...
The galvos need to be operated in differential mode. This is determined by jumper settings on the galvo drivers boards. They are usually shipped configured for ‘common mode, non-inverting’ To switch to differential mode, only jumper 1-3 need to be connected. This usually means that jumper 4-6 needs to be disconnected. (see MicroMax Series 671 Cambridge Technology manual). Differential Mode is important because the range of the offset knob will otherwise not be sufficient.
X and Y inputs are provided through the green input plug (cable provided).
The BNCs on the front panel provide position signals for the the mirrors.
Always make Make sure the driver power is turned off OFF when plugging in the galvos.
...
Zero the inputs through the BNC cables - in other words, short the X and Y inputs or terminate with 50 Ohm.
With the galvos connected - the The LEDs on each driver board should turn green after the power is turned on.
...