Federal Signal Corporation PA4000 Installation, Operation And Service Instructions

MODEL PA4000

ELECTRONIC SIREN

PRICE $4.00

INSTALLATION, OPERATION, AND SERVICE INSTRUCTIONS

LIMITED WARRANTY

The Signal Division, Federal Signal Corporation (Federal), warrants each new product to be free from defects in material and workmanship, under normal use and service, for a period of two years on parts replacement and one year on labor from the date of delivery to the first user-purchaser.

During this warranty period, the obligation of Federal is limited to repairing or replacing, as Federal may elect, any part or parts of such product which after examination by Federal discloses to be defective in material and/or workmanship.

Federal will provide warranty for any unit which is delivered, transported prepaid, to the Federal factory or designated authorized warranty service center for examination and such 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 removal and re-installation of the product. Lamps, flash tubes, or batteries are not covered under warranty.

This warranty does not extend to any unit which has been subjected to abuse, misuse, improper installation or which has been inadequately maintained, nor to units which have problems relating to service or modification at any facility other than the Federal factory or authorized warranty service centers.

THERE ARE NO OTHER WARRANTIES, EXPRESSED OR IMPLIED,

INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES

OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR

PURPOSE. IN NO EVENT SHALL FEDERAL BE LIABLE FOR ANY

LOSS OF PROFITS OR ANY INDIRECT OR CONSEQUENTIAL

DAMAGES ARISING OUT OF ANY SUCH DEFECT IN MATERIAL OR

WORKMANSHIP.

SECTION I

GENERAL DESCRIPTION

Figure 1-1. Model PA4000 Electronic Siren.

The Federal Model PA4000 is a precision built, efficient and economical full-featured electronic siren of advanced design. It provides wail, yelp and priority siren tones, as well as the Tap II feature, public address (PA), radio rebroadcast and an air horn sound.

A horn ring switch allows the driver to determine the function of the horn ring. LEDs indicate when the vehicle horn is disabled and the horn ring is controlling either Tap II or the air horn tone.

Other special features of the Model PA4000 include:

The siren may be installed in negative ground vehicles with 12-volt electrical systems. It is protected against failure modes (including reversed polarity) by a fuse that is replaceable without tools.

No components protrude from the bottom of the siren to interfere with mounting arrangements.

•

•

High degree of reliability is achieved through the use of a CMOS microprocessor and silicon output transistors.

Control panel is illuminated with non-glare lighting.

The siren is made up of an Amplifier and a

Control Head. The Amplifier is suitable for mounting in a dry, adequately ventilated location, while the

Control Head is designed for flush mounting in the vehicle interior. Communication between the two units is via an RJ45 telephone connector.

• Newly designed printed circuit board provides improved performance and durability under a wide range of environmental conditions.

A noise-cancelling microphone is wired-in to prevent loss or theft. It provides high quality voice reproduction without feedback (squeal). The microphone push-to-talk switch overrides any siren signal for instant PA use. PA and radio volume are preset at the factory for maximum gain.

• AUX/OUT can drive an external relay for controlling other devices, such as warning lights.

• AUX/IN input can activate wail when the siren selector is in the manual position.

The Model PA4000 is designed to drive one or two 100 watt speakers. Using two 100-watt speakers will provide maximum traffic clearing power.

• Park-Siren Deactivator can deactivate siren tones when the vehicle is shifted into

PARK.

The Tap II feature allows the driver to change the siren sound via the vehicle’s horn ring or any remotely mounted switch.

• A diagnostic capability for speaker testing uses two LEDs for visual indication and four test tones for audible indication.

-1-

SECTION II

SPECIFICATIONS

Input Voltage .....................................................

11 Vdc to 16 Vdc

Polarity ...............................................................

Negative ground electrical systems only

Standby Current ................................................

250mA (backlighting extinguished)

Operating Current (Control Head & Ampl.) ....

13A

±

1A (at 13.6V with 5.5-ohm load)

Frequency Range ...............................................

725 to 1600 Hz (nominal)

Cycle Rate ..........................................................

Wail- 14 cycles/min.

Yelp- 180 cycles/min.

Voltage Output (approx.) ...................................

62V peak-to-peak

Audio Frequency Range ....................................

300 to 3KHz

Harmonic Audio Distortion ...............................

