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General Maintenance

This section contains the information needed to perform periodic and corrective

maintenance on the waveform rasterizer. The following subsections are included:

Preventing ESD — Gener al information on preventing damage by electrostatic

discharge.

Inspection and Cleaning — Information and procedures for inspecting and

cleaning the waveform rasterizer.

Troubleshooting — Information for isolating and troubleshooting failed

modules. Included are instructions for operating the waveform rasterizer

diagnost

ic routines and troubleshooting trees. Most of the trees make use of

the internal diagnostic routines to speed fault isolation to a module.

Repacka

ging Instructions — Information on returning a waveform rasterizer

for service.

Preventing ESD

Before servicing this product, read the Safety Summary and Introduction at the

front of the manual and the ESD information below.

CAUTION. Static discharge can damage any semiconductor component in the

waveform rasterizer.

When performing any service that requires internal ac cess to the waveform

rasterizer, adhere to the following precautions to avoid damaging internal modules

and their components due to electrostatic discharge (ESD).

1. Minimize handling o f static-sensitive circuit boards and components.

2. Transport and store static-sensitive modules in their static protected c ontainers

or on a metal rail. Label any package that contains static-sensitive boards.

3. Discharge the static voltage from your body by wearing a grounded antistatic

wrist strap while handling these modules. Do service of static-sensitive

modules only at a static-free work station.

4. Nothing capable of generating or holding a static charge should b e allowed

on the work station surface.

5. Handle c ircuit boards by the edges when possible.

6. Do not slide the circuit boards over any surface.

7. Avoid handling circuit boards in areas that have a ﬂoor or work-surface

covering capable of generating a static charge.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–1

Tektronix WVR6020 Service Manual

Other manuals for Tektronix WVR6020