SWITCH______ POSITION POWER ON WORD as given in the test SUBFRAME as given in the test INPUT ARINC INPUT DATA DATA PARAMETER SYNC B OCTAL DISPLAY 12 BIT
 S 865-004
 (5) Put a random six-digit number into the trip and date encoder.
 TASK 31-24-00-735-006
 5. Event Marker Signals Test
_________________________
 A. General
 (1)  Do not operate the event marker until the trip and date encoder completes its cycle.
 B. Access
 (1)  Location Zone
 101 Control Cabin - Left
 102 Control Cabin - Right

 C. Procedure
 S 865-007
 (1)
Make sure you did the Prepare for Input Parameter Test task.

 S 735-008

 (2)  
Do this test of the signals from the event marker:

 (a)  
Set the portable tester to SUBFRAME, 0 WORD 9.

 (b)  
Make sure the BIT 2 light is OFF.

 (c)  
Push the EVENT button on the trip and date encoder.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. B-2531 AND B-2532 ú
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737-300/400/500MAINTENANCE MANUAL
 (d)  
Make sure the BIT 2 light comes on.

 (e)  
Release the EVENT button.

 (f)  
Make sure the BIT 2 light goes out.

 S 865-009
 (3)  If you will do no more tests, then do this task: "Put the Airplane to its Usual Condition."
 TASK 31-24-00-735-010
 6.  Trip and Date Encoder Signals Test__________________________________
 A. Access
 (1)  Location Zone
 101 Control Cabin - Left
 102 Control Cabin - Right

 B. Procedure
 S 865-011
 (1)
Make sure you did the Prepare for Input Parameter Test task.

 S 735-012

 (2)
Do this test of the signals from the trip and date encoder.

 (a)  
Make sure the light on the trip and date encoder is off.

 (b)  
Push the REPEAT button until the light comes on and stays on.

 (c)  
Set the portable tester to SUBFRAME 0, WORD 9.

 (d)  
During the encoding cycle, make sure the BIT 2 light on the portable tester comes on and goes off several times.

 (e)  
Make sure that after approximately 16 (|2) minutes the trip and date encoder stops, the light on the encoder goes out and the BIT 2 light on the portable tester goes out.

 S 865-013
 (3)  If you will do no more tests, then do this task: "Put the Airplane to its Usual Condition."
 TASK 31-24-00-735-014
 7.  Magnetic Heading Signals Test_____________________________
 A. Access
 (1)  Location Zone
 101 Control Cabin - Left
 102 Control Cabin - Right

 B. Procedure
 S 865-016
 (1)
Make sure you did the Prepare for Input Parameter Test task.

 S 735-041

 (2)  
Do this test of the magnetic heading signals:

 (a)  
Put the IRS MODE SELECT switches on the P5 aft overhead panel to the NAV position.

 (b)  
Put and hold the DSPL SEL switch in the TEST position.

 (c)  
Put the SYS DSPL switch to the R position.

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737-300/400/500MAINTENANCE MANUAL
 (d)  
Put the COMPASS TRANSFER switch to the NORMAL position.

 (e)  
Set the portable tester to SUBFRAME 0, WORD 3.

 (f)  
Make sure the portable tester display is 0162 to 0235.

 (g)  
Put the compass transfer switch to the BOTH-ON-1 position.

 (h)  
Put the SYS DSPL switch to the L position.

 (i)  
Set the portable tester to SUBFRAME 0, WORD 3.
　
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