Terminator 2: Judgment Day
Williams, 1991I just got a Terminator 2 running the Rottendog MPU. It has a remote battery pack but I HATE batteries and refuse to use them when NVRAM is available so cheaply.
Has anyone socketed the chip on the Rottendog board? Is this difficult like the Williams original MPU was or more middle of the road? I do have a Hakko desoldering gun. My solder skills are average - I have capped maybe 10 monitors and replaced some transistors and resistors here and there.
Yea you can use a NVRAM on the board. I installed 2 for friends over 2 years ago and I seem to recall the old RAM was already in a socket.
Can you post a picture of the board?
Quoted from PinballManiac40:Yea you can use a NVRAM on the board. I installed 2 for friends over 2 years ago and I seem to recall the old RAM was already in a socket.
Can you post a picture of the board?
Whoa...is that right? I have one in my Shadow, 1 of the last 2 with battery packs. Hmm, I'll take another look.
Quoted from brainmegaphone:I can post a photo later but when I looked last night it was not socketed.
Whaaaat?? I cannot imagine why in the world this would not be socketed 
If it is like the stock photo, I can socket it for you if you need the help. I must had been lucky on the boards that I traveled across town to do for them.
Quoted from brainmegaphone:This is stock image - I believe ram is the last one... no socket. Am I wrong? I hope I’m wrong because I’d prefer a drop in solution lol.
Yes, I just checked mine..
I appreciate the offer. I’m curious how hard this one is to do. I heard the original WPC was the worst to socket. If this one isn’t that bad I can probably do it.
Quoted from kvan99:Yes, I just checked mine..
Yes, yours is in a socket.Rottendog WPC-S NVRAM (resized).jpg
Quoted from brainmegaphone:I appreciate the offer. I’m curious how hard this one is to do. I heard the original WPC was the worst to socket. If this one isn’t that bad I can probably do it.
No harder to do than any other that is not socketed. Personally, I always cut the old RAM out by clipping the pins at the body of the old RAM and then heat each pin and remove them.
I suggest taking a picture of the board once the old RAM is removed so that you can zoom in on the pads and traces to be sure you didn't damage anything. And if you did, it will easy to spot at least and save a lot of troubleshooting time beeping out the traces.
Quoted from PinballManiac40:No harder to do than any other that is not socketed. Personally, I always cut the old RAM out by clipping the pins at the body of the old RAM and then heat each pin and remove them.
Right on PM!...I'll take care of it this week.
Quoted from kvan99:Right on PM!...I'll take care of it this week.
Thank Rottendog for that. 6264 NVRAM is what you'll need.
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Piershil
Cleveland, OH