EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH AUTOSLAT ú

 27-83-00
 COMPUTER P/N 65-52818  ú CONFIG 1 ú 01 Page 105 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
COIL circuit breaker found open on autoslat computer No. 1.

70 |30 ohms between connector D3184B pins 24 and 26. IF -check for solenoid coil resistance of OK - Remove autoslat computer No. 1 and 

valve solenoid connector D3188. autoslat computer No. 1 and autoslat NOT OK - Isolate short in wiring between 

OK - Replace autoslat computer No. 1 and test (Ref 27-83-11).
COIL circuit breaker found open on autoslat computer No. 2.

70 |30 ohms between connector D3186B pins 24 and 26. IF -check for solenoid coil resistance of OK - Remove autoslat computer No. 1 and 

valve solenoid connector D3190. autoslat computer No. 2 and autoslat NOT OK - Isolate short in wiring between 

OK - Replace autoslat computer No. 2 and test (Ref 27-83-11).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH AUTOSLAT ú

 27-83-00
 COMPUTER P/N 65-52818  ú CONFIG 1 ú 01 Page 106 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 4. Put the Airplane in Its Usual Condition
_______________________________________
 A. Remove electrical power (Ref 24-22-00/201).
 B. Close the circuit breakers that follow:
 (1)  
LEFT ALPHA VANE HEATER, P18 panel
 RIGHT ALPHA VANE HEATER, P18 panel

 C.
If pressurized, depressurize hydraulic system B (Ref 27-81-00/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH AUTOSLAT ú

 27-83-00
 COMPUTER P/N 65-52818  ú CONFIG 1 ú 01 Page 107 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 LEADING EDGE AUTOSLAT SYSTEM - TROUBLE SHOOTING
_______________________________________________
 1.  General_______
 A.  This trouble shooting procedure uses the BITE feature of the stall management computer (SMC) to isolate faults in the stall warning system and the autoslat system. All interface with the BITE is through the maintenance control panel on the front of each SMC.
 B.  The SMC will allow entry into BITE only when one or both of these conditions exist:
 (1)  
Engines off. For SMC 1: Engine 1 N1 < 15%, Engine 2 N2 < 50% For SMC 2: Engine 2 N1 < 15%, Engine 1 N2 < 50%

 (2)  
Airspeed < 60 knots AND flaps fully retracted.

 2.  BITE Control and Display________________________
 A.  The maintenance control panel on the front of the SMC has two 8-character displays and 6 buttons for fault isolation and for checks during ground maintenance.
 (1)  
The ON/OFF button activates and deactivates the BITE feature. The All buttons on the SMC are normally inactive until the ON/OFF button is pushed to activate BITE.

 (2)  
The MENU button displays the current menu at any point in BITE. Pushing the MENU button interrupts any active test mode and returns to the most recently selected option of the current higher level menu.

 (3)  
The up arrow and down arrow buttons are used to sequence through the items under each menu.

 (a)  
If the up button is pushed when a list item or a menu option is shown, the previous item/option will be displayed.

 NOTE:____  A list item does not have a question mark (?) at the end. A menu option has a question mark at the end.
______
 (b)  
If the up button is held down, approximately 4 items/options per second will be shown in sequence until the button is released or until the first item/option is shown; at this time the display will show BEGIN OF LIST.

 (c)  
　
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