hatrick
Well-known member
When I plug a Marble Madness cart into my System 1 cab, the upper LED on the main board flashes and the screen shows some barely visible garbage that flashes in time to the LED. When I switch it into test, it passes all test, looks fine, sounds work, etc.
If I switch it from test to game mode a couple times, then it boots and works fine, LED stops flashing.
It will just never boot correctly straight from game mode. Voltage on the MM board is 5.04. All other carts I've tested in this cab work fine. It's the older version with the transformer brick, two big blues, and an ARIII (no switcher).
Any ideas what may cause this?
Thanks,
If I switch it from test to game mode a couple times, then it boots and works fine, LED stops flashing.
It will just never boot correctly straight from game mode. Voltage on the MM board is 5.04. All other carts I've tested in this cab work fine. It's the older version with the transformer brick, two big blues, and an ARIII (no switcher).
Any ideas what may cause this?
Thanks,
