(c)  
Make sure that this circuit breaker is open and has safety tag:

CAPT Electrical System Panel, P18-2
Row Col Number Name
D 8 C01551 ISFD

(d)  
Do a wiring check between these pins of connector D3687B for the air data inertial reference unit and connector D10853 for the integrated standby flight display (WDM

(f)  
Re-install the air data inertial reference unit. To install it, do this task: Air Data Inertial Reference Unit Installation, AMM TASK 34-21-01-400-801.

(g)  
Re-install the integrated standby flight display. To install it, do this task: Integrated Standby Flight Display Installation, AMM TASK 34-24-02-400-801.

(h)  
Remove the safety tag and close this circuit breaker:

EFFECTIVITY SIL ALL  34-24 TASK 809 
D633A103-SIL BOEING PROPRIETARY -Copyright # Unpublished Work -See title page for details  Page 207 Jun 15/2008 

34-24-15): 
D3687B  D10853 
pin G7  ------------------ pin T 
pin G8  ------------------ pin S 
(e)  Repair the problems that you find. 

CAPT Electrical System Panel, P18-2
Row Col Number Name
D 8 C01551 ISFD

(i)  If the tests in the installation tasks for the air data inertial reference unit and the integrated standby flight display are satisfactory, and the HDG flag does not show on the integrated standby flight display, then you corrected the fault.
-------------------------END OF TASK ---------------------------810. OUT OF ORDER on the Integrated Standby Flight Display -Fault Isolation
EFFECTIVITY SIL ALL  34-24 TASK 809 
D633A103-SIL BOEING PROPRIETARY -Copyright # Unpublished Work -See title page for details  Page 208 Jun 15/2008 

A.  Description
(1)  OUT OF ORDER shows when there is a complete loss of integrated standby flight display function.
B.  Possible Causes
(1) Integrated standby flight display.
C.  Related Data
(1)
(SSM 34-24-15).

(2)
(WDM 34-24-15).

D.  Initial Evaluation
(1)  
This is the primary circuit breaker related to the fault:

CAPT Electrical System Panel, P18-2
Row Col Number Name
D 8 C01551 ISFD

(2)  
If OUT OF ORDER does not show on the integrated standby flight display, then there was an intermittent fault.

(3)  
If OUT OF ORDER shows on the integrated standby flight display, then do the Fault Isolation Procedure below.

E.  Fault Isolation Procedure
(1)
Cycle electrical power.These are the tasks:
Remove Electrical Power, AMM TASK 24-22-00-860-812
Supply Electrical Power, AMM TASK 24-22-00-860-811

(a)  
If the test in the installation task for the integrated standby flight display is satifactory and the OUT OF ORDER message does not show on the integrated standby flight display, then you corrected the fault.

(b)  
If the OUT OF ORDER message shown on the integrated standby flight display, then continue.

(2)
Replace the integrated standby flight display, N226. These are the tasks: Integrated Standby Flight Display Removal, AMM TASK 34-24-02-000-801, Integrated Standby Flight Display Installation, AMM TASK 34-24-02-400-801.

(a)  If the test in the installation task for the integrated standby flight display is satisfactory and the OUT OF ORDER message does not show on the integrated standby flight display, then you corrected the fault.
-------------------------END OF TASK ---------------------------
811. PROGRAM PIN ERROR on the Integrated Standby Flight Display -Fault Isolation
A.  Description
(1)  PROGRAM PIN ERROR shows when the program pin parity is incorrect.
　
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