Galls Street Thunder ST280 Instrukcja instalacji i obsługi - Strona 15
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(Operation CONT'D)
Volume Controls
The radio repeat volume (Radio) control is recessed in the
upper left hand corner of the front face. This should be set
when the vehicle is parked. First set the volume level of the
vehicle's two-way radio to its normal operating volume. Adjust
the siren's rotary selector switch into the RADIO position. Insert
a small, flat blade screwdriver into the RADIO volume
adjustment port. Turn clockwise direction to increase the
sound level.
The On/Off-PA volume control (PA) will both turn the unit on
and off, as well as control the public address volume. It is
located in the upper right hand corner of the front face.
When the unit is not in use, you may elect to leave this switch
in the OFF position. Turn the switch counter clockwise until it
clicks. This will power down the unit and will prevent
accidental activation of any of the controls on the face of the
unit. Rotating it clockwise will power up the ST280. As it is
turned clockwise, the outside volume of the PA will increase.
This should be set when the vehicle is parked. Set the PA
volume to the maximum level with no feedback (squeal).
Microphone
The attached noise-canceling microphone is used for public address operation
and overrides any siren tone when its push-to-talk (button on the side) is pressed.
Auxiliary Input
During installation an auxiliary input may be connected to the vehicle horn ring or
other switching device. It provides the same operation as pressing the Horn button
or optionally (via internal jumpers) the Manual rocker switch.
Park Kill (Cut-Out)
During installation, the Park Kill input may be connected to a door switch. It will
automatically turn off any siren tone when the door is opened. The siren tone will
continue to be cut off even when the door is closed. Changing any switch or input
will restore normal function.
Speaker Diagnostics
There are two diagnostic LED's located BENEATH THE manual/Horn rocker switch..
These LED's will only turn on while a tone is trying to be generated. Status of the
speakers are indicated as follows:
Steady
- Speaker is connected and
operating properly.
Flashing
- There is an electrical short in the
speaker or wires to the speaker.
Off
- No speaker is connected, or
- The siren is not activated to output
a tone to the speaker, or
- The speaker or wire connection is
loose or is electrically open
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