R (7) Do the pressure refuel with auto control.
R (8) If the fault continues:
R (a) Set the MCDU to INPUT PARAMETERS page 3, (the bit position -R state cross-reference).
R (b) Examine the bit positions in the Table 1 that follows:
R NOTE : Not all the refuel signals are monitored by the FQIC to be
____ R shown on the INPUT PARAMETERS page 3. R The signals that are not shown on the INPUT PARAMETERS are R identified in Table 2 with the Para number given for R direct entry into the Trouble-shooting task.
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May 01/04 CESR Table 1, Bit position - State Cross-reference R -----------------------------------------------------------------------------R | Bit | Bit indication | FQIC pin | Input/Output | Para| R |position| (active state) | allocation | Voltage Level | No | R |--------|---------------------------------|------------|---------------|-----| R | J2 | Battery power | C08H I/P | Ground | (15)| R | K2 | Cockpit Preselector Fault | C07C I/P | Open circuit | (19)| R | H2 | Refuel door open | C08C I/P | Ground | (23)| R | A2 | Cockpit refuel selected | C07E I/P | 28VDC | (27)| R | P2 | Cockpit preselector decrement | C05C I/P | Ground | (31)| R | L2 | Refuel Panel Presel Fault | C07H I/P | Open circuit | (34)| R | E2 | Refuel selected | C08E I/P | 28VDC | (38)| R | N2 | Cockpit preselector increment | C05D I/P | Ground | (42)| R | M2 | Refuel Indicator Fault | C07G I/P | Open circuit | (45)| R | R2 | Refuel preselector decrement | C04J I/P | Ground | (49)| R | D2 | Refuel bus powered | C09E I/P | 28VDC | (52)| R | Q2 | Refuel preselector increment | C04K I/P | Ground | (56)| R | | | | | | R -----------------------------------------------------------------------------
R NOTE : If an above signal is not correct, (a 1 not shown), refer
____ R to the Para. shown in the end column.
R NOTE : The preselector(s) INC/DEC switch input to the FQIC will
____ R only show a 1 while the INC/DEC switch is held in that R position. Not at the central/rest position.
R Table 2, Refuel signals not shown on the INPUT PARAMETERS page 3 R -----------------------------------------------------------------------------R | Signal | FQIC pin | Voltage Level | Para | R | | allocation | (active state)| No | R |---------------------------------------|------------|---------------|--------| R | Aircraft Ground/Flight (GND/FLT) | B05F I/P | Ground (GND) | (9)(a) | R | Right refuel valve supplied | C08B I/P | 28VDC | (59) | R | Left refuel valve supplied | C08A I/P | 28VDC | (63) | R | Center refuel valve supplied | C09B I/P | 28VDC | (67) | R | Right refuel valve return | C08J O/P | 28VDC | (71) | R | Left refuel valve return | C08K O/P | 28VDC | (74) | R | Center refuel valve return | C09J O/P | 28VDC | (77) | R | | | | | R -----------------------------------------------------------------------------
R (9) For the automatic refuel mode to be active check the conditions that R follow in conjunction with the Table 1 above or as directed:
R (a) The ground/flight discrete input is set to ground:
R 1_ Remove the FQIC (3QT) from its rack connector (Ref. AMM TASKR 28-42-34-000-001).
R 2_ With a multimeter check to see if the FQIC rack connect pinR B05F is at ground potential.
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May 01/04 CES
R 3_ If pin B05F is at ground potential reinstall the FQIC (Ref.
R AMM TASK 28-42-34-400-001).
R 4_ If the pin B05F is not at ground potential do a wiring check
R of the:
R - aircraft wiring between the FQIC (3QT) rack connector pin
R B05F and MSW-REFUEL.DEFUEL CTL DOOR POSITION (20QU), (Ref.
R ASM 28-42/03).
R - aircraft wiring between the FQIC (3QT) rack connector pin
R B05F and RELAY-L/G POSITION, SYS 1 (11GB), (Ref. ASM 28-R 42/03).
R 5_ Repair all wiring and connectors.
R 6_ Reinstall the FQIC (3QT) (Ref. AMM TASK 28-42-34-400-001).
R (b) The refuel selected discrete is active. The logic for this,
R incorporated in the aircraft wiring, is condition 1_ or 2_ below:
R 1_ Refuel panel door open and the MODE SELECT switch on the
R external refuel panel set to REFUEL.
R 2_ The cockpit refuel panel power switch set to on, and the
R cockpit refuel panel CTL (Control) switch set to on.
R (c) All the REFUEL VALVE switches are set to NORMAL.
R (10) For an automatic refuel to start make that the conditions are as
R follows:
R (a) Refuel bus power has been present for sufficient time to allow
R the high level sensors to settle in thier true states.
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