Re: Rainbow on Panasonic TV

On Jul 14, 9:49 am, "AJ" <plotsl...@xxxxxxxxxxx> wrote:
Change the degauss thermistor, resolder the connections where the degauss
harness plugs into the main chassis, check if there is a degauss relay in
the circuit, if so change it also.
Seen a lot of large screen Panasonics, Samsungs, Sonys, RCA, Etc with very
similar problems due to failures in the degauss circuitry. Also seen many
dead sets with open fuse devises because the degauss thermistor actually
changes its resistance value, which eventually blows the main fuse because
of he additional current demand."Jerry G." <jerry...@xxxxxxxxxxx> wrote in message

news:1184383986.565436.323420@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx





The screen may be magnetized. The internal degausser may not be
working.

If the fault is not the internal degalusser, it is possible that the
shadow mask in the tube has become defective.

Both of these types of faults are comon.

Jerry G.
======

On Jul 13, 4:51 pm, distar97 <dista...@xxxxxxxxx> wrote:
This is very strange. My buddy has a 36 inch Panasonic Model CT36SF36
that suddenly
started displaying a rainbow pattern of colors that looks like a
bullseye. In other words there are circular bands of color
superimposed over the screen. The colors are transparent. You can see
a sharp picture that is mostly black and white, but sharp.

I doubt this is a normal degaussing problem. The bands are too
circular. There is a bit of
pulling in of the picture at the corners, as if the power is a bit
low.

Of course, the sets normal controls have no effect on the problem. The
set was not dropped
or otherwise physically damaged. The audio is normal.

This is a big heavy set, swapping out parts is not practical. Has
anyone ever seen this
problem?- Hide quoted text -

- Show quoted text -

Just take a strong magnet and wave it around the face of the tube
moving back gradually. See what that does.

H. R. (Bob) Hofmann

.

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