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(Topic ID: 256512)

atari spce riders


By dobo

11 months ago



Topic Stats

  • 14 posts
  • 5 Pinsiders participating
  • Latest reply 9 months ago by misterschu
  • Topic is favorited by 1 Pinsider

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VID_20191128_221525 (resized).png
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#1 11 months ago

I bought an atari space riders the other day and I'm looking for some advise. I cleaned it up and it looks really good now. I turned on the machine and it fires all the coils and lights off and on, off and on, off and on and then the speaker makes a weird noise. That's it. So then I shut it off. I don't know where to start with these machines and I see the mpu has a lot of traces that has been fixed with wires. I'm waiting for a manual I got on e-bay for the machine. But one thing I know the lights and coils work! I think it might be a quick fix but where do I start?

#2 11 months ago

Might want to start by checking out the test button (should be on the door). It might be stuck or shorted.

#3 11 months ago
#4 11 months ago

This is a pic of the mpu. I have a video on what the machine does. When I would close the door or just hit the door button in and the game is on it would start to do this. I'm not sure if there is any sound in the video but just image all the solenoids turn off and on with the lights.

IMG_20191128_213736 (resized).jpgVID_20191128_221525 (resized).png
#5 10 months ago
Quoted from dobo:

This is a pic of the mpu. I have a video on what the machine does.

The video did not post. All I got was a .png file.

#6 10 months ago

yeah I tried didn't work out

#7 10 months ago

Maybe this will work

#8 10 months ago

I think you said this starts after you push the test button? What does it do before you push the test button?

I'm guessing you switched it off at the end there? It appears to be resetting over and over. If the computer isn't working properly it will reset by itself about 4 times per second and try to regain control. (If you have a logic probe or a scope this can be checked at chip A10, pin 9.) It seems like that is what's happening.

Not sure about your tech level but all the power supply voltages will need to be checked, and then the board probably needs to go on the bench for repair.

#9 10 months ago

I have a space riders and ended up sending both the mpu and auxiliary boards to -ebay.com link » Atari Pinball Machine Cpu Board Repair Service He did a great job on the boards.

I also have a spare working auxiliary board if needed.

#10 10 months ago

no I turn the machine on with the door open and push the door switch in and then it starts doing that. So basically when you have the machine on and the front door closed. I ordered a manual for the game and I will start with that.

2 weeks later
#11 10 months ago

I had a look at the machine today. I checked all the voltages at the fuses on the power supply. All of them were good accept the solenoids and lamps. There was no voltage at the fuse holders, which is weird because it seems like that is the only things working, but just wrong. It seems like the solenoids and lamps are getting there power through the logic circuit. When I take the logic fuse out and turn the machine on the lights and solenoids don't work. I checked all the bridge rectifiers on the power supply and they seem good. When I did disconnect the aux board it seems like the lamps go off when turned on but the solenoids keep going off and on. I'm not sure where to go next but I know I have to get the voltages right for the lights and the solenoids.

#12 10 months ago

Sounds like you might not be measuring the voltages correctly if it's powered and yet you don't have voltage. Sorry, I don't have a manual today or I would point you to the right spots.

#13 10 months ago

That's ok it looks like I should have 17vac at the lamps. And It says 0V at the solenoid fuse. But it seems like there is a relay kit with a diode cr22, that keeps going off and on with the lamps and solenoids. I checked the diode and it seems like I have resistance both way so I ordered a new diode 1N4005. I figured I would start there.

2 weeks later
#14 9 months ago

I'm currently working on my Space Riders, so I'll try to offer some help.

Diode CR22 is part of the Flipper Relay kit. (I don't think it's part of the problem you're currently experiencing).

In the video you've shared, there are solenoids firing, so your solenoid circuit must be getting power. Can you post a clearer picture of your Processor PCB? and a clear picture of your AUX PCB?

The solenoid circuit provides the power to the solenoids, the logic circuit provides the signals that activate the solenoids (and the lamps). When you pull the Logic fuse, the logic circuit is unpowered, and thus no longer sends the incorrect activation signals to the solenoids and lamps.

My guess at this point is that your game ROMs or MPU are causing the issue. I can check my boards when I get home, but my first guess is actually that your ROMs are in the wrong slots (based on this image https://www.pinwiki.com/wiki/images/5/57/Atari-space-riders-mpu.jpg from https://www.pinwiki.com/wiki/index.php?title=Atari_Repair)

Can you confirm that you have checked all the fuses to confirm they are the correct ratings? F1 on the power supply (bottom fuse) should be changed to a 5A slo-blo (from 15A fast blow).

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