(b) On the overhead panel, on the ELEC panel 35VU, make sure that the BAT1 pushbutton switch is pushed (the OFF legend is off).
R (c) Adjust the brightness of the MCDU screen.
R (d) On the MCDU, get the SYSTEM REPORT/TEST/ELEC page (Ref. AMM TASK 31-32-00-860-004).
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BAT1 - Ammeter Installation
Figure 201/TASK 24-38-00-991-001
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B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
**ON A/C 001-049, 051-061, 101-105, 201-203,
121VU ADIRS/ADIRU/3/28VDC 6FP3 N04
121VU CLOCK/STBY/SPLY 4FS N03
**ON A/C ALL
121VU APU/FIRE/EXTIG/SQUIB/A 1WF L38 121VU APU/FIRE/LP VALVE/STBY 3WF M41 121VU APU/FUEL/LP VALVE/CTL 1QF M40 121VU HYDRAULIC/PARK BRK/CTL/STBY 71GG N37 121VU HYDRAULIC/RAT/SPLY/EXTN/SOL1 2803GE P33 121VU ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A 1WE1 Q43
R **ON A/C 062-099, 106-149, 151-199, 204-299, 301-399, 401-499,
121VU ADIRS/ADIRU/3/28VDC 6FP3 N03
121VU CLOCK/STBY/SPLY 4FS N02
**ON A/C ALL
122VU FLIGHT CONTROLS/WTB/FLP/SYS1 10CV S07 122VU FLIGHT CONTROLS/WTB/SLT/SYS1 9CV S06 122VU ELEC/RFL/SPLY/LOGIC 4PR U29 122VU ELEC/REFLNG/ON/BAT 1PR U28
C. Do this test
NOTE : Wait at least 15 minutes and do this BITE test of the BCL1.
____
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the center pedestal, on the On the MCDU:
MCDU: - the BCL page comes into view.
- push the line key adjacent to
the BCL indication.
2. On the MCDU: On the MCDU, on the BCL/TEST page:
- push the line key adjacent to - if the TEST OK message comes into the TEST indication. view, stop the trouble shooting,
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-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
- if the CHECK HOT BUS 1 POWER CONSUMPTION message comes into view, continue the trouble shooting (refer to the paragraph that follows).
D. Preparation of the Fault Isolation
(1) Make sure that OFF/NAV/ATT selector switches on the ADIRS CDU are in the OFF position.
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(3) Release BAT1 and BAT2 pushbutton switches.
(4) Make sure that the refuel/defuel control panel is closed.
(5) Make sure that the circuit breakers shown in the figure are closed.
(6) In the battery power center 105VU, install an ammeter as shown in the figure.
4. Fault Isolation
_______________
A. If the test gives the maintenance message CHECK HOT BUS 1 POWER CONSUMPTION:
- read the value of the discharge current in the BAT 1 box on the ELEC page of the lower ECAM display unit.
NOTE : When you read the value of the discharge current, make sure that
____ the BAT1 contactor is open (on the ELEC page of the lower ECAM display unit).
(1) If the value of the discharge current is more than or equal to 1 ampere:
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