-3-
-10-
Auxiliary Input Polarity
- The auxiliary input (green wire) is normally activated by
applying a positive voltage to the wire. To activate by connecting to ground
(negative), move the jumper from the "AUX-POS" pins to the "AUX-NEG" pins.
Park Kill Input Polarity
- The park kill (cutout) input turns off any siren tone
output when activated (i.e. vehicle shifted into park, door opened, etc.), and remains
off until a control on the siren is activated or changed. The wiring diagram on page
5 shows two connection examples.
The park kill input is normally activated by connecting the gray wire to positive
voltage. To activate by connecting it to ground (negative) instead, move the jumper
from the "PK-POS" pins to the "PK-NEG" pins.
Auxiliary Input Function
- The auxiliary input (green wire) allows activation by an
external source of either the Horn or the Manual push-button functions. This input is
usually wired into the vehicle horn switch. The wiring diagram on page 5 shows two
connection examples. NOTE: Permanent disconnection of the vehicle horn is NOT
recommended.
The siren is factory shipped with the auxiliary input option defaulted as the Horn
function (on only one of the "AUX" pins). To utilize the auxiliary input as the
Manual function instead of the Horn function, move the "AUX" jumper from one pin
onto both of the pins.
Two-Tone
– The Thunder sound can be replaced by a Two -Tone sound by moving
the "TT" jumper from one pin onto both of the "TT" pins.
Thunder Disable
- The Thunder function can be completely disabled by moving the
"TD" jumper from one pin to both pins. This will also disable the Two-Tone
function used when the manual button is pressed while the mode switch is in the
Thunder position.
SERVICE
This unit is designed to provide years of reliable service under even the worst
conditions. Many times there may appear to be a problem with the unit when the
true problem is in the speaker(s) or improper installation. The following chart
shows typical symptoms and possible causes.
TROUBLESHOOTING
Symptom
Possible Cause
Check
No power
Yellow wire is not powered
Connector loose
Siren 15A fuse blown
Loose connection at power source
Is yellow wire connected to switched +12VDC?
Check connector
Is power hooke d up backwards? Positive ground vehicle?
Is an external fuse or circuit breaker used?
Are the negative leads connected to a good ground?
No siren tone - PA
works
No siren tone - No
sound
High voltage protection
Low voltage protection
Microphone button stuck
Park Kill polarity option set wrong
Park Kill activated
Bad speaker or speaker wiring
The input voltage must be less than 16 volts.
The input must be greater than 10V with the siren turned on.
Does microphone button release properly?
Is the PK jumper option properly configured?
Does the siren work when Park Kill input is disconnected?
Check for a short.
Check for an open.
No PA
PA volume not set properly
Have you tried turning the PA volume control?
Distorted siren
sound
Speaker assembly loose
Intermittent Aux. Input connection
Low or high vehicle voltage
Is the speaker bell or tip loose?
Is the Aux. Input used and wired properly?
Input voltage must be between 10 & 16 volts while siren is on.
Intermittent siren
tone
High voltage protection
Low voltage protection
Microphone button activation
Circuit breaker in supply connection
Shorted speaker or speaker wire
Is the vehicle voltage regulator working properly?
Is the connector tight on the back of the unit? Is there a loose
connection on a power lead? The input must be greater
than 10V with the siren turned on.
Is something lying on the microphone?
Is a circuit breaker used with at least a 50A rating?
Does the speaker have water damage, or is a wire pinched?
Horn function or
Manual or
Thunder stuck on
Manual/Horn rocker switch stuck
Aux. Input improperly connected
Aux. Input Polarity Option set wrong
Does the switch return fully when released?
Is the Aux. Input used and wired properly?
Is the AUX jumper option properly configured?
No Radio
No or Low Radio
Unit not connected to radio
Radio volume too low
Radio outputs not isolated and polarity
hooked up backwards
Is the radio connected properly to the unit?
Can you hear the radio in the vehicle?
Have you tried turning the Radio volume control?
Are the radio wires connected to the correct polarity from the
radio output?
Wrong siren tone
Two-Tone option jumper installed
Aux. Input set to wrong function
Is the TT jumper option properly configured?
Is the AUX jumper option configured properly?
Thunder not
working
Thunder disabled
Is the TD jumper option configured properly?
