Hmm

I just went threw this on a firepower and a,flash... I ended up buying a rottendog board for firepower and wham

Came to life.. I only had gi as well.

Flash I ended up scoring a few rehabbed boards .. ended up being the 40 pin was shot.. I relocated the batteries and all is well on both ..

Check the 40 pin connects .. reseat them.. and I keep my pin room at about 60 degrees.. weather will mess with them I learned..

Your in Florida I c.
Prob not to cold.. lol

Check your battery voltage to..

I had the same problem on my BK for a long time, but it was intermittent and manifested a bit differently. In my case, *sometimes* when i turned the game on, I'd notice a coil fire immediately then it wouldn't start a game and I'd find the 2.5 amp coil fuse blown. I'd replace the fuse and sometimes it would work fine. Might even work for weeks without incident and then one day...pop goes the fuse, and I'm back to square one. I finally summoned the determination to track down the issue and it turned out to be a few components on the mpu for the blanking signal. There was a little 555 chip, and a couple other components (cap and resistor, possibly a transistor)... After changing those parts, i haven't had a problem since! Maybe your game has a similar issue with the blanking signal?

Biggest problem is cold solder joints on pins and the 40 pin interconnect having weak sockets, after fixing that you will have alot less problems.

Yup.. they can be a pain.. I c you profile pic is tomcat .. I'm picking one up tonight ..

Haha.. I hear ya.. good luck and look at that pesky 40 pin ..

Was my first pin purchase that started this addiction, waiting for my new repro playfield thats in the mail now, pretty fun game when waxed and working proper (fast as hell)

Sorry playfield is for f-14, but you can find repro firepower playfields for sale now and then.

One small fracture in the connection and your doooomed.. I tried the same with no luck.

Say what... Put me on the list. Search back 2 or 3 years here and you can find a few change hands. SOMEONE needs to do another run!!!

Yea every now and then you see one, not often, but more often than f-14.

Which 1/2 did you replace, the pins or the sockets? I would suggest replacing both sides.

Carefully lift all socketed chips 1/16" and push them back down to see if that changes anything. If any of the sockets are Scanbe brand, you need to replace them as they are problematic.

Reflow the solder, or better yet replace all the header pins on all boards.

Make sure you have all the mounting screws in all the boards installed and snugged down.