Re: 7A26 CH2 Readout
On Thu, Aug 20, 2020 at 12:29 PM, Raymond Domp Frank wrote:
Yes, as a description of the actual situation, It seems to make sense.I’m sure you are.
That means, if *either* is connected to gnd, the otherI suppose it was very low imperfections. It was just, I think, what seemed to be, some kind metal part, less than a 1/10 of a mm long. I was very hard to tell, even with the magnifying glass I used.
The trace jump doesn't need and doesn't work in parallel with the readoutThat’s what I figured, without understanding how it actually works.
The trace jump circuit is completely on dwg 3.Okay.
Again, I advise setting up and doing the live measurements. Being able to lookI will definitely do that, or try to, next time I run into an issue. And since I bought quite a few things recently that need restoring or minor adjustments, it shouldn’t be long before I do.
Do have a look at the junction of CR621, R620, R621 and C621 in CH2 andThank you. I’m doing my best, in my spare time, to educate myself and try to understand all this, little by little.
Since I had the readout board unscrewed to take those measurements, I figured I’d put back the original Q620.
And guess what. Everything is now back to normal, and working properly. I haven’t tried, but I must have mixed E and C on the equivalent I used. Could that reverse the order of things like I experienced?
Just make life a bitThat is correct, I don’t.
Just one bit of information that you may not be aware of: The whole circuit ofWill definitely read it. Thank you 😊
Don't forget (in general): It's not completely unthinkable that a previousYes, nobody knows what previous owners did. But in this particular case, the original issue Was just the shorted BNC/Identifying Ring like Eric had experienced.
One last question: Are the voltage scale indications (V/div) correct?Yes. Even when the order of operation was reversed, this was correct.