Is there a difference in the 2 versions of the TR-2 Tremolo

[ppatchmods]

I have been modding a few of these and the older version doesn't have a trim pot and the newer one does. Also, one of my mods that works on the trim pot version doesn't work on the older one. Are the boards layed out differently with different part placement? Any help or schematic would be great! Thanks

[ppatchmods]

Turns out that the schematic is the same, the board layout is just different...which doesn't make anything easier for me. I do a rate led mod with jumper 3 and it's not working on the older version. the jumpers are not labeled on the schematic so who knows where it is!!?? maybe it's a no go on the older one...

[ppatchmods]

anybody got any knowledge?