10% max. all power levels from 1/2 to 50 watts

(300-3000Hz) (frequency response

±

3dB)

Operating Temperature Range .........................

-30

°

C to +65

°

C

Dimensions (HWD)

Control Head ...............................................

2.9" x 6.3" x 1.5"

Amplifier Module ........................................

3.6" x 6.9" x 4.8"

Shipping Weight (approx.) ................................

7 pounds

-2-

SECTION III

INSTALLATION

Before Installation

SAFETY MESSAGE TO INSTALLERS

OF

ELECTRONIC SIRENS

WARNING

The lives of people depend on your proper installation and servicing of Federal products. It is important to read and follow all instructions shipped with the products. In addition, listed below are some other important safety instructions and precautions you should follow:

• Sound output will be severely reduced if any objects are in front of the speaker. If maximum sound output is required for your application, you should ensure that the front of the speaker is clear of any obstructions.

• Install the speaker(s) as far forward on the vehicle as possible, in a location which provides maximum signaling effectiveness and minimizes the sound reaching the vehicle’s occupants. Refer to the National

Institute of Justice guide 500-00 for further information.

Qualifications

• To properly install an electronic siren: you must have a good understanding of automotive electrical procedures and systems, along with proficiency in the installation and service of safety warning equipment. Always refer to the vehicle's service manuals when performing equipment installations on a vehicle.

• Mounting the speakers behind the grille will reduce the sound output and warning effectiveness of the siren system. Before mounting speakers behind the grille, make sure the vehicle operators are trained and understand that this type of installation is less effective for warning others.

Sound Hazards

• Sound propagation and warning effectiveness will be severely reduced if the speaker is not facing forward.

Carefully follow the installation instructions and always install the speaker with the projector facing forward.

• Your hearing and the hearing of others, in or close to your emergency vehicle, could be damaged by loud sounds. This can occur from short exposures to very loud sounds, or from longer exposures to moderately loud sounds. For hearing conservation guidance, refer to federal, state, or local recommendations. OSHA

Standard 1910.95 offers guidance on “Permissible Noise

Exposure.”

• DO NOT install the speaker(s ) or route the speaker wires where they may interfere with the operation of air bag sensors.

• Installation of two speakers requires wiring speakers in phase.

• All effective sirens and horns produce loud sounds (120 dB) 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 exposed to the sound.

• Never attempt to install aftermarket equipment, which connects to the vehicle wiring, without reviewing a vehicle wiring diagram - available from the vehicle manufacturer. Insure that your installation will not affect vehicle operation and safety functions or circuits.

Always check vehicle for proper operation after installation.

• Federal Signal siren amplifiers and speakers are designed to work together as a system. Combining a siren and speaker from different manufacturers may reduce the warning effectiveness of the siren system and may damage the components. You should verify or test your combination to make sure the system works together properly and meets federal, state and local standards or guidelines.

• DO NOT install equipment or route wiring or cord in the deployment path of an air bag.

• Locate the control head so the vehicle, controls, and microphone can be operated safely.

During Installation

• When drilling into a vehicle structure, be sure that both sides of the surface are clear of anything that could be damaged.

• DO NOT get metal shavings inside the product. Metal shavings in the product can cause the system to fail. If drilling must be done near the unit, place an ESD approved cover over the unit to prevent metal shavings from entering the unit. Inspect the unit after mounting to be sure there are no shavings present in or near the unit.

After Installation

• After installation, test the siren system and light system to ensure that it is operating properly.

• DO NOT connect this system to the vehicle battery until

ALL other electrical connections are made, mounting of all components is complete, and you have verified that no shorts exist. If wiring is shorted to vehicle frame, high current conductors can cause hazardous sparks resulting in electrical fires or flying molten metal.

• Test all vehicle functions, including horn operation, vehicle safety functions and vehicle light systems, to ensure proper operation. Ensure that installation has not affected vehicle operation or changed any vehicle safety function or circuit.

• After testing is complete, provide a copy of these instructions to the instructional staff and all operating personnel.

• Be sure the siren amplifier and speaker(s) in your installation have compatible wattage ratings.

• File these instructions in a safe place and refer to them when maintaining and/or reinstalling the product.

• In order for the electronic siren to function properly, the ground connection must be made to the NEGATIVE battery terminal.

