HP 9830A always turns on with blank display

On 2013 Jul 26, at 3:35 AM, Rik Bos wrote: I was RE'ing the 9830 in the spring, so back then sometime. The past 2 months I have been distracted by getting some teletypes ready for a film production. (Aside from the stress, that was enjoyable.) Why does how long matter? I hope you don't mean to suggest that I'm bound and obligated to point out your mistakes to you. Or do you mean why would I bring it up now? Because it happened to flow out of the discussion. Maybe it seems a little harsh and you didn't like having the mistakes pointed out in public, but I'll point out that when I first mentioned you in this, I did not fault you - I pointed out the cascading consequences of an error that was not yours. You might even have appreciated that as you were the 'victim' of the error. I didn't point out the 6.8K error at the same time because I was being polite and wasn't out to fault you, and maybe figured you might find it of your own accord when you went back to look at the 18.2K issue. I did not interpret your response as being exactly polite. Maybe it's just language diffs and email, maybe it's not. Everything I've said afterwards was a response to something you said to or about me. If you're following things, Rik, I'm not about to contact Tony privately because he's been such an ass in past interactions on the list. For the most part, I try to avoid him on the list and limit interaction to technical matters. If he had limited his first response in this to technical matters I wouldn't have said anything, but he just had to drop in that comment about my RE effort. This isn't the first time this RE/schematics issue has arisen. A few years ago Tony threatened to take all his marbles (away from everyone) and go home because I was RE'ing some other piece of HP equipment and wasn't using his schematic, which I didn't even know existed until well into my effort. If that was the kind of attitude I got for NOT using his schematic, I could only wonder what sort of obligation would be incurred if I did. I have an answer to that but I'm trying to be polite and not say it here. As for contacting you privately, your email address is not in your article. A google search produces a whack of Rik Bos's. There's one at U of Utrecht in Comp Sci, but I have no indication that is you. I haven't run across a web site. And it just hasn't occurred to me to be scanning the list over the months to catch your email address as it goes by on some unrelated topic. How much effort do you expect me to go to to inform you of a mistake you made? Question my intentions or ethics? My sense of ethics is fully intact. I question the character of people who drop comments like that and then indicate their intention to run away (next quote) rather than sticking around to support (or apologise for) their statements. And as I said elsewhere, if you wish to discuss the technical matter of the sensor, I'm here.