Wiring issue

Check / reseat the cable between the LDM board and the LLS. If problem persists, replace the cable.

Faulty LDM board

Temporary swap two LDM boards and search for “LLS bank x temperature sensor open” errors.

• If the error has swapped to a laser bank driven by the swapped LDM board, replace the LDM board. See service procedure "Replacing a Board in a Laser Drive Module".

• If the error remains on the same laser bank, the problem is with the LLS or LLS connection.

Malfunction LLS

Replace the Light source. See service procedure "Laser Phosphor Light Source".