ok, i solved SERVICE MODE bug by myself so there are steps to get into:
1) To enter SERVICE MODE, you must first load your rom.
2) Then, you must go to DIPSWITCH settings and enable SERVICE MODE from off to on like this:
3) Then, you must restart your rom and a multicolor cube will appears on FBA screen like this:
4) Now you must press 1 or 2 keyboard key and u enter SERVICE MODE.
In other words, secret is to enable SERVICE MODE from dipswitch and then restart your rom or FBA.
You cannot enter SERVICE MODE when you are playing your rom so these settings in MAP GAME INPUTS are useless: