Switching test Figure 033 (SHEET 1)
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Switching test Figure 033 (SHEET 2)
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ECP : general criterion R **ON A/C 106-149, 303-399, 401-499,
Display (AU).
This page is displayed when the operator answered the test with the
key 5R during the step 5: the link DMC3/EFIS FO is faulty, with the
EIS DMC selector switch to FO
Display (AV).
When the key 5R has been pushed during the step 6 this page is
displayed, giving the faulty link: DMC3 with EFIS FO faulty, and
PFD/ND XFR
Display (AW).
Several messages are possible, two per page, when three or more
messages have to be displayed, several pages are needed with the
relevant page numbering.
Display (AX).
The next page is obtained if the operator presses the down arrow key.
(Ref. Fig. 034)
Display (AY).
After all messages have been red, the operator presses the RETURN
key, and get the TEST CLOSE UP page which direct the operator to set all C/B and switches back to NORM.
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Switching test Figure 034
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(11) DU BRIGHTNESS TEST
The DU BRIGHTNESS Test allows to check the brightness of linked to
the DMC.
(Ref. Fig. 035)
The test is available as soon as the operator pressses the key 4L on
the page "SWITCHING/BUS/DU TEST"
Display (A)
This is the step INITIAL CONDITIONS where the operator is asked to
set the related selector switch to NORM, and to check the DUs are ON.
Display (B)
The DMC3, to be active on the test needs some switching which leads
to this extra page.
(Ref. Fig. 036)
Display (C)
The operaror chooses the CAPT side by pressing the 2L key, which
leads to Display (C): INITIAL CONDITIONS with the DMC3 active on CAPT
side.
Display (D)
The operaror chooses the F/O side by pressing the 3L key, which leads
to Display (D): INITIAL CONDITIONS with the DMC3 active on F/O side.
Display (E)
This page comes into view after the operator has pressed the key 5L,
and provides this page to allow the operator to select one DU. Only
the active DUs can be selected.
(Ref. Fig. 037)
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DU Brightness test Figure 035
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DU Brightness test Figure 036 (SHEET 1)
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Display (F)
If the operator tries to select a DU which is not active, he gets
Display (F)
Display (G)
If the operator selects a DU which is faulty, he gets Display (G)
Display (H)
If, on display (E) the operator selects a DU which is active, he gets
Display (H). The example shows what is displayed after the key 2L has
been pressed.
Display (J)
If, on display (E) the operator selects a DU, of which the photodiode
is faulty, he gets Display (J). The example shows what is displayed
after the key 2L has been pressed.
(Ref. Fig. 038)
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INTENTIONALLY BLANK
1 1
31-69-00Page 91
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Display (K)
If the temperature of the light box inside the DU is not in the 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM 指示/记录系统 8(179)
