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Old 07-03-2022, 11:53 AM
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Username1 Username1 is offline
Not sure how I got here.
 
Join Date: Dec 2009
Location: Orange County NY
Posts: 3,586
So I looked at this page on a different computer, and it got pictures. I can see the
snippets of Schematics, & the Oscilloscope trace pic. The Scope trace looks very
good. The 190V on pin 11 is high, and at this point I would be wondering about
the 1W & 7W resistors attached to it, and what goes on down stream of that
point. The difference between -78 & -48 on pin 5 is also quite high. I Also
think it's worth taking a current reading off pin 11 as they give a 20ma.
number there..... You know if they print that, it's for a reason, and I
would want to know what it is given the set looks pretty good.
With 30V lower G1 & what looks like a perfect waveform, I
think the picture should be pretty narrow & Boost much
lower (more than 100V lower)..... With a good G1
Drive Waveform, I think I would take a walk on
over to pin 11 and poke around a bit.....

.
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Last edited by Username1; 07-03-2022 at 12:03 PM.
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