YM-84 Error after power on: 243 Y-AXIS DRIFT ADJUSTMENT NO GOOD

Hi, This error popped up while running a panel through the machine. I put the machine into the Drift adjust mode and the y axis was drifting, but not smoothly like the X-Axis was. The Y-axis was drifting but not smoothly. It was more of a jerking motion. I reduced it as much as possible with the trimpot VR17. When I then went to home the machine after reboot, the Y-axis was not smooth and the motion not continuous. Has anyone seen this before and have a possible solution? My guess is that the Y drift is the symptom and not the cause.

Cheers,

Peter

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