nvram battery eliminator
- Thread starter rockhouse
- Start date
Jim @myPinballs does them, got one for my addams and it works a treat
http://mypinballs.com/electronics/magic_ram.jsp
http://mypinballs.com/electronics/magic_ram.jsp
myPinballs makes a one called MagicRam. I've used them before, it does the job perfectly fine 
http://mypinballs.com/electronics/magic_ram.jsp
http://mypinballs.com/electronics/magic_ram.jsp
Ahem !
@lukewells does one too I think.
Yes he does
I was going to get one of Jim's, but you have to remove a chip and solder in a socket for most WPC games I think.
I came unstuck when it came to cutting off the chip, can anyone link to the best tool for this?
I came unstuck when it came to cutting off the chip, can anyone link to the best tool for this?
something like this should do the trick
http://www.amazon.co.uk/Plastic-Coa...8&qid=1437745796&sr=1-2&keywords=side+cutters
then desolder each pin, add new socket and plug new chip/circuit in. done
I used a Dremel with a cutting disc to remove an IC from my MPU board.
Ians approach is probably safer if you can get onto snip the legs ok, heres some useful instructions
http://www.pinrepair.com/begin/#howdesold
http://www.pinrepair.com/begin/#howdesold
I actually used a desoldering tool but probably a bit expensive for 1 socket..
Careful - those taxes are amongst the thinnest I've ever come actress. Trashed one board trying to do it... And I'm pretty good at soldering!
predictive text playing up?
got a link
These 'freeze' the clock when the machine is off presumably?
I think Carl is saying that you lose Date:Time settings on your pin with the NVRAM option.
Ymmv as to whether that's an issue for you though. I must admit I don't use the Date:Time on Pins as anything other than an indicator the batteries are still functioning
Ymmv as to whether that's an issue for you though. I must admit I don't use the Date:Time on Pins as anything other than an indicator the batteries are still functioning
What machine is is for @rockhouse ? Would a 1981 machine use date time?
- Joined
- Jul 21, 2011
- Messages
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You could replace the battery with a memory backup capacitor.
Here's a pic of the Cap fitted to my Gold Ball MPU
Please don't go cutting chips off with dremels. You'll get little metal fragments shorting out under chips and all sorts, i get boards sent to me like this when someone cuts off a chip and then can't get the board working again afterwards. If you want chips desoldering I have the proper tools and can do it for a nominal fee.
I also have NVRAM chips for pretty much any game except old Gottliebs. Send me a message if you need something sorting
I have Bally/Stern NVRAMs in stock sir
- Joined
- Jul 21, 2011
- Messages
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Depends how big you go for. Don't have any real numbers but I'd say typically 2-3 months without switching on. If you use it a few times a month it'll stay charged up.
do they leak?
If you own an original Xbox, then you'll see that the memory capacitor does indeed turn nasty after a few years. Of course not all brands are made equal.
Memory capacitors are generally going to be more reliable than batteries
£23 with first class recorded delivery assuming you are after the 5101 module? (for old Bally/Williams/Stern)
