TM-9-1200-215-34&P Technical Manual for M109 Automatic Fire Control System (AFCS) Download
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TM 9–1200–215–34&P SECTION II 7 8 9 10 11 12 13 14 16 19 22 21 18 20 1 2 3 4 5 6 6 17 5 6 15 Figure C4. Prognostic/Diagnostic Interface Unit (12554020), Cover , Access (12554022), Cover , Access (12562726) (Sheet 1 of 2)