TM 551510-220-10 6. Provide aircraft power to DCP by setting M- 130 POWER circuit breaker to ON position. 7. On DCP, press ARM lamp.  Lamp will illuminate.  Release ARM lamp.  Lamp will extinguish. 8. On DCP, set FLARE counter to 30 CHAFF COUNTER to 30 and MAN-PGRM switch to MAN position. 9. On DCP, set ARM-SAFE switch to ARM. ARM lamp will illuminate. NOTE When    the    test    set    is    installed    on    the dispenser    assembly    and    28    volts    DC aircraft    power    has    been    applied,    the sequencer     switch     inside     of     dispenser assembly  resets,  making  an  audible  sound as it rotates.  There will be no such sound if the  sequencer  switch  has  been  previously reset or if switch is in position 12 or 24. NOTE On   test   set,   TS   PWR   ON   lamp   (clear) illuminates and remains illuminated throughout  the  test  sequence  until  aircraft power  to  test  set  (via  test  set  power  cable) is disconnected or shut off. 10.   Set mission chaff program on EM. 11.   Perform the following operations on the M91 test set: a. Press  to  test  the  remaining  three  lamps  on  test  set. Each lamp will illuminate. NOTE Replace  any  lamp  that  does  not  illuminate when  pressed.    If  none  of  the  indicating lamps illuminate, return test set to AVUM. b. Rotate  TEST  SEQUENCE   switch clockwise to the next position, TS RESET.  No visual indication will occur. c. Rotate  TEST  SEQUENCE  switch  clockwise  to  SV SELF   TEST   position.   STRAY   VOLTAGE   lamp (red) will illuminate. d. Rotate  TEST  SEQUENCE  switch  clockwise  to  next position, TS RESET. STRAY VOLTAGE lamp (red) will extinguish. e. Rotate  TEST  SEQUENCE  switch  clockwise  to  next position,  STRAY  VOLT.  STRAY  VOLTAGE  lamp (red) should not illuminate. f. Rotate  TEST  SEQUENCE  switch  clockwise  to  next position, SYS NOT RESET. SYS NOT RESET lamp (amber) should not illuminate.  If lamp illuminates, press    and    release    MANUAL    SYSTEM    RESET switch   and   SYS   NOT   RESET   lamp   should   then extinguish. NOTE When   the   MANUAL   SYSTEM   RESET switch is pressed and released, and 28 volts DC power has been applied, the sequencer switch inside the dispenser assembly resets, making  an  audible  sound  as  it  rotates.    If the  sequencer  switch  has  been  previously reset or if the switch is in position 12 or 24, there will be no such sound. g. Rotate  TEST  SEQUENCE  switch  clockwise  to  next position, DISP COMP. 12.   Press FLARE DISP switch once.  For each depressing, the FLARE counter on DCP should count down in groups of three. 13.   On DCP, raise RIPPLE FIRE switch guard and set toggle switch to up position until FLARE counter counts down to 00.  Return switch guard to down position.  On DCP, reset FLARE counter back to 30. DISPENSER COMPLETE lamp (green) on test set will illuminate. 14.   Perform the following operations on the M91 test set: a. Rotate TEST SEQUENCE switch counter- clockwise to SYS NOT RESET position. SYS NOT RESET lamp (amber) will illuminate.  DISPENSER COMPLETE lamp (green) will remain illuminated. b. Press and release MANUAL SYSTEM RESET switch.  SYS NOT RESET lamp (amber) will extinguish. 4-6