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 :
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!
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