Section Six: Diagnostic Flowcharts; Replacement Procedures; Handling Of Integrated Circuits - Atari 520STE Field Service Manual

SECTION SIX: DIAGNOSTIC FLOW CHARTS
This section summarizes in diagrammatic form the steps taken in troubleshooting the STE
using the diagnostic cartridge. The details of using the cartridge are not shown; this shows
the context in which the cartridge would be used, including some problems for which the
cartridge would not be useful. Usage of the cartridge is covered in the troubleshooting guide.
In general, the user would run all tests, look up errors in the troubleshooting guide, and take
the action recommended.
Although a thorough understanding of the system may be necessary in solving some
problems, in most cases following the flowchart, reading the documentation on the
diagnostic cartridge where necessary, and swapping out the indicated component(s) will
result in repair of the problem.

6.1 REPLACEMENT PROCEDURES

Where replacement is indicated, replace the component (if more than one is indicated,
replace one at a time) with a known good part. If other components are later replaced, verify
whether the first part is good by replacing it in the system once the system has been
repaired.

6.2 HANDLING OF INTEGRATED CIRCUITS

Warning. Extreme care should be taken when handling the integrated circuit chips. They are
very sensitive to static electricity and can easily be damaged by careless handling. Keep
chips in their plastic carriers or on conductive foam when not in use. The operator handling
such components should wear a properly grounded ground strap and work on a properly
grounded conductive surface.
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