Re: Asteroids graphics and sound issue

Scale - Check the ls161's D7, C7, B7

Sound - Check L8, M9

Tim

-----Original Message-----
>From: andre <livnfree_can@yahoo.com>
>Sent: Mar 21, 2010 2:53 PM
>To: vectorlist@vectorlist.org
>Subject: VECTOR: Asteroids graphics and sound issue
>
>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?
>
>
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Received on Mon Mar 22 13:11:27 2010