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I had already taken a look at "The Secret Life of..." series when I was troubleshooting a previous issue with the machine. Good read. I'll take a look at it again for this issue. My main plan is to basically make an AI that can play asteroids. The machine will in some way (current thinking is a...

I'm working on a rather unique project that involves a desktop computer interfacing with my 1979 Atari Asteroids Upright. I've determined that the best way for the computer to monitor any particular point on the board would be to use a logic analyzer. I'm having some issues determining exactly...

Hello everyone! My asteroids is up and running again successfully! I purchased the Kit #2 (the HV diode replacement parts and the cap kit for the EHT). I Got some Goop just like the instructions said and got to work. The hardest part was getting the Cap + 2 HV Diodes to lay flat, but I finally...

I did some research and found the following HERE: If you take a look at my original description this coincides with the "asteroids flying away from the center" I stated in the original post. This may have been the voltage doubler failing and exhibiting the "zooming" affect. I'll update as I...

Continued from previous post. Click images for full version: Deflection Regulator Enclosure

I went ahead and replaced the fuse with the factory recommended fuse (250V 7A) and the machine turned on and played. Still blind. The game board LED is on as expected but the Spot Killer is off (also to be expected). I can listen and hear some mild clicking from the Electrohome. I think this is...

So there was an edit to my previous post that nothing on the game board was working. I have the Electrohome G05 which has the two exposed boards plus the high voltage cage (as in your first picture). I reinstalled the monitor, plugged it in and the monitor did not work but I was able to hear...

So, I reflowed the HV cage and the deflection board (the one with the two large tall blue caps). The screen still does not work but I think something may have changed. The Spot Killer light is now on but very dim. I thought I remember specifically looking at it and noticing it was off but I...

Will remove and do that tonight. Any suggestions for safety when dealing with these boards? Whats a safe way to discharge the big caps on these? Edit: After some research I'll check the voltage on the caps and discharge them with a resistor or a bulb.

A friend of mine's father in law apparently fixes coin-op stuff. I sent him this post also, here was his response: Thoughts?

Hello everyone, I have a Asteroids cabinet that is playing blind. As far as I can tell all game feature work including sounds/buttons. Self-Test mode does not display anything on the screen. The red LED on the game board is lit while the system is on. The red LED on the pale board next to the...