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 ] AUTHOR:            ]                             ] DR:              ]
 ]  MIKE BEIMS        ]    PASS PROGRAM NOTE        ]      55241       ]
 ]____________________]                             ]__________________]
 ] ORG/PHONE:         ] OPS NOTE ( )  USER NOTE (X) ] DATE:  11/25/85  ]
 ]  IBM/282-8662      ]      RELEASE NOTE( )        ] REV C: 06/15/92  ]
 ]____________________]_____________________________]__________________]
 ] OI/FLIGHT EFFECTIVITY:        ]  USER AFFECTED:                     ]
 ] STS-61B AND SUBS              ]  CREW (X)  GROUND ( )  DUMP ONLY ( )]
 ]_______________________________]_____________________________________]
 ]        MAJOR SOFTWARE AREA:       ] OPS MODES AFFECTED:             ]
 ]SSW ( )  GNC (X)  VU ( )  SM/PL ( )]  G1, G2, G3                     ]
 ]_____________________________________________________________________]
 ] SOFTWARE SUB-AREA: OMS, SPEC                                        ]
 ]_____________________________________________________________________]
 ] PRINCIPAL FUNCTIONS: 4.64, 4.92                                     ]
 ]_____________________________________________________________________]
 ] TITLE:                                                              ]
 ]       INEFFECTIVE OMS ACTUATOR ZAP COMMANDS                         ]
 ]_____________________________________________________________________]
 ] DESCRIPTION:                                                        ]
 ]                                                                     ]
 ]   G104-106, G202, G301-303                                          ]
 ]      WHENEVER ANY OF ITEMS 28 - 31 IS ENTERED ON THE XXXXX          ]
 ]      MNVR YYYYY DISPLAY, THE OMS TVC CMD SOP IS SIGNALLED TO        ]
 ]      ISSUE A NEW CHANNEL SELECT COMMAND AND A "ZAP" COMMAND         ]
 ]      TO THE ACTUATOR HARDWARE.  CHANNEL SELECTION IS PERFORMED      ]
 ]      AT 1.04 HZ, WHILE THE ZAP COMMAND IS PROCESSED AT 12.5 HZ.     ]
 ]      THEREFORE, THERE IS AN 11-OUT-OF-12 CHANCE THAT THE ZAP        ]
 ]      COMMAND WILL BE ISSUED BEFORE THE NEWLY-SELECTED ACTUATOR      ]
 ]      CHANNEL IS POWERED UP.  IF THE FORMERLY-SELECTED ACTUATOR      ]
 ]      CHANNEL IS FAILED, THE ACTUATOR WILL NOT RESPOND TO THE        ]
 ]      ZAP COMMAND.                                                   ]
 ]                                                                     ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]USER RESPONSE:                                                       ]
 ]                                                                     ]
 ]      IF THE ZAP COMMAND IS NECESSARY, RE-EXECUTE THE SAME           ]
 ]      ITEM ENTRY.  THIS WILL FORCE A SECOND ZAP COMMAND TO BE        ]
 ]      ISSUED; THE ACTUATOR WILL RECEIVE IT OVER THE NEWLY-           ]
 ]      SELECTED CHANNEL.                                              ]
 ]                                                                     ]
 ]      PROCEDURALLY, THIS ITEM ENTRY IS EXECUTED TWICE BY THE CREW.   ]
 ]                                                                     ]
 ]                                                                     ]
 ]_____________________________________________________________________]
 ]CONCURRENCE:                           ]APPROVAL:                    ]
 ]IBM:  JEAN L. ZOPHY       DATE 07/14/92]                             ]
 ]    --------------------      ---------]                             ]
 ]FDSD:  ROBERT N. HINSON   DATE 07/20/92]                             ]
 ]     -------------------      ---------] DARRELL E. STAMPER 07/30/92 ]
 ]PF MGR:   RICK LOFFI      DATE 07/27/92]------------------- -------- ]
 ]       -----------------      ---------] CHAIRMAN, SASCB      DATE   ]
 ]_______________________________________]_____________________________]
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