Re: Camcorder/scart info please

["Campbell" <c.macd@xxxxxxx>]

Nigel,

Thanks for the advice ,

I am currently setting up the comfort relays to do some switching, with x10
controlling the power and was trying to minimise cable runs. I will use 6
core which should mean only the left and right audio grounds are commoned.
Just got to borrow a camcorder from a friend to try it out. I am intending
to use x10 for switching channels but will have to temporary shelve another
action as I have fully used up the housecode which comfort receives.

As I said previously I intended using two camcorders, but my son dropped
one
which no longer works. I took it to bits last night looking for the easy to
fix broken connection or component, with no luck :-(

Anyway now I,ve got a bag of bits reluctantly destined for the bin (I
usually think I can use the bits, but the electronic gizmos are beyond me.
Maybe I'll use the mic).

Time to get a B&W board from Henry's, when I get paid.

Anyway thanks again

Campbell

PS   Homebase exchanged my faulty LD10 no problem. Also I noted the current
price of the Home Control computer kit and remote kit, ain't I glad I
bought
when them when they were only £62 each, ah well if you buy both at £210
"I
think", they give you a free video :->


----- Original Message -----
From: "Nigel Orr" <Nigel.Orr@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Tuesday, June 13, 2000 8:55 AM
Subject: Re: [ukha_d] Camcorder/scart info please


> At 22:57 12/06/00 +0100, you wrote:
>
> >I am setting up a camcorder, possibly two for monitoring and wish
to
> >common the grounds.
>
> Which grounds?  The video ground from both cameras, or the video
ground
and
> speaker ground from each camera?  Or everything?  Where do you need to
> common them?  At the camera end or the display end?
>
> >Will commoning the speaker ground and video ground have an adverse
effect.
>
> Possibly, it depends on the cable you use, the circuits at each end,
and
> the length and route that the cable takes.  It might have no obvious
> effect, or you might get unacceptable buzzes or picture interference.
>
> There are a variety of solutions available if there are problems,
depending
> on what the problem is... how are you planning to connect them up?
>
> >Advise welcome before I try and fry!
>
> Frying anything is _very_ unlikely, if I have understood your planned
> setup.  I would expect worst case would be buzz on the audio or
ripples on
> the video.  Best approach is probably to try it, before cable is
installed,
> with cable run roughly where it will be finally fitted, then come back
with
> details of any problems and a drawing of the setup, and we can
probably
fix it.
>
> If you want a 'works first time' solution (more cost, less thinking),
fit
> isolating transformers to the audio and video at both ends and connect
the
> cable screen to earth at the display end- that shouldn't leave too
much
> potential for problems...
>
> Nigel
>
>
>
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