Re: Making a Camcorder Viewfinder Work
From: Richard (spudnuty_at_lycos.com)
Date: 12/03/04
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Date: 2 Dec 2004 23:30:12 -0800
"Captain Blammo" <eas6@nbnet.nb.ca> wrote in message news:<yxRrd.189695$Np3.7727341@ursa-nb00s0.nbnet.nb.ca>...
> > Hmm, don't know muuch about Magnavox but my service manual for a Sony
> > CCD-TR78, 88, 98, 99, 514, 590, 614, 714 814 shows a 5 conductor flex
> > going to the viewfinder board VF-102 as 1- 5V, 2- GND, 3- Video, 4-
> > tally, 5- NC. a lot of these are very simular.
>
> Funny you should mention it, I actually have a viewfinder from a Sony
> CCD-TRV22 as well, but it only has the four conductors going into the VF-102
> board (Nothing on pin 5). Do you happen to know if scraping the surface off
> those cables is a good way to get at the conductors? I don't have the right
> connector to plug the end of the cable into. Also, does your manual mention
> what video format the viewfinder takes?
>
> Secondarily, and please do pardon my ignorance here, I'm not well versed in
> the art of pinout parlay. What does "tally" mean? I assume that "NC" means
> "Not Connected".
>
> Thanks for the info!
>
> Ewan
Hey Ewan,
Took a quick look at another Sony I have in pieces. It has a 4
conductor cable going to the viewfinder. It follows the same layout as
above and yes pin 5 is No Connection. In this case just not there. Pin
4 is Tally which actually is a video term for the little light that
comes on when the camera is recording. (In a studio it's the little
light on the top of the camera so the talent knows which camera to
look at. It can also be turned off ) I put 5 volts from 1 to 2 (neg)
and got the CRT to light up. If you open up the viewfinder you can
find which pin goes to the LED that would be 4.
I just use wires out of a Cat5 cable and shove them into the connector
for testing. You could find one of the mating blocks (male) off some
salvaged board (like junked VCR) and just cut out 4 pins mod it and
plug it into this cable then you could solder your own cable up.
Oh everything in this camera is NTSC EIA . Maybe I can play with it
more tomorrow.
Richard
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