sh101 wierd fault

[Andrew Schrock]

Hmm... just a thought: my 101 behaved equally strangely when I
accidentally inverted the keyboard connector mucking around on the inside.
Perhaps somebody was attempting to install a mod and rushed a bit too
much..? (like, uh, me? :) This is definitely the type of thing which would
be totally mysterious unless you check a schematic or another sh-101 for
the correct wire color orientation. 

Andrew

-| Andrew Schrock | aschrock at cs.brandeis.edu |-

On Thu, 25 Mar 1999, Sean Costello wrote:

> david leigh wrote:
> > 
> > I have just been given a sh101 to fix that is displaying a bizare
> > problem. It seems to lock up at power on, with the the key transpose
> > light staying lit or the power and lfo leds flashing after each other.
> > Trying to play it has the effect of illuminating more leds, and it wont
> > work from cv gate in. Has anyone ever heard of anything similar? Its
> > like this synth is possesed!!
> 
> Does it do this while operating on fresh batteries? Sounds like the
> power supply (i.e. the little wallwart) may be to blame.  Try using a
> brand new Boss PSA-120 power supply (or whatever the proper one is).  I
> had similar problems with my 101, and it turns out that the cheapo power
> supply that came with mine had given up the ghost.  Getting a
> Boss-compatible power supply fixed things.  
> 
> Of course, it may be some other problem, in which case the above advice
> probably won't help.  Beep!
> 
> Sean Costello
>