GRAPHTEC FCX4000 Service Manual page 149

(3) Turn off the power after the "READY" was displayed on the LCD of FCX4000.
(4) Turn on the power while pressing the DOWN ARROW key and the ENTER key.
(5) The following menu will be displayed.
The adjustment values are possible to copy to the new main board if the status of SERIAL NUMBER and
the FACTORY_VALUE are showing the "OK".
(6) Confirm that the status of SERIAL NUMBER and the FACTORY_VALUE are showing the "OK".
(7) Turn off the power for the FCX4000.
FCX4000-UM-251-9370
8 ELECTRICAL ADJUSTMENTS
8-38