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WFM 90 and WFM 91 Service Manual
xv
Introduction
Service Strategy
NOTE. Throughout this manual, any field-replaceable component, assembly, or
part of this oscilloscope is referred to generically as a module.
This manual contains all the information needed for periodic maintenance of the
WFM90 or WFM91 Handheld Waveform, Vector, Picture, and Audio Monitor.
(Examples of such information are procedures for checking performance and for
readjustment.) Further, it contains all information for corrective maintenance
down to the module level. The procedures, diagrams, and other troubleshooting
aids help isolate failures to a specific module, rather than to components of that
module. Once a failure is isolated, replace the module with a unit obtained from
Tektronix, Inc.
All modules are listed in Mechanical Parts List. To isolate a failure to a module,
use the troubleshooting procedures located in Maintenance. To remove and
replace any failed module, follow the removal and replacement instructions
located in Maintenance.
Service Offerings
Tektronix provides service to cover repair under warranty as well as other
services that may provide a cost-effective answer to your service needs.
Whether providing warranty repair service or any of the other services listed
below, Tektronix service technicians, trained on Tektronix products, are best
equipped to service your instrument. Tektronix technicians are apprised of the
latest information on improvements to the product as well as the latest new
options to the product.
Tektronix warrants this product for one year from date of purchase. (The
warranty appears after the title page and copyright page in this manual.)
Tektronix technicians provide warranty service at most Tektronix service
locations worldwide. Your Tektronix product catalog lists all service locations
worldwide.
Warranty Repair Service