TM5-1260-206-34
Section III.
PREVENTIVE MAINTENANCE CHECKS
AND SERVICES (PMCS)
2-8. PREVENTIVE MAINTENANCE PROCEDURES-No PMCS requirements are
assigned to DS/GS levels. Detailed procedures for all PMCS's are given in TM5-1260-206-12,
Operator and Organizational Maintenance Manual for Analytical Photogrammetric
Positioning System AN/UYK-48.
Section IV.
TROUBLESHOOTING
2-9. GENERAL - This section provides procedures that allow DS/GS maintenance
personnel to troubleshoot the APPS system. When a malfunction is isolated
to a major unit (DAC, OMS, etc.), refer to the Symptom Index of the appli-
cable chapter. Troubleshooting procedures for the Calculator are given in
TM-11-6660-263-24-2, Organizational, Direct Support, and General Support
Maintenance Manual for HP9825A Calculator, CP-1387/U.
2-10. SYMPTOM INDEX - Table 2-6 is a symptom index for common malfunctions of
the APPS. Each symptom references an applicable troubleshooting procedure
for further fault isolation.
2-11. TROUBLESHOOTING PROCEDURES - Troubleshooting the APPS consists of
isolating the malfunction to a specific unit. Reference is then made to
chapters 3 through 7 for detailed : troubleshooting procedures for each unit
to the assembly or component level. Table 2-7 lists troubleshooting procedures
for the APPS. If a malfunction is not listed or is not corrected by the pro-
cedures given in the table, refer to the DAC functional block diagrams (FO-3
2-22
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