Japax ELVY NEC FC9801 CMOS problem

[Vector42]

Hi there,
I am new to CNC Zone so if I am in the wrong place please re-direct me.

I have obtained a Japax ELVY wire cut machine with a NEC FC9801 computer. The computer would not boot off the floppy. The CMOS battery was dead and I have replaced it. Now I need to initiate the CMOS. Does anyone know the key sequence on startup to gain access to the CMOS parameters ? Note that this is a FC9801 computer not a PC9801. I have tried many key sequences but the screen just shows "Enter no of files (0-15)" and then "NEC N-88 BASIC version 2.0".

Also, it is producing a beep sequence on startup (Long, Long, Short). Does anyone know what this means ?

Hoping someone can help - Chris

[Vector42]

To anyone following this thread - I have found the problem. The FC9801 does not appear to have a CMOS screen at all and just relies on the positions of a row of DIP switches. One of these (S2-5) allows initialisation of the CMOS memory. After I did that everything came right.
Chris