Assembly - ACR Electronics EM-1A MEGAPHONE Product Support Manual

11.1 Assembly of the megaphone is in reverse order of disassembly. Follow
these instructions:
11.1.1 Attach Horn (18) and Speaker Assembly (7) to Megaphone
Subassembly (10). Ensure alignment with location pins. Pass
speaker wires through the provided slot.
11.1.2 Plug speaker connector into the "out" header on PCB.
11.1.3 Push entire assembly gently into the housing (15), until it stops.
Turn clockwise 45° and push all the way in. Turn
counterclockwise 45° and align holes.
11.1.4 Secure with screws (11).
11.1.5 Replace volume control knob (6) on volume control shaft.
11.1.6 Plug the alarm plug (5) attached to lanyard into jack in the side of
the case near volume control.*
11.1.7 Replace the six batteries (4) in three tubes at microphone end of
megaphone case.
CAUTION: Observe polarity of batteries during installation
procedure (see instructions at battery tube openings of the
megaphone).
11.1.8 Replace microphone and mouthpiece assembly (2). Align keyway,
and secure with the three setscrews (3).
11.1.9 Steps 11.1.1 through 11.1.8 complete the assembly of the
megaphone. After assembly, test unit in accordance with
Paragraph 6.0, Testing.
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Y1-03-0014 Rev. R