-
On the SWITCHING panel (8VU): . set the EIS DMC selector switch to NORM.
-
On CAPT and F/O LIGHTING/LOUD SPEAKER control panels: . set the PFD and ND potentiometers to the minimum brightness position.
-
On the ECAM control panel: . set the UPPER DISPLAY and LOWER DISPLAY potentiometers to the minimum brightness position.
(2)
All the DUs return to their initial configuration.
5. Close-up________
Subtask 31-63-22-970-050
A. Result Analysis
If LUM: VC > X Cd/m2 No task is necessary
If X > LUM: VC > Y At the subsequent 2A Check, remove the DU.Then
adjust it in the workshop.
If LUM: VC < Y Remove the DU. Then adjust it in the workshop.
NOTE : The values given are minimum values. You can use higher values if
____ necessary for your maintenance and flight operations personnel. Cd/m2 = candela per square meter V = measured value Vc = corrected value X, Y = thresholds to compare with the measured values
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B. Result Chart
(1)
For measurement with luminance meter F1395993:
--------------------------------------------------| | A319/A320/A321 | |--------------------------|---------------------| | DU P/N | X | 24.2 | | 39061303 or ------------|---------------------| | 39071303 | Y | 21.0 | |--------------------------|---------------------| | DU P/N | X | 14.3 | | 39061304 or ------------|---------------------| | 39071304 | Y | 12.4 | --------------------------------------------------
(2)
For measurement with luminance meter LS100 or LS110:
--------------------------------------------------| | A319/A320/A321 | |--------------------------|---------------------| | DU P/N | X | 26.1 | | 39061303 or ------------|---------------------| | 39071303 | Y | 22.7 | |--------------------------|---------------------| | DU P/N | X | 15.4 | | 39061304 or ------------|---------------------| | 39071304 | Y | 13.4 | --------------------------------------------------
Subtask 31-63-22-410-051
C. Close Access
(1)
Remove the access platform(s).
(2)
Do the EIS stop procedure (Ref. TASK 31-60-00-860-002)
(3)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002)
(4)
Make sure that the work area is clean and clear of tool(s) and other items.
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DISPLAY UNIT (2WT1,2WT2,3WT1,3WT2,4WT1,4WT2) - CLEANING/PAINTING________________________________________________________________
TASK 31-63-22-100-001
Cleaning of the Display Unit (2WT1, 2WT2, 3WT1, 3WT2, 4WT1, 4WT2)
1. Reason for the Job__________________
Self Explanatory
2. Job Set-up Information______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R R No specific No specific No specific No specific absorbent surgical cotton wadding impregnated screen pad 2000 optical precision padsterile gauze pad
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 11-010 Material No. 11-020 USA TT-I-735 GRADE A ISOPROPYL ALCOHOL (Ref. 20-31-00) VISUAL DISPLAY UNIT ANTI-STATIC CLEANER (Ref. 20-31-00)
3. Procedure_________
Subtask 31-63-22-100-051
A. Cleaning of the Screen of the Display Unit
R R R CAUTION : BE VERY CAREFUL WHEN YOU CLEAN THE FRONT GLASS OF LCDU'S. IT IS_______ NOT POSSIBLE TO REPLACE THE GLASS. IF YOU CAUSE DAMAGE TO LCDU'S, THE DAMAGE WILL BE PERMANENT.
CAUTION : MAKE SURE THAT YOU OBEY THE INSTRUCTIONS IN THE CLEANING_______ PROCEDURE THAT FOLLOWS. INCORRECT CLEANING CAN CAUSE DAMAGE TO THE ANTI-REFLECTIVE COATING. IT IS NOT PERMITTED TO USE TISSUES SUCH AS KLEENEX TISSUES. SUCH TISSUES CAN CAUSE LOCAL REMOVAL OF THE SURFACE TREATMENT, AND THUS HALOS OR SCRATCHES. ALWAYS APPLY THE CLEANING AGENT TO THE PAD AND NOT TO THE SCREEN.
R R R R (1) Make an absorbent surgical cotton wadding or a sterile gauze pad or a optical precision pad moist with CLEANING AGENTS (Material No. 11-020) or CLEANING AGENTS (Material No. 11-010) or use a impregnated screen pad 2000
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