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Make sure the driver power is turned off when plugging in the galvos.
Zero the inputs through the BNC cables
The LEDs on each driver board should turn green after the power is turned on.
The driver boards are arranged in the order
X , Y1, Y2
Y1 is the first mirror in the path.
Y1 is spec'd for M30 (30 degrees peak to peak)
An offset is applied to Y1. This offset is tweaked using the front panel 10 turn pot.
Y2 is spec'd for M40