Ampliphone BU406D waveform

From: Christopher X. Candreva <chris_at_westnet.com>
Date: Sun Jan 26 2003 - 17:29:08 EST

Still working on this Ampliphone HV board, it now looks like a bad waveform
at the BU406D. I have a good wave out of the 555, right up to the
input of the MPSU07. The MPSU07 checks OK, and I've replaced it with an
SK3199 to be sure.

On the output of the MPSU07 (at R13) I have a aprox +60v peak half sine
wave. I assume this is not correct. As I said, the MPSU checks, I've
replaced it anyway, and I see the same thing.

So -- I'm not really sure what to check next -- the T1 transformer ?
`
==========================================================
Chris Candreva -- chris@westnet.com -- (914) 967-7816
WestNet Internet Services of Westchester
http://www.westnet.com/
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Received on Sun Jan 26 14:29:19 2003

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