Owner`s manual

53
The simplest way of solving this problem is to break the cable
company’s ground by using an isolation transformer on the incoming
cable line, before it reaches your television or VCR.
If you cannot find a 75Ω-75Ω baluns (isolation) transformer, you can
easily construct one from the adaptors which probably came with your
VCR and television, as shown below.
75Ω 300Ω
300Ω 75Ω
Ground Isolation Adaptor
place in-line with your cable feed, prior to the system connection
The assembly shown above may cause some loss of video signal
strength and/or bandwidth, and should be used as a temporary fix. It is
useful in determining the cause of some video-related noise problems,
however, and costs only a few dollars. If it seems to correct a problem,
consult with your dealer regarding a long-term solution which does
not degrade video performance.