Re: Analog section? Or alaphanum

From: teeray <teeray_at_earthlink.net>
Date: Thu Dec 29 2011 - 20:08:16 EST
This problem is in the timer section (Scale) or timer control.
This is one where just making sure the inputs and outputs are toggling
is not going to find the problem. You're going to have to make sure the gates
are outputting the correct value for the given input condition.

Looking at this, it draws "A" then moves over and starts drawing "B" half way through
the scale gets changed, finishes draw "B" at wrong scale which throws off X and Y position.
Then moves over and draws "C" from the current XY position, like it should do.
XY position is working correctly, it's off because the scale was wrong while drawing "B".

What's causing the scale problem? 
Wrong value got loaded in the LS161's  or counting wrong?
F10 LS191 counting wrong?
Improper DVX11, 12  or DVY11, 12 ?
Improper OP1 or /OP1
etc.

Tim

-----Original Message-----
From: Kevin Moore
Sent: Dec 30, 2011 12:34 AM
To: vectorlist@vectorlist.org
Subject: Re: VECTOR: Analog section? Or alaphanum

Well replacement of the AM6012's and DAC08 made no difference.

Kevin


On Thu, Dec 29, 2011 at 5:57 PM, Mendel Pearl <mypearl@dds.nl> wrote:
Can you make the text align OK, disregarding the geometry of the diamond pattern?

I had a few games that did just that, perfect diamond or perfect text but never at the same BIP settings. In all cases one of the the AM6012 DAC's was defective. I would guess that if this is the case your Y DAC looks suspect. If the DAC is bad enough, it can distort the reference current sources output, thereby affecting the X output as well.

- Mendel



On 29-12-2011 21:44, Kevin Moore wrote:
Thanks for the input. But looking at the screen, I've adjust the bip to move the diamond pattern to touch the edges of the box. Wouldn't that also adjust any text problem.

If you look at the text it is in line, but the curved sections of the just B and D are wrong, kind of like the scale is messed up in the alphanum for those two specific letters.

Unless I'm not understanding how the bip works which is highly possible.

Kevin


On Thu, Dec 29, 2011 at 9:43 AM, Mendel Pearl <mypearl@dds.nl> wrote:
Your BIP adjustment is way off. If you cannot correct the problem using the BIP adjusts on the game PCB, your 6012 DAC or DAC reference current input is suspect.

- Mendel


On 29-12-2011 1:48, Kevin Moore wrote:

Put the BZ on hold and put a Red Baron on the bench.

Sorry for the backwards picture. For some reason when this analog board draws the letter B and the letter D the scale is off and it drops the text down to the last place drawn. Kind of like going to the next line.

Thanks,

Kevin

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