Vintage Simmons Drums (UK) Users Group

...well i changed the internal battery but that does'nt make a bit of 
difference. my next best bet, i.e. the thing i'm gonna check next is 
the transformer of the powersupply, which i now think is probably 
broken. 
and i also found out a friend of mine has an spm 8:2 as well, and his 
works, so i have something to use as reference...and i have the 
manual, which he doesn't so it's a mutual benefit thing again..:) 
any hints & tips are still very welcome though!