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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 4–16 4–17. DC–DC CONVERTER (POWER SUPPL Y) (PS1) CONTINUED b. INSTALLATION CAUTION ESD SENSITIVE • The PDIU contains ESD sensitive components. Wear a protective ESD wrist strap whenever handling components. Failure to comply may result in damage to equipment. • Damage to RFI/EMI contact strip may occur. Do not slide cover off of housing. Pick cover straight up. 1. Attach ESD grounding strap to wrist and ground to ensure ESD protection. 2. Carefully position replacement power supply (3) in housing (4). Note orientation of connectors PS1–J1 (8) and PS1–J2 (9). 3. Move power supply (3), left and then right, to connector P1 (6) to PS1–J1 (8) and P2 (7) to PS1–J2 (9). Tighten connector captive screws (5) respectively. 4. Apply thread compound to threads of six cap screws (1). 5. Install six flat washers (2) and six cap screws (1). 6. Install top and bottom covers in accordance with procedure outlined in paragraph 4–13. 1 6 5 5 5 7 9 2 4 3 8 5