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Figure 3-5. Press and Hold Modification.

Air Horn Configuration

Factory Configuration

Connect the in-line fuseholder lead to

the positive (+) battery terminal.

Connect the black wire to the negative

terminal of the battery.

3-4. AIR HORN PRESS-AND-HOLD

MODIFICATION.

The unit comes from the factory set so that the

peak-and-hold sound will be heard when the Selector
switch is set to MANUAL and the vehicle horn ring is
activated. To change the sound to air horn, merely
move jumpers J8 and J9 from the “PEAK” position on
the P.C. board to the “AIR” position (see figure 3-5).

3-5. RELATIVE PA LOUDNESS ADJUSTMENT.

After the electronic siren is completely installed

in the vehicle, set the Selector switch to MANUAL.
Depress the microphone push-to-talk switch, speak in
a normal voice, and adjust the GAIN control for the
desired sound level outside the vehicle. Turn-on the
vehicle’s two-way radio and adjust the volume to a
comfortable listening level inside the vehicle. Then
set the Selector switch to RADIO. Stand outside of
the vehicle and note the radio rebroadcast loudness.
If the sound volume is too loud or too soft, using a
small flat blade screwdriver, adjust R39 from the
back of the siren (see figure 3-6) to the desired sound
level.

After the adjustment is completed, the loudness

of the radio rebroadcast and public address may be
varied with the front panel GAIN control.

3-6. TESTING AFTER INSTALLATION.

WARNING

All effective sirens and horns produce
loud sounds (120 dB) that may cause
permanent hearing loss. Always mini-
mize your exposure to siren sound and
wear hearing protection. Do not sound
the siren indoors or in enclosed areas
where you and others will be exposed to
the sound.

After installation; test the electronic siren,

including horn operation, to ensure that it is operat-
ing properly.

After testing is complete, provide a copy of this

manual to all operating personnel.

Figure 3-6. Relative PA Loudness Adjustment.

290A4507-06

AIR
HORN

PEAK

C49

C48

R21

IC7

C29

R51

R31

IC10

D26

R23

R26

D21

C46

PEAK

IC6

AIR
HORN

PEAK

AIR
HORN

IC5

R15

R16

D25

R20

R22

IC1

+ +

C20

D27

IC3

R11

290A4507-07

AIR
HORN

PEAK

C49

C48

R21

IC7

C29

R51

R31

IC10

D26

R23

R26

D21

C46

PEAK

IC6

AIR
HORN

PEAK

AIR
HORN

IC5

R15

R16

D25

R20

R22

IC1

+ +

C20

D27

IC3

R11

R39

290A4507-08

Содержание PA300 Series 690009

Страница 1: ...Price 4 00 Model PA300 Series ELECTRONIC SIREN MODELS 690009 690010 INSTALLATION AND OPERATING INSTRUCTIONS...

Страница 2: ...h examination reveals a defect in material and or workmanship This warranty does not cover travel expenses the cost of specialized equipment for gaining access to the product or labor charges for remo...

Страница 3: ...rformance and durability under a wide range of environmental conditions PA300 Series Models 690010 12V 200W HI LO with microphone 690009 24V 200W HI LO with microphone 1 Figure 1 1 Model PA300 Series...

Страница 4: ...cles min Yelp 220 cycles min Hi Lo 70 cycles min Voltage Output approx 64V peak to peak 11 ohm load Dimensions HWD 2 1 2 6 35cm x 6 1 2 16 51cm x 8 1 2 21 59cm Net Weight incl microphone 4 1 2 lbs 2 0...

Страница 5: ...llation have compatible wattage ratings In order for the electronic siren to function properly the ground connection must be made to the NEGATIVE battery terminal Sound output will be severely reduced...

Страница 6: ...ety of positions Positioning the bracket above the unit allows mounting to the underside of the dash Positioning the bracket below the unit will permit mounting on any horizontal surface The unit shou...

Страница 7: ...nect the speaker leads 58W speakers to SPEAKER LOW POWER and 100W speakers to SPEAKER HIGH POWER as shown in the Control Cable Wiring Diagram figure 3 3 B Radio To allow incoming radio messages to be...

Страница 8: ...rom the vehicle battery drill a hole in the vehicle firewall for the power lead to enter the engine compartment Place a grommet or similar device in the hole to protect the wire against damage from ro...

Страница 9: ...oudness If the sound volume is too loud or too soft using a small flat blade screwdriver adjust R39 from the back of the siren see figure 3 6 to the desired sound level After the adjustment is complet...

Страница 10: ...s effective at warning others Maximum sound output will be severely re duced if any objects are in front of the speaker If your installation has obstructions in front of the speaker drive even more ca...

Страница 11: ...other vehicles etc Adjust the GAIN control to a position just below the point at which feedback occurs or as desired Figure 4 1 Front View 4 3 SELECTOR SWITCH The Selector switch is a five position ro...

Страница 12: ...uces Produces Wail Yelp Wail Yelp Wail Yelp 4 6 PRESS AND HOLD FUNCTIONS Additional alternate sounds can be activated in two other Selector switch positions by depressing and holding the horn ring for...

Страница 13: ...B that may cause permanent hearing loss Always minimize your exposure to siren sound and wear hearing protection Do not sound the siren indoors or in enclosed areas where you and others will be expose...

Страница 14: ...nob Selector 141A111 Circuit Board Assy 690009 2005183 24 Circuit Board Assy 690010 2005183 14 Switch Gain Control 106128 Figure 5 1 Internal View 12 Description Part Number Harness Wiring 690009 1461...

Страница 15: ......

Страница 16: ...255359A REV A 104 Printed in U S A...

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