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 8)  If the T12 sensor resistances are in the limits, replace the wiring harness for the control parameter (AMM 73-21-06/401).
 9)  If the T12 sensor resistances are not in the limits, replace the T12 temperature sensor (AMM 73-21-05/401).
 (f)  PMC Switch 1) Remove the P4 connector from the PMC. 2) Push the PMC On/Inop switch on the P5-68 engine module on
 the aft overhead panel in the flight compartment (Fig 506) to turn the PMC on. 3) Do a continuity check on the PCM switch cable between the pins P4-7 and P4-8. 4) If the circuit is continuous, do the procedure to do a test of the PMC warning light. 5) If the circuit is open, replace the PMC (AMM 73-21-04/401).
 S 435-050-C00
 (4)  
Install the removed electrical connectors.

 (5)  
Close the fan cowl panels (AMM 71-11-02/201).

 S 415-051-C00
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
K. PMC Warning Light - Test Without the PMC Tester
 S 865-053-C00
 (1)  
Do the activate procedure for the airplane power (AMM 24-22-00/201).

 S 725-052-C00

 (2)
Do these steps to do the test of the PMC without a PMC tester:

 (a)  
Push the PMC ON/INOP switch on the P5-68 engine module on the aft overhead panel in the flight compartment (Fig. 506).

 (b)  
Make sure the PMC INOP warning light on the P5-68 module comes on.

 (c)  
If the warning light does not come on, replace the P5-68 module (AMM 73-21-12/401).

 (d)  
If the warning light comes on, push the PMC ON/INOP switch to turn the PMC on. 1) Make sure the warning light goes off. If it does not,

 

 replace the P5-68 module (AMM 73-21-12/401).
 S 865-054-C00
 (3)  If it is necessary, do the deactivation procedure for the electrical power (AMM 24-22-00/201).
 TASK 73-21-00-725-055-C00
 3. Engine Idle Control System - Adjustment/Test
____________________________________________
 A. General
 (1)  
The system test for the engine idle control is given in two tests as follows:

 (a)  
The first test is done without the operation of the engine

 (b)  
The second test is done with the operation of the engine.

 

 (2)  
To fully do a system test of the engine idle control, you must do the two tests.

 (3)  
To do a check of the engine idle speed (AMM 71-00-00/501, Test No. 4).

 B. Equipment
 (1)  
Two function generators which make
 approximately 5V in a square or sine wave, and
 is adjustable from 50 Hz to 3000 Hz -Wavetek Model 171
 Synthesizer/Function Generator,
 Wavetek Corp., P.O. Box 85434,
 San Diego, CA 92138

 (2)  
Tachometer system test box - C77002-1

 (3)  
AIRPLANES WITH THE BENDIX LRRA RECEIVER/TRANSMITTER; Test Set - Radio Altimeter Simulation, Bendix Model ALT-51A

 (4)  
AIRPLANES WITH THE COLLINS LRRA RECEIVER/TRANSMITTER; Test Set - Radio Altimeter Simulation, Collins 980 N-1

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(5)  
AIRPLANES WITH THE HONEYWELL LRRA RECEIVER/TRANSMITTER;
 Test Set - Radio Altimeter Simulation, Honeywell HG7502BC02

 (6)  
AIRPLANES WITH THE TRT LRRA RECEIVER/TRANSMITTER;
 Test Set - Radio Altimeter Simulation, TRT ERT-530A

 (7)  
Test Set - Radio Altimeter Simulation, Atlantis ARA 552
 (Optional to the Bendix, Collins, or Honeywell Test sets)

 

 NOTE: If you use this test set, make sure the configuration of the
　
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