Pelco C3420M manual Troubleshooting, Check the signal with a volt meter or an oscilloscope

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Troubleshooting

If your dome does not power up properly after installation, use the following steps.

1.Check the fuse on the circuit board inside the back box for continuity. Replace the fuse if needed.

2.Check the wiring with a volt meter to ensure proper voltage is being received into the back box. If your dome powers up correctly, but you do not have accurate control, use the following steps.

1.Check the signal with a volt meter or an oscilloscope.

NOTE: This step will not apply if you are using Coaxitron control.

2.Ensure that the switch settings on the dome drive are set correctly. Refer to the Switch Settings section.

3.If you are using a Pelco controller, ensure that the factory-installed 16-pin jumper has not been removed. If you are using a third-party controller, a TXB Series translator board must be installed. The dome will not function without this 16-pin jumper or a translator board installed.

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C3420M (8/06)

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Contents Heavy-Duty Spectra IV SeriesInstallation Table C. UTP Wiring Distances Table A. Video Coaxial Cable RequirementsC3420M 8/06 Attach the back box leash to the lower dome Switch 1 Barrel Lock Center PIN C3420M 8/06 Troubleshooting Check the signal with a volt meter or an oscilloscopeSwitch Settings Table E. Switch Settings for SW1, P-Type Control Table F. Switch Settings for SW1, D-Type ControlSpectra Switch Setting 111 191 Specifications Product Warranty and Return Information ISO9001