Subtask 34-22-25-860-063
 B. Aircraft Maintenance Configuration
 (1) On the SWITCHING panel 8VU, make sure that the AIR DATA selector switch is at NORM.
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 C. Make sure that this(these) circuit breaker(s) is(are) closed:
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU STBY/INST 5FN F12 105VU NAV/STBY/INST/BAT 23FN J01
 Subtask 34-22-25-860-064
 D. Aircraft Maintenance Configuration
 (1) On panel 35VU, make sure that the ELEC/ BAT1 and ELEC/BAT2 pushbutton switches are released.
 -the OFF legends is on.
 4. Procedure
_________ Subtask 34-22-25-740-052
 A. Operational Test of ISIS DC HOT BUS SUPPLY
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1.
 Open circuit breaker 5FN.

2.
 On overhead panel:

- on the panel 21VU, push and hold the EMER GEN TEST pushbutton switch (23XE).
-simultaneously, on the panel 35VU, release the ELEC/EXT PWR pushbutton switch (10XG).
 3. On the overhead panel: - on the panel 21VU, release the EMER GEN TEST pushbutton switch (23XE).
 - on the panel 35VU, push the ELEC/EXT PWR pushbutton switch (10XG).
On panel 401VU:
 -make sure that the display of the ISIS indicator (22FN) is off.
-after approximatly 12 seconds, makesure that the display of the ISISindicator (22FN) is on. The INIT 90s(initialization display) indicationcomes into view.
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 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
4.
 Close circuit breaker 5FN.  - after approximatly 12 seconds, make sure that the display of the ISIS indicator (22FN) is on. The INIT 90s (initialization display) indication comes into view.

 5.
 Close-up

________
 Subtask 34-22-25-860-065
 A. Put the aircraft back to its initial configuration.
 Subtask 34-22-25-862-051
 B. De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).

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 BITE Test of the ISIS Indicator with the pushbutton switches on the Face of the Indicator.
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
 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 34-10-00-860-002 ADIRS Start Procedure 34-10-00-860-005 ADIRS Stop Procedure
 3. Job Set-up
__________ Subtask 34-22-25-860-052
 A. Aircraft Maintenance Configuration
 (1)
 Energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-861-002).

 (2)
 Do the ADIRS Start procedure (Ref. TASK 34-10-00-860-002)

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 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU STBY/INST 5FN F12
 Subtask 34-22-25-865-051
 C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
　
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