Vintage Simmons Drums (UK) Users Group

The mystery continues - when practicing last night, all channels worked.  It definitely wasn't working, even swapping leads & pads.  If I hadn't gone through that procedure, I would think I had imagined it wasn't working.  
Whilst I can now enjoy the full set, I'm worried that it may disappear again.....
Cheers
Jonathan

--- In Simmons_Drums@yahoogroups.com, "Jonathan" <capnfishy@...> wrote:
>
> Hi,
> I bought these over 2 years ago and have only now been able to set them up properly due to our protracted house move.
> 
> Anyway, they worked fine on the few occasions I explored them when I got them, but now I find that channel 4 is not making any sound.  The trigger LED flashes & I have swapped leads & pads and this points to the brain.
> 
> Can anyone please help me on any common(?) faults or how I go about diagnosing the problem?  I have a multimeter & a very basic grasp of electronics.
> 
> Many thanks
> Jonathan
>