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Author Topic: Simpsons PCB controller issue  (Read 2363 times)

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bluemanop

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Simpsons PCB controller issue
« on: March 07, 2005, 11:10:35 pm »
Has anyone ever had a problem with their Simpson's board where the left and right function on all 4 controllers don't want to function?

I have gone into the diagnostic and it seems like player 2 & 3 on the left and right (0 & 1) screen seems to jitter or flicker on and off repeatedly.

Is this just a matter of replacing the stand up ICs in S39 and S40 (page 9 of the manual, upper left)? These parts seem to be pretty standard on these Konami boards.

http://www.arcadedocs.com/vidmanuals/S/simpsons_manual.pdf

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RayB

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Re: Simpsons PCB controller issue
« Reply #1 on: March 07, 2005, 11:57:32 pm »
Did you check for shorts?
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bluemanop

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Re: Simpsons PCB controller issue
« Reply #2 on: March 08, 2005, 12:25:11 am »
Yup, it looks to be a very clean board and actually looks as good as new. No dust or any foriegn objects noted on the board.

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RayB

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Re: Simpsons PCB controller issue
« Reply #3 on: March 08, 2005, 08:43:05 am »
No, I meant with your joystick and button switches and wiring...
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bluemanop

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Re: Simpsons PCB controller issue
« Reply #4 on: March 08, 2005, 10:41:23 pm »
Yup, I am able to plug up two other Konami 4 player jamma boards to this rig without any issues with controller problems.
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