Software Support > GroovyMAME

H freq tweak

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_harry_:
I've got a problem with the H FREQ potentiometer in my HANTAREX 9000. I've seen there is a tweak mode in the 2020 version of groovyarcade but does not change the H FREQ and only works with the geometry (H-V size and H-V centering) Is there any way to change the H FREQ easily or I have to play with the potentiometer necessarily

_harry_:
I've cleaned the potentiometer and works fine now. I've checked with a TETRIS PCB and everything works fine with the PCB.

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