Re: Tech: Asteroids Deluxe => Asteroids (almost got it)

From: John Robertson <jrr_at_flippers.com>
Date: Mon Dec 28 1998 - 16:05:57 EST

Hmmm, dang...crawling back into hole...I give up!

I think Ray and others are correct in this, I just forgot...must be
getting old. I'm off to the old farts home now...see you later...

John :-#)#

Ray Ghanbari wrote:
>
> John Robertson wrote:
> >
> > Joe, you need to reverse the wires going to the YOKE on the monitor. Get
> > out your ohmmeter and find the two pairs of wires (one for the Hor., one
> > pair for the Vert.) and reverse ONE pair and see what happens. You can
> > remove the pins with atiny screwdriver that is inserted into the slot
> > holdinghte pin, press gently and pull the pin out. Do not overforce or
> > you will either break the pin or the wire...
>
> This is odd. I thought Atari was clever to have the monitor and wiring
> harness wired as appropriate to the cabinet, not the game.
>
> In other words, when I pop my Asteroids Deluxe into my dedicated
> Asteroids, the image shows up properly. That is, the polarity of the
> video output from the PCBs is the same.
>
> Regardless, pins 16 and 19 are what you need to orient the display
> properly. If you ground the pin, it will flip the display. Don't wire
> it through on your adapter. Float these pins and experiment with ground
> them to a ground pin.
>
> I strongly suggest not messing with the yoke wiring unless you
> absolutely have to.
>
> Ray

-- 
 John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9     
 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)  
 mailto:jrr_at_flippers.com, web page http://www.flippers.com      
        "Old pinballers never die, they just flip out."
Received on Mon Dec 28 15:07:20 1998

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