TM  1-1520-240-10 4-1-8            WARNING The system requires a 10-minute warm-up prior  to  operation.  To  ensure  automatic system operation when required, be sure the set is operational and all caution and indicator  lights  are  out  prior  to entering hostile areas. (2) POWER control switch – ON (3) Warm-up light – ON, allow 10 minutes for warm-up. At the end of warm-up period, the warm-up light will be shut off. b. ECM operation. (1) Status switch — Push for standby operation or release to commence automatic protection. (2) CM JAM caution light — Check OUT. (3) CM INOP caution light — Check OUT. If cau- tion light is on, the set has malfunctioned and the helicop- ter is without countermeasure protection. (4) STATUS switch – Push for standby operation when  countermeasures  protection  temporarily  is  not  re- quired  and/or  accidental  flare  launch  is  a  danger  (LZ/PZ operations). (5) POWER  switch  –  OFF  when  countermea- sures protection is no longer required (EOM). WARNING If  countermeasures  set  has  been  off  for less than 5 minutes and further operation is  required,  the  warm–up  indicator  light may go out immediately (or within some interval  less  than  the  normal  10  minute warmup period) after the power switch is set to on. If this occurs, it is mandatory that the system be operated in STBY for at least 1 minute. Failure to observe this re- quirement   can   result   in   a   false   alarm (launch) and/or transmitting frequency in- stability resulting in interference with oth- er countermeasures sets. 4-1-8.  Flare Dispenser M-130. The Flare Dispenser M-130 (fig. 4-1-6) will dispense up to 30 decoy flares as a countermeasure to infrared seek- ing missiles. The externally mounted dispenser is con- trolled by a DISP CONT control panel on the console and six firing switches. Two cockpit firing switches are pro- vided, one on each pilot’s control stick grip. Four hand- held crewmember firing switches are installed in the cab- in area. Flares can also be automatically fired by firing commands from the countermeasure set (AN/ALQ-156) if the set detects a missile approach. A timer in the cabin provides a 2.5 second delay between firing pulses re- gardless of firing switch position. A ground safety relay, controlled by a landing gear proximity and a safety pin manually  installed  into  the  dispenser,  prevents  firing flares when the helicopter is on the ground. The system is  powered  by  the  No.  1  DC  bus  through  the  CHAFF circuit breaker on the No. 1 PDP. NOTE Although  the  control  panel,  dispenser,  and circuit breaker are marked CHAFF or have CHAFF (C) selector positions, chaff cannot be dispensed at this installation. 4-1-9.  Dispenser Control Panel. The DISP CONT panel is installed in the center console. The panel contains the ARM SAFE switch, ARM indicator light, RIPPLE FIRE switch, FLARE counter, and counter setting knob. The panel also includes a MAN-PGRM switch and CHAFF counter, which are not used in this installation. 4-1-10.  Dispenser Status Panel. The dispenser status panel (fig. 4-1-6) provides an indication of safety relay operation and system arming. It also allows the landing gear safety switch to be bypassed for ground testing of the dispenser system. The panel is on the left side of the cabin at sta 534. 4-1-11.  Controls and Function, Flare Dispenser Sys- tem (M-130)  (fig. 4-1-6) CONTROLS/ INDICATOR FUNCTION ARM/SAFE Switch At SAFE, the system is not powered. At ARM, the sys- tem is powered, provided the safety pin is removed from the electronic module and the ground safety relay is energized. (Helicopter air- borne or remote bypass switch on remote test panel is at BYPASS.)