-7-
-7-
WARNING
WARNING
If wires are shorted to the vehicle
If wires are shorted to the vehicle frame or
frame or
each other, high current conductors can cause
each other, high current conductors can cause
hazardous sparks resulting in electrical fires
hazardous sparks resulting in electrical fires
and molten metal.
and molten metal.
Verify that no short circuit
Verify that no short circuits exist before
s exist before
connecting to the Positive (+) battery termi-
connecting to the Positive (+) battery termi-
nal.
nal.
DO NOT connect this system to the vehicle
DO NOT connect this system to the vehicle
battery until ALL other electrical connections
battery until ALL other electrical connections
are made and mounting of all
are made and mounting of all components is
components is
complete.
complete.
Failure to observe this WARNING will result
Failure to observe this WARNING will result
in fire, burns and blindness.
in fire, burns and blindness.
d.
d.
Co
Conn
nnec
ect th
t the in
e in-l
-lin
ine fu
e fuse
seho
hold
lder
er
lead to the negative (hot) battery terminal.
lead to the negative (hot) battery terminal.
e.
e.
C
Con
onne
nect
ct tthe
he re
red w
d wir
ire t
e to t
o the
he
positive terminal of the battery.
positive terminal of the battery.
3-4
3-4..
AIR
AIR HOR
HORN
N PR
PRESS
ESS-A
-AND-
ND-HOL
HOLD
D
MODIFICATION.
MODIFICATION.
The unit comes from the factory set so
The unit comes from the factory set so that the
that the
peak-and-hold sound will be heard when the Selector
peak-and-hold sound will be heard when the Selector
switch is set to MANUAL and the vehicle horn ring
switch is set to MANUAL and the vehicle horn ring is
is
activated. To change the sound to air horn, merely
activated. To change the sound to air horn, merely
move jumpers JU1 and JU2 from the “PEAK” posi-
move jumpers JU1 and JU2 from the “PEAK” posi-
tion on the P.C. board to the “AIR” position (see
tion on the P.C. board to the “AIR” position (see
figure 3-5).
figure 3-5).
3-5
3-5..
RE
RELAT
LATIV
IVE PA LOU
E PA LOUDNE
DNESS AD
SS ADJUS
JUSTME
TMENT
NT..
After the PA300
After the PA300 is completely installed in the
is completely installed in the
vehicle, set the Selector
vehicle, set the Selector switch to MANUA
switch to MANUAL. Depress
L. Depress
Figure 3-6. Relative PA Loudness Adjustment.
Figure 3-6. Relative PA Loudness Adjustment.
the microphone push-to-talk switch, speak in a
the microphone push-to-talk switch, speak in a
normal voice, and adjust the GAIN control for the
normal voice, and adjust the GAIN control for the
desired sound level outside the vehicle. Turn-on the
desired sound level outside the vehicle. Turn-on the
vehicle’s two-way rad
vehicle’s two-way radio and adjust the volume t
io and adjust the volume to a
o a
comfortable listening level inside the vehicle. Then
comfortable listening level inside the vehicle. Then
set the Selector switch to RADIO. Stand outside of
set the Selector switch to RADIO. Stand outside of
the vehicle and note the radio rebroadcast loudness.
the vehicle and note the radio rebroadcast loudness.
If the sound volume is too
If the sound volume is too loud or too soft, adjust R11
loud or too soft, adjust R11
through the hole at the bottom of the
through the hole at the bottom of the siren (see figure
siren (see figure
3-6) to the desired sound level.
3-6) to the desired sound level.
After the adjustm
After the adjustment is completed, the loud
ent is completed, the loudness
ness
of the radio rebroadcast and public address may be
of the radio rebroadcast and public address may be
varied with the front
varied with the front panel GAIN control.
panel GAIN control.
3-6
3-6..
TE
TEST
STING A
ING AFT
FTER I
ER INST
NSTAL
ALLA
LATIO
TION.
N.
WARNING
WARNING
All effective sirens and horns
All effective sirens and horns produce loud
produce loud
sounds (120 dB) that may cause permanent
sounds (120 dB) that may cause permanent
hearing loss. Always minimize your exposure
hearing loss. Always minimize your exposure
to siren sound and wear hearing protection.
to siren sound and wear hearing protection.
Do not sound the siren indoors or in enclosed
Do not sound the siren indoors or in enclosed
areas where you and others will
areas where you and others will be exposed to
be exposed to
the sound.
the sound.
After installation; test the
After installation; test the electronic siren,
electronic siren,
including horn operation, to ensure that it is
including horn operation, to ensure that it is operat-
operat-
ing properly.
ing properly.
After testing is comp
After testing is complete, provide a cop
lete, provide a copy of this
y of this
manual to all operating personnel.
manual to all operating personnel.
Figure 3-5. Press and Hold Modification.
Figure 3-5. Press and Hold Modification.
Содержание PA300 Series 690009
Страница 16: ...Figure 6 1 Chassis Figure 6 1 Chassis Removal Removal Figure 6 2 Internal View Figure 6 2 Internal View 14 14...
Страница 18: ...F F i i g g u u r r e e 6 6 4 4 S S c c h h e e m m a a t t i i c c D D i i a a g g r r a a m m 16 16...
Страница 20: ...Printed in U S A Printed in U S A 255A198M 255A198M REV M 901 REV M 901...