X-Men repair log

Received from Portugal this Konami X-Men PCB (four players version )

Upon a quick inspection I realized the board was missing many parts.Specifically :

- The '051550 custom SIL (used for generating the master /RESET and  for coin counters/lockouts handling)

 

 One '005273' custom resistor array (used for inputs handling)

 A 74ALS04 @11H :

A 32K x 8-bit static RAM @2D (used for sound)

Lastly, there were deep scratches in the area of the '053251' custom ASIC as if some heavy object had fallen on the board :

Normally you would have given up to repair a board in such conditions but it's a good game plus I have an high success rate on this Konami hardware being familiar to me.So I fitted the missing components one by one :

Then I patched all the severed traces but at same time I had also to replace the '053251' ASIC because some pins were irreparably damaged :

After all this work time came to power the board up.I was quite surprised that everything seemed to work fine at first glance.I started a game and graphics, controls were good but sound was very faint even at highest volume setting:

Obviously the culprit was always him, the 'infamous' '054544' hybrid audio module :

I could have replaced it with a reproduction of mine but I tried to change all the surface mounted electrolytic capacitors on top :

And this was enough to restore a loud and clear sound!Evil Konami defeated again, see you to next chapter of this endless battle!