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 1–9 b. The Display Unit (DU) is comprised of an aluminum casting electronic housing enclosure with handle, electroluminescent panel, switch panel, electrical connector, and internal wiring harness. The location of these components is shown in the following illustration: LEGEND: (1) ELECTROLUMINESCENT PANEL (2) BOTTOM COVER (3) EMI GASKET (4) SWITCH PANEL (5) ELECTRICAL CONNECTOR (6) INTERNAL WIRING HARNESS (7) ELECTRONIC HOUSING 1 2 3 4 5 7 6 6