Failure to follow all safety precautions and instructions may result in property damage, serious injury, or death to you or others.

-3-

3-1. UNPACKING.

After unpacking the Model PA4000, examine it for damage that may have occurred in transit. If the equipment has been damaged, file a claim immediately with the carrier stating the extent of the damage. Carefully check all envelopes, shipping labels and tags before removing or destroying them.

3-2. AMPLIFIER INSTALLATION.

CAUTION

The Amplifier is NOT waterproof. It must be mounted in a location which is sheltered from falling rain, snow, standing water, etc. Also, it must be installed in an adequately ventilated area. Never install near heater ducts.

Do not mount the Amplifier under the vehicle’s hood.

A.

Select a suitable mounting location for the

Amplifier. Some possible mounting locations are: in the equipment cabinet, under the front seat, or in the trunk (under the rear deck, near the rear seat speakers, if vehicle is so equipped). Keep in mind that the control cable is 15 feet long.

B.

Using the mounting holes on the amplifier as a template, scribe four drill position marks at the mounting location.

CAUTION

Before drilling holes in ANY part of a vehicle, be sure that both sides of the mounting surface are clear of parts that could be damaged; such as brake lines, fuel lines, electrical wiring, or other vital parts.

C.

The mounting hardware supplied in the siren accessory kit provides the siren user with a choice of mounting hardware; thread-forming screws with lockwashers or 1/4-20 cap screws with lockwashers and hex nuts. Consequently, the holes drilled in the mounting surface must be appropriate for the mounting screws selected. If the threadforming screws are to be used, drill 3/16" holes at the drill position marks. Drill 9/32" holes at the position marks if the 1/4-20 cap screws, lockwashers and nuts will be used.

Secure the Amplifier to the mounting surface, using the mounting hardware, including lockwashers.

3-3. CONTROL HEAD INSTALLATION.

WARNING

When installing equipment inside air bag equipped vehicles, the installer MUST ensure that the equipment is installed ONLY in areas recommended by the vehicle manufacturer.

Failure to observe this warning will reduce the effectiveness of the air bag, damage the air bag, or potentially damage or dislodge the equipment, causing serious injury or death to you or others.

The Control Head is designed to be flush mounted in any relatively flat surface. To install, proceed as follows:

A.

Select a location for the Control Head on the mounting surface that does not impair the drivers’ ability to safely drive the vehicle as he operates the siren. The selected location should afford good visibility and free accessibility to the

Control Head controls.

B.

Place the mounting template, supplied in the accessory kit, over the selected mounting location. Scribe a mark for each of the four mounting holes. Also, scribe a cut mark along the heavy dark line on the template.

CAUTION

Before drilling holes in ANY part of a vehicle, be sure that both sides of the mounting surface are clear of parts that could be damaged; such as brake lines, fuel lines, electrical wiring, or other vital parts.

C.

Drill four 0.120 diameter (#31 drill) mounting holes at the marks scribed in step B.

D.

Using a keyhole saw or sabre saw, saw into the mounting surface at the cutmark scribed in step B.

NOTE

Before completing the Control Head installation, perform the procedures in paragraph

3-4, Electrical Installation.

E.

With all wiring connections complete, place the Control Head in position and secure to mounting surface with four (4) #6B Phillips head thread-forming screws (supplied).

-4-

3-4. ELECTRICAL INSTALLATION.

WARNING

When installing equipment inside air bag equipped vehicles, the installer MUST ensure that the equipment is installed ONLY in areas recommended by the vehicle manufacturer.

Failure to observe this warning will reduce the effectiveness of the air bag, damage the air bag, or potentially damage or dislodge the equipment, causing serious injury or death to you or others.

A.

Control Cable.

The control cable is designed to be installed between the Amplifier and the Control Head. It consists of an 8-conductor cable terminated on both ends with RJ45 connectors. To install the control cable, proceed as follows:

1.

Install the one end of the control cable to the mating connector on the Control Head.

Amplifier.

2.

Route the control cable toward the

WARNING

Before drilling holes in ANY part of a vehicle, be sure that both sides of the surface being drilled are clear of parts that could be damaged; such as brake lines, fuel lines, electrical wiring, linkages or other vital parts.

3.

