Vintage Simmons Drums (UK) Users Group

Jonathan skrev 2012-04-17 16:49:
> 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.

I'd start by opening it up, checking for visual signs of flaws: loose 
wires, burnt components, cracks, shorts (loose screws anyone?) etc.

Next step is to check if the channel is powered properly and if the 
trigger signal reaches the card/part of the card.

Let us know! :)

-- 
electronically yours, jesper

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