minute warmup

Ensure no chemical cleaning agents are used

Prepare deionized water for cleaning

Prepare 75% isopropyl alcohol solution

Clean exterior surfaces with a dry lint-free cloth or soft-bristle brush

Is there any dirt remaining after initial cleaning?

Use a cloth or swab dipped in 75% isopropyl alcohol solution for remaining dirt

Use a swab to clean narrow spaces around controls and connectors

Repair or replace defective module

Repair or replace missing or defective knobs

Repair or replace defective modules