7 Dec 2016

Rush & Crash (The Speed Rumbler) - Capcom 1986 (repair log)

I got this game in very good condition (lacquer was still shiny).
At power up I was greeted by a black screen and no sound.


This board was populated by a lot of Fujitsu chips... First step was to identify and replace all the dead Fujitsu chips. After a first batch (around 20 ICs) I managed to get something on screen:




Then I had to change more bad Fujitsu chips with floating inputs, harder to diagnose.
Each time I ran the game in the hope of any improvement:













To finally obtain correct graphics:






The battle wasn't over as the game was still silent. The audio RAM @ 3F (on top board) was dead. Replacing it restored the sound.


Game fixed.

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