Re: 7B50 - No SweepCR262
Mark,toggle quoted messageShow quoted text
No need to apologize! I have benefitted from your advice here many times and would not think you're trying to mislead anyone. I'm sure I could have given more information that would have helped you analyze the problems.
Since LOCKOUT may also be an issue, I started looking at TP436, TP434, TP432, and TP416. None of those have any activity on them. They're either stuck HI or LO but not other signal is present on those. I presume that's why LOCKOUT is holding off the sweep but I'm not sure yet.
Regarding the 741, unfortunately that hasn't made any difference. I'm seeing about -2915V as a maximum negative voltage. Something else must be going wrong but haven't done much other analysis on that yet. BTW, my scope is an earlier serial number and I think would have had the 670-1855-00 HV board; however, mine has a 670-1855-01 board in it. I presume that shouldn't matter and may even be a good thing but thought I'd mention it.
Thanks again for all your help.
Barry - N4BUQ
----- Original Message -----
From: "Mark Vincent" <orangeglowaudio@...>