![]() Check the RJ-45 cable connection from Maincon PCB (J9) to SKIBF PCB (J28).The cable from the Maincon PCB connected J9 to the SKIBF at J28 is defective. The screen flickers during spindle deceleration (running spindle then pressing "Reset" key) or during heavy cuts. Make sure the beacon light is connected to SKBIF at P10.Ī switch on the SKBIF is not correctly set.Ĭhange the MAPSEL switch to the opposite position. The wires to the, ,, and contactors terminals are loose. ![]() The backlight and LCD data cables are not connected correctly. The supply voltage from PSUP PCB to SKBIF PCB is not correct. There is a problem with the communication cable from Main PCB to SKBIF PCB. Refer to SKBIF PCB / RJH Firmware Update - NGC procedure. Make sure you have SKBIF firmware version 6.6 or higher. Alarm 546 SERIAL KEYBOARD COMMUNICATION FAULT.
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