Hello everyone.
To get straight to the point - I recently bought a Sega Naomi 2 motherboard and it horribly smells like cigarette smoke (arcades must be so unhealthy!). I already cleaned the insides of the housing from some disgusting, pure black dust - especially the areas surrounding the main fan and the two secondary fans where heavily covered. Now, does anyone have an idea how to minimize the stench of this thing? It smells like an ashtray! Do things like this febreeze spray work? Any chance to clean the pcb at all or can only the plastic housing be cleaned?