Author Topic: GX4000 weird problem, controllers interfered with each other  (Read 404 times)

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Offline Davor Vitief

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As the topic says when i play any game if/while both players hold button 1 or 2 simultaneously each control pad moves both characters  ??? . I have tried with a controller and a JY3 and different cartridges leading to the same result, any help is welcome, thank you.

Offline Bryce

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There are diodes behind the joystick ports to stop this, probably one of them has failed.

Bryce.

Offline Davor Vitief

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Thank you, i will take a look.