User Guide

Y1-03-0057 Rev. K

4.2 Repair

The megaphone consists of three major sub-assemblies; the microphone and mouthpiece

assembly, the megaphone sub-assembly, and the horn and speaker assembly. Repairs are

restricted to the replacement of these defective sub-assemblies or the batteries and lanyard

assemblies.

SECTION 5 – DISASSEMBLY & ASSEMBLY

5.1 Disassembly

Megaphone should be disassembled for repair or replacement of components only.

1. Remove microphone and mouthpiece assembly (1) by removing the three set

screws (2).

2. Remove battery cells (3) from the three tubes by tilting megaphone to allow cells to drop

out into the hand.

3. Remove the three oval head screws (9) at periphery of the speaker end of the housing

(13).

4. Extract speaker & megaphone subassembly by rstly turning horn (14) clockwise

approximately 45°. Secondly pull the entire assembly gently until it stops. Rotate the

assembly counterclockwise 45° then pull the entire assembly out.

5. Separate the speaker assembly (5) and megaphone subassembly (8) by rstly

unplugging the speaker wires from the “out” header. Then, remove the hex screw that

holds the assemblies together.

6. FURTHER DISASSEMBLY IS NOT RECOMMENDED.

Inspect unit for any evidence of damaged parts, loose mountings or broken leads

and dirty electrical contacts.

5.2 Assembly

1. Align horn (14) and speaker assembly (5) with location pins on megaphone subassembly

(8).

2. Attach horn (14) and speaker assembly (5) to megaphone subassembly (8). Route

speaker wires through provided slot.

3. Plug speaker connector into the “out” header.

4. Push entire assembly gently into the housing (13), until it stops. Turn clockwise 45° and

push all the way in. Turn counterclockwise 45° and align holes.

5. Secure with screws (9).

6. Replace the six batteries (3) in three tubes at microphone end of megaphone case.

CAUTION: Observe polarity of batteries during installation procedure (see

instructions on battery tubes).

7. Replace microphone and mouthpiece assembly (1). Align keyway, and secure with the

three setscrews (2).

8. Assembly is complete. Test unit in accordance with Section 4.1.