VMC100/TM02 memory backup battery?

[Viilari]

Hello,

After lots of grief and wondering, I have managed to get the MSD back to machine and machine to work. However, if it is without power for 2 weeks, it loses the MSD again.

I can't find any memory backup battery to replace. Is there one, or is there just one big (dry electrolytic) capacitor somewhere? 24V or logic side?

Thanks!

[mlrs]

There is a battery on the pcb. It doesn't looks like a battery but it is a braun plastic component with the battery inside.