ATI_Horn_Driver_Replacement___Wiring.pdf
PDF 328 KB Posted
- Attached to
- Giant Voice Maintenance Federal contract opportunity
- Solicitation number
- FA441820QA001
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| GV Questions and Answers.pdf | ||
| 44185_-_ATI_ACB.pdf | ||
| Wage Determination 2015-4427.pdf | ||
| PWS Giant Voice.pdf | ||
| 44169_-_Quick_Guide.pdf | ||
| Appendix A.pdf | ||
| JB CHS Base Access Form.pdf | ||
| RFQ Giant Voice.pdf |
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Text version
ATI
HORN DRIVER
Maintenance and Wiring Manual
ATI HORN DRIVER Replacement &Wiring
The picture shows the back of driver cover and the spinner knob to remove it.
The threading on the knob is very long and will take a lot of un-screwing to take off.
It will also probably be a bit corroded because it is exposed to the elements.
Always take a pair of slip-jaw pliers (and a rag to place between the pliers and the softer plastic of the knob) to loosen the knob.
ALWAYS BE CAREFUL of the gasket when replacing the back cover. The gasket keeps water and wasp out of the back of the enclosure.
ALWAYS PROPERLY RESEAT THE GASKET
Picture shows 4 drivers screwed into the driver yoke. (Though this could be 2 or even 1 drivers)
The threading on the speaker drivers is a standard 1.00” diameter with right hand thread used on all speaker drivers.
Note the 4 conductor terminal block between the bottom and the right drivers.
If you have to remove one of these you will probably need the rag as well. In the case of an exceptionally tough one you can use an Oil filter removal strap handle.
Be careful not to cross thread the parts.
NOTE:
Speaker Horn’s of this size are notorious for also housing WASP and HORNET Nest’s.
ALWAYS TAKE A FRESH CAN OF WASP & HORNET SPRAY WHEN SERVICING
THESE DEVICES
Speaker Wiring:
The speaker cables must be connected to the drivers per the ATI Installation Drawing. It is very important to follow the color code specified in the drawing, Figure 1 - WIRING FOR OS-1 SPEAKER
Wiring inside the OS-1 Speaker Head
NOTE:
Pay close attention to the driver polarity to insure proper phasing of the compression drivers within the horns
Connecting drivers out of phase will result in significant loss of audio output power and will require a revisit to the top of the pole to fix.
Speaker Impedances
You should read 2.5Ω ±.5Ω between pins 1-4 and 2-3 of each phoenix connector (this is to measure drivers, so cables must NOT be connected to the Siren Amp board when measuring)
The Speaker Cables shall then be run to the Stainless Steel Enclosure through the designated liquid tight fitting and then into the top controller compartment of the enclosure. On the audio output connectors J8, J9, J10, and J11, remove the plugs and connect them to the cables per the installation drawing.
Wiring from the Speaker Head to the Enclosure
File details come from the government source that posted it. Updated .