Error 12 Weirdness/Bent EPROM pin (I'm addicted)

[Yoeddy1]

So check this out:

My S Jackpot Jungle all of a sudden started generating random error 12 codes.  Usually opening and closing the door would resolve them, but as of a day or two ago, they almost ocurred on every other spin.  Keep in mind I've only had this machine for a month or so.  As you can see below, the previous owner installed a 3 AA battery pack.  I figured maybe the problem was due to an actual issue concerning the batteres.  I changed them out...no help.  I paid next to nothing for this machine, but I was a bit worried as parts are obviously scarce for S machines.

Anyway, I decide to open up the machine and pull the board out.  As I'm inspecting the board I notice that the chip that I have circled in the photo below had a bent pin that wasn't even seated.  I pulled the chip, and this pin was mangled, as were some of the others.   I spent about 15 minutes straightening out the pins.  I reinstalled the chip and walla!  It came back to life and I haven't had an anomaly since.  *Knocking on wood*

My question to the gurus is, what is that chip that I highlighted and why would i generate a battery condition? 

Guys, I'm getting addicted to tweaking my Slot and newly found CEI Draw Poker machine!  I almost love looking at them, cleaning them, and fixing them more than actually playing them.  My wife thinks I'm crazy.      Anyway, thanks as always...you guys are great!

[stayouttadabunker]

Yes,
That's really the fun part about owning these machines...LOL...working on them...
personally, I don't mind when something goes wrong -
I just try to found out what happened and get right into it again...LOL
Crazy? well, that's a little harsh...   how about OBSESSSED!!!!

Naw, it's a hobby like no other...
get your self an old pinball machine and
then you really see what tinkering with old machines are all about! LOL
I spend more time in my workshop than watching football,but
it all evens out with a nice round of golf with your buddies...
My wife loves to actually "play" with the machines I put together...

Now, error code 21?  battery is dropping below required threshold of like I dunno voltage...
basically it's dying out! LOL
Bent pins? That's never a good thing but,  so what?
All you gotta do is straighten them out and push 'em back in the sockets..LOL
That wasn't hard wasn't it?

Good sleuthing job on the bent pins and getting your machine back on track!

[uniman]

That chip looks like a ram chip.
Possibly the bent pins were intermittently shorting and creating a voltage drop on the board which generated the errors.
Openning and closing the door might have been enough movement to stop the short.
Amazing the machine worked at all.