Having a sound issue with my Haunted House. 2 days ago it worked fine. Today I will get sound some games, others it will not have any, some it will start normal then turn into high pitch alien radio signal noise.
I've recently added leds to the playfield and backglass. At one point (okay 2 times) with the playfield up I managed to smash my forehead into the playfield... not sure of that would effect it but I'm including the information anyway. Other than that I haven't modified the game at all.
What I have checked tonight includes all fuses testing working, cleaning all connections on the boards with rubbing alcohol and reseating all connections multiple times.
When I click the test button on the sound board sometimes I get nothing and others a high pitch squeel.
Any help is greatly appreciated