🚀 go-pugleaf

Sylvia Else <sylvia@not.here.invalid> wrote in message
news:9pa0n7F1huU1@mid.individual.net...
> On 6/02/2012 7:58 PM, N_Cook wrote:
> > Sylvia Else<sylvia@not.here.invalid>  wrote in message
> > news:9p9i8dFk4bU1@mid.individual.net...
> >> After operating OK since the repairs I did after dropping a curtain
pole
> >> on this radio a month or so back, the LCD is playing up.
> >>
> >> If I perform an operation that clears the display, and enter an 8
digit,
> >> it looks normal enough. If I enter a second 8 digit, some of the
> >> segments of both digits (the same ones in each case) become fainter. If
> >> I enter a third 8 digit, the segments become fainter still, and so on,
> >> until they're pretty much invisible.
> >>
> >> This suggests an issue with one (or more) of the backplanes.
> >>
> >> The signals going in look normal enough, and in particular the
backplane
> >> signals don't change as I enter additional digits.
> >>
> >> Any thoughts before it ends up on the tip?
> >>
> >> Sylvia.
> >
> > Is there a contrast control that got broken as well?
> > What other LCD legends etc other than the main 8 digit display ?
> >
> >
>
> Can't see anything that adjusts contrast.
>
> The LCD doesn't have that much other than digits, but those that it has
> seem to work normally.
>
> The digits appear thus
>
>
>   XXXXXX
> X      X
> X      X
> X      X
>   ......
> .      .
> .      .
> .      .
>   XXXXXX
>
> Where XXX denotes segments that work, and ... denotes segments that don't.
>
> All the digits are failing in the same way, including a small digit that
> denotes a channel number.
>
> Since my original posting, I surmised, by cutting tracks, that these
> segments share a segment common, as do the top three. So then I
> connected them the other way around, with the result that the digits
> come out wrong or garbled, but the same three segments misbehaved.
>
> The connection to the LCD is via an eltroconductive rubber strip, which
> seems OK. Seems to me that the LCD itself is failing. Seems a strange
> failure mode though.
>
> Sylvia.

So probably a crack in the glass at the backplane connections and so some
silver loaded paint
perhaps, if lucky and an exposed area.