Hello, I'm looking into this jamma board. Once upon a time it was starting but with no figures sprites but now it's giving error on ic33. A strange error actually:
IC33 fail 5CXXX IC33 PASS XXXXX
IC26 PASS XXXX IC14 PASS XXXXX
Since the game EPROM are 4: IC33,IC34,IC26 AND IC14 I'm suspecting there is an error on one IC33 that should be IC34. So in the end don't know which EPROM is failing. Checked all with downloaded ROMs and they match. So I'm suspecting on some other IC which is failing. Any hint? Also schematic would be appreciated. Have also the logic probe but no success for now.
Thanks
IC33 fail 5CXXX IC33 PASS XXXXX
IC26 PASS XXXX IC14 PASS XXXXX
Since the game EPROM are 4: IC33,IC34,IC26 AND IC14 I'm suspecting there is an error on one IC33 that should be IC34. So in the end don't know which EPROM is failing. Checked all with downloaded ROMs and they match. So I'm suspecting on some other IC which is failing. Any hint? Also schematic would be appreciated. Have also the logic probe but no success for now.
Thanks