In Focus Systems Macintosh II LCD panel box

From: Geoff Reed <geoffr_at_zipcon.net>
Date: Mon Jun 9 12:45:01 2003

InFocus systems makes projectors and also LCD display panels that sit on
overhead projectors. The box you have is what connected one of their LCD
overhead projectors to a Mac-II (or newer) series machine _at_ 640x480
resolution...

At 02:08 PM 6/9/03 +0100, you wrote:
>Hi,
>
>Just came across a little 5x5x1" high metal box with the following connectors
>on it:
>
> 15-pin connector labelled "to computer"
> 15-pin connector labelled "to monitor"
> 15-pin high-density connector labelled "to LCD panel"
> connectors for "power in" and "power out"
>
>It's badged as being made by In Focus Systems, "For Macintosh II" and model
>"A-35C".
>
>Before I just trace it inside to see what it does I thought I'd ask here about
>it - maybe someone knows exactly what it is. Presumably some sort of frequency
>convertor unit; any ideas what LCD panel connected to it and the specs of
>it? I
>was hoping it would actually contain some sort of buffer memory inside (and
>might come in handy for something else with a bit of hacking), but it seems
>not. Chips inside are standard logic / timers, a couple of 8-pin "7660CPA"
>chips (whatever those do), and analogue sections for R, G and B. Chip
>dates are
>all within 1990.
>
>May still prove useful for something one day anyway!
>
>cheers
>
>Jules
Received on Mon Jun 09 2003 - 12:45:01 BST

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