Bally SS Centaur. Weird Sh1t

[DRD]

Trying to get her ready for the League so expending some tlc and new parts.

I was going to post a "please help" message. But I have just cured the thing.

You cannot underestimate how tricky these old girls are ...

There was a problem with the switch matrix. I narrowed this down to switches 4, 12, 20, 28, (36 is not used), 44

All these are on the orange and black wire that comes from the mpu

When you triggered them in switch test, they do not register BUT they mysteriously turned on playfield lamps for the time they are triggered

This is freaky and actually looks like a design feature . .....

Switch 4 turned on the 4 collect bonus multipliers and the Queens chamber string

Switch 12 turned on a few others

Switch 20 turned on the 4 captive orb targets

Switch 28 turned on the power orb release in order targets

Switch 36 is not used

Switch 44 did not work at all, until I lifted the playfield .

So I investigated further and found intermittent shorts on two wires which were going to ground via the playfield hinge mech

All fixed, for now, but what cunning b@stards these games are.

 

[stoptap]

Glad you fixed it David because the guarantee expired last week.

 

[DRD]

I tried Bally's customer services line. No response.

 

[Paul R Owen]

Bad move human!