Re: 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, 4:25 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?
> >
> >
>
>
> 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
>
>
It doesn't look like a microscpic test screen.. just some blobs in the center.. I'll get a couple pics for tonight..its actually a pretty cool looking issue. __________________________________________________________________ Make your browsing faster, safer, and easier with the new Internet Explorer® 8. Optimized for Yahoo! Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/
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Received on Tue Mar 23 18:38:15 2010