S 735-101
(6) Do a test of the HF-1 signals:
(a)
Set the captain's audio selector panel to HF-1.
(b)
Set the portable tester to SUBFRAME 0, WORD 9.
(c)
Make sure the BIT 2 light on the portable tester comes on.
(d)
Push the captain's PTT button.
(e)
Make sure the BIT 2 light on the portable tester goes out.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
BEJ 101-112, 114-999; ú 31-24-02
ú ú 17 Page 541 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 735-103
(7)
Use the first officer's audio selector panel and the first officer's PTT button to do the tests again.
S 865-104
(8)
If you will do no more tests, then do this task:
"Put the Airplane to its Usual Condition."
TASK 31-24-02-735-267
33. Autothrottle Disengage Switch Signal Test
_________________________________________
A. Access
(1) Location Zones
101 Control Cabin - Left
102 Control Cabin - Right
B. Procedure
S 865-268
(1)
Make sure you did the Prepare For Input Parameter Test task.
S 735-379
(2)
Do this test of the signals from the autothrottle disengage switch:
(a)
Set the portable tester to SUBFRAME 0, WORD 59.
(b)
Make sure the BIT 2 light on the portable tester is on.
(c)
Push the A/T disengage switch on the thrust lever for engine No. 1.
(d)
Make sure the BIT 2 light on the portable tester goes out.
(e)
Release the A/T disengage switch.
S 865-275
(3) If you will do no more tests, then do this task:
"Put the Airplane to its Usual Condition."
TASK 31-24-02-735-631
34. Autothrottle Warning Signals Test
_________________________________
A. Access
(1) Location Zones
101 Control Cabin - Left
102 Control Cabin - Right
B. Procedure
S 865-404
(1) Make sure you did the Prepare For Input Parameter Test task.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
BEJ 101-112, 114-999; ú 31-24-02
ú ú 05 Page 542 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 735-403
(2) Do this test of the autothrottle warning signals:
(a)
Set the portable tester to SUBFRAME 0, WORD 29.
(b)
Make sure the autothrottle is engaged.
(c)
Make sure the autothrottle warning lights are off.
(d)
Make sure the BIT 8 light on the portable tester is on.
(e)
Push the autothrottle disconnect switch.
(f)
Make sure the autothrottle warning lights flash.
(g)
Make sure the BIT 8 light on the portable tester is off.
(h)
Release the autothrottle disconnect switch.
S 865-405
(3) If you will do no more tests, then do this task:
"Put the Airplane to its Usual Condition."
TASK 31-24-02-735-408
35. Cabin Altitude > 10k ft Signals Test
____________________________________
A. Access
(1) Location Zones
101 Control Cabin - Left
102 Control Cabin - Right
B. Procedure
S 865-407
(1)
Make sure you did the Prepare For Input Parameter Test task.
S 735-406
(2)
Do this test of the cabin altitude > 10k ft signals:
(a)
Remove the connector D776 from the cabin pressure switch S128 at STA 192, WL 207, BL 0.
(b)
Set the portable tester to SUBFRAME 0, WORD 29.
(c)
Ground pin A of electrical connector D776.
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