Elecraft PX3 Owner's Manual - Manual (Page 31)

31
Parameter Initialization
Menu parameters are stored in non-volatile EEPROM memory. It is possible, though rare, for parameters to
become altered in such a way as to prevent the firmware from running correctly. If you suspect this, you can
reinitialize parameters to defaults.
Reinitializing the parameters will erase any Function key assignments you have made
and return all of the MENU entries to the default values shown in page 28.
 Write down your function (FN) key assignments and MENU parameters you have set.
 Turn the PX3 OFF (tap the PX3’s
P W R switch, not by turning off your power supply). Skip this step if the
power-on jumper on the I/O board is in the "always-on" position.
 While holding in the
L AB E L S key, tap the P W R switch to turn the PX3 on. After about 2 seconds, let go of
the L AB E L S key. You should now see CONFIGURATION RESET on the LCD screen.
 Re-enter all the menu parameters and function key assignments you wrote down.
 See if the original problem has been resolved.