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 2–37 2–21. SERIAL I/O PORT CABLE, VGA CABLE, SCSI RIBBON CABLE MAINTENANCE INSTRUCTIONS CONTINUED a. REMOVAL CONTINUED 2. Remove ACU connector panel (1) by removing 16 screws (2) and 16 flat washers (3). Lift connector panel off housing. CAUTION The EMI shielding gasket is vital to this piece of equipment and is easily damaged. Handle with care when removing or replacing it. Failure to comply may result in damage to equipment. 3. Inspect EMI shielding gasket (4) in groove in housing (5) for cuts, nicks, or signs of stretching. Discard EMI shielding gasket if unserviceable. 4. Remove insulating block (6) by removing three screws (7), three lockwashers (8), and three flat washers (9) if the Serial I/O Port Cable (10) or VGA Cable (11) is being removed. Discard lockwashers. 5. Remove insulating block (12) by removing three screws (13), three lockwashers (14), and three flat washers (15) if the SCSI Cable (16) is being removed. NOTE • The removal of the Serial I/O Port, VGA and SCSI cable connectors is performed in the same manner. • When removing the SCSI cable connector, disconnect the SCSI cable from the TCIM CCA as well as from the CPU CCA. 6. Disconnect ribbon cable (10, 11, or 16) from back of CPU CCA (17). 7. If necessary to replace Serial I/O or VGA connector cap and strap, remove screw (18), lockwasher (19), and flat washer (20) securing retaining straps (21, 22, and 23) to ACU. Discard lockwasher . 8. Remove connector cap (24 or 25). 9. If necessary to replace SCSI connector cap and strap, remove screw (26), lockwasher (27), and flat washer (28) securing straps (29 and 30) to ACU. Discard lockwasher. 1 2 3 6 9 8 7 10 5 11 17 13 14 15 12 16 4 24 21 22 18 19 20 23 27 28 30 25 26 29