Troubleshooting
NOTE: The system contains no
Symptom: System does not operate.
1.Check system input voltage.
2.The Esprit system is protected by a resettable overcurrent protective device located in the transformer module. Whenever a fault condition is experienced in the system causing excessive current flow through the protective device, a change occurs that will prevent current flow. The protective device will remain in this state as long as power is applied and the system fault remains. The protective device will reset itself after power has been removed for a few minutes and will operate normally when the system fault has been repaired.
3.Check the camera and lens power connections and video BNC connections.
Symptom: No control/sluggish control (Coaxitron)
1.Check for correct type and length of coax cable.
2.Check for correct coax termination (refer to the controller manual to determine proper termination of video input). Normal load termination is 75 ohms. When looping through VCRs or multiplexers, make sure the signal is terminated at the end device. Some termination symptoms and problems are listed below.
Symptom | Problem |
Extremely bright video | No termination or high resistance |
Over contrast or contrast level of monitor needs to | Double termination (37.5 ohms) |
be increased to maximum for a good video image |
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3.If pan and tilt operation is sluggish, check the controller manual to make sure the control signal is set in the extended mode, not standard mode.
Symptom: No control (RS-422)
1.Check for correct cable type and length. The maximum cable distance for
2.Check for correct wire connections between transmitting device (such as the CM6700 Series matrix system) and Esprit system receiver. Correct connections are from the transmitting device TX+ to Esprit system RX+ and from the transmitting device TX- to Esprit system
3.Check for correct DIP switch settings.
Symptom: Ground loops
Ground loops are indicated by seeing 60 Hz noise on the video.
1.Check for resistance between the grounds of the keyboard and the system. Ideally, there should be zero ohms.
2.Remove the coax BNC connector and check for voltage between the BNC shield of the controller and the BNC shield of the system. No voltage should be detected.
It is recommended that a Pelco GIT100 ground isolation transformer be installed to eliminate the above problems.
Symptom: No video or poor video
1.Check the video and power connections to the camera.
2.Check for power to the camera from the Esprit system camera power output.
3.Check all coax BNC connectors from the camera to the monitor.
4.Make sure the controller is set for the correct
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