If routing the cable requires drilling a hole in sheet metal or other material, drill a 5/8" hole in the material. Install a 5/8" grommet (not supplied) or similar protective device in the hole, to protect the cable from damage which sharp edges could cause.

4.

Install the other end of the control cable to the mating connector on the Amplifier.

B.

Siren Connections.

The unit is supplied with an eleven-position connector to perform the electrical installation. Usersupplied 14-gauge red and black wires are required for the positive (+) and ground (-) connections. User supplied 18-gauge wires are required for the speaker, radio, horn switch, park switch, backlighting, and case ground connections.

To install a wire in the eleven-position connector, strip 1/4" of insulation from the end of the wire. Then insert the wire into the connector and tighten the screw at the appropriate connector position.

1.

Speaker.

The unit is designed to operate with one 11-ohm impedance speaker (100W) or two 11ohm impedance speakers (100W).

When using one 100W speaker, use 18 gauge wire and connect the speaker leads to positions

1 and 2 of the eleven-position connector as shown in figure 3-1.

CAUTION

Improper diagnostic test indications will result if speakers are connected in parallel. DO NOT connect speakers in parallel.

When using two 100W speakers, they must be connected in phase. See figure 3-1. On

FEDERAL speakers, this can be accomplished (using

18 gauge wire) by connecting the two speaker leads marked “2” to position 1 of the eleven-position connector. Connect one of the speaker leads marked

“1” to position 2 of the eleven-position connector.

Connect the other speaker lead marked “1” to position 3 of the eleven position connector.

2.

Radio.

See figure 3-1. To allow incoming radio messages to be rebroadcast over the outside speakers, connect user-supplied 18 gauge wires to positions

4 and 5 of the eleven-position connector. Connect the other end of the 18 gauge wires across the two-way radio’s speaker.

3.

Aux In.

This input will activate the wail siren tone when the siren selector is in manual.

To use this feature, connect a usersupplied 18 gauge wire to position 6 of the elevenposition connector as shown in figure 3-1.

4.

Park-Siren Deactivator.

IMPORTANT

It is the installer’s responsibility to determine an appropriate location in the vehicle circuitry to connect this wire.

This feature automatically deactivates siren tones when the vehicle is shifted into PARK.

See figure 3-1. To use this feature, connect a user-supplied 18 gauge wire to position 7 of the eleven-position connector. Connect the other end of the wire to a vehicle circuit that is, depending on the vehicle, grounded or connected to battery positive (+) when the vehicle is shifted into PARK.

-5-

CONTROL CABLE

1

2

SPEAKER

NO. 1

2

1

SPEAKER

NO. 2

UNIVERSITY PARK, IL. U.S.A.

RADIO PA

PA4000

11 PIN

CONNECTOR

* 18 GA.

(10)

BATTERY

2 WAY

RADIO

SPEAKER

INPUT

1 2 3 4 5 6 7 8 9 10 11 FUSE

20

1/4"

WIRE

STRIPPING

TYPICAL

BATTERY

POS. AND NEG.

*

+

**

BATTERY

-

COMMON

GROUND

**

FUSIBLE

LINK

TWO (2)

1/4" INSULATED

FEMALE TERMINALS

CONTROL HEAD

+

12VDC

OR

GROUND

PUSH ON

PUSH OFF

+

12VDC

OR

GROUND

SW

MOMENTARY SW.

VEHICLE SUPPLIED

PARK/NEUTRAL

HORN RING

CUT WIRE

4 3 2 1

LAMP HORN

+

12VDC

IGNITION SWITCH

RELAY

WHT/YEL

BLK

RED

WHT

END VIEW OF

CONTROL HEAD

SHOWN HERE

290A2697B DASH LIGHT OR IGNITION SWITCH

5.

This feature can be used to activate an external relay (200mA maximum) for controlling warning lights.

Aux Out.

NOTE

Figure 3-1. PA4000 Wiring.

C.

Horn Ring Cable.

This output is activated any time the siren is operating in Wail, Yelp, or Priority mode.

The horn ring cable assembly, located in the accessory kit, is a 4-wire cable terminating in an orange edge connector. This connector should be installed on the mating 4-pin connector (J2) located on the Control Head PC board, and should be oriented so that the white wire is closest to the RJ45 phone jack. The following paragraphs describe the installation of the leads at the other end of the horn ring cable.

