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From: James Sweet on 5 Jun 2007 19:45

"Peabody" <waybackNO784SPAM44(a)yahoo.com> wrote in message
news:iem9i.428159$2Q1.364476(a)newsfe16.lga...
>I have JVC model AV-27920 television that goes back a few years.
>
> A few months ago, I began having a problem at the top of the screen.
> It's hard to describe, but it looks like to top part of the image is
> folded over and displayed upside down. I guess it looks like the
> the vertical isn't quite making it all the way to the top before the
> lines start being displayed.
>
> At first this occurred only when the TV was first turned on,
> affecting the top couple inches. As the set warmed up over 10
> minutes or so, this would gradually shrink, and finally all
> disappear, and everything looked normal. Nothing strange happens at
> the bottom fo the screen.
>
> Now, the foldover when cold covers more of the screen, and it no
> longer goes away completely when warm.
>
> I actually have the Sams schematic on this from folder 4080, and I'm
> hoping that whatever is failing is something I can replace. An
> electrolytic maybe?
>
> I don't have any test equipment, but am competent to remove, test,
> and replace things. So perhaps someone can suggest what to look
> for. I would appreciate any educated suggestions, either in general
> or with reference to functions I can find on the schematic.
>
> Thanks very much.
>

Electrolytic capacitors around the vertical output IC, they'll be smallish,
probably 1-10 uF at about 50V and usually there will be 2 or 3 that need
replacing.


From: Malissa Baldwin on 5 Jun 2007 22:41
On Jun 5, 7:21 pm, Peabody <waybackNO784SPA...(a)yahoo.com> wrote:
> I have JVC model AV-27920 television that goes back a few years.
>
> A few months ago, I began having a problem at the top of the screen.
> It's hard to describe, but it looks like to top part of the image is
> folded over and displayed upside down. I guess it looks like the
> the vertical isn't quite making it all the way to the top before the
> lines start being displayed.
>
> At first this occurred only when the TV was first turned on,
> affecting the top couple inches. As the set warmed up over 10
> minutes or so, this would gradually shrink, and finally all
> disappear, and everything looked normal. Nothing strange happens at
> the bottom fo the screen.
>
> Now, the foldover when cold covers more of the screen, and it no
> longer goes away completely when warm.
>
> I actually have the Sams schematic on this from folder 4080, and I'm
> hoping that whatever is failing is something I can replace. An
> electrolytic maybe?
>
> I don't have any test equipment, but am competent to remove, test,
> and replace things. So perhaps someone can suggest what to look
> for. I would appreciate any educated suggestions, either in general
> or with reference to functions I can find on the schematic.
>
> Thanks very much.

If you had tried Google before you posted then you would have found
out that the TV is broken and you need to buy a new one.

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