7.0 TROUBLESHOOTING
7.1
Testing procedure for locating defects is given in paragraph 6.0. Possible
faults and corrections are summarized below for ready reference.
TROUBLE
POSSIBLE CAUSE
CORRECTION
No sound from speaker
when handle is squeezed
(Step 6.1)
Exhausted batteries,
defective microphone,
speaker or amplifier
assembly
Replace defective
component
Sound is abnormally low or
distorted
Exhausted batteries or
wrong polarity of battery
series
Check proper insertion of
batteries or replace
batteries.
Speaker does not respond to
Step 6.4
Defective speaker
Replace speaker
8.0 DISASSEMBLY
(see Figure 2)
8.1
Megaphone should be disassembled for repair or replacement of
components only.
8.1.1 Remove microphone and mouthpiece assembly (2) by removing
the three set screws (3).
8.1.2 Remove battery cells (4) from the three tubes by tilting megaphone
to allow cells to drop out into the hand.
8.1.3 Remove the three oval head screws (10) at periphery of the speaker
end of the housing (14).
8.1.4 Extract Speaker & Megaphone Subassembly by firstly turning
horn (15) clockwise approximately 45°. Secondly pull the entire
assembly gently until it stops. Rotate the assembly
counterclockwise 45°, then pull the entire assembly out.
8.1.5 The Speaker Assembly (6) and Megaphone Subassembly (9) can
be separated by firstly unplugging the speaker wires from the "out"
header and then removing the hex screw that holds the asesmbly
together.
Y1-03-0057 Rev. F
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