[sdiy] problematic sh101

[Rude 66]

hi everyone,

i'm trying to troubleshoot an sh101 for a friend (yes senso, that one again!
;-) first i thought it was the sequencer board, since when you push on the
case there, all the lights for the sequencer, arpeggiator etc go on and off
at random. however, i disconnected this board and now i find that also when
the synth is powered up and the case is stretched or pressure is on it in
any way, it completely loses its power. bend or push around a little and it
comes on again.. when working, the synth is fully functional.
inside, i noticed the bottom board being a bit warped. i cleaned it up, and
resoldered some connections that were a bit shady.

my big question is: is all this more likely to be caused by the
wiring/connectors, or by bad solder joints? before i start on resoldering
all connections, i'd like to ask some advice on that.. the wiring looks
solid, and i've taken most of the connectors off and cleaned the contacts.
i've also cleaned and bent the little metal contact points on top of some
boards that appear to make a gnd connection with the metal back plate.

problem is that the plastic case makes it very 'flexible' in that if i play
around with anything, the whole case flexes and it's very difficult to
pinpoint the problem to one area..

any tips? (apart from 'give the thing back, it's a waste of time') ;-)

thanks!

ruud