Code 21373: “LCB – +12v too low”

Situation

Solution

In combination with +24V errors: Bad wiring connection

Check connector J900 on the LCB and the Power board (LDM2–5). Make sure the cable is properly seated. If problem persists, replace the cable.

In combination with +24V errors: Defective +24V module LPM

Replace the Power module in the LDM2–5. See service procedure "Replacing a Board in a Laser Drive Module".

This error alone, or in combination with other LCB-related errors: Malfunction LCB.

Replace the Laser Control Board (LCB). See service procedure "Replacement of the Laser Control Board".