DDR - what type of battery?

modessitt

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is it a CR2325? I'm supposed to look at one in the morning that has "lost memory" and I want to take the right kind along.

No, I don't know which version...
 
Not real sure either, but I think you are on the right track. I'd bring a couple different batteries with you, if you've got them, just in case. I do believe that later revisions used a slightly different boardset, so it could be a different battery there as well. Sorry I can't be of more assistance.
 
Call ahead and find out. Version matters a LOT.

1st & 2nd (incl. Club) - System573 analog. Don't think it has a battery....
3rd-Extreme - System573 Digital. Again, don't think it has a batttery.
Supernova & Supernova2 - Python 2. May be a CR2325 or something SMT depending on the exact revision PS2 that was used.
DDRX - BemaniPC Type 4 -- Definitely a CR2325
 
Well, this says DDR Extreme, and it had a Lithium type battery that looks like a black box on the board. Doesn't open that I could see, and looks to be solder on. Game boots up with a RAM CLR message, telling you to push TEST at the Demo screen and redo the settings, but then it erases them when you shut it off and turn it back on and gives you the RAM CLR error message again...
 
Well, this says DDR Extreme, and it had a Lithium type battery that looks like a black box on the board. Doesn't open that I could see, and looks to be solder on. Game boots up with a RAM CLR message, telling you to push TEST at the Demo screen and redo the settings, but then it erases them when you shut it off and turn it back on and gives you the RAM CLR error message again...

DDR Extreme == Sys573 Digital. It's the newest mix you can upgrade a pre-SN machine to without replacing the whole computer, so it's overwhelmingly common. I thought they used a Flash ROM on the security cart to store scores and settings... guess I was wrong.

So, it boots and plays despite the error? That's certainly a good sign.

I'd just pull the factory battery, and add a battery in the cabinet with the same voltage and run wires. Does the customer happen to have any working 573 games? (Not necessarily DDR; cross-reference his gameroom with System16 (also here and here) to find a suitable reference machine to get the intended batttery voltage.)
 
DDR Extreme == Sys573 Digital. It's the newest mix you can upgrade a pre-SN machine to without replacing the whole computer, so it's overwhelmingly common. I thought they used a Flash ROM on the security cart to store scores and settings... guess I was wrong.

So, it boots and plays despite the error? That's certainly a good sign.

I'd just pull the factory battery, and add a battery in the cabinet with the same voltage and run wires. Does the customer happen to have any working 573 games? (Not necessarily DDR; cross-reference his gameroom with System16 (also here and here) to find a suitable reference machine to get the intended batttery voltage.)


Customer's only other game is a pinball. The game will boot and play if you push the TEST button during bootup, then change it to free play once it's up.

Of course, they won't want to keep it this way, and since they are probably Austin's richest residents, they will pay to have it fixed. I just want to see about fixing it properly...
 
hmm... the battery should be located inside the M48T58Y chip. i've never tried to slice up the chip to change the battery, but only replace them with a new one.
 
hmm... the battery should be located inside the M48T58Y chip. i've never tried to slice up the chip to change the battery, but only replace them with a new one.

I figured it was inside, but couldn't see how to open it.

Where do you get new ones? Is it thru-hole mount?
 
Thru-hole mount.

They are hard to find. Mouser has them from time to time and I still have 7 or so left here that are new ones I got from Mouser a couple of months ago.

They aren't cheap.
 
Thru-hole mount.

They are hard to find. Mouser has them from time to time and I still have 7 or so left here that are new ones I got from Mouser a couple of months ago.

They aren't cheap.

I'm not paying for it. Besides, you were gonna czech on a 5101 CMOS RAM for me...
 
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