757 AMM 飞机维护手册 仪表 CHAPTER 31 - INSTRUMENTS 2(46)

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 27) From the summary page, you push the REC switch to return to the self test page. a) You push the TEST switch to return the EICAS to normal
 operation. 28) From the EICAS self test page, you press the ERASE switch twice to clear all present leg (flight leg 0) faults.
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757 MAINTENANCE MANUAL
 (g)  
LRU failure messages do not indicate results of self-monitoring. If a fault is detected during self-monitoring (the CU MONITOR code is non-zero) but not during the manually initiated test, the message TEST OK will still be displayed.

 (h)  
Proper switch operation can be verified by BITE while in self-test mode. When the following switches are pressed, a corresponding KEY message will be displayed: ENGINE, STATUS, CANCEL, RECALL, ECS/MSG, ELEC/HYD, PERF/APU, CONF/MCDP, ENG EXC, AUTO, MAN, REC, and ERASE.

 C. Control
 (1)  
To turn on EICAS, perform the following steps:

 (a)  
Provide electrical power (Ref 24-22-00).

 (b)  
Check that EICAS circuit breakers (6 places) on panel P11 are closed.

 (c)  
Adjust display intensity as desired using BRT/BAL controls on the display select panel.

 

 (2)  
To select computer display control, set COMPUTER switch on display select panel as follows:

 (a)  
Set switch to L position for left computer display,

 (b)  
Set switch to R position for right computer display,

 (c)  
Set switch to AUTO position for automatic display switching.

 

 (3)  
To clear engine maximum exceedances from the display, press the MAX IND RESET switch on display select panel.

 (4)  
Display Pages - Selection and Control

 (a)  
To select or clear the Secondary Engine page on the bottom display unit, press the ENGINE switch on the display select panel.

 (b)  
To select or clear the Status page on the bottom display unit, press the STATUS switch on the display select panel.

 (c)  
To select or clear a Maintenance page (ECS/MSG, PERF/APU, ELEC/HYD, CONF/MCDP, ENG EXC) on the bottom display unit, press the corresponding DISPLAY SELECT switch on the EICAS Maintenance Panel.

 (d)  
To select a non-volatile memory (NVM) Maintenance page for display, perform the following steps: 1) Select the desired page as described in the previous step. 2) Press the AUTO switch on the maintenance panel to select

 Auto Event memory for display. 3) Press the MAN switch on the maintenance panel to select Manual Event memory or display.

 (e)  
To record a maintenance normal event page, perform the following steps: 1) Select the desired page as described above. 2) Press the EVENT REC key on the maintenance panel.
　
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