if you enter a terminal type that is valid (according to the define terminal option menu) but is not the correct type for the hardware management console for pseries (hmc) virtual terminal window being used, you may be unable to read the screen, use the function keys, or use the enter key. bypass these difficulties by pressing ctrl-c to reset the terminal. the screen display that results from this reset depends on the mode in which the system is being run:

    1 online normal or maintenance mode - the command prompt displays.

    2 standalone mode or online service mode - the terminal type is reset to dumb, the diagnostic operating instruction panel displays, and you are required to go through the define terminal process again.