Upgrade/Project Wonder Wizard™ Demolition Derby (Sentinel Inc, 1977) Is it Possible/Easy to unlink flippers?

[DrFistington]

I just got a 1977 Demolition Derby home pinball machine off craigslist that I'm fixing up, and so far it's been pretty easy, but I have one questions. There are two buttons for flipper control on the machine(one on each side), but when you hit either of the buttons, both flippers will flip.

I was wondering, what would I have to do to get the flipper buttons to work independently, so that the right bumper only controls the right flipper and vice versa?

Here is a link to a pdf of the manual for my machine, any suggestions would be greatly appreciated!

http://mirror2.ipdb.org/files/4891/Sentinel_Inc_Wonder_Wizard_Demolition_Derby_Owners_Manual.pdf

 

[Coil_Smoke]

Settings Error?

Is it possible you have a setting error? Some games have options to compensate for things that have malfunctioned. Is there a setting to compensate for a flipper switch malfunction? Your early solid state game may not have the options that have grown over the years but I thought is was worth a mention.

 

[faralos]

after reading through that manual (you better reread it yerself!)
the manual states that pressing in EITHER flipper button activates BOTH flippers
at the same time
so no I have no clue as how to use just one at a time

 

[JBD]

I just got a 1977 Demolition Derby home pinball machine off craigslist that I'm fixing up, and so far it's been pretty easy, but I have one questions. There are two buttons for flipper control on the machine(one on each side), but when you hit either of the buttons, both flippers will flip.

I was wondering, what would I have to do to get the flipper buttons to work independently, so that the right bumper only controls the right flipper and vice versa?

Here is a link to a pdf of the manual for my machine, any suggestions would be greatly appreciated!

http://mirror2.ipdb.org/files/4891/Sentinel_Inc_Wonder_Wizard_Demolition_Derby_Owners_Manual.pdf

I just got this machine & I was wondering the same thing!