Re: Asteroids graphics and sound issue

--- On Wed, 3/24/10, teeray <teeray@earthlink.net> wrote:

> From: teeray <teeray@earthlink.net>
> Subject: Re: VECTOR: Asteroids graphics and sound issue
> To: vectorlist@vectorlist.org
> Received: Wednesday, March 24, 2010, 2:19 AM
>
>
>
> -----Original Message-----
> >From: andre <livnfree_can@yahoo.com>
> >Sent: Mar 23, 2010 10:17 PM
> >To: vectorlist@vectorlist.org
> >Subject: Re: VECTOR: Asteroids graphics and sound
> issue
> >
> >
> >
> >--- On Tue, 3/23/10, teeray <teeray@earthlink.net>
> wrote:
> >
> >> From: teeray <teeray@earthlink.net>
> >> Subject: Re: VECTOR: Asteroids graphics and sound
> issue
> >> To: vectorlist@vectorlist.org
> >> Received: Tuesday, March 23, 2010, 5:38 PM
> >>
> >> >>>>>>-----Original
> Message-----
> >> >>>>>>On Sun. 3/21/10, at 2:53
> PM, andre
> >> wrote:
> >> >>>>>>
> >> >>>>>>I am fixing an asteroids
> cocktail
> >> for a friend. It originally had just the
> >> >>>>>>p1/2 lights flashing non
> stop. I
> >> replaced the eprom sockets and all of the
> >> >>>>>>ram following the test
> tones.
> >> >>>>>>Now it works..sorta..
> >> >>>>>>
> >> >>>>>>It has 2 issues.. the
> first is a
> >> graphical issue. The gamefield fills the
> >> >>>>>>screen fine, but
> everything is
> >> microscopic.. the ship and asteroids are only
> >> >>>>>>a couple mm big, and you
> can see
> >> the text.. it looks like text.. but far too
> >> >>>>>>small to read. You can see
> your
> >> shots and the ufo's shots. I have replace chips
> >> >>>>>>in the scaling circuit at
> K5, K7,
> >> M7 and swapped a good 7497 through the 4
> >> >>>>>>socketed banks all with
> no
> >> difference. I also tested Q7 and Q9 as good..
> >> >>>>>>not sure where to go from
> here.
> >> >>>>>>
> >> >>>>>>2nd issue is in the
> sounds. All
> >> sounds are fine except for the player's shots,
> >> >>>>>>and the ufo's firing
> sounds. They
> >> sound more like morse code tone when you fire.
> >> >>>>>>I checked Q1, Q5. Replaced
> a few
> >> electrolytics, changed n9 on the basis of
> >> >>>>>>another repair log, c65..
> I do not
> >> have any ls259's for M10, and have not
> >> >>>>>>checked the 324 at L8
> which I think
> >> is the only thing in common but not sure
> >> >>>>>>if that would do it?
> >> >>>>>>
> >> >>>>>>
> >> >>>>>
> >> >>>>>
> >> >>>>>On Mon, 3/22/10, 1:10 PM,
> teeray
> >> wrote:
> >> >>>>>
> >> >>>>>Scale - Check the ls161's D7,
> C7, B7
> >> >>>>>
> >> >>>>>Sound - Check L8, M9
> >> >>>>>
> >> >>>>>Tim
> >> >>>>>
> >> >>>>>
> >> >>>>
> >> >>>>
> >> >>>>On Mon, 3/22/10, at 9:44 PM, andre
> wrote:
> >> >>>>
> >> >>>>Thanks.. the 4016 at M9 was the
> sound
> >> culprit.. after replacing that I lost the
> >> >>>>thump sound.. So replaced the 555
> at N8 and
> >> got that back.
> >> >>>>
> >> >>>>So far in the scale section I have
> replaced
> >> E7, M7, F6 and comparator'd
> >> >>>>B7,C7,D7,A9,M6,A9 and all come out
> ok...
> >> The more I look at it it might not just
> >> >>>>be scale.. everything is very
> tiny, but I
> >> notice especially when something
> >> >>>>explodes, the explosion is along
> a
> >> horizontal plane.. it has a brighter dot at
> >> >>>>each end with smaller dots
> inbetween with
> >> the line about a 1/4 inch long. Also, it
> >> >>>>does not take one of the micro
> asteroids to
> >> hit the dot that is the players ship
> >> >>>>exactly for a collision.. if its
> about a
> >> 1/4 inch away on the screen for the ship
> >> >>>>it will be a collision.. if it was
> 'just'
> >> scale I would think the dots would need
> >> >>>>to physically meet.
