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B. Get the Maintenance Pattern on the DUs
(1) With DMC1 control (CAPT PFD, CAPT ND and upper ECAM DU)
NOTE : If the DMC1 is unserviceable, you can use the DMC3.
____ To use the DMC3:
- on the SWITCHING panel (8VU):
. set the EIS DMC selector switch to CAPT/3.
(a)
On the MCDU, get the SYSTEM REPORT/TEST/INST page (Ref. TASK 31-32-00-860-008).
(b)
On this page, push the line key (2R) adjacent to the EIS1 indication.
(c)
The EIS (DMC1) page comes into view. On this page, push the line key (4R) adjacent to the TEST indication. The EIS (DMC1) TEST page comes into view. On this page, push the line key (2L) adjacent to the DISPLAY TEST indication.
(d)
DISPLAY TEST IN PROGRESS comes into view and all the DUs show a diagonal line. After some minutes, the maintenance pattern comes into view on the related DUs: CAPT PFD, CAPT ND and upper ECAM DU.
NOTE : The maintenance pattern is divided into squares that show
____
the three colors.
(2) With DMC2 control (F/O PFD, F/O ND and lower ECAM DU)
NOTE : If the DMC2 is unserviceable, you can use the DMC3.
____ To use the DMC3:
- on the SWITCHING panel (8VU):
. set the EIS DMC selector switch to F/O/3.
(a)
On the MCDU, get the SYSTEM REPORT/TEST/INST page (Ref. TASK 31-32-00-860-008).
(b)
On this page, push the line key (3R) adjacent to the EIS2 indication.
(c)
The EIS (DMC2) page comes into view. On this page, push the line key (4R) adjacent to the TEST indication. The EIS (DMC2) TEST page comes into view. On this page, push the line key (2L) adjacent to the DISPLAY TEST indication.
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(d) DISPLAY TEST IN PROGRESS comes into view and all the DUs show a diagonal line. After some minutes, the maintenance pattern comes into view on the related DUs: F/O PFD, F/O ND and lower ECAM DU.
NOTE : The maintenance pattern is divided into squares that show
____
the three colors.
Subtask 31-63-22-280-050
C. Measure the brightness level on the green color for the related DUs (CAPT PFD, CAPT ND and upper ECAM DU or F/O PFD, F/O ND and lower ECAM DU) and use the measurement chart as follows:
NOTE : With luminance meter F1395993, K coef is written on the luminance
____ meter. With luminance meter LS100 or LS110 , use default K coef 1.018.
(Ref. Fig. 601/TASK 31-63-22-991-002)
(1)
On the measurement chart, write the P/N shown on the DU and also the DU position (CAPT PFD, CAPT ND, F/O PFD, F/O ND, upper ECAM DU and lower ECAM DU).
(2)
Put black masking tape on the two light sensors on the face of the DU.
(3)
Measure and do a check of the GREEN brightness level with the luminance meter.
(4)
Put the lens of the luminance meter against the face of the DU. There must be one cm approximately between the lens of the luminance meter and the face of the DU. Make sure that the green color fills the full visual field of the luminance meter and not only the internal circle that you can see in the luminance meter.
(5)
Push the trigger switch on the luminance meter to keep the value on the display then write this value on the measurement chart.
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Brightness Measurement Chart
Figure 601/TASK 31-63-22-991-002
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D. At the end of the measurement, push the MCDU line key (6L), adjacent to the RETURN indication, four times to return to the MCDU main menu.
(1)
Set the ECAM and the EFIS controls to the usual configuration and decrease the DU brightness as follows:
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