I am trying to get the MPU board in an Arena game working. The game is totally dead at turn on--no sounds, no feature lamps, just the GI lamps. All power supplies are good. I have removed the reset board. With the board on the bench (and the slam switch input jumpered) I get partial operation. Address lines 0-5 are running, 6 has a ~1vpp signal at a logic high (it does have normal levels for a moment after reset), 7-11 are either high or low (static), 12-14 seem ok. There is data on the data bus. No strobes for the switches, display or lamps. Clock signals are normal, R/W is active. IRQ is high, reset is high. I have replaced the 6502 and the 5101. I have removed the daughter board and reflowed all solder connections on the connector.

I would appreciate any suggestions anyone has--or any knowledge of what the signals should look like on the bench

Forgot to mention in the first post that I have verified the checksum of both PROMS, so they are also OK.

Thanks for everyone's suggestions and comments. I contacted Marco and he sent me the files for his ROMs. I finally got my PROM programmer to work and have some EPROMs coming in the mail. I added a LED to the daughter board so I should not need the adapter.