> >> >>>>
> >> >>>>
> >> >>>
> >> >>>On Tue, 3/23/10, 1:36 AM, John
> Robertson
> >> wrote:
> >> >>>
> >> >>>  If you have a logic probe or
> 'scope,
> >> check the inputs to the DACs to make
> >> >>>sure all data lines are toggling. If
> the most
> >> significant bits are not then
> >> >>>backtrack from there. If all bits are
> toggling
> >> then check your +/- 15VDCsupply...
> >> >>>
> >> >>>Heck check ALL the voltages first and
> save some
> >> time! I think you may have a
> >> >>>missing supply on the logic board...
> >> >>>
> >> >>>John :-#)#
> >> >>>
> >> >>>PS, please don't  top post - post
> under
> >> the reply - and also do not clip off
> >> >>>previous portions of messages (you can
> trim
> >> small bits if it helps clarity)
> >> >>>as it gets harder and harder to track
> the
> >> progress of the troubleshooting
> >> >>>process if we have to open older
> messages to
> >> see what the original complaint
> >> >>>was! Thanx.
> >> >>>
> >> >>>--
> >> >>>John's Jukes Ltd. 2343 Main St.,
> Vancouver, BC,
> >> Canada V5T 3C9
> >> >>>Call (604)872-5757 or Fax 872-2010
> (Pinballs,
> >> Jukes, VideoGames)
> >> >>>           
> >>      www.flippers.com
> >> >>>"Old pinballers never die, they just
> flip out"
> >> >>>
> >> >>>
> >> >>
> >> >>
> >> >>On Mar 23, 2010 11:30 AM, andre wrote:
> >> >>
> >> >>Was not aware every one was top posting..
> I am just
> >> replying from my mail program..
> >> >>is there some other way to reply so they
> follow in
> >> a thread?
> >> >>
> >> >>
> >> >
> >> >
> >> >On Mar 23, 2010 4:25 PM, teeray wrote:
> >> >
> >> >Could you post a picture of the screen, also
> one of the
> >> test screen
> >> >somewhere for us to see.
> >> >
> >> >Does the test screen display OK, just
> microscopic?
> >> >
> >> >Tim
> >> >
> >> >
> >>
> >> For the picture to look correct but just be small.
> It has
> >> to be something
> >> affecting both the X and Y outputs.
> >> Maybe F10
> >>
> >> Tim
> >>
> >>
> >
> >www.contoursurveys.com/ast1.3GP
> >
> >is a video from my blackberry.. could probably try for
> a snapshot with a better camera to be clearer. You can see
> the flashing text, the text at bottom and the asteroids
> flying around.. when the UFO comes out notice it doesn't
> contact a dot to explode.. just near one like the actual
> size/collision is still working. Also notice when it
> explodes it goes into a line of dots instead of a small,
> expanding explosion. I switch over to the test mode and its
> nothing really recognizeable.
> >
> >
>
>
> If I am seeing this correctly. The screen is full size just
> asteroids and ship
> are tiny. Shots look to be correct size.
> Have you checked the ROM chips? The vector generator ROM or
> select line.
> When in test mode press reset - do you hear any beeps that
> indicate RAM failure?
>
> Still looks like a scaling problem, but you should still be
> able to make out
> the test screen, I would think.
>
> Tim
Yes the screen is full size, just everything is minature on it. But, its not minature and keeping the same structure as the explosion should still be small and expand out in all directions but it doesn't.. it explodes in a flat line of dots. And actually the asteroids are like very small lines now that I look at it. If it was just scale, yes.. I would think the test screen should be minature as well and identifiable as the the screen which leads me to think its mnore than that...All you get is the dot in the bottom left and the jumble in the center.
For the Roms I have replaced all sockets..thats it. I have replaced all ram with new and get no more tones. When I first started on it there were ram tones and I replaced one by one. __________________________________________________________________ Ask a question on any topic and get answers from real people. Go to Yahoo! Answers and share what you know at http://ca.answers.yahoo.com
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Received on Wed Mar 24 11:41:20 2010