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Old 05-07-2010, 08:38 PM
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freakaftr8 freakaftr8 is offline
Convergence freak!
 
Join Date: Sep 2007
Location: Folsom, CA (no not in the prison)
Posts: 1,778
Well what I thought was an issue turned out to be one. I have a funky sine wave coming from the base of the CONV transistor Q514 so I tested it and it has ashort from B to E and C to E. I noticed it gets warm quickly too. So I pulled it and pulled the HOT too. HOT is fine and compared readings to the CONV and yep the CONV is shorted indeed. Everything else so far checks out. I think that bad solder joint on the connector I talked about earlier killed the transistor. The connector goes into the conv circuit.

In turn I have no power in the HOT circuit. No waveform whatsoever coming from B of HOT. Once I restore the CONV circuit I think I should restore power to the HOT side. Keepi g my fingers crossed.
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