Hi everybody! Here I go again!
During my last pinball hunt few days ago, I've found on a shelf a sys6 cpu as shown in the attached picture, already touched by someone who has tried to fix the acid leakage. It was missing of some IC like PIA, 6802/6808 and the 5101. So I decided to pick it up for a new challenge.
Once at home, I put the missing IC's and start the test with Leon's rom... test passed with my surprise! repair not beautiful to the sight, but efficacious!!!
Then I put a Blackout romset for the next test (the romset is fully working) but, once powered, the two LEDs don't flash. They come on and turn off quickly... here a short video

Any suggestion is appreciated
Thanks in advance guys!
Ciao

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PROBLEM SOLVED!
Following schematics and rechecking the connections from pad to pad, I've found that pin 3 and pin 7 of IC5 (74LS02) was not grounded... because it was missing the continuity with the "solder side" on the most upper right hole of the battery holder.
Fixing this connection, the board boots properly!
Thanks to everyone!
Ciao
Loris

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