[Coladam] Coladam Digest, Vol 73, Issue 16

kevin laskowski klasko54 at gmail.com
Sun Jul 24 04:03:01 CEST 2011


Thank you Dr. D!
Great information. I dug out one of my old VCR'S,  hooked my coleco
console to the RF IN, and the AV jacks out to my samsung lcd, AND IT
WORKS. Very large, clear crisp graphics, that fill the whole 32"
screen, with no flaws. Thanks again. Kevin.

On 7/23/11, coladam-request at adamcon.org <coladam-request at adamcon.org> wrote:
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> Today's Topics:
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>    1. COLECOVISION CONSOLE PROBLEM (kevin laskowski)
>    2. Re: COLECOVISION CONSOLE PROBLEM (Rich Drushel)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 22 Jul 2011 00:35:00 -0400
> From: kevin laskowski <klasko54 at gmail.com>
> Subject: [Coladam] COLECOVISION CONSOLE PROBLEM
> To: Coleco help desk <coladam at adamcon.org>
> Message-ID:
> 	<CABpmXvX402o5Oqeyf+a7a6XOv5AyzC3PF-YXfzHGtPMvLXwo6Q at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I just bought a new Samsung 450 32" lcd. I hooked up my coleco console
> to it, and it comes on but theres a white snowy bar that flashes on
> the top and bottom of the screen. It also makes a clicking noise
> through the speakers when it flashes. It works fine on my old 20" tube
> set?
>
> Any thoughts? Thanks
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 22 Jul 2011 09:35:57 -0400 (EDT)
> From: "Rich Drushel" <drushel at apk.net>
> Subject: Re: [Coladam] COLECOVISION CONSOLE PROBLEM
> To: coladam at adamcon.org
> Message-ID:
> 	<54746.129.22.129.83.1311341757.squirrel at mail.expedient.net>
> Content-Type: text/plain;charset=iso-8859-1
>
>
> On Fri, July 22, 2011 12:35 am, kevin laskowski wrote:
>
>> I just bought a new Samsung 450 32" lcd. I hooked up my coleco console
>> to it, and it comes on but theres a white snowy bar that flashes on
>> the top and bottom of the screen. It also makes a clicking noise
>> through the speakers when it flashes. It works fine on my old 20" tube
>> set?
>>
>> Any thoughts? Thanks
>
>      TV sets with digital NTSC tuners or inputs are very intolerant of
> signals that are not exactly up to spec.
>
>      In the old LEGO robot course I used to teach, we had a roving spectator
> robot, Cambot, with a pinhole TV camera and short-range VHF transmitter
> (channel 3 or 4, selectable), to allow the audience to see a robot's-eye
> view
> of the competition.  An ordinary rabbit-ear antenna was used to receive the
> signal on a VCR, whose NTSC outs went to a 12" Commodore color monitor).
> Sometimes there would be interference from other robots, but the TV picture
> was pretty good, as was the VCR playback.  However, playing the VCR back
> through a digital camcorder, to either re-record to digital tape or else
> use the play-through to FireWire so I could import the video into iMovie
> and iDVD, the digital encoding would always stop at the slightest bit of
> interference or flutter in the original VHS tape.  This was with several
> different models of Sony camcorders.  No problem at all doing a VCR-to-VCR
> tape duplication.  Interestingly, the 32" tube TV we had in the lab could
> also display the VCR output with no problems, but it could not receive
> the Cambot TV broadcast directly through the rabbit ears without constant
> picture breakup.  Whatever the TV tuner circuit was in our VCR was more
> tolerant than the known digital TV tuner circuit in the 32" TV.
>
>      The upshot of this is I have 19 semesters' worth of robot competitions
> on VHS that, with equipment available to me, I have not been able to
> reliably digitally encode to get it all onto DVD.  Maybe newer VHS-to-DVD
> direct converters are more tolerant.
>
>      If you have shielded cables, instead of the cheap stereo speaker kind,
> you could try them.  Or try a long cable (15 feet or so) to make sure that
> interference from the console is not a problem.  Both the ColecoVision and
> the ADAM can radiate all kinds of spurious EMF.
>
>      The last thing that I can suggest would be to run the ColceoVision
> TV output (with game switch) into an older VCR with TV inputs and NTSC
> outputs, then pipe the VCR's NTSC out into your Samsung TV.  Maybe that
> will do some signal conditioning that improves the TV output.  For our
> robot competitions, we used Radio Shack video amplifiers/splitters (i.e.,
> one video/audio signal in, up to 3 copies out) in each camera line, to
> feed monitors and multiple VCR decks.  Those seemed to have some video
> stabilizing ability; at least, they didn't seem to degrade the signal.
> Ten years ago, they cost about $25.
>
>      There is a ColecoVision hack to make it output NTSC and separate
> audio, the way an ADAM system unit does.  I don't have a link at the
> moment but I have seen it around.  You could try this and see if it
> improves the video output quality.
>
>      *Dr. D.*
>
> --
> Richard F. Drushel, Ph.D.            | "They fell:  for Heaven to them no
> hope
> Department of Biology                |  imparts / Who hear not for the
> beating
> Case Western Reserve University      |  of their hearts."
> Cleveland, Ohio  44106-7080  U.S.A.  |         -- Edgar Allan Poe,
> "Al-Aaraaf"
>
>
>
>
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> End of Coladam Digest, Vol 73, Issue 16
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