B. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AUTO FLT/MCDU/1 11CA1 B01 121VU CFDS/CFDIU/SPLY 2TW J18 121VU DATA/LOADER/SPLY 3TD J16 121VU DLS&/DLRB/SPLY 5TD J15 121VU AUTO FLT/MCDU/2 11CA2 N20

R  **ON A/C 106-149, 155-199, 208-299, 301-399, 401-499,
 Post SB 31-1163 For A/C 155-156,208-209,
 121VU CFDS/CFDIU/BACK/UP  8TW J17

R  **ON A/C 106-149, 155-199, 208-299, 301-399, 401-499,
 4. Procedure
_________
 Subtask 31-38-00-740-050
 A. Do this test:
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the overhead panel, on the  On the display of the Data Loading
 Data Loading Selector: Selector:

 -set the ON/OFF switch to ON  DB/N:
 PUSH NEXT/PREV
 indication is shown.

 2.
 Adjust the brightness of the MCDU  - the MCDU 1(2) is on.
 1(2) screen.

 3.
 On the MCDU 1(2):  On the MCDU 1(2):

 -push the MCDU MENU mode key.  - the MCDU MENU page comes into view.
 4. On the MCDU 1(2):  On the MCDU 1(2):
 -push the line key adjacent to  - the CFDS MENU page comes into view. the CFDS indication.
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 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
5. On the MCDU 1(2):  On the MCDU 1(2):
 - push the line key adjacent to  - the SYSTEM REPORT/TEST page comes
 the SYSTEM REPORT/TEST  into view.
 indication.
 6. On the MCDU 1(2):  On the MCDU 1(2):
 - push the line key adjacent to  - the SYSTEM REPORT/TEST/INST page
 the INST indication.  comes into view.
 7. On the MCDU 1(2):  On the MCDU 1(2):
 - push the line key adjacent to  - the DLRB/DLS TEST page comes into
 the DLRB/DLS indication.  view.
 8. On the MCDU 1(2):  On the MCDU 1(2):
 - push the line key adjacent to  - the INITIAL CONDITIONS come into view
 the TEST indication.  on the DLRB/DLS TEST page.
 9. On the MCDU 1(2):  On the MCDU 1(2):
 - push the line key adjacent to  - the TEST OK indication comes into
 the START TEST indication.  view on the DLRB/DLS TEST page.
 5. Close-up________
 Subtask 31-38-00-860-093

 A. Put the aircraft back to its initial configuration.
 (1)
 On the Data Loading Selector, set the ON/OFF switch to OFF.

 (2)
 On the MCDU, push the line key adjacent to the RETURN indication until the CFDS MENU page comes into view.

 (3)
 De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).

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 TASK 31-38-00-740-002
 BITE Test of the Multipurpose Disk Drive Unit (MDDU)

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
36003607000  1 TEST DISK
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002  Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
 3. Job Set-up
__________ Subtask 31-38-00-861-070
 A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
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