Hey all, working on expanding my education I picked up a Haunted House for my wife and going to try and bring the MPU back from the dead.
Looks like it had a battery failure at one time which someone removed but clearly some damage in the area.
When the machine is powered up you get GI lights, a few controlled lights (player shoots again) are locked on and you have attract sound.. and nothing else.
MPU has good 5 volts and when I checked pin 40 of the 6502 the signal never goes from low to high as it states on piwiki, it just stays at low. This would seem to indicate a failure of the reset section of the MPU.
So where would you start? My thoughts are a good cleaning of the area, upgrade the reset generator circuit per pinwiki and replace anything obviously corroded? Thanks for your input!