MIL-DTL-24784/12B(SH)
1.
Signal levels or bistable states utilized by the equipment; that is, true (1) and false (0),
and their relative voltage levels.
2.
Interpretation of the word-code bit structure; that is, address, instruction, or data bit
codes.
3.
Signals, identified by their operational accomplishment.
b.
Overall and functional block diagrams and descriptions in MIL-DTL-24784.
c.
Logic principles shall be described beginning with an introduction to the basic digital logic
symbology used in the manual. Each logic function shall be described and supported by
Boolean equations, truth tables, simplified logic diagrams, and timing diagrams.
d.
Functional description of power distribution, power supplies, and regulators shall conform to
3.6.4.1c.
3.6.5 Chapter 4, Scheduled maintenance. It is intended that the engineering effort required to
develop preventive maintenance data be expended only once and that the data, where applicable
be used both in this chapter and in Logistic Support Analysis (LSA) or maintenance requirements
cards (MRC) where one or more of the latter three data items are required by the contract.(see
6.2). The preparation of this chapter of the manual should therefore be delayed until completion
of the LSA or MRC; submissions of the manual draft copy for review should be marked "TO BE
SUPPLIED UPON COMPLETION OF LSA". When the approved LSA or MRC data is
available, it shall be included in the manual in the identical technical content and, wherever
practicable, in the identical format. When included in the manual, such LSA or MRC data shall be
integrated with other technical data required by this specification to be in this chapter. The
manual as delivered shall reflect the detailed maintenance requirements of the completed MRCs.
This chapter shall contain preventive maintenance procedures and performance test instructions to
be accomplished on a scheduled or condition monitoring basis. When an MRC or a reference
standards book is available or prepared under the same contract, this information may be
duplicated in the technical manual without change in format. These procedures shall be correlated
with the installation checkout requirements of 3.6.9.9 such that any maintenance or performance
test procedure also required for checkout may be properly referenced from Chapter 8,
Installation.
3.6.5.1 Introduction. The introduction shall be an explanation of the purpose, scope, and
arrangement of the scheduled maintenance data. When a preventive maintenance procedure is
critical to the operation of the equipment and the schedule for servicing is absolute (not just
recommended), this information shall be conspicuously written as a caution. The following
applicability statement shall be included:
"The scheduled maintenance instructions in this manual are intended to duplicate those
furnished in the Planned Maintenance Systems (PMS). In case of conflicts, the PMS
documentation takes precedence. Such conflicts should be reported immediately on the
user comment sheet in accordance with the TMDER procedures for this manual."
3.6.5.2 Scheduled maintenance action index. This index shall include all scheduled performance
procedures. The index shall be tests and preventive maintenance tabulated as follows:
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