[sdiy] Weird Prodigy problem
Louis van Dompselaar
louis at dompselaar.org
Tue May 3 14:05:33 CEST 2011
I have to correct myself. Yes, -12V isn't affected but that's because the 79M12 seems to catch it.
Voltage does drop *before* the regulator. In fact, it does so even before the recifier diodes.
The whole sine wave shrinks and moves on my scope.
Can a bad transformer cause this? I will try with another one just to be sure.
> -12V is okay by the way, so whatever is causing it is shorting between +12V and ground.
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