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Sega Rally 2 battery

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Macresco

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I'm completely new to the arcade side of things and I was wondering if the Sega Model 3 step 2 has a battery that saves the high scores?
One side of my cab doesn't save the high scores and I was wondering how I could replace it.
If I look in the cab itself I don't see any battery. there's three layers though and I'm a bit reluctant to start disassembling it without knowing if there's actually a battery and how this thing should be disassembled.
So any help on that would be great.
 
The manuals were meant for operators back in the day, when the games were new. The battery dying wasn't something that would have happened.
 
It's not as difficult as it might look. Open up the metal cage and locate the communication board on the top part of the stack.. the long thin one that's not in the photo linked to above (because that stack doesn't have one).

In the photo you'll see the security board.. the small square one, but Rally 2 doesn't use one of these so you won't see that on yours.

Remove the screws that secure the comm board in place, you don't need to remove all screws on the stack. You will need to slide out a couple of the plastic standoffs and then you can gently pull off the comm board from the PCB connector.

Underneath you'll see the CR2032 battery (as in the photo). Just flick it out with a small flat blade screwdriver and replace with a new one. Then carefully reinstall the comm board, slide in the standoffs and screw back together. Double check everything is securely back in place and fire up.

There is a supercap on the board that is supposed to store settings while you change the battery, but if your battery is a long time dead it won't play any part on this occasion.
 
outrun2 said:
It's not as difficult as it might look. Open up the metal cage and locate the communication board on the top part of the stack.. the long thin one that's not in the photo linked to above (because that stack doesn't have one).

In the photo you'll see the security board.. the small square one, but Rally 2 doesn't use one of these so you won't see that on yours.

Remove the screws that secure the comm board in place, you don't need to remove all screws on the stack. You will need to slide out a couple of the plastic standoffs and then you can gently pull off the comm board from the PCB connector.

Underneath you'll see the CR2032 battery (as in the photo). Just flick it out with a small flat blade screwdriver and replace with a new one. Then carefully reinstall the comm board, slide in the standoffs and screw back together. Double check everything is securely back in place and fire up.

There is a supercap on the board that is supposed to store settings while you change the battery, but if your battery is a long time dead it won't play any part on this occasion.
Click to expand...
Thanks for the explanation. I took a look before and I think I do have the security board. Not that it matters, i'll try to replace the battery this weekend
 
Well I've changed the battery. Played a few games and didn't do anything for a few days. Today I boot up the cabinet and the side where I changed the battery is not booting. The fans are spinning and the screen seems to might up but no game. Nothing on the board lights up. Other cabinet has a red light in the power supply. The faulty one doesn't. Other side runs just fine. What is the best way to troubleshoot this.
 
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If there's no light on the power supply then it's either faulty, or there is a problem with the 100VAC supply to it. Check connectors.

There is 100VAC in the cab as the fans and monitor will run off that. The drive boards should have lights on too.

Old Model 3 power supplies can be dodgy but if they sometimes fail to run the board you should at least see signs of life from it.
 
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outrun2 said:
If there's no light on the power supply then it's either faulty, or there is a problem with the 100VAC supply to it. Check connectors.

There is 100VAC in the cab as the fans and monitor will run off that. The drive boards should have lights on too.

Old Model 3 power supplies can be dodgy but if they sometimes fail to run the board you should at least see signs of life from it.
Click to expand...
Yeah the fans work. Lights on the board do not.
 
Sometimes it boots sometimes it doesn't. Sometimes it boots after I've been playing on the other side for a while.
I will probably crosspost this to the Sega model 1/2/3 sub here
 
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