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Hi Andrew,
Thanks for the speedy response. I only just noticed the notification in my inbox.
I'm not getting anything when I plug in the 12v power supply battery. No red light or anything to indicate a change when the switch is flicked.
It appears that the problem might be a total coincidence and the failure may be in the switch or some other simple component. I've got the schematics printed off and most of the scope's opened up ATM.
Leave it with me for a minute and I'll see if I can locate the problem. I'm pretty sure it's something to do with the power input part of the main board as I can't see (or smell) any fried components.
Corrosion on an old warhorse unit like this one is a strong possibility.
Speak soon.
Ross.
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