757 AMM 飞机维护手册 仪表 CHAPTER 31 - INSTRUMENTS 2(133)

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 S 746-013
 (1)  On the P8 electronics panel, push and hold the WHL WELL switch on the FIRE/OVHT test panel and make sure of this indication:
 (a)  Make sure that the fire bell comes on.
 NOTE: The fire bell comes on for approximately 0.8 second each
____
 10 seconds.

 E.  Siren/Owl Check
 S 866-005
 (1)  Make sure that the parking brake is engaged.
 (a)  Make sure that the EICAS message, PARKING BRAKE, shows in red on the top EICAS display.
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 S 746-014
 (2)  On the right side panel, P61, momentarily push the TEST switch on the EICAS MAINT panel and make sure that these indications occur:
 (a) Make sure that the siren aural warning comes on.
 NOTE: The siren comes on for approximately 4 seconds at a
____
 time.

 (b) Make sure that the owl aural warning comes on.
 NOTE: The owl comes on for approximately 1 second at a time.
____
 (c)  Make sure that the MASTER WARNING lights on the glareshield come on.
 S 866-008
 (3) On the glareshield, momentarily push one of the MASTER WARNING switch-lights and make sure that these indications occur:
 (a)  Make sure that the siren goes off.
 NOTE: The siren can take up to 4 seconds before it goes off.
____
 (b)  Make sure that the owl goes off.
 NOTE: The owl can take up to 1 second before it goes off.
____
 (c)  Make sure that the MASTER WARNING lights go off.
 S 746-015
 (4)  On the EICAS MAINT panel, momentarily push the TEST switch to remove electrical power from the test circuits.
 (a) Make sure that the CAUTION WARNING lights go off.
 F. Chime Check
 S 866-009
 (1)  On a cabin interphone handset, momentarily push the PILOT switch.
 (a)  Make sure that one chime sound is heard.
 G. Put the Airplane Back to Its Usual Condition ú ú S 866-055 ú (1) Remove electrical power if it is not necessary (Ref 24-22-00/201).
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 EMI FILTER MODULE - REMOVAL/INSTALLATION
________________________________________
 1.  General
_______
 A.  This procedure has these tasks:
 (1)  
A removal of the EMI filter module

 (2)  
An installation of the EMI filter module.

 B.  The EMI filter modules are installed in the warning electronics unit (WEU), P51. The WEU is in the forward electrical/electronic equipment area.
　
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