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 23 24 23 25 26 28 27 29 18 38 37 36 31 18 30 18 33 1 32 34 35 6 5 Figure C4. Prognostic/Diagnostic Interface Unit (12554020), Cover , Access (12554022), Cover , Access (12562726) (Sheet 2 of 2)