
WFM 90 and WFM 91 Service Manual xiii
PrefaceThis manual provides instructions for servicing the WFM 90 and WFM 91
Handheld Waveform, Vector, Picture, and Audio Monitors. This manual
describes features and specifications that are common to all generator modules.
These include system configuration and the common control interface.
About This Manual
This manual is composed of the following sections:
HSpecifications lists the electrical and environmental specifications and
provides a general product description.
HOperating Information describes installation and front panel operation of the
instrument.
HTheory of Operation contains a module-level description based on block
diagrams of the instrument circuitry.
HPerformance Verification provides procedures for verifying instrument
performance.
HAdjustment Procedures provides procedures for adjusting the instrument to
meet performance levels listed in Specifications.
HMaintenance contains instructions for cleaning the instrument, procedures
for removal and replacement of instrument modules, and troubleshooting
procedures.
HOptions lists all of the options that you might find on your instrument.
HReplaceable Electrical Parts points you to Replaceable Mechanical Parts
for the list of replaceable electrical parts and assemblies.
HDiagrams contains the instrument interconnect diagram.
HReplaceable Mechanical Parts lists the part numbers of the replaceable
electrical and mechanical parts and assemblies.
Related Manuals
The WFM 90 and WFM 91 Handheld Waveform, Vector, Picture, and Audio
Monitor User Manual (Tektronix part number 070-8968-XX) describes in detail
how to operate the instrument.