To use this feature, connect a usersupplied 18 gauge wire to position 8 of the elevenposition connector as shown in figure 3-1.

1.

Horn Ring (figure 3-1).

6.

Ground.

Connect a user-supplied 18 gauge black wire to position 9 of the eleven-position connector. Connect the other end of the wire to the negative battery terminal.

7.

Ignition.

CAUTION

The horn ring transfer circuit of the siren is capable of switching a maximum of 10-amperes.

An external relay is not required for horn ring operation.

NOTE

Connect a user-supplied 18 gauge wire to position 11 of the eleven-position connector.

Connect the other end of the wire to a vehicle circuit that is powered when the ignition switch is “on”.

If the horn ring will not be used to control siren operation, fold back and insulate the

WHT and WHT/YEL wires in the power cable and

-6-

disregard the procedure in this paragraph. However, in order to utilize the Tap II and horn ring controlled

Air Horn features of the siren, the following procedure must be performed.

a.

Locate the wire that connects the vehicle horn ring switch to the horn or horn relay.

Cut this wire.

b.

Splice the white/yellow wire in the horn ring cable to the horn ring side of the wire that was cut in step a. Insulate the splice with a wire nut (supplied).

c.

Splice the white wire in the horn ring cable to the horn side of the cut wire. Insulate the splice with a wire nut (supplied).

2.

Lamp.

a.

Connect the red wire to the dash lights circuit or to a vehicle circuit that is powered when the ignition switch is “on”. This connection will supply power to the Control Head panel lights whenever the headlights are “on” or the vehicle ignition key switch is in the “on” position.

b.

Connect the black wire to the negative battery terminal.

The Control Head can now be secured to the vehicle dashboard.

D.

Amplifier Power Connections.

When making the power connections to the

PA4000, each wire must be terminated with an appropriate 1/4" female, insulated, quick-connect terminal. Complete the wiring to the unit as follows:

1.

Crimp the 1/4" female terminals on one end of user-supplied 14 gauge red and black wires. See figure 3-1. Connect the red wire to the

“POS” Amplifier connection. Connect the black wire to the “NEG” Amplifier connection.

WARNING

Before drilling holes in ANY part of a vehicle, be sure that both sides of the surface being drilled are clear of parts that could be damaged; such as brake lines, fuel lines, electrical wiring, linkages or other vital parts.

2.

If the Amplifier is installed in the vehicle passenger compartment, it will be necessary to drill a 5/8" hole in the vehicle firewall for the power and ground leads.

If necessary, drill a 5/8" hole in the vehicle firewall. Install a user-supplied 5/8" grommet,

-7or similar device or material, to protect the wiring and cabling against damage from rough edges.

3.

Route the leads from the Amplifier to an area near the battery. (Do not connect to battery at this time.) If necessary, pass the lead through the

5/8" hole that was drilled in step 2.

4.

Connect the black wire to the negative battery terminal. A secure mechanical and electrical connection is required.

3-5. INSPECTION AND FINAL INSTALLATION.

A.

Plug the eleven-position connector into the mating connector on the unit, and apply pressure until it locks into place.

WARNING

If wires are shorted to the vehicle frame or each other, high current conductors can cause hazardous sparks resulting in electrical fires and molten metal.

Verify that no short circuits exist before connecting to the Positive (+) battery terminal.

DO NOT connect this system to the vehicle battery until ALL other electrical connections are made and mounting of all components is complete.

Failure to observe this WARNING will result in fire, burns and blindness.

B.

Connect the red (+) wire to the positive (+) terminal of the power source. A secure mechanical and electrical connection is required.

3-6. TESTING AFTER INSTALLATION.

WARNING

All effective sirens and horns produce loud sounds (120 dB) 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 exposed to the sound.

After installation, test the electronic siren, including horn operation, to ensure that it is operating properly.

After testing is complete, provide a copy of this manual to all operating personnel.

SECTION IV

OPERATION

SAFETY MESSAGE TO OPERATORS OF

FEDERAL SIGNAL ELECTRONIC SIRENS

AND LIGHT/SOUND SYSTEMS

WARNING

The lives of people depend on your safe operation of Federal products. It is important to read and follow all instructions shipped with the products. In addition, listed below are some other important safety instructions and precautions you should follow:

• Frequently inspect the speaker to ensure that it is clear of any obstruction, such as mud or snow, which will reduce maximum sound output.

