then the amplifier. If the sound character is abnormal, check the batteries
and then the siren circuitry.*
6.3
If no sound is heard, remove the microphone and mouthpiece assembly
and the batteries. Check that both the microphone and battery contacts are
clean. If not, clean with a mild, non-abrasive cleaner such as alcohol.
6.4
Test amplifier and speaker assembly by replacing the microphone with a
spare microphone assembly. If no sound can be produced after
microphone replacement, it may be assumed that the amplifier or speaker
assembly is defective.
6.5
To test the speaker, disassemble the speaker. Disconnect one wire and
apply 1 ½ volts intermittently across the speaker. If no clicks are heard,
the speaker is defective.
*
Optional Feature (see options Matrix)
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
No siren when alarm pin is pulled
(Step 6.2)*
Exhausted batteries, defective
siren circuitry or defective
amplifier
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
6.5
Defective speaker Replace
speaker
*Optional Feature (see options Matrix)
Y1-03-0014 Rev. R
6
