Re: One other G08 Monitor question

OK - it looks to me like the x or y axis is not offset on the scope - but
let me ask if I'm setting this up right. Do I connect channel 1 probe
onto pin 1 (x) of the xy timing board and channel 2 probe onto pin 4 (y)
of the xy timing board? And then set the oscilliscope onto xy mode? I
was sort of hoping it was possible to watch my game on the oscilliscope.
Maybe even play one or two rounds :)

Seriously - learning this will really help me with other xy games I'm
working on - so thanks for the input.

Matt

> If you look at the X and Y drives from the game board
> do they appear to have zero offset? (That's a little tricky
> to test---feed both into a scope in XY mode and adjust
> scope gains/centering for a good picture. Then set the
> scope inputs to ground and make sure the dot is centered.
> Turn the scope inputs back on and look for the picture to
> be offset in any direction. If it is, the board can be the
> problem. If it looks OK the monitor is the problem).
>
>
> Matt Rossiter - Verio Southern California wrote:
>
> > Well - I've actually got this thing completely fixed and looking pretty
> > good. I'm just doing some fine adjustments to it. My question is this....
> >
> > On my Space Fury - I put the game into service mode where it will draw you
> > a rectangle with three colored stripes in the center to adjust centering,
> > convergence purity, etc. Well, my rectangle looks more like a trapezoid.
> > My suspicion is - someone at the factory got lazy when adjusting the
> > deflection yoke and didn't put the wedges in with the exact same preciseness
> > that I would have if I was doing it. So I guess I might have to pull the
> > wedges off and do the adjusting myself. I've done this with several other
> > monitors and it's a big pain.
> >
> > Anyway - the question is - could there be anything else that is causing
> > the picture to pull to the right? It's not so noticeable during game play
> > except that some of the convergence goes out in the corners (Which bugs me
> > of course).
> >
> > Thanks
> >
> > Matt
>
>
>
Received on Thu Dec 17 04:33:20 1998