Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!apple!decwrl!pa.dec.com!shlump.nac.dec.com!snoc01.enet.dec.com!cameronjames From: cameronjames@snoc01.enet.dec.com (James Cameron) Newsgroups: comp.sys.tandy Subject: Re: TRS-80 Model 1 question Message-ID: <1991Feb28.085743@snoc01.enet.dec.com> Date: 27 Feb 91 22:10:28 GMT References: <0bmzJQ_00VI8I0t_5p@andrew.cmu.edu> Sender: newsdaemon@shlump.nac.dec.com Reply-To: cameronjames@snoc01.enet.dec.com (James Cameron) Organization: Digital Equipment Corporation (Australia) Lines: 37 In article <0bmzJQ_00VI8I0t_5p@andrew.cmu.edu>, dd26+@andrew.cmu.edu (Douglas F. DeJulio) writes: > Does anybody know what I'd need to do to wire > something from the video out of the TRS-80 to the video in of a VCR? 1) 1 Shielded cable; of appropriate length; though twisted pair might work, 2) 1 VCR Connector; see your VCR for this, 3) 1 5pin DIN (male) connector [or was it six pin??]. The pins on the VIDEO out connector on the TRS-80 include +5v regulated Ground Video Out and I think there might be a sync output that isn't used much, since the video out is a composite sync type signal. I'm pretty sure that a VCR can handle an accidental 5vdc pulse; it gets heaps more out of an electrical storm. VCR video in sections normally include a capacitor to filter out DC levels. The composite video signal is around 2v peak-to-peak, I think. The point of all this is that I don't know off hand which pin is which, but I do think that trying out every pin sequence will give you what you need eventually. If you have a multimeter handy, use that first so that you can identify the +5v output pin. If you have the cassette drive cable available, use the shield of one of it's plugs as the ground reference. If you have nothing, then you'll find that the +5v pin will give a white flash on the screen. My model I's have monitors, and it's been a while since I connected them to my VCR... -- James Cameron Digital Equipment Corporation (Australia) P/L (cameronjames@snoc01.enet.dec.com)