What about the BU406D?
That would be my first guess at the most likely culprit...
Joe
On Mon, 22 Feb 1999 MKDUD@aol.com wrote:
> Hello,
>
> I've got an Amplifone HV board that is blowing 7824's, and I can't figure
> out why. HV transformer is testing good out of curcuit on my Dick Smith LOPT
> tester - I'm getting great rings from 1-9 on the primary (orange to red on the
> WinTron), and good rings on the secondary 4-8 (yellow to green on the
> Wintron). I've looked at all my solder joints, checked all electrolytic caps,
> all diodes, replaced both 3904's, and even replaced the SCR on the HV
> overvoltage curcuit. I don't know what to do next. Any help would be
> appreciated. P.S. What the hell does the MCI (Magnetic correction) do?
>
> Thanks Very Much,
> Michael Kelley
>
>
Received on Mon Feb 22 20:23:52 1999
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