HP-71 Compu-LS module

[twa14]

I have the 9114B\71B\HPIL but I have to replace the 9114B battery. If you could explain the procedure I will do my best to produce the ROMCOPY. This has annoyed me for years as I can't remember if, when I bought the ROM from Martin & Co., it was possible to order a configuration which worked with the Math ROM. I now envisage running it via EMU71 and would love to see the Basic code of the module for the first time! Can you give me some tips on using the LEXfiles to gain access. Its so long ago since I last tried I have forgotten everything.

Regards

Tom Walsh