E2 Issues

[IDCHAPPY]

So, I noticed this at Revival, but the middle button on the top row (medium punch) seems linked for both players. P1 presses it and both characters punch, player 2 presses it and both characters punch, which is a bit of a sh*te if I'm hoping to run competitions on it.
Had an issue with the start buttons not operating too but seemed to sort itself when I wiggled the jamma connector, I think the Jamma connector has lost some teeth:

 

[grobda]

medium punch maps to jamma button 2? so thats pin 23, check continuity between top and bottom contacts. you can plug in the wee extender in that pic if its fiddly to do it from the jamma loom

 

[IDCHAPPY]

Ta Rick, I've got a new multimeter in the van... unopened

 

[retrorepair]

I'd say one of the "teeth" in your connector is bent backwards on itself and making connection with the P2 side. Has happened to me a few times. Easily sorted with some electronics/watchmakers tweezers.

On a side note the JAMMA connector on E2s has to be the worst of any candy cab and really lets an otherwise fantastic cab down. Too unreliable, non standard wiring and FAR too short to boot.

 

[IDCHAPPY]

TBH they have all taking a beating in the last 20 years, I try to keep the fresh fingerboards in them now to stop the original connector taking much more of a beating, I'll go have a closer look.

 

[IDCHAPPY]

Ok, wish me luck, I'm getting the multi meter out of it's packaging and going to investigate this

 

[IDCHAPPY]

I think it got to the bottom of this, I actually used the multi meter

, was getting continuity on the harness without the PCB plugged in the so looked at the adaptor and noticed the pins bent on it, tested the adaptor on it's on and found continuity on the pin for button 2.
Yey

 

[guddler]

I could have saved you a lot of time and effort on this problem!

Your issues three fold:

1. Too many buttons

2. Too many colours

3. (and most importantly) it's a fighting game

Be a good chap and stick something like pacman, galaga, etc. In it and yer problem's solved.

 

[IDCHAPPY]

It was my first bit of decent investigation, so I'm chuffed

.
So Retrorepair was 100% right