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 2–25 2–18. CPU CCA MAINTENANCE INSTRUCTIONS CONTINUED a. REMOVAL CONTINUED 3. Disconnect SCSI cable connector (5) from CPU CCA at J2 (6). CAUTION The connector panel assembly is attached by cables to internal components of ACU and cannot be moved very far from housing without putting strain on those cables. Exercise caution when removing bottom cover from ACU housing. Failure to comply may result in damage to equipment. 4. Remove ACU connector panel (7) by removing 16 screws (8) and 16 flat washers (9). Lift connector panel off housing (10). 5. Inspect EMI shielding gasket (11) in groove in housing (10) for cuts, nicks, or signs of stretching. Discard EMI shielding gasket if unserviceable. 6. Disconnect Ethernet cable connector (12) from CPU CCA (13). 7. Loosen two captive screws (14) and disconnect VGA cable connector (15) from CPU CCA. NOTE Do not remove spacer assembly from housing. It is custom made to ensure the CPU CCA is pressed firmly against heatsink. 8. Remove screw (16) and circuit board heatsink (17) from spacer assembly in ACU. 9. Remove screw (18) and flat washer (19) from holddown of CPU CCA. 5 7 8 9 6 17 16 11 10 12 14 15 19 18 13