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
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SDS 9 - dead channel
2012-04-17 by Jonathan