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Old 01-02-2009, 04:13 AM
johnfull johnfull is offline
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Join Date: Jan 2008
Posts: 15
The random shutdown of the set is a different issue from
the degausser failure. The degausser had been working fine
until my wooden dowel slipped off the large obelisk resistor
and hit the circuit board behind. That caused a yellow light,
like something glowing red hot briefly. This crippled the
degausser, but did not kill it. It still puts out a little bit of
current and shuts off gradually, as if the thermistor is still
working. There just isn't enough juice in that circuit to
properly demagnetize and instead caused a magnetization
that ruins the picture. So I unplugged the degausser at the
little connector on the wires coming off the circuit board.
End of that story, unless someone knows how current is
supplied to the degausser circuit and how it can be
restored to full value. Otherwise, hand-degaussing is
adequate.
I haven't had any further intermittent shutdowns of the
set as yet. For a couple of days after the accident with
the wooden dowel, the vertical size would vibrate slightly,
but this effect went away. The telltale horizontal size
shrinkage that precedes the intermittent shutdown wasn't
happening, though. It was something new.
So now I have a beautiful picture except for a magenta
lefthand bottom corner and a spot slightly inboard from
the righthand corner. These persist even after hand-
degaussing with a bulk eraser. I'm searching ebay and
other sites for a large-diameter degaussing coil. I notice
that ebay has many of the really cheap green rectangular
model degaussers for sale cheap. I wonder why...
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