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From: Thomas on 16 Oct 2005 08:59

I have installed a do-it-yourself home theatre in my basement
consisting of a PC, a 25 foot VGA cable going to a DELL 2300 projector
mounted on the ceiling, and then another 25 foot cable coming from the
VIDEO OUT on the projector down to the "booth" to a monitor there. It
worked great for a while, but then once in a while the monitor in the
booth told me "no signal". It is happening more and more, and it's to
the point where I almost never get a signal at the booth. When I do
get a signal it's super crisp with no ghosting, so it seems like a
strong enough signal, when it's there. Does anyone have any idea if I
can make this problem go away? Would a different video card help?
Currently I'm just using whatever came installed in my eMachines T3092.
Many thanks for taking the time to read this, and for any suggestions.


Thomas

From: Scott Dorsey on 16 Oct 2005 09:19
Thomas <tpmeyer(a)gmail.com> wrote:
>
>I have installed a do-it-yourself home theatre in my basement
>consisting of a PC, a 25 foot VGA cable going to a DELL 2300 projector
>mounted on the ceiling, and then another 25 foot cable coming from the
>VIDEO OUT on the projector down to the "booth" to a monitor there. It
>worked great for a while, but then once in a while the monitor in the
>booth told me "no signal". It is happening more and more, and it's to
>the point where I almost never get a signal at the booth. When I do
>get a signal it's super crisp with no ghosting, so it seems like a
>strong enough signal, when it's there. Does anyone have any idea if I
>can make this problem go away? Would a different video card help?
>Currently I'm just using whatever came installed in my eMachines T3092.
> Many thanks for taking the time to read this, and for any suggestions.

I'd check the connectors very carefully to make sure you don't have a
flaky solder joint. Did you terminate them yourself?
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."
From: Steve Urbach on 16 Oct 2005 12:48
On 16 Oct 2005 05:59:29 -0700, "Thomas" <tpmeyer(a)gmail.com> wrote:

>
>I have installed a do-it-yourself home theatre in my basement
>consisting of a PC, a 25 foot VGA cable going to a DELL 2300 projector
>mounted on the ceiling, and then another 25 foot cable coming from the
>VIDEO OUT on the projector down to the "booth" to a monitor there. It
>worked great for a while, but then once in a while the monitor in the
>booth told me "no signal". It is happening more and more, and it's to
>the point where I almost never get a signal at the booth. When I do
>get a signal it's super crisp with no ghosting, so it seems like a
>strong enough signal, when it's there. Does anyone have any idea if I
>can make this problem go away? Would a different video card help?
>Currently I'm just using whatever came installed in my eMachines T3092.
> Many thanks for taking the time to read this, and for any suggestions.
>
>
>Thomas
In addition to Scotts questions.
Is the cable Stapled to the wall/ceiling? Possible puncture/staple
caused short (done that/been there. It is always somewhere hard to
reach).

Was the cable was routed through the walls/ceiling (sans conduit)
before the sheetrock/covering? Possible nail dammage.

Just in case the output is your culprit, take a known good cable and
the Monitor to the Projector and try it there.

Good hunting

From: Courtney Goodin on 16 Oct 2005 12:56

"Thomas" <tpmeyer(a)gmail.com> wrote in message
news:1129467569.376874.159230(a)o13g2000cwo.googlegroups.com...
>
> I have installed a do-it-yourself home theatre in my basement
> consisting of a PC, a 25 foot VGA cable going to a DELL 2300 projector
> mounted on the ceiling, and then another 25 foot cable coming from the
> VIDEO OUT on the projector down to the "booth" to a monitor there. It
> worked great for a while, but then once in a while the monitor in the
> booth told me "no signal". It is happening more and more, and it's to
> the point where I almost never get a signal at the booth. When I do
> get a signal it's super crisp with no ghosting, so it seems like a
> strong enough signal, when it's there. Does anyone have any idea if I
> can make this problem go away? Would a different video card help?
> Currently I'm just using whatever came installed in my eMachines T3092.
> Many thanks for taking the time to read this, and for any suggestions.
>
>
> Thomas

You might try putting a VGA multiplier or distribution amp at the computer
location with a short cable and run one output of the DA to the computers
monitor and a second long 25 foot cable to the projector. Monitors usually
base their switching on and off on the presence of the Vertical sync signal.
It could be that one of the connectors in your Dual 25 Ft. VGA cable setup
is flakey. VGA DA may help by removing one of the long cables from the mix
as well as adding line drivers to handle the 2 Monitor loads on the PC
output. It could also be that the projector's auto termination circuitry is
being fooled by the 2 long cables and not properly lifting the termination
when the computer monitor is plugged into the loop through VGA out.

---Courtney
>


From: William Sommerwerck on 16 Oct 2005 16:41
You need to systematically troubleshoot the problem, to determine whether
it's the monitor, the cable, or the card.

Have you tried a different monitor?

Have you tried a different cable?

Have you tried a different source?

You need to do this things one at a time, to isolate the problem.

PS: Have you checked to see that the cables are firmly plugged in?


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