R  Megaphone - Component Location Figure 201B/TASK 25-65-51-991-001-B 
R  EFF :  301-399,  25-65-51 Page 205 May 01/05
 CES 

 **ON A/C ALL
 (1)
 Remove the batteries (4):

 (a)
 Press the bottom of the cartridge (3), and remove the screw (5).

 (b)
 Remove the cartridge (3) from the handle (2).

 (c)
 Remove and discard the batteries (4).

 (2)
 Install the batteries (4):

 (a)
 Put the batteries (4) (4) in the cartridge (3). NOTE : The polarity indication is shown on the cartridge (3).

____

 (b)
 Install the cartridge (3) in the handle (2).

 (c)
 Press the bottom of the cartridge (3), install and tighten the screw (5).

 Subtask 25-65-51-710-050
 B. Do the operational test of the megaphone (Ref. TASK 25-65-51-710-002).
 5. Close-up
________ Subtask 25-65-51-410-050
 A. Close Access
 (1)
 Install the megaphone in the compartment.

 (2)
 Attach/close the strap/clamp.

 (3)
 Close the door/access panel of the stowage compartment.

 (4)
 Make sure that the work area is clean and clear of tool(s) and other items.

 Subtask 25-65-51-862-051
 B. De-energize the ground service network
 (Ref. TASK 24-42-00-862-001).

 EFF : ALL
25-65-51Page 206
May 01/05
R
 CES  TASK 25-65-51-710-002

 Operational Test of the Megaphone
 1.
 Reason for the Job

__________________
 Refer to the MPD TASK: 256551-02

 2.
 Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power
 **ON A/C 001-049, 101-149, 151-199, 201-299,
 25-65-51-991-001-A Fig. 201 R **ON A/C 051-099, 401-499,
 25-65-51-991-001 Fig. 201A
 **ON A/C 301-399,

 25-65-51-991-001-B Fig. 201B
 **ON A/C ALL

 3. Job Set-up
__________
 Subtask 25-65-51-861-050

 A. Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 EFF : ALL
25-65-51Page 207

 Subtask 25-65-51-020-051
 B. Get Access
 (1) Open the door/access panel of the stowage compartment. NOTE : Megaphone locations are shown with placards, which are bonded
____
 on the outside of the stowage compartments.
 (2)
 Release/open the strap/clamp.

 (3)
 Remove the megaphone from the stowage compartment.

 4. Procedure
_________
 Subtask 25-65-51-710-051

 A. Operational Test WARNING : DO NOT OPERATE THE MEGAPHONE NEAR A PERSON'S EARS. AMPLIFIED
_______
 SOUND OR HOWLING CAN CAUSE DAMAGE TO THE INNER EAR.
 **ON A/C 001-049, 101-149, 151-199, 201-299,

 (Ref. Fig. 201/TASK 25-65-51-991-001-A) R **ON A/C 051-099, 401-499,
 (Ref. Fig. 201A/TASK 25-65-51-991-001)
 **ON A/C 301-399,

 (Ref. Fig. 201B/TASK 25-65-51-991-001-B)
 EFF : ALL
25-65-51Page 208

 **ON A/C ALL
 -------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. Hold the handle (2) of the megaphone, and put the microphone against your mouth:
 -Push the switch-button (6), and speak into the mouthpiece.
-Release the switch-button (6).
5. Close-up
________ Subtask 25-65-51-420-051
 A. Close AccessFrom the megaphone:
-You hear a click sound.
-The volume of your voice increases. Make sure your voice is clear (no feedback).
 NOTE : If you operate the megaphone in
____ a small space, you can hear a light ringing. Sound reverberation causes this.
-You hear a click sound.
 -The increased volume of your voice stops.
 (1)
 Install the megaphone in the compartment.

 (2)
 Attach/close the strap/clamp.

 (3)
 Close the door/access panel of the stowage compartment.
　
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