Coppell TV Repair LLC offers a brand new replacement for the button / joy-stick component found on control board 34MA64D based on EAX65469603(1.2) PCB which is used in a number of different LED monitors.
Replacing this component requires medium to advanced soldering skills and equipment. We ourselves use hot air, but it is theoretically possible for replacement to be achieved only with a soldering gun...and good amount of experience.
When using hot air one point of focus should be the connector at the back of the board as it is very easy to overheat the PCB and have it detach along with the old broken joystick...so take precautions to avoid such a scenario!