Tetris Plus/ Jaleco mega system 32 jamma board problem?

[M.Lanza]

I just bought a Jaleco Mega System 32 jamma board with a Tetris Plus cartridge
a couple of weeks ago for my machine.

The problem is that the game won't remember high scores once the cabinet is turned off.
I thought that the battery was probably dead, but I just replaced it today with a new one
and it still doesent work.

Any ideas?

[M.Lanza]

I haven't gotten any responces yet, so i'll just throw this general question out here
rather than make a new topic for it.

Is it possible that there is a dip switch setting that is keeping the board from
saving high scores once power is cut off, or are there other boards with this feature?

I have an unoffical dip switch setting list that I downloaded from somewhere that
lists three of the dip switches as unused.
The list states that the dip switch settings were taken from the mame source,
so the settings for any single one of these switches or a combination of the three
could just be undocumented, is that correct?

It's just a theory since I checked out the board visually and didn't see anything
obviously wrong with it?