[sdiy] VCR display pinout?

[Matthew Valdes]

Haven't built it myself, but it gets the wheels turning.

http://www.angelfire.com/electronic/epeasant/projects/ringmod/trmod.html

Have fun!
Matt


>From: "med" <teenagewasteland at prodigy.net>
>To: "diydom" <synth-diy at dropmix.xs4all.nl>
>Subject: [sdiy] VCR display pinout?
>Date: Tue, 24 Sep 2002 20:14:22 -0500
>
>Okay, moderately off-topic. But if I can figure this out it might
>*eventually* have some form of synth application. Maybe blinkenlights
>as one plays :)
>I have two or so VCRs sittin' around gathering dust, and so i opened
>one up. It's mainly a bust (cept for the power supply, which I'm just
>barely too-squeamish-to-try) but there's a few things of moderate
>value in there. There's one of those old-school (like mid-80s) display
>screens, which appears to be made of many many tiny little LEDs. From
>what I can see (still haven't fully unsoldered it -- it's 32-ish pins,
>spaced two on the left -thirty-odd - two on the right) it's marked
>"P/N 1AV4T41B00900" and has a logo that appears to say Futaba. I
>opened up the other one just enough to be able to see the pins for its
>screen (which looks darned near *identical*, 'cept different pins
>connect all the way through) and stuck a scope on it. At first it
>looked like a sine wave with many varied "things" happening to it,
>like marching ants. Then, (taking the ground from the case of the VCR)
>it settled down into what looked almost like a pulse train. So my
>question is, how on earth *do* you drive these? Is it more trouble
>than it's worth?




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