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Pelco Manual C554M-A (5/98) 23
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.