background image

  

-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 1: ...Price 4 00 Price 4 00 Model Model PA300 PA300 ELECTRONIC SIREN ELECTRONIC SIREN INSTALLATION INSTALLATION SERVICE SERVICE AND O AND OPERATING PERATING INSTRUCTIONS INSTRUCTIONS...

Страница 2: ...kmanship and or workmanship This warranty does not cover travel expenses the cost of specialized This warranty does not cover travel expenses the cost of specialized equipment f equipment for gaining...

Страница 3: ...ans of a front panel GAIN control Radio panel GAIN control Radio inter connect wires are built in No additional cables inter connect wires are built in No additional cables are required are required T...

Страница 4: ...approx prox 64V peak to peak 64V peak to peak D Di im me en ns si io on ns s H HW WD D 2 2 1 1 2 2 6 6 3 35 5c cm m x x 6 6 1 1 2 2 1 16 6 5 51 1c cm m x x 8 8 1 1 2 2 2 21 1 5 59 9c cm m N Ne et t W...

Страница 5: ...n to func unctio tion pro n proper perly t ly the he ground connection must be made to the NEGATIVE ground connection must be made to the NEGATIVE battery terminal battery terminal Sou Sound ou nd out...

Страница 6: ...as a ing brackets as a template and scribe two drill positioning marks at template and scribe two drill positioning marks at the selected mounting location under the dash the selected mounting locatio...

Страница 7: ...the relay coil one end of the relay coil 10 Connect the other end of the relay coil 10 Connect the other end of the relay coil to to the opposite potential of that connected to the wiper the opposite...

Страница 8: ...seholder and 20 ampere fuse not supplied The supplied The fuseholder should be installed as close fuseholder should be installed as close as practical to as practical to the battery If necessary addit...

Страница 9: ...ess 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 n...

Страница 10: ...rely ly re re duced if any objects are in front of duced if any objects are in front of the speaker the speaker If your installation has obstructions in front If your installation has obstructions in...

Страница 11: ...so be activated by means of an auxiliary siren can also be activated by means of an auxiliary switch such as the horn ring switch such as the horn ring button refer to para button refer to para graph...

Страница 12: ...er analog switch connects the discharge pin of IC12A to the RC switch connects the discharge pin of IC12A to the RC timing network When the peak function is called for timing network When the peak fun...

Страница 13: ...ch is siren function as long as the horn ring switch is depressed depressed If manual or hi lo is If manual or hi lo is the selected mode and JU1 the selected mode and JU1 and JU2 are set to AIR the w...

Страница 14: ...NEGATIVE battery terminal to the NEGATIVE battery terminal Af Afte ter r r rep epai air r te test t st the e he ele lect ctro roni nic s c sir iren en an and d speaker system to ensure that it is spea...

Страница 15: ...ive of a defective speaker short circuited voice coil Rebroadcast of speaker short circuited voice coil Rebroadcast of unsquelched radio or music for long periods will unsquelched radio or music for l...

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 17: ...15 15 F F i i g g u u r r e e 6 6 3 3 C C o o m m p p o o n n e e n n t t L L o o c c a a t t i i o o n n D D i i a a g g r r a a m m...

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 19: ...R R1 1 2 2 3 3 6 6 T TI I5 55 5 1 11 15 5B B1 10 01 1 7 8 9 11 7 8 9 11 C CR R4 4 5 5 1 10 0 E ED D3 30 00 02 2S S 1 11 15 5B B3 30 01 1 13 14 15 13 14 15 C CR R1 16 6 1 1N N4 47 73 38 8 8 8 2 2V V Z...

Страница 20: ...Printed in U S A Printed in U S A 255A198M 255A198M REV M 901 REV M 901...

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