Diagnosis of Malfunctions in Complex Electronic Assemblies. Final Report. Page: 14 of 66
This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
This work was conducted to define and develop methods to assure rapid,
accurate, and economical isolation of faults in complex electronic assem-
blies being manufactured on the production line. The project work plan
was divided into two phases. The objective of Phase 1 was to define and
develop methods to assure an adequate skill level and to develop effective
means of communicating engineering diagnostic-support information to the
troubleshooter. The objectives of Phase 2 were to define the type of diag-
nosis and to develop diagnostic procedures for difficult troubleshooting
The results of diagnostic skill studies conducted during Phase 1 work
indicated the following.
" With adequate engineering support and proper equipment most diagno-
stic work can be performed with skills lower than engineering level.
However, the technical requirements are high enough to require rigid
screening of technicians.
" Familiarization and upgrading programs, rigid screening procedures,
and technical supervision are required to cope with the increasing
complexity of telemetry assemblies.
* Screening methods should include testing, on the job evaluation, and a
nominal educational requirement to assure adequate troubleshooter
" The troubleshooting classification must be compatible with other plant
classifications which employ electronic technicians to assure qualified
applicants for future positions in the classification.
The Phase-1 evaluation showed that the translation of engineering technical
information and product function definitions to the troubleshooter level was
a critical dimension in the fault finding system.
A set of prototype manuals to communicate this type of information to the
troubleshooter was developed and was evaluated later on the production line.
These manuals conveyed such information as theory of circuit operation and
design intent, individual schematics, typical voltages and waveforms,
resistance charts, integrated circuit schematics, electrical terminal
designations, and a pictorial physical definition of the unit, including a
cross reference arrangement that quickly locates components on the part
by schematic designation. As a result of the evaluation, production manuals
are now in use on some of the current programs. In-plant engineering
support technicians are also using these manuals for work in telemetry
Here’s what’s next.
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Losure, J. A. Diagnosis of Malfunctions in Complex Electronic Assemblies. Final Report., report, January 1, 1971; Kansas City, Missouri. (https://digital.library.unt.edu/ark:/67531/metadc1031893/m1/14/: accessed March 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.