TM 10-1670-296-20&P                                                    0005 00 0005 00-23 Table 1.  Preventive Maintenance Checks and Services – continued B – Before D – During A – After INTERVAL ITEM NO. B D A ITEM TO BE CHECKED   OR SERVICED EQUIPMENT NOT READY/ AVAILABLE IF: 34 Extraction Parachute Jettison System.  Check that all cables are securely connected. Blue LEDs on control box and blue LED on each Y-connector must light to indicate complete circuit. Blue LED lamp(s) must light to indicate the number of loads connected to the system. Check EPJD for squib-fired condition. Check that safety cap is installed on squib cable and squib cable is installed on squib.  Refer to WP 0043 00. Loose or damaged Connector. Circuit can not be completed Any load is not connected to the system properly Squib is fired. Safety cap and squib cable not installed on squib. CONTROL BOX Y CONNECTOR Y CONNECTOR Y CONNECTOR Y CONNECTOR 28 VDC POWER SUPPLY 115 VAC POWER CABLE POWER CABLE MAIN CABLE INTERCONNECT CABLE PLATFORM CABLE INITIATOR SIMULATOR INTERCONNECT CABLE INTERCONNECT CABLE PLATFORM CABLE INITIATOR SIMULATOR