Qualifications

• To properly use an electronic siren and speaker(s): you must have a good understanding of general vehicle operation, a high proficiency in the use of safety warning equipment, and thorough knowledge of state and federal

UNIFORM TRAFFIC CODES.

Signaling Limitations

• Be aware that the use of your visual and audible signaling devices does not give you the right to force your way through traffic. Your emergency lights, siren, and actions are

REQUESTING the right-of-way.

• Although your warning system is operating properly, it may not alert everyone. People may not hear, see, or heed your warning signal.

You must recognize this fact and continue driving cautiously.

Sound Hazards

• Your hearing and the hearing of others, in or close to your emergency vehicle, could be damaged by loud sounds. This can occur from short exposures to very loud sounds, or from longer exposures to moderately loud sounds. For hearing conservation guidance, refer to federal, state, or local recommendations.

OSHA Standard 1910.95 offers guidance on

“Permissible Noise Exposure.”

• Situations may occur which obstruct your warning signal when natural or man-made objects are between your vehicle and others.

This can also occur when you raise your hood or trunk lid. If these situations occur, be especially careful.

Driving Limitations

• At the start of your shift, you should ensure that the light/sound system is securely attached to the vehicle and operating properly.

• All effective sirens and horns produce loud sounds (120 dB) that may cause permanent hearing loss. Always minimize your exposure to siren sound, roll up your windows and wear hearing protection. Do not sound the siren indoors or in enclosed areas where you and others will be exposed to the sound. Only use the siren for emergency response situations.

• If the unique combination of emergency vehicle equipment installed in your vehicle has resulted in the siren controls being installed in a position that does not allow you to operate them by touch only, OPERATE CONTROLS

ONLY WHILE YOUR VEHICLE IS STOPPED.

• If driving conditions require your full attention, you should avoid operating the siren controls while the vehicle is in motion.

Sound Limitations

• Before using the vehicle, check to see if the siren speakers are concealed from view. If the siren speaker is not in clear view on the front of the vehicle, use extra caution when operating the vehicle. A concealed siren speaker installation is less effective at warning others.

• Maximum sound output will be severely reduced if any objects are in front of the speaker.

If your installation has obstructions in front of the speaker, drive even more cautiously.

Continuing Education

• File these instructions in a safe place and refer to them periodically. Give a copy of these instructions to new recruits and trainees.

Failure to follow these safety precautions may result in property damage, serious injury, or death to you, to passengers, or to others.

-8-

4-1. GENERAL.

All controls utilized during normal operation of the Model PA4000 are located on the Control Head

(see figure 4-1).

4-2. SELECTOR SWITCH.

The Selector switch is a five-position rotary switch used to select the mode of operation. The following are positions on the Selector switch.

A.

RADIO.

In this position, incoming radio messages are amplified by the siren and rebroadcast over the outside speaker.

B.

MAN.

In this position, it is possible to operate the siren by activating the AIR HORN/MANUAL paddle switch. The siren can also be activated by means of an auxiliary switch, such as the horn ring button

(refer to paragraph 4-6).

C.

WAIL.

In this position, the siren produces a continuous “wailing” sound , up and down in frequency.

D.

YELP.

In this position, a continuous rapid

“warbled” tone is generated.

E.

PRIORITY.

In this position, a continuous extremely rapid “warbled” tone is generated.

NOTE

Pressing the microphone push-to-talk switch will override any function and provide instant public address operation.

FEDERAL SIGNAL CORPORATION

AIR HORN MAN

WAIL

YELP

RAD PRTY

MANUAL

SIREN

HORN RING

A/H SPKR TEST

L R

290A2925

Figure 4-1. PA4000 Control Head.

4-3. HORN RING SWITCH.

The horn ring switch determines the function of the vehicle horn ring.

1.

In the center position, the vehicle’s horn will sound. Both red LEDs are extinguished.

2.

In the left (SIREN) position, the red LED on the left is illuminated. Pressing the vehicle’s horn ring activates the Tap II function and changes the audible siren sound. The vehicle horn will not sound.

3.

In the right (A/H) position, the red LED on the right is illuminated. Pressing the vehicle’s horn ring will sound the air horn tone. The vehicle horn will not sound.

