Cable / connection issue

Check and reseat the wire unit between the LDM (1-7) and the Peltier Control Board (J100). Replace if necessary.

malfunction +24V module

Replace the +24V module in the LDM (LDM slot 7). See service procedure "Replacing a Driver Board in an LDM Module".

If problem persists, replace the LDM. See service procedure "Laser Driver Module (LDM)".

malfunction Peltier Control Board

Replace the Peltier Control Board. See "Replacing the Peltier Controller".