HP86 problem

[Alexkumt]

In my opinion. must have changed some internal eprom otherwise I don't explain why the tests pass them, respond to the function keys etc.but then always responds with the error message "Error 88: BAD STMT"for me there is some devilry in the system ROM.

this HP86 computer comes from germany,and perhaps the system was composed differently with somespecial module like the one for CPMsorry for the delay in replying.but I was unable to verify the computer first.

thank you againsorry for the delay