1. Open RDWorks.

2. Access “Vendor param”(password: rd8888), click “Other’, then check that “Enable protect” is ticked (as shown).

When the box is ticked, unplug the wire from the Dr-proc port (or the wire from the interlock port) of the signal input terminal on the mainboard, and test again (as shown).

• If the laser is no longer being fired and an error code is being displayed, replace the open cover protection sensor with a new, identical one.
• If the laser is still being fired and no error code is being displayed, Replace the mainboard with a new, identical one.