4-4. AIR HORN/MANUAL SIREN SWITCH.

The AIR HORN/MANUAL switch activates the electronic air horn sound (up) in any selected position, except RADIO, and the peak-and-hold sound (down) in the MAN position.

4-5. TAP II FUNCTIONS.

Tap II allows the driver to change the audible siren sound via the vehicle’s horn ring. This feature is especially effective for clearing traffic. The chart below demonstrates how the horn ring can be used to change the siren sound.

TAP II FUNCTIONS

Selector

Switch

Position

Wail

Yelp

First Horn

Ring Tap

Produces

Yelp

Priority

Second Horn

Ring Tap

Produces

Wail

Yelp

4-6. PRESS-AND-HOLD FUNCTION.

NOTE

For the press and hold functions to operate with the horn ring, the Control Head horn ring switch must be in the SIREN position.

Additional alternate sounds can be activated when the Selector switch is set to MAN or PRTY.

While depressing and holding the horn ring and the

Selector switch set to MAN, peak-and-hold siren will sound. In the PRTY position, the air horn will sound. Releasing the horn ring will cause the siren to revert back to the original function.

-9-

The TAP II functions can also be activated by depressing the MANUAL SIREN switch, as shown below:

Selector

1st Tap

(MANUAL)

2nd Tap

(MANUAL)

WAIL

YELP

PRTY

Yelp

Priority

Air Horn

Wail

Yelp

Air Horn

NOTE

Peak-and-hold siren and air horn are the

“Press and Hold” features.

4-7. AUX IN FUNCTION.

If installed, set the selector to switch to the

MAN position. Activate the installed auxiliary switch to sound the wail tone. To deactivate the wail tone, move the selector switch to the WAIL position and back to the MAN position.

4-8. AUX OUT FUNCTION.

If installed, this function will activate warning lights any time wail, yelp, or priority is sounding.

4-9. SPEAKER DIAGNOSTIC TEST.

To test the speakers, set the selector switch to

RAD. Press the AIR HORN/MANUAL paddle switch down. Four rapid beeps should be heard and the yellow LEDs should flash four times. Note that the yellow LEDs will illuminate when a siren tone is sounding.

4-10. PARK-SIREN DEACTIVATOR.

If installed, shifting the vehicle into PARK will silence the siren tones. Move the shift lever to another position to sound the siren tone.

4-11. PA AND RADIO GAIN ADJUSTMENT.

The PA4000 comes from the factory with the PA and radio gain set to maximum. To decrease the gain settings, proceed as follows while referring to figure

3-1.

1.

Locate the PA and radio potentiometers on the logic PC board near the RJ45 jack.

2.

Using a small flat blade screwdriver, rotate the appropriate potentiometer to a desired volume setting.

-10-

SECTION V

SERVICE AND MAINTENANCE

SAFETY MESSAGE TO PERSONNEL SERVICING

FEDERAL SIGNAL ELECTRONIC SIRENS

WARNING

The lives of people depend on your proper servicing of Federal products. It is important to read and follow all instructions shipped with the products. In addition, listed below are some other safety instructions and precautions you should follow:

• Read and understand all instructions in this manual before servicing the electronic siren or speaker.

• To properly service an electronic siren or speaker: you must have a good understanding of automotive electrical procedures and systems, along with proficiency in the installation and service of safety warning equipment. Always refer to the vehicle's service manuals when performing service on a vehicle.

• Electronic circuit and speaker repairs must be performed by a qualified and competent electronic technician.

• Your hearing and the hearing of others, in or close to your emergency vehicle, could be damaged by loud sounds. This can occur from short exposures to very loud sounds, or from longer exposures to moderately loud sounds. For hearing conservation guidance, refer to federal, state, or local recommendations.

OSHA Standard 1910.95 offers guidance on

“Permissible Noise Exposure.”

• All effective sirens and horns produce loud sounds (120 dB) 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 exposed to the sound.

• DO NOT connect this system to the positive terminal of the battery until servicing is complete, and you have verified that there are no short circuits to ground.

• In order for the electronic siren to function properly, the ground connection must be made to the NEGATIVE battery terminal.

• After repair, test the electronic siren and speaker system to ensure that it is operating properly.

