(h)
Make sure you have the lamp housing assembly engaged correctly in the annunciator assembly.
S 712-023
(3) Do a test of the annunciator lamps:
(a) Remove the DO-NOT-CLOSE tags and close the applicable circuit breakers.
NOTE: Refer to the SSM or the WDM for the affected system.
____
(b)
Push and hold down the annunciator faceplate.
(c)
Make sure all the annunciator lamps are on.
(d)
Release the annunciator faceplate.
(e)
Remove electrical power if it is not necessary
(Ref 24-22-00/201).
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A
737-300/400/500MAINTENANCE MANUAL
MASTER WARNING AND CAUTION LIGHTS - ADJUSTMENT/TEST
___________________________________________________
1. General_______
A. This procedure contains a task to do an operational test of the master caution lights.
B. This procedure does not examine all master caution circuits. Use the related system procedure to do a test of the indicator light circuits you find to be defective.
C. Refer to the System Schematic Manual (SSM) or the Wiring Diagram Manual (WDM) to identify which caution lights come on in the test.
TASK 33-15-00-735-001
2. Master Caution Lights - Operational Test________________________________________
A. References
(1) AMM 24-22-00/201, Manual Control
B. Access
(1) Location Zone
101 Control Cabin - Left
102 Control Cabin - Right
C. Procedure
S 865-022
(1) Prepare to do the Test:
(a)
Supply electrical power (AMM 24-22-00/201).
(b)
Make sure these circuit breakers are closed:
1) P6 Load Control Center - Right a) BATT b) No. 1 DC c) No. 2 DC d) SECT 1 e) SECT 2 f) SECT 3 g) SECT 4 h) SECT 5 i) SECT 6 j) DIM & TEST k) ENGINES MASTER CAUTION l) DC BUS INDICATION BAT m) FIRE PROTECTION DETECTION MASTER WARN & CONT n) AIR COND
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
o) ANTI-ICE
p) FUEL
q) ANNUNCIATOR NO. 1
r) ANNUNCIATOR BAT
S 715-021
(2) Do the Test of the Master Caution Lights:
(a)
Push and hold the LIGHTS switch on the P2 panel to the TEST position.
(b)
Make sure the system indicator lights, the master caution lights and the annunciator lights come on with a bright intensity.
NOTE: The Fire Warning lights are not checked during this
____
test.
If an indicator light is not bright, then one of the two lamps is defective. Replace the lamps when it is necessary.
(c) Release the LIGHTS switch to the BRT position.
NOTE: An annunciator light that has a system defect or shows
____ airplane conditions (such as a door open) will stay on. This is the correct operation of the annunciator.
(d)
Put the LIGHTS switch to the DIM position.
(e)
Make sure that the lights change from a bright intensity to a dim intensity.
(f)
Put the LIGHTS switch to the BRT position.
(g)
Push and release the pilot's MASTER CAUTION light.
(h)
Make sure that the master caution lights and the annunciator lights are off.
(i)
Push and release the pilot's annunciator.
(j)
Make sure the annunciator and the P5 overhead panel show the same defect or airplane condition lights.
NOTE: All the annunciator lights will be on while you have the
____
annunciator pushed.
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