(c)  
Open the circuit breaker on the overhead circuit breaker panel, P11: 1) 11S19, AIR/GND SYS 2

 (d)  
Make sure the BIT (DISCRETE) 1 shows a 0 when the WORD are set to 15, 31, 47, and 63.

 S 865-915-001
 (2)  Close the P11 panel circuit breaker:
 (a)  
11S19, AIR/GND SYS 2

 (b)  
Make sure the BIT (DISCRETE) 1 shows a 1 when the WORD are set to 15, 31, 47, and 63.

 W. Accelerometer Test
 S 735-655-001
 (1)  Do the accelerometer test that follows:
 (a)  
On the tester, set the SUBFRAME and WORD as shown in the table that follows.

 (b)  
Make sure the tester display shows the correct data as shown in the table that follows:

 ~....................................................... | | TESTER SETUP | | | SIGNAL ........................... TESTER | | | SUBFRAME | WORD | DISPLAY | ......................................................... | VERTICAL | 0 | 50 | 3442 to 3706 | | | | | | | LATERAL | 0 | 47 | 4000 to 4243 | | | | | | | LONGITUDINAL | 0 | 55 | 4000 to 4243 | 2..............…............…............…..............1
 
 GUN 001-008, 010, 101 PRE-EO B531006;  ú 31-31-00
 GUN 009  ú CONFIG 1 ú 06 Page 526 ú Sep 28/01

A

757 MAINTENANCE MANUAL
 X. Put the airplane back to the usual condition.
 S 865-937-001
 (1)  If you used the HHDLU, do the steps that follow:
 (a)  
Set the function switch on the flight recorder control panel to the NORM position.

 (b)  
Push the red button on top of the HHDLU.

 (c)  
Remove the HHDLU adapter cable from the flight data recorder.

 (d)  
Install the test plug to the test connector at the flight data recorder.

 S 865-938-001
 (2)  
If you used test equipment other than the HHDLU, do the steps that follow:

 (a)  
Turn the tester off.

 (b)  
Open these P11 panel circuit breakers:
 1) 11J7, FLIGHT RECORDER AC
 2) 11J8, FLIGHT RECORDER DC

 (c)  
Disconnect the tester from the right side of the P61 panel.

 (d)  
Install the test plug to the test connector at the P61 panel.

 (e)  
Close these P11 panel circuit breakers:
 1) 11J7, FLIGHT RECORDER AC
 2) 11J8, FLIGHT RECORDER DC

 (3)  
Remove electrical power if it is no longer necessary (Ref 24-22-00).

 S 865-923-001
 
 GUN 001-008, 010, 101 PRE-EO B531006;  ú 31-31-00
　
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