Any 4 player Demo Derby owners....have a question for ya!!

tec9

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Any 4 player Demo Derby owners....have a question for ya!!

Hey-
If you have a four player Demo Derby, can you help me out? I have a 4 player machine that was working fine, but started acting up. The problem is with the cars kinda steering by themselves. Barely noticable, but I'd like to fix it. Anyways the question I have for anyone who own this game is:
Flip the test switch and enter "player inputs"
1-What is the value of all the wheels, when you first power up the machine without turning any of them? If you power the machine up and down several times do they always read the same value?
2-If you press the start buttons very rapidly, do any of the values/ position of the wheels change/ flicker for a second?

Thanks!
Mark
 
Hey-
If you have a four player Demo Derby, can you help me out? I have a 4 player machine that was working fine, but started acting up. The problem is with the cars kinda steering by themselves. Barely noticable, but I'd like to fix it. Anyways the question I have for anyone who own this game is:
Flip the test switch and enter "player inputs"
1-What is the value of all the wheels, when you first power up the machine without turning any of them? If you power the machine up and down several times do they always read the same value?

All wheels start at zero.

Powering down and up again resets them to zero.

2-If you press the start buttons very rapidly, do any of the values/ position of the wheels change/ flicker for a second?

No.
 
Don't own one, but analog device values can fluctuate a tiny bit like that. Especially when they are older than shit and/or could use recentering.

Your game more than likely tares when it starts up anyways. So whatever the initial reading is in-game becomes zero. Try holding a pedal down when you turn it on and see if that becomes the zero point. :D
 
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