RE: Wico XY Pattern Generator - Decoding Switches

From: Zitt Zitterkopf <zittware_at_hotmail.com>
Date: Mon Nov 07 2011 - 11:58:19 EST

If you have them posted - sure I'll take a look.
 
I do not have a generator - hence the reason I'm trying to figure out how the switches work.
 
TBH; I want to build a generator of my own - using a microcontroller; but wanted to understand how existing ones work before I dive into that project.
 
These don't seem to come up for sale often.
 
John
 

To: vectorlist@vectorlist.org
Subject: Re: VECTOR: Wico XY Pattern Generator - Decoding Switches
From: electronicamuse@aol.com
Date: Mon, 7 Nov 2011 07:48:18 -0500

Do you want any pictures of the insides of the unit? Do you have one?

 
david grohowski
electronicamuse@aol.com

-----Original Message-----
From: Zitt Zitterkopf <zittware@hotmail.com>
To: vectorlist <vectorlist@vectorlist.org>
Sent: Mon, Nov 7, 2011 1:54 am
Subject: VECTOR: Wico XY Pattern Generator - Decoding Switches

I’m looking at the schematics for the Wico XY Pattern Generator; and can seem to figure out how the Front panel PCB connects to the Main Board.
 
At A-8 on the main schematics page; it shows P3-1-8 as connected to the D Flip Flops and the A10 of the U7/U8 pattern generating roms.
 
However, P3 doesn’t seem to connect correctly to the “cable” connected to the front panel board at B-8 on the second page.
 
It appears that the diode matrix appears to drive set/clear to Dflip flop U6-A which controls A9 on the ROMs.
But I’m unsure of the encoding given I can figure out how “P3” connects to the Front panel board.
 
Anyone have an idea?
John
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Received on Mon Nov 7 11:58:30 2011

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