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4-1-35.  Displayed System Faults
4-1-37.  Adjustment  of  Barometric  Altitude,  Pitch, and Roll.

TM-1-1520-240-10 Army CH-47D Heilcopter (EIC:RCD) Manual
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TM  1-1520-240-10 4-1-24            Figure  4-1-10.  Symbol Generator Test Mode 4-1-36.  Programming Procedures. NOTE The programming procedure for the pilot and copilot is identical except for the location of controls on the CCU. 1.   Select    mode    to    be    programmed    (1N through 4N). The first mode that will appear is “1N” (Normal Mode 1). 2.   P-PGM/CP-PGM/OPR switch — P-PGM or CP-PGM. 3.   ”PROG” blinking in display — Check. Verify that  a  complete  set  of  symbology  is  dis- played  and  attitude  reference  symbol  is blinking.  Verify  “PGM”  is  displayed  in  the HUD FAIL message location for the DU not being programmed. 4.   BIT/ACK switch — ACK to program the full display or go to step 5 and select desired symbols. 5.   PGM  SEL/NXT  control  —  SEL  to  select symbol. Selected symbol stops blinking. If symbol is not desired, toggle switch to NXT and the symbol will disappear. NOTE All symbols have been programmed when the “PROG” annunciator is the only symbol flash- ing. 6.   BIT/ACK  switch  —  ACK.  (Hold  switch  to ACK for one second.) 7.   ”OK”  displayed  —  Check.  (”OK”  will  be displayed for two seconds.) NOTE If programming is not accepted, “FAIL” will be displayed. If a fail message is displayed, at- tempt to reprogram the same mode, if fail re- appears notify maintenance. Declutter  mode  is  recognized  by  flashing ground speed indicator in lieu of attitude refer- ence symbology.







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