• Federal Signal siren amplifiers and speakers are designed to work together as a system.

Combining a siren and speaker from different manufacturers may reduce the warning effectiveness of the siren system and may damage the components. You should verify or test your combination to make sure the system works together properly and meets both federal, state and local standards or guidelines.

Failure to follow all safety precautions and instructions may result in property damage, serious injury, or death to you or others.

5-1. GENERAL.

Most of the component electronic parts used in the Model PA4000 are standard items that can be obtained from any radio or electronics supply shop.

In order to reduce equipment down-time, Federal recommends that the entire Amplifier power printed circuit board (Part No.2001191A-01) or Amplifier logic circuit board (Part No. 2001191A-02) be replaced. The printed circuit boards are relatively inexpensive allowing you to keep an adequate supply in your repair shop.

The factory can and will service your equipment or assist you with technical problems, should any arise, that cannot be handled satisfactorily and promptly locally.

Communications and shipments should be addressed to:

Service Department

Federal Signal Corporation

2645 Federal Signal Drive

University Park, IL 60466

1-800-433-9132

(In Illinois) 1-708-534-3400

If any unit is returned for adjustment or repair, it can be accepted only if we are notified by letter or phone in advance of its arrival. Such notice should clearly indicate the service requested and give all pertinent information regarding the nature of malfunction and, if possible, its cause.

5-2. SIREN.

A.

General.

Any competent electronic technician should

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have little difficulty in tracing and correcting a malfunction, should any occur. For emergency replacement of any of the small components, care must be used when soldering. Heat easily impairs transistors, capacitors and circuit boards. It is therefore advisable to use longnose pliers or a similar heat sink on the lead being soldered.

B.

Removal for Servicing.

To remove the electronic assembly, located inside the Amplifier chassis, for servicing; proceed as follows :

1.

Remove the two phillips head screws on the amplifier’s side which secure the cover to the

Amplifier chassis.

2.

Remove the cover by sliding it away from the chassis.

C.

Removal of Circuit Board.

The Amplifier logic circuit board (top circuit board) is secured to the chassis by four Phillips head screws. Unplug the eleven-position connector, the

RJ45 connector, and the red and black connectors before removing the screws.

D.

Replacement of Output Transistors.

Failure of one or both of the output transistors (Q106, Q109) is usually the result of a defective speaker (short circuited voice coil). Rebroadcast of the unsquelched radio or music for long periods will also have a detrimental effect on the output transistors, and is therefore not recommended.

Federal recommends that both output transistors be replaced should only one device prove to be defective. This practice will insure long periods of service between failures.

When installing new output transistors, insure that the Sil-Pad insulators are installed between the heat sink and transistors.

CAUTION

Before reinstalling the repaired PA4000, make certain that the speaker(s) is (are) not defective.

WARNING

If wires are shorted to the vehicle frame or each other, high current conductors can cause hazardous sparks resulting in electrical fires and molten metal.

Verify that no short circuits exist before connecting to the Positive (+) battery terminal.

DO NOT connect this system to the vehicle battery until ALL other electrical connections are made and mounting of all components is complete.

Failure to observe this WARNING will result in fire, burns and blindness.

E.

Testing.

WARNING

All effective sirens and horns produce loud sounds (120 dB) 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 exposed to the sound.

After servicing is complete, perform a test of all functions to ensure siren is operating properly.

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5-3. REPLACEMENT PARTS LIST.

Reference

Designation

Q106, Q109

F1

LP1, 2

Description

Transistor, TIP35C, NPN, Power

Fuse, 20A, 32V

Lamp, Panel

Insulator (Q106, Q109)

Amplifier Power Circuit Board, PA4000

(with parts installed)

Amplifier Power Circuit Board, PA4000NY

(with parts installed)

Amplifier Logic Circuit Board

(with parts installed)

Control Head Circuit Board

(with parts installed)

Chassis

Cover

Amplifier Assembly, PA4000

Amplifier Assembly, PA4000NY

Control Assembly

Accessory Kit

Microphone

Output Transformer

Part Number

125B437B

148A142A

149A120

235A150A

2001191A-01

2005002A-02

2005001B

2001190A

85361107A

85361103A

85361108A

85361108A-02

85361106A

85361109A

258B577A-02

120258A

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255292C

REV. C 405 Printed in U.S.A.