Date: Thu, 5 Sep 1996 15:18:06 -0700 (PDT)
From: Alexander Kanaris 
kanaris@alumni.caltech.edu
To: pixelvision@jupiter.rowan.edu
Subject: VCR hookup

>Bernard, just go from the monitor output on the pixcam to the antenna input
>on the VCR.  That's it!  You just gotta buy a little adapter from Radio
>Shack:  RCA (phono) male to RF (coax) female.
>
>Jeff


====================
>Not so easy! There is no input RF on the portable. Just on its tuner, which
>you would leave behind.
>The input is some sort of 10 pin connector for a vid cam. There is an RF
>output for hooking up a monitor for dubbing.
>There is an inputRCA plug to receive video & to 1/8plugs to hook up mikes.
>Did a quick test last night & the rca plug took video& audio from a Tycotoycam.Now I have to figure if the Pxl can shoot into that RCA plug as well.
>Not to mention getting new batteries for this old panasonic unit.
>-Bernard
>
========================

If there is no RF input on the portable VCR, you will have to operate
on your PXL. As much as I know, they never made portable VCRs with RF
inputs.

Open up the PXL, find the place on the circuit board where you have
baseband video (a scope will make it really easy to identify)
and tap into that point. It will be just before the RF modulator.
Put a high frequency transistor in collector follower connection
for buffering and impedance matching. Make sure your video
level is about 1Vpp on 75 Ohms or you may need additional gain. 

Next, identify the place on the circuit board where you have baseband
audio. It will also be just before the RF modulator.
It will probably be good to buffer that too, and the level should
be no less than 0.5Vpp and no more than 2Vpp on 47 KOhms.
Most VCRs have automatic audio (and video) level control, so they
will compensate for slight level mismatch. 

Drill two holes somewhere on the plastic case and install two 
RCA jacks, one for the baseband video and one for the baseband
audio. Choose the video jack to be yellow and the audio jack white.
If there is no place to drill the holes for RCA jacks, drill
one or two small holes large enough for some coax cable to go
through. Use a short length of coax and install two inline RCA jacks.
You may leave them dangling in the back of the camera. That will 
work as well. 

This job will take maybe about an hour, after you have all the
parts, depending on your skill level. It is harder to describe it
than to just do it!!

Good luck!


    <>

==============================================================================
Alexander Kanaris                           ___   ___     kanaris@bode.usc.edu
Electrical Engineering --- Systems   /  /  /__   /      kanaris@thales.usc.edu
University of  Southern California  /__/  ___/  /__     kanaris@girtab.usc.edu
Los Angeles, California 90089-2562                  kanaris@alumni.caltech.edu
==============================================================================