RE: [KAT5] Gradual darkening of picture

["erstwing_challenge" <mark@xxxxxxxxxxx>]

----- Original Message -----
From: "Keith Doxey" <kat5users@xxxxxxx>
To: <kat5-users@xxxxxxx>
Sent: Thursday, April 14, 2005 9:02 PM
Subject: RE: [KAT5] Gradual darkening of picture


>
> Hi Mark,
>
> When you say "outlet" are you refering to a particular CAT5
socket
or a
> KAT5
> Receiver?
>

KAT5 Receiver


> Is the cable effectively run as one long length
>
> TX----RXU-----RXU-----RXU----RX
>

Yes - and I have changed the position of each receiver via the patch
panel,
as well as gradually adding receivers. So, for example, If I go TX---
RX
(without any unterm receivers) I can position the RX unit at any of
the 4
CAT5 outlets and it will work fine. From this I think I can assume
that the
CAT5 wiring is not faulty. When I add RXUs into the chain the picture
gets
darker.

> It doesnt matter if it goes back and forth to a patch panel but it
MUST be
> a
> straight run not star wired at any point.

There is no star wiring

>
> Also, is the RX the final unit in the chain ?
>

Yes


> There mustnt be any sockets beyond the RX as this will create a long
> unterminated stubb of cable that will give problems.
>
> Have you tried each outlet using the same TV as a reference to
confirm
> that
> the picture is getting darker and that it isnt due to different
settings
> on
> the various TV's.
>

Yes. If I set up a chain of TX to RX only I can put the RX on each of
the 4
TVs and get a bright picture.


> If you unplug the first or second receiver does the brightness
appear
> normal
> on the darkest set?


Yes


>
> Are all the power supplies set to the correct voltage ?
>

Yes


> I may not be able to reply further until after I get back from the
> Smarthome
> show on Sunday.
>
> Regards
>
> Keith
>

Thanks, Keith. I would be grateful if you can confirm that it should
be
possible to run 4 or more receivers in a chain without noticable
darkening
of picture. As I mentioned, I have 6 to fit altogether, and if I am
pushing
the technology a bit I may rethink my plans. If it looks like a
problem at
my end then I will try some more investigation to work out what the
problem
is.

Regards

Mark







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