Pelco C554M-A (5/98) operation manual Troubleshooting, Maintenance, Pelco Manual C554M-A 5/98

5.0 TROUBLESHOOTING

GIT100 Ground Isolation Transformer

Although Coaxitron® receiver/drivers are immune to transient or surge disturbances, their performance can be impaired when there are large ground loop voltages be- tween associated controllers and the receiver/driver. The amplitude of ground loop potential that can be tolerated varies because of a combination of factors such as cable center conductor resistance, video signal amplitude, and cable length. If prob- lems due to excessive ground loop problems appear, the GIT100 Ground Isolation Transformer can be used. Refer to the GIT100 manual for installation and operation instructions.

CX900TLC Manual Test Module

The CX900TLC Manual/Test Board is a dual-purpose plug-in module that permits local operation of all functions directly from the receiver unit, and serves to verify that the receiver and accessories are operating properly by providing visual confir- mation. This module also aids in troubleshooting receiver or controller operational problems. Refer to the CX900TLC manual for installation and operation instruc- tions.

6.0 MAINTENANCE

Regularly scheduled maintenance is not required. Clean the outer surface of the receiver/driver with a non-abrasive cleaning cloth and antistatic cleaner. Do not use kerosene or similar substances that may damage the surface.

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