Very Strange Antenna Problem?
 

Sorry for the duplicate post. Computer had frozen and I didn't know how to delete the second post!

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Hello,

I am trying to diagnose a problem with a 14" Grundig CUC7303 television. When using the built-in antenna, there are diagonal lines across the screen for each channel. On certain channels it is not as bad.

The strange thing is that, when an external antenna (Outdoors) is connected, these diagonal lines appear to go away?

I assumed that this may be a problem with either the tuning or I.F circuitry?

On Sun, 20 Feb 2005 18:15:13 +0000, M.Joshi
wrote:

From your description, it would seem to be an interference problem, so
as you have alredy determined, it needs a stronger signal pickup, and
the external antenna is the answer.

Peter Dettmann


Sorry for the duplicate post. Computer had frozen and I didn't know how
to delete the second post!

--------------------------------------------------------------------
Hello,

I am trying to diagnose a problem with a 14" Grundig CUC7303
television. When using the built-in antenna, there are diagonal lines
across the screen for each channel. On certain channels it is not as
bad.

The strange thing is that, when an external antenna (Outdoors) is
connected, these diagonal lines appear to go away?

I assumed that this may be a problem with either the tuning or I.F
circuitry?