Hi rudschul, I am absolutely sure there is not a problem with the main electronics board as I have wired both the X and Y galvos from both outputs from the main board and both work fine when put through the X galvo driver but neither of them work when put through the Y axis driver. Also, both power supply lines work okay so that only leaves the Y axis driver as the culprit.

We will see what happens tomorrow, if I get a quick response.