26 May
2010
26 May
'10
11:15 p.m.
Randy Dawson wrote:
Hi Dan,
If you still want to get rid of an non working asteroids board, count me in!
ok, no prob. I'll have to look for a second box first.
I can fix the others too, if you wish.
I could use another one repaired, just so I have a standby when I need
to troubleshoot anything.
If you don't mind, I like to trade you one for fixing one of mine.
The problem for most folks is that they will need a
vector type monitor, thats a little harder to find, but I see them out there for about
$300.
Wells Gardner if I recall.
Here's a interesting page on the vector generator...
http://jmargolin.com/vgens/vgens.ht
I like that wepbage, I haven't found that
before
I currently use these for reference.
http://www.ionpool.net/arcade/asteroidtech/asteroidsrepair.html
http://andysarcade.de/asteroids.html
Then there's this one that went offline that I was hoping that somebody
has it mirrored.
The internet archive has this but without the images
http://web.archive.org/web/20071110130808/gls1electronics.com/atari/asteroi…
I have access to several atari vector monitors too, they need work of
course, but I noticed that most of them have either the X or Y
deflection boards that are bad on these, which can be rather straight
forward to repair.
Ethan Dicks wrote:
I would love to have an Asteroids board. A friend of
mine has a Lunar
Lander that might need some tube work (I think he told me that when he
hooks the outputs to an oscilloscope, the logic section all works), so
it might encourage the both of us to get something fixed up.
Sure, no prob. I'll have to check on the box and weight and let you know
about the shipping costs still, all I'm asking is $20 for the board--I
hope it doesn't matter which rev it is, I have to check what's all here
int he box again. I have PayPal too. I recall that the boards have
various problems besides the xtal - which I swapped between boards for
testing. The Xtal is 12.096mhz, I found these at Mouser for 50cents
#520-HCA1209-SX.
I use my Tek scope and LA mainly for repair but I could use some tips on
fixing these. I found some good webpages about repairing these that
really help. I'm in the middle of building an in-circuit TTL chip tester
using a microcontroller that should speed things up, but is slow going
at the moment due to family priorities. I'm curious what other
diagnostic tools you might have for these boards.
Eric Smith wrote:
Carried to its logical extreme by (most) Infocom
games, as they
proudly explained in their "We stick our graphics where the sun don't
shine" advertising campaign with the illustration of a glowing brain:
http://www.atarimania.com/pubs/hi_res/pub_infocom.jpg
That reminds me of a little joke from over the years.
How do you tell if the computer game is vintage ?
When the graphics on the cabinet/box look better than the game itself :)
=Dan
http://www.vintagecomputer.net/ragooman/
