TM 1-1510-223-10 4-10           Change 3 WARNING If there is an indication that a misfire occurred, notify emergency ordinance disposal personnel for disposition and disposal. 3.   Remove module from dispenser assembly by unscrewing  two  stud  bolts  with  a  5/32-inch hexagonal wrench and slide dispenser assem- bly out. 4.   Remove retaining plate from payload module by unscrewing two retaining bolts. 5.   Remove expended and unexpended impulse cartridges and flares (or chaff) from payload module. 6.   Repack unexpended items in original contain- ers and return to stores. NOTE Cracking of the chaff cartridge case upon firing is not unusual. This does not effect performance of the item and should not be reported as a mal- function. 4-5. RADAR     SIGNAL     DETECTING     SET     (AN/ APR-39(V)1). CAUTION To prevent damage to the receiver detector crys- tals, assure that the AN/APR-39(V)1 antennas are at least 60 meters from active ground radar antennas or 6 meters from active airborne radar antennas. Allow an extra margin for new, unusu- al, or high power antennas. The radar signal detecting set indicates the relative position of search radar stations. The radar signal detect- ing  set  is  controlled  through  the  aircraft  survivability equipment/avionics  control  system  (ASE/ACS).  Audio warning signals are applied to the pilot’s and copilot’s headsets. The radar signal detecting set is protected by the 7.5 ampere circuit breaker placarded APR39, located on the mission control panel (fig. 4-1). The associated antennas are shown in figure 2-1. For operating instruc- tions, refer to  TM 11-5841-283-20. 4-6. RADAR     SIGNAL     DETECTING     SET     (AN/ APR-39(V)2). CAUTION To prevent damage to the receiver detector crys- tals, assure that the AN/APR-39(V)2 antennas are at least 60 meters from active ground radar antennas or 6 meters from active airborne radar antennas. Allow an extra margin for new, unusu- al, or high power antennas. The radar signal detecting set indicates the relative position   of   search   radar   emitters.   Through   graphic symbology, the type of tracking radar emitters may be identified.  Unknown  emitter  origins  are  also  depicted. Audio warning signals are applied to the pilot’s and copi- lot’s  headsets.  The  radar  signal  detecting  set  is  con- trolled through the aircraft survivability equipment/avionics control system (ASE/ACS). The ra- dar signal detecting set is protected by the 7.5-ampere circuit breaker placarded APR39, located on the mission control  panel  (fig.  4-1).  The  associated  antennas  are shown in figure 2-1. Complete operating instructions are to be obtained from the appropriate manuals. 4-7. DATA TRANSFER SYSTEM. The data transfer system allows the crew to retrieve mission  data  from  the  programmable  cartridge  and  to store mission data back to the programmable cartridge. Operation of the system is through the aircraft survivabil- ity equipment/avionics control system (ASE/ACS). De- pressing L1 when the UTILITY page is displayed will call up the DATA TRANSFER page. 4-8. AIRCRAFT SURVIVABILITY EQUIPMENT/ AVIONICS CONTROL SYSTEM (ASE/ACS). The aircraft survivability equipment/avionics control system  (ASE/ACS)  consists  of  a  multifunction  display (MFD, fig. 4-2), a keyboard unit (KU, fig. 4-3), and a re- mote terminal unit (RTU). The ASE/ACS is the primary way that the flight crew interfaces with the following sys- tems: UHF Transceiver (AN/ARC/164), (two each) VHF-FM (SINCGARS, AN/ARC-201A) Inertial Navigation System Global Positioning System Voice Security System (KY-58) Flare and Chaff Dispenser System (M-130)