Re: Concord 4 issue or user issue?

[mleuck <m.leuck@xxxxxxxxx>]

On Dec 10, 6:12=A0pm, "Kid" <k...@xxxxxxxxxxxxxxx> wrote:
> "mleuck" <m.le...@xxxxxxxxx> wrote in message
>
> news:8dd570e0-5733-4625-8f95-ad3c5a737ee4@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> On Dec 10, 10:32 am, "Kid" <k...@xxxxxxxxxxxxxxx> wrote:
>
>
>
> > "mleuck" <m.le...@xxxxxxxxx> wrote in message
>
> >news:c2288b77-e19c-4b99-9961-3e745c76a359@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
.
> > On Dec 9, 9:53 pm, "alarman" <nos...@xxxxxxxx> wrote:
>
> > > mleuck wrote:
> > > >> I finally got to pull one of those the other day. What a monster.
> > > > That sounds like the 8300 which was a huge beast, the 8000 was a lo=
t
> > > > smaller
>
> > > Yup. You're right, it was an 8300. Weighed about 40 pounds. (18 kilos=
 to
> > > you, Doug)
>
> > > --
> > > js
>
> > > Si Vis Pacem, Para Bellum
>
> > That one actually was way ahead of it's time, until it lost power and
> > forgot it's programming
>
> > it's got the nickle shaped battery on the board but it is soldered in a=
nd
> > difficult to replace.
>
> The first version had a removable lithium battery, that was the one
> that caused the problems, the 2nd version had a capacitor
>
> How could it be a problem if it is removeable? =A0I've never seen one wit=
h a
> removeable battery or a cap, =A0and I've done hundreds. =A0although never=
 had to
> check the battery on the board till later in the lifespan and the few I d=
id
> check were soldered in.

I've changed them and never found one that was soldered in. I took
some pictures of both boards and on the new board they removed the
battery and in it's place was a reset button, where the old RAM
Battery jumper was is where the new capacitor is.

They changed a few things on the new "enhanced" board and supposedly
some of the older keypads wouldn't work although I never had that
problem, also the receiver connector changed. If you have the
Installation manual it's detailed in section 2-14 and 2-15 although
that doesn't mention the battery. I have no idea how many of the new
boards were out there but I doubt they made many since I almost always
